[原创]YAMAHA XS250 发动机的拆装顺序及注意事项

liushu · 发表于 2007-3-8 17:05

一：发动机的拆卸 <shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_s1026" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 1; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 144.7pt; POSITION: absolute; HEIGHT: 164.1pt; TEXT-ALIGN: left;"><imagedata otitle="" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image001.wmz"></imagedata></shape>                                      该车有两种款式：街车和太子式，发动机为直列双缸、双顶置凸轮轴、风冷式。其曲轴相位角度为180°。                                                                                                                   1：拆卸发动机的汽缸盖罩              1-1 <shape id="_x0000_s1028" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 3; LEFT: 0px; MARGIN-LEFT: 180pt; WIDTH: 126pt; POSITION: absolute; HEIGHT: 78.05pt; TEXT-ALIGN: left;"><imagedata otitle="4" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image003.jpg"></imagedata></shape><shape id="_x0000_s1029" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 4; LEFT: 0px; MARGIN-LEFT: 315pt; WIDTH: 108pt; POSITION: absolute; HEIGHT: 75.65pt; TEXT-ALIGN: left;"><imagedata otitle="5" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image005.jpg"></imagedata></shape><shape id="_x0000_s1027" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 2; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 171.15pt; POSITION: absolute; HEIGHT: 139.55pt; TEXT-ALIGN: left;"><imagedata otitle="2" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image007.jpg"></imagedata></shape>                                                                                     1-3                 1-4     1-2     仔细观察配气凸轮轴桃尖的夹角，该发动机的桃尖夹角为90°（图1-2）把1缸活塞转到上止点时，配气凸轮轴端的点标记与压盖的刻线标记是对齐的（图1-3、1-4）。压盖上的箭头标记指向发动机的右侧。其中1缸进气凸轮轴压盖的识别标记是I1，2缸进气凸轮轴压盖的识别标记是I3；1缸排气凸轮轴压盖的识别标记是E1，2缸排气凸轮轴压盖的识别标记是E3。<shape id="_x0000_s1030" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 5; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 162pt; POSITION: absolute; HEIGHT: 145.85pt; TEXT-ALIGN: left;"><imagedata otitle="8" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image009.jpg"></imagedata></shape>                                    <shape id="_x0000_s1031" type="#_x0000_t75" style="MARGIN-TOP: 65.1pt; Z-INDEX: 6; LEFT: 0px; MARGIN-LEFT: 255pt; WIDTH: 126pt; POSITION: absolute; HEIGHT: 117.85pt; TEXT-ALIGN: left;"><imagedata otitle="9" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image011.jpg"></imagedata></shape>                                        转动发动机再仔细检查时规链条的涨紧是否均匀、链条是否老化。在转动时，如果发现时规链有局部的拉长现象，除链条本身的原因外，还要注意考虑检查配气凸轮轴和曲轴是否出现弯曲的情况。
                                                                                                                                                                                               1-6                                                                                    1-5   2：拆卸涨紧器。（图1-6）                                                          <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">拆卸涨紧器时，要先将涨紧器的调节螺丝卸下，再取出涨紧弹簧，最后再取下涨紧器的主体。 <shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_s1027" type="#_x0000_t75" style="MARGIN-TOP: -7.8pt; Z-INDEX: 2; LEFT: 0px; MARGIN-LEFT: 261pt; WIDTH: 119.05pt; POSITION: absolute; HEIGHT: 132.6pt; TEXT-ALIGN: left;"><imagedata otitle="11" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image001.jpg"></imagedata></shape><shape id="_x0000_s1026" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 1; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 126pt; POSITION: absolute; HEIGHT: 125.55pt; TEXT-ALIGN: left;"><imagedata otitle="10" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image003.jpg"></imagedata></shape>                       3：拆下配气凸轮轴的                           压盖。（2-1）                        4：取走时规链条的导 向板。（2-2）               2-1                                          2-2 <shape id="_x0000_s1028" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 3; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 135pt; POSITION: absolute; HEIGHT: 116.75pt; TEXT-ALIGN: left;"><imagedata otitle="13" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image005.jpg"></imagedata></shape><shape id="_x0000_s1029" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 4; LEFT: 0px; MARGIN-LEFT: 261pt; WIDTH: 135pt; POSITION: absolute; HEIGHT: 114.95pt; TEXT-ALIGN: left;"><imagedata otitle="14" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image006.jpg"></imagedata></shape>                             5：取下配气凸轮轴。                              （图2-3）                         6：再把涨紧压条拆下                             （图2-4）
              2-3                                            2-4 把配气凸轮轴拆下以后，要注意观察凸轮轴上的标记。标有字母“I”的为进气凸轮轴的识别记号；标有字母“E”的为排气凸轮轴的识别记号。  <shape id="_x0000_s1030" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 5; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 153pt; POSITION: absolute; HEIGHT: 139.1pt; TEXT-ALIGN: left;"><imagedata otitle="15" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image009.jpg"></imagedata></shape><shape id="_x0000_s1032" type="#_x0000_t75" style="MARGIN-TOP: 1.35pt; Z-INDEX: 7; LEFT: 0px; MARGIN-LEFT: 158.25pt; WIDTH: 126pt; POSITION: absolute; HEIGHT: 103.1pt; TEXT-ALIGN: left;"><imagedata otitle="17" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image010.jpg"></imagedata></shape><shape id="_x0000_s1031" type="#_x0000_t75" style="MARGIN-TOP: 1.8pt; Z-INDEX: 6; LEFT: 0px; MARGIN-LEFT: 289.5pt; WIDTH: 117pt; POSITION: absolute; HEIGHT: 92pt; TEXT-ALIGN: left;"><imagedata otitle="16" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image011.jpg"></imagedata></shape>                                                                          2-7                                      2-6                                7：拆下汽缸盖。（图2-5）
 2-5                    该发动机采用的是顶杯式气门机构，（图2-6）。借助磁性工具可将间隙调整垫片等小部件取出来。（图2-7） <shape id="_x0000_s1033" type="#_x0000_t75" wrapcoords="-90 0 -90 21490 21600 21490 21600 0 -90 0" style="MARGIN-TOP: 5.25pt; Z-INDEX: -2; LEFT: 0px; MARGIN-LEFT: 225pt; WIDTH: 180pt; POSITION: absolute; HEIGHT: 147.25pt; TEXT-ALIGN: left; mso-wrap-edited: f;"><imagedata otitle="18" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image015.jpg"></imagedata></shape>配气凸轮轴 <shape id="_x0000_s1034" type="#_x0000_t75" style="MARGIN-TOP: 1.95pt; Z-INDEX: 9; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 171pt; POSITION: absolute; HEIGHT: 139.9pt; TEXT-ALIGN: left;"><imagedata otitle="20" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image017.jpg"></imagedata></shape>                               2-8                                   2-9   缸头拆下以后，就要注意检查活塞顶部的积炭：它的颜色、形状、质地等，以此作为判断故障的信息；然后看活塞顶部有无撞击的痕迹；再就是用手晃动活塞，感觉一下活塞与气缸的配合间隙是否过大（图2-8）。另外需要注意的就是发动机的汽缸垫片（2-9），它采用的是石棉垫片。拆发动机是尽可能的别破坏掉，由于选用的配件垫片的质地不可能和原车的一致，就有可能影响配合间隙。万一该垫片损坏，一定要选用高强度的石棉纸来做。<shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_s1026" type="#_x0000_t75" style="MARGIN-TOP: 11.85pt; 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Z-INDEX: 6; LEFT: 0px; MARGIN-LEFT: 141.75pt; WIDTH: 125.55pt; POSITION: absolute; HEIGHT: 117.05pt; TEXT-ALIGN: left;"><imagedata otitle="24" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image006.jpg"></imagedata></shape><shape id="_x0000_s1029" type="#_x0000_t75" style="MARGIN-TOP: 3.75pt; Z-INDEX: 4; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 129pt; POSITION: absolute; HEIGHT: 117pt; TEXT-ALIGN: left;"><imagedata otitle="23" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image007.jpg"></imagedata></shape>                         3-3                     3-4                    3-5   9：拆下触发盘边盖        10：取下触发盘紧固螺丝   11：取下触发盘   <shape id="_x0000_s1030" type="#_x0000_t75" style="MARGIN-TOP: 2.4pt; Z-INDEX: 5; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 129.25pt; POSITION: absolute; HEIGHT: 116.95pt; TEXT-ALIGN: left;"><imagedata otitle="26" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image010.jpg"></imagedata></shape><shape id="_x0000_s1034" type="#_x0000_t75" style="MARGIN-TOP: 3.9pt; Z-INDEX: 9; LEFT: 0px; MARGIN-LEFT: 311.25pt; WIDTH: 96.4pt; POSITION: absolute; HEIGHT: 117.1pt; TEXT-ALIGN: left;"><imagedata otitle="28" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image011.jpg"></imagedata></shape><shape id="_x0000_s1032" type="#_x0000_t75" style="MARGIN-TOP: 3.15pt; Z-INDEX: 7; LEFT: 0px; MARGIN-LEFT: 163.5pt; WIDTH: 112.25pt; POSITION: absolute; HEIGHT: 117.1pt; TEXT-ALIGN: left;"><imagedata otitle="27" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image012.jpg"></imagedata></shape>                                                                                   3-6                         3-7                     3-8 触发盘                  12：拆下定子盘          13：拆发电机边盖   <shape id="_x0000_s1033" type="#_x0000_t75" style="MARGIN-TOP: 8.85pt; Z-INDEX: 8; LEFT: 0px; MARGIN-LEFT: 306pt; WIDTH: 105.15pt; POSITION: absolute; HEIGHT: 116.9pt; TEXT-ALIGN: left;"><imagedata otitle="31" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image014.jpg"></imagedata></shape><shape id="_x0000_s1036" type="#_x0000_t75" style="MARGIN-TOP: 6.3pt; Z-INDEX: 11; LEFT: 0px; MARGIN-LEFT: 9pt; WIDTH: 96.65pt; POSITION: absolute; HEIGHT: 117pt; TEXT-ALIGN: left;"><imagedata otitle="29" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image015.jpg"></imagedata></shape><shape id="_x0000_s1035" type="#_x0000_t75" style="MARGIN-TOP: 7.35pt; Z-INDEX: 10; LEFT: 0px; MARGIN-LEFT: 158.25pt; WIDTH: 87.6pt; POSITION: absolute; HEIGHT: 117pt; TEXT-ALIGN: left;"><imagedata otitle="30" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image016.jpg"></imagedata></shape>                         4-1                     4-2                       4-3 14：取下转子紧固螺丝      15：用专用拉码拆下转子   16：拉出定子线圈   <shape id="_x0000_s1037" type="#_x0000_t75" wrapcoords="-109 0 -109 21485 21600 21485 21600 0 -109 0" style="MARGIN-TOP: 7.8pt; Z-INDEX: 12; LEFT: 0px; MARGIN-LEFT: 243pt; WIDTH: 153pt; POSITION: absolute; HEIGHT: 145.3pt; TEXT-ALIGN: left; mso-wrap-edited: f;"><imagedata otitle="33" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image017.jpg"></imagedata></shape><shape id="_x0000_s1038" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 13; LEFT: 0px; MARGIN-LEFT: 18pt; WIDTH: 153pt; POSITION: absolute; HEIGHT: 144.25pt; TEXT-ALIGN: left;"><imagedata otitle="32" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image018.jpg"></imagedata></shape>                                   4-4                                     4-5    17：拆下离合器边盖                        18：取出离合器 <shape id="_x0000_s1040" type="#_x0000_t75" style="MARGIN-TOP: 9pt; Z-INDEX: 15; LEFT: 0px; MARGIN-LEFT: 288.75pt; WIDTH: 122.1pt; POSITION: absolute; HEIGHT: 148.2pt; TEXT-ALIGN: left;"><imagedata otitle="35" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image021.jpg"></imagedata></shape>                                                                                  <shape id="_x0000_s1039" type="#_x0000_t75" style="MARGIN-TOP: 8.45pt; Z-INDEX: 14; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 93pt; POSITION: absolute; HEIGHT: 139.75pt; TEXT-ALIGN: left;"><imagedata otitle="34" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image023.jpg"></imagedata></shape>                  19：拆下主动齿轮锁紧螺母。                       （图4-6）                        20：取下主动齿轮。                        （图4-7）            4-6                                              4-7     <shape id="_x0000_s1041" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 16; LEFT: 0px; MARGIN-LEFT: 241.5pt; WIDTH: 171pt; POSITION: absolute; HEIGHT: 139.45pt; TEXT-ALIGN: left;"><imagedata otitle="36" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image025.jpg"></imagedata></shape>         主动齿轮朝向箱体的一面非常的光滑，再仔细
观察这个部位的箱体的上边，有一条半圆弧的凸起。主动齿轮被螺母锁紧后，就与这个突起紧密贴合，这样曲轴就不能左右窜动。这一部位起到把曲轴定位的作用。                                                                                                          4-8    主体。 <shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_s1027" type="#_x0000_t75" style="MARGIN-TOP: -7.8pt; Z-INDEX: 2; LEFT: 0px; MARGIN-LEFT: 261pt; WIDTH: 119.05pt; POSITION: absolute; HEIGHT: 132.6pt; TEXT-ALIGN: left;"><imagedata otitle="11" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image001.jpg"></imagedata></shape><shape id="_x0000_s1026" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 1; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 126pt; POSITION: absolute; HEIGHT: 125.55pt; TEXT-ALIGN: left;"><imagedata otitle="10" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image003.jpg"></imagedata></shape>                       3：拆下配气凸轮轴的                           压盖。（2-1）                        4：取走时规链条的导 向板。（2-2）               2-1                                          2-2 <shape id="_x0000_s1028" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 3; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 135pt; POSITION: absolute; HEIGHT: 116.75pt; TEXT-ALIGN: left;"><imagedata otitle="13" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image005.jpg"></imagedata></shape><shape id="_x0000_s1029" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 4; LEFT: 0px; MARGIN-LEFT: 261pt; WIDTH: 135pt; POSITION: absolute; HEIGHT: 114.95pt; TEXT-ALIGN: left;"><imagedata otitle="14" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image006.jpg"></imagedata></shape>                             5：取下配气凸轮轴。                              （图2-3）                         6：再把涨紧压条拆下                             （图2-4）
              2-3                                            2-4 把配气凸轮轴拆下以后，要注意观察凸轮轴上的标记。标有字母“I”的为进气凸轮轴的识别记号；标有字母“E”的为排气凸轮轴的识别记号。  <shape id="_x0000_s1030" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 5; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 153pt; POSITION: absolute; HEIGHT: 139.1pt; TEXT-ALIGN: left;"><imagedata otitle="15" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image009.jpg"></imagedata></shape><shape id="_x0000_s1032" type="#_x0000_t75" style="MARGIN-TOP: 1.35pt; Z-INDEX: 7; LEFT: 0px; MARGIN-LEFT: 158.25pt; WIDTH: 126pt; POSITION: absolute; HEIGHT: 103.1pt; TEXT-ALIGN: left;"><imagedata otitle="17" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image010.jpg"></imagedata></shape><shape id="_x0000_s1031" type="#_x0000_t75" style="MARGIN-TOP: 1.8pt; Z-INDEX: 6; LEFT: 0px; MARGIN-LEFT: 289.5pt; WIDTH: 117pt; POSITION: absolute; HEIGHT: 92pt; TEXT-ALIGN: left;"><imagedata otitle="16" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image011.jpg"></imagedata></shape>                                                                          2-7                                      2-6                                7：拆下汽缸盖。（图2-5）
 2-5                    该发动机采用的是顶杯式气门机构，（图2-6）。借助磁性工具可将间隙调整垫片等小部件取出来。（图2-7） <shape id="_x0000_s1033" type="#_x0000_t75" wrapcoords="-90 0 -90 21490 21600 21490 21600 0 -90 0" style="MARGIN-TOP: 5.25pt; Z-INDEX: -2; LEFT: 0px; MARGIN-LEFT: 225pt; WIDTH: 180pt; POSITION: absolute; HEIGHT: 147.25pt; TEXT-ALIGN: left; mso-wrap-edited: f;"><imagedata otitle="18" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image015.jpg"></imagedata></shape>配气凸轮轴 <shape id="_x0000_s1034" type="#_x0000_t75" style="MARGIN-TOP: 1.95pt; Z-INDEX: 9; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 171pt; POSITION: absolute; HEIGHT: 139.9pt; TEXT-ALIGN: left;"><imagedata otitle="20" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image017.jpg"></imagedata></shape>                               2-8                                   2-9   缸头拆下以后，就要注意检查活塞顶部的积炭：它的颜色、形状、质地等，以此作为判断故障的信息；然后看活塞顶部有无撞击的痕迹；再就是用手晃动活塞，感觉一下活塞与气缸的配合间隙是否过大（图2-8）。另外需要注意的就是发动机的汽缸垫片（2-9），它采用的是石棉垫片。拆发动机是尽可能的别破坏掉，由于选用的配件垫片的质地不可能和原车的一致，就有可能影响配合间隙。万一该垫片损坏，一定要选用高强度的石棉纸来做。<shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" opreferrelative="t" ospt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path oconnecttype="rect" gradientshapeok="t" oextrusionok="f"></path><lock aspectratio="t" vext="edit"></lock></shapetype><shape id="_x0000_s1026" type="#_x0000_t75" style="MARGIN-TOP: 11.85pt; Z-INDEX: 1; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 144.15pt; POSITION: absolute; HEIGHT: 143.15pt; TEXT-ALIGN: left;"><imagedata otitle="21" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image001.jpg"></imagedata></shape>                           <shape id="_x0000_s1027" type="#_x0000_t75" style="MARGIN-TOP: 1.95pt; Z-INDEX: 2; LEFT: 0px; MARGIN-LEFT: 207pt; WIDTH: 194.9pt; POSITION: absolute; HEIGHT: 138.2pt; TEXT-ALIGN: left;"><imagedata otitle="22" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image003.jpg"></imagedata></shape>                            3-1                                      3-2      8：拔下汽缸体。（图3-1） 取下汽缸体以后就要注意观察活塞的磨损痕迹，活塞环的开口所处的位置，积炭的分布，有窜油的痕迹，有无过热变色的情况等。出这些外，还要检查活塞与连杆小头的配合是否灵活或松旷，连杆大头与曲轴的配合是否灵活或松旷。（有关轴瓦的知识后面有专门介绍。）  <shape id="_x0000_s1028" type="#_x0000_t75" style="MARGIN-TOP: 2.1pt; Z-INDEX: 3; LEFT: 0px; MARGIN-LEFT: 279pt; WIDTH: 129.85pt; POSITION: absolute; HEIGHT: 117.05pt; TEXT-ALIGN: left;"><imagedata otitle="25" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image005.jpg"></imagedata></shape><shape id="_x0000_s1031" type="#_x0000_t75" style="MARGIN-TOP: 2.85pt; Z-INDEX: 6; LEFT: 0px; MARGIN-LEFT: 141.75pt; WIDTH: 125.55pt; POSITION: absolute; HEIGHT: 117.05pt; TEXT-ALIGN: left;"><imagedata otitle="24" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image006.jpg"></imagedata></shape><shape id="_x0000_s1029" type="#_x0000_t75" style="MARGIN-TOP: 3.75pt; Z-INDEX: 4; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 129pt; POSITION: absolute; HEIGHT: 117pt; TEXT-ALIGN: left;"><imagedata otitle="23" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image007.jpg"></imagedata></shape>                         3-3                     3-4                    3-5   9：拆下触发盘边盖        10：取下触发盘紧固螺丝   11：取下触发盘   <shape id="_x0000_s1030" type="#_x0000_t75" style="MARGIN-TOP: 2.4pt; Z-INDEX: 5; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 129.25pt; POSITION: absolute; HEIGHT: 116.95pt; TEXT-ALIGN: left;"><imagedata otitle="26" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image010.jpg"></imagedata></shape><shape id="_x0000_s1034" type="#_x0000_t75" style="MARGIN-TOP: 3.9pt; 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Z-INDEX: 11; LEFT: 0px; MARGIN-LEFT: 9pt; WIDTH: 96.65pt; POSITION: absolute; HEIGHT: 117pt; TEXT-ALIGN: left;"><imagedata otitle="29" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image015.jpg"></imagedata></shape><shape id="_x0000_s1035" type="#_x0000_t75" style="MARGIN-TOP: 7.35pt; Z-INDEX: 10; LEFT: 0px; MARGIN-LEFT: 158.25pt; WIDTH: 87.6pt; POSITION: absolute; HEIGHT: 117pt; TEXT-ALIGN: left;"><imagedata otitle="30" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image016.jpg"></imagedata></shape>                         4-1                     4-2                       4-3 14：取下转子紧固螺丝      15：用专用拉码拆下转子   16：拉出定子线圈   <shape id="_x0000_s1037" type="#_x0000_t75" wrapcoords="-109 0 -109 21485 21600 21485 21600 0 -109 0" style="MARGIN-TOP: 7.8pt; Z-INDEX: 12; LEFT: 0px; MARGIN-LEFT: 243pt; WIDTH: 153pt; POSITION: absolute; HEIGHT: 145.3pt; TEXT-ALIGN: left; mso-wrap-edited: f;"><imagedata otitle="33" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image017.jpg"></imagedata></shape><shape id="_x0000_s1038" type="#_x0000_t75" style="MARGIN-TOP: 7.8pt; Z-INDEX: 13; LEFT: 0px; MARGIN-LEFT: 18pt; WIDTH: 153pt; POSITION: absolute; HEIGHT: 144.25pt; TEXT-ALIGN: left;"><imagedata otitle="32" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image018.jpg"></imagedata></shape>                                   4-4                                     4-5    17：拆下离合器边盖                        18：取出离合器 <shape id="_x0000_s1040" type="#_x0000_t75" style="MARGIN-TOP: 9pt; Z-INDEX: 15; LEFT: 0px; MARGIN-LEFT: 288.75pt; WIDTH: 122.1pt; POSITION: absolute; HEIGHT: 148.2pt; TEXT-ALIGN: left;"><imagedata otitle="35" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image021.jpg"></imagedata></shape>                                                                                  <shape id="_x0000_s1039" type="#_x0000_t75" style="MARGIN-TOP: 8.45pt; Z-INDEX: 14; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 93pt; POSITION: absolute; HEIGHT: 139.75pt; TEXT-ALIGN: left;"><imagedata otitle="34" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image023.jpg"></imagedata></shape>                  19：拆下主动齿轮锁紧螺母。                       （图4-6）                        20：取下主动齿轮。                        （图4-7）            4-6                                              4-7     <shape id="_x0000_s1041" type="#_x0000_t75" style="MARGIN-TOP: 0px; Z-INDEX: 16; LEFT: 0px; MARGIN-LEFT: 241.5pt; WIDTH: 171pt; POSITION: absolute; HEIGHT: 139.45pt; TEXT-ALIGN: left;"><imagedata otitle="36" src="file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/msoclip1/01/clip_image025.jpg"></imagedata></shape>         主动齿轮朝向箱体的一面非常的光滑，再仔细
观察这个部位的箱体的上边，有一条半圆弧的凸起。主动齿轮被螺母锁紧后，就与这个突起紧密贴合，这样曲轴就不能左右窜动。这一部位起到把曲轴定位的作用。                                                                                                          4-8    [em02][em02]

liushu · 发表于 2007-3-8 17:07

怎么会是这样的啊?图片哪里去了啊?版式也不对啊

liushu · 发表于 2007-3-8 17:16

大哥急死人了,我怎么也搞不好了,怎么办啊?我的QQ282240017快联系我啊

五羊 · 发表于 2007-3-9 14:38

是啊,图呢,你是从本地上传图片吗?