gambler87 Posted May 21, 2016 Report Posted May 21, 2016 Wasn't there a thread on here a while ago about doing something to the back oil holes in the cam carriers to increase oiling to the cams and the valvetrain? Can't seem to find it. Sent from my SAMSUNG-SM-G920A using Tapatalk Quote
Imp558 Posted May 21, 2016 Report Posted May 21, 2016 Something isn't well with the search function here. I spent a long time looking for a thread yesterday and I wouldn't have found it if I hadn't started it. Quote
mfewtrail Posted May 21, 2016 Report Posted May 21, 2016 http://60degreev6.com/forum/showthread.php/49738-LQ1-Service-Bulletin-57-61-09-Lifter-tick-%28cold%29 Are you thinking of this by Schurkey? rich_e777 1 Quote
55trucker Posted May 21, 2016 Report Posted May 21, 2016 Interesting, that bulletin must have come into being after 97 from the point of from 91 thru 96 the dealership techies were instructed by GM if any DOHC engines come in for mechanical problems (other than a timing belt) . pull the engine & replace it.....do not pull it apart while under warranty my engine was replaced twice by the same dealership...by the same mechanic ( being paid on a flat rate basis he wasn't very happy & came to unlike my car).. Quote
RobertISaar Posted May 21, 2016 Report Posted May 21, 2016 bulletin is dated November, 1995. relevant to: all 91-94 LQ1 engines and 95 1W prior to VIN breakpoint S9148603. all other 95+ engines already have this modification from the factory. Quote
Schurkey Posted May 23, 2016 Report Posted May 23, 2016 [Elvis Voice]Thankyew, thankyew verra much.[/Elvis Voice] Quote
Padgett Posted May 23, 2016 Report Posted May 23, 2016 404 error on the bulletin, anyone have a copy ? Quote
Schurkey Posted May 25, 2016 Report Posted May 25, 2016 I'm not sure I even copied 'n' pasted a copy from that link. If I did, I can't find it now. I'd love to have an on-line source for that info. If someone has a scan, I'd host it on my web site. Quote
pshojo Posted May 25, 2016 Report Posted May 25, 2016 having lifter tick when cold, what would that affect? Quote
Schurkey Posted May 26, 2016 Report Posted May 26, 2016 It was CLAIMED to "affect" nothing. An annoyance. In real life, I suspect that it would irritate the knock sensor leading to retarded timing, poor power and poor fuel mileage. But what the hell do I know--I don't have a zillion automotive engineers at my disposal. I do know that I performed the mod on my '93; and someday I'll do it on my '92 because it's cheap and fun and can't hurt anything as long as all the drill 'n' tap chips are removed; and the new plugs driven in securely. The '93 didn't stop knocking; I don't think the problem ever was the lifters. I think the problem was piston-slap all along. So I still have my irritated knock sensor, my poor power, and my poor fuel economy. Quote
RobertISaar Posted May 28, 2016 Report Posted May 28, 2016 I'm not sure I even copied 'n' pasted a copy from that link. If I did, I can't find it now. I'd love to have an on-line source for that info. If someone has a scan, I'd host it on my web site. have a preferred filetype/size limit? Schurkey 1 Quote
Schurkey Posted May 31, 2016 Report Posted May 31, 2016 have a preferred filetype/size limit? Sending PM. Quote
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