Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (August 2002, week 5)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Fri, 30 Aug 2002 07:28:12 -0500
Reply-To:     tmarciniak@WI.RR.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Tim Marciniak <tmarciniak@WI.RR.COM>
Subject:      Re: Losing valve lash just after adjustment-why?
Comments: To: Vanagon man <vgonman@MSN.COM>
In-Reply-To:  <OE161Lv7qfI0E1OjWMv0000ec4e@hotmail.com>
Content-Type: text/plain; charset="us-ascii" ; format="flowed"

Ok, that makes sense when things warm up but I did not even move the crankshaft. I think it must be some hydraulic property or the trapped air in the lifter problem.

Tim

>.006 cold lash adjustment turns into zero or so when warm......Things expand >in the motor and take up that clearance.......... >Adam P >81 Westy "The Brick " >70 Single Cab "Whitey" >74 Beetle "Ol Yeller" >73 Transporter (STILL at paint shop) >1988 Vanagon Wolfsburg >75 Campmobile "for sale' >Used Vanagon Parts for sale (mostly aircooled) >----- Original Message ----- >From: "Mark Ingalls" <ingalls_mark@HOTMAIL.COM> >To: <vanagon@GERRY.VANAGON.COM> >Sent: Friday, August 30, 2002 7:16 AM >Subject: Re: Losing valve lash just after adjustment-why? > > >> Please keep us informed on what you find out about this. I plan to go to >> .006 soon. >> >> Thanks, >> Mark Ingalls >> 85 GL >> >> >> >From: Tim Marciniak <tmarciniak@WI.RR.COM> >> >Reply-To: tmarciniak@WI.RR.COM >> >To: vanagon@GERRY.VANAGON.COM >> >Subject: Losing valve lash just after adjustment-why? >> >Date: Thu, 29 Aug 2002 20:38:37 -0500 >> > >> >Just did a compression test and two cylinders were low @ 100 and 106. >> >Heads done about 20,000 miles ago by a VW mechanic (not dealer). Van >> >has ran pretty well since them but lately I have developed a lumpy >> >idle and low manifold vacuum (10-12). I researched everything I >> >could find on the age old valve lifter issue including a call to Bob >> >at Boston Engine were I purchased my heads from. Followed his >> >instructions and adjusted the valves to .006 inch valve lash. I >> >adjusted both intake and exhaust when engine cold. Just to be really >> >thorough I rechecked them almost immediately after I adjusted them >> >(did not rotate the crank yet) and I swear I was back to zero >> >clearance so I readjusted again but did not recheck again cause i >> >wanted to finish and the mosquitos were really bad last nite. I also >> >checked all the valves for clearance before I adjusted and I could >> >not get a .006 inch feeler gauge in on any of them--I am suspected my >> >mechanic may of installed these heads the old way (preloading) and I >> >am starting to see problems now. My question is why did I lose this >> >.006 inch clearance just moments after I made the adjustment? >> > >> >I did start the engine up after adjusting all the valves and it ran >> >pretty much the same, initially the manifold vacuum was about 14 but >> >then dropped to 11-12 after the engine warmed up and idle was lumpy. >> > >> >Could it be the lifters are doing something strange? I am running >> >20W-50 for the summer. >> > >> >Tim >> >-- >> >> >> >> >> Mark Ingalls >> Nebraska City >> 85 GL w/ dash mounted digi-tool, H4s with relays, Agilis tires, needs a >> stereo..... >> >> >> _________________________________________________________________ >> Chat with friends online, try MSN Messenger: http://messenger.msn.com >>

--


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.