Ghettodeffender Posted January 19, 2013 Share Posted January 19, 2013 So today i got my valves adjusted after driving on my new engine for about 100 miles, at first it was purring like a kitten, but by the end of my 15 minute drive home from the mechanic the valves started clacking again. Is it possible my valves arent completely seated and wlil require further adjustment? What are your thoughts on this ? Quote Link to comment Share on other sites More sharing options...
Ghettodeffender Posted January 19, 2013 Author Share Posted January 19, 2013 I just had an epiphany, so im thinking the shop didnt adjust it when it was completelly hot, so as the engine got hottor on the way home, the valves went out of adjustment. Im gunna ask the shop tommorrow and see. Ill post updates. Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 19, 2013 Share Posted January 19, 2013 Check the specs in the FSM. The lash gets looser when the engine gets warm. If it's quiet in the morning, when cold, you'll have a pretty good idea. Quote Link to comment Share on other sites More sharing options...
beermanpete Posted January 20, 2013 Share Posted January 20, 2013 Perhaps one of the lock nuts came loose and allowed the adjustment to change. Quote Link to comment Share on other sites More sharing options...
wickedminded Posted February 11, 2013 Share Posted February 11, 2013 My valves are clacking too but I adjusted em cold by the FSM but I'm not familiar with this engine is it somewhat normal to hear small clacking? Quote Link to comment Share on other sites More sharing options...
siteunseen Posted February 11, 2013 Share Posted February 11, 2013 I adjusted mine with the lobes pointing straight up, the first few times. Then realized if I aligned them straight up with the cam towers they were much quieter. Quote Link to comment Share on other sites More sharing options...
Tony D Posted February 12, 2013 Share Posted February 12, 2013 (edited) The valvetrain makes noise. PERIOD. If it's quiet, YOU HAVE A PROBLEM! They are noiser cold than once warmed up. Purpose of adjustment is to ADD clearances that close up as valves pound into the head. After an adjustment unless something was way wrong, you will ALWAYS be noisier than before the adjustment. Check them again to be sure,but don't delude yourself into thinking a valve adjustment QUIETS a properly running engine. It does just the opposite. Quiet Valves are valves without enough seat time on the head, that run hot, and burn prematurely. Run an Air Cooled VW and this dynamic gets into your being and soul. It's no different for an L-Engine. Valves need to be on the seat to cool down. You make them 'quiet' and you remove lash---this increases time open, and decreases seat-time to cool. You alter the valve event timing considerably due to the ramps on the cam. As little as 0.002" maladjustment can mean significant changes in valve timing events. You don't have to believe me, get a cam degree wheel, and do it. See for yourself! Edited February 12, 2013 by Tony D Quote Link to comment Share on other sites More sharing options...
Xnke Posted February 12, 2013 Share Posted February 12, 2013 ...And in some cases that 0.002" can be utilized to make that big frumpy cam behave better on date night... Quote Link to comment Share on other sites More sharing options...
Ghettodeffender Posted February 13, 2013 Author Share Posted February 13, 2013 So the problem is solved, after the shop in my town adjusted the valves twice and still the loud noise persisted, i decided these mechanics were crap or there was something very wrong going on in my engine. So i took the car to Mikes Z Shop in whittier and had them look at it, and it turned out that the valves just weren't adjusted properly so they readjusted them. Quote Link to comment Share on other sites More sharing options...
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