Lash Adjusters

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0 height="100%"><tr> <td valign="top" width=200 BGCOLOR="#333366" TEXT="#080000" background="040c8c00dkcfsz.png"> <div> <A HREF="id31.htm" TARGET="_top" TITLE="1995 3000GT Spyder VR4"><U><B>Back</B></U></A></div> </td> <td valign="top" BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <FONT SIZE="5" COLOR="#666633" FACE="Arial" ><B>JNS Engineering</B></FONT>     |     <A HREF="index.htm" TARGET="_top" TITLE="JNS Engineering"><U>home</U></A></div> <div> <A HREF="id36.htm" TARGET="_top" TITLE="Powder Coated Calipers"><U>Powder Coated Calipers</U></A>   |   <A HREF="id38.htm" TARGET="_top" TITLE="Remote Top / Remote Start"><U>Remote Top / Remote Start</U></A>   |   <A HREF="id37.htm" TARGET="_top" TITLE="Custom Leather Seats"><U>Custom Leather Seats</U></A>   |   <B>Lash Adjusters</B>   |   <A HREF="id40.htm" TARGET="_top" TITLE="Throttle Body Rebuild"><U>Throttle Body Rebuild</U></A>   |   <A HREF="id41.htm" TARGET="_top" TITLE="Chrome Upper Engine"><U>Chrome Upper Engine</U></A>   |   <A HREF="id44.htm" TARGET="_top" TITLE="Steering Boots"><U>Steering Boots</U></A>   |   <A HREF="id45.htm" TARGET="_top" TITLE="ECS Struts and Springs"><U>ECS Struts and Springs</U></A>   |   <A HREF="id46.htm" TARGET="_top" TITLE="Volk SF Challenge"><U>Volk SF Challenge</U></A>   |   <A HREF="id48.htm" TARGET="_top" TITLE="Wheel Stud Replacement"><U>Wheel Stud Replacement</U></A>   |   <A HREF="id49.htm" TARGET="_top" TITLE="ABS Troubleshooting"><U>ABS Troubleshooting</U></A>   |   <A HREF="id50.htm" TARGET="_top" TITLE="Dyno Day 10/10/10 at FSR"><U>Dyno Day 10/10/10 at FSR</U></A>   |   <A HREF="id51.htm" TARGET="_top" TITLE="Spyder mechanisms"><U>Spyder mechanisms</U></A>   |   <A HREF="id53.htm" TARGET="_top" TITLE="AWD Driveline"><U>AWD Driveline</U></A>   |   <A HREF="id52.htm" TARGET="_top" TITLE="Respray Project"><U>Respray Project</U></A>   |   <A HREF="id54.htm" TARGET="_top" TITLE="Clear Cam Gear Covers"><U>Clear Cam Gear Covers</U></A>   |   <A HREF="id42.htm" TARGET="_top" TITLE="Pics"><U>Pics</U></A></div> <div> <I>Lash Adjusters</I></div> <div> One of the common problems with the 6G72 engine especially on the 91-95 cars is lifter tick.  The factory service manual calls out procedures for checking and replacing the lash adjusters.  I puchased the 99 lifters through a group buy on 3SI.org for roughly $5 a piece.  That's a really good price for them and especially for the improvement you'll see.  A special tool is required to compress the valve springs and release the rockers arms so the lifters can be extracted.  This tool is a copy of the original Mitsubishi tool.  It works for the 4 cylinder DSMs as well as the 6 cylinder 6G72.</div> <bR> <div> <IMG SRC="113800d0.jpg" border=0 width="640" height="269" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> You'll need to tear down the intake, removing the plenum and valve covers.  The valve covers have to be pried off since they are installed using a gasket sealer.  The lower intake manifold, fuel rails and water housing need not be removed however mine were out for other work to be done.</div> <bR> <div> <IMG SRC="11580a90.jpg" border=0 width="640" height="425" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> <IMG SRC="11780a90.jpg" border=0 width="640" height="425" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> Some people use a couple of screwdrivers with duct tape over the sharp edges to pry off the rockers.  This method can work but sometimes the rockers end up shooting across your garage when they pop off!  Even with the proper tool it takes time to compress the springs and replace each of the 24 lifters.  Make sure you soak the new lifters in oil overnight to get the air out of them.  You'll only be able to access around 4 lifters in each head at any one time as the cams are always blocking the travel of the lifters.  You'll need to remove the driver's front wheel to access the crank through the hole in the plastic shield.  A 1/2 inch driver socket and extension is needed.  Turn the crank appropriately to access the other lifters.  I kept a crude drawing of the heads and checked off each lifter as I replaced it.</div> <bR> <div> <IMG SRC="11980a90.jpg" border=0 width="640" height="425" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> <IMG SRC="11b80a90.jpg" border=0 width="640" height="425" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> After all the lifters are replaced, install the valve covers with new gaskets and RTV sealant.  I used Permetex blue and coated the whole gasket with a thin layer.  It's easier to work the gasket alone and then bring the valve cover to the gasket.  I did the three spark plug gaskets first and then fitted the main gasket into the valve cover.  I then let the cover sit on the cardboard with the weight of the cover pressing down on the newly coated gaskets while I went to the car and installed a thin layer of RTV around the rim of the head.  Then I installed the valve cover and torqued it down to factory specs.</div> <bR> <div> <IMG SRC="11d80a90.jpg" border=0 width="640" height="425" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> Here's the rear one completed and installed</div> <bR> <div> <IMG SRC="12180a90.jpg" border=0 width="640" height="425" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <bR> </td> </tr></table></body>