| It is currently Thu Jun 26, 2025 12:19 pm |
|
Page 1 of 1 |
[ 5 posts ] |
| Print view | Previous topic | Next topic |
Valve not staying lashed
| Author | Message |
|---|---|
|
MMT Member  Joined: Tue Sep 29, 2009 8:17 am Posts: 7 
|
 Valve not staying lashedI have a 35 GTR with decked heads, GT cam, mikuni, and MPE and the exhaust valve on #1 head will not stay lashed. 1 hr of ride time and it will ping and the tappet will slap obnoxiously. I have tightened the nut as tight as i can get it. Any ideas what could be causing it? or suggestions to fix it?
|
| Tue Dec 29, 2009 9:02 am |
|
|
|
|
|
Re: Valve not staying lashed check your rocker bolt for tightness
cam may be bad |
| Tue Dec 29, 2009 9:11 am |
|
|
|
|
MMT Member Joined: Tue Sep 29, 2009 8:17 am Posts: 7
|
Re: Valve not staying lashed Thanks coondik, i replaced rocker, stud, set screw and nut thinking it was a bad rocker/set screw. Stud has remained tight. GT recommended loctite on the set screw and nut so i guess i'll try that. im hoping its not the cam...
|
| Tue Dec 29, 2009 9:45 am |
|
|
|
|
|
Re: Valve not staying lashed swap that rocker, bolt, adjustment stud, nut, & push rod with the one right next to it. that will help u isolate the problem. if the problem still occurs it may be that lobe on the cam. make shure your settin' @ 1/4 past TDC. may wanna check the valve as well. could be a bent stem or bad guide that's causing it to stick & not fully close!
|
| Tue Dec 29, 2009 11:00 am |
|
|
|
|
MMT 1000 Club
Joined: Tue Jan 13, 2009 5:15 pm Posts: 1361 Location: Longview, TX
|
Re: Valve not staying lashed what did u find out?
_________________ 20 x 54 with 9/16 bottom powered by Twin BLACK CHICKS with FPR The Breast Cancer site is having trouble getting enough people to click on it daily to meet their quota of donating at least one free mammogram a day to an underprivileged woman. Go here and click on the "donate a mammogram". This doesn't cost you a thing. Their corporate sponsors/advertisers use the number of daily visits to donate mammogram in exchange for advertising. http://www.thebreastcancersite.com |
| Sun Jan 03, 2010 10:18 am |
|
|
|
|
|
Page 1 of 1 |
[ 5 posts ] |
|
All times are UTC - 6 hours |
Who is online |
Users browsing this forum: No registered users and 130 guests |
| You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum |