Valvetrain noise
04-05-2007, 12:39 PM
#11
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IMO. Its just the 918s. Sport Side moved to Patriot golds (if im not mistaken) and that did the trick. Take it from me, i spent a **** ton of money trying to fix it and to no avail. I have a totally different motor, heads, and lifters and im here to tell you that its just the springs. I still have the shik sound to this day. Next springs i get will be patriots though.
04-05-2007, 03:43 PM
#14
Manley valve srpings are the quietest ones I have ever heard. I put them on randomhero's truck and the valvetrain noise is STOCK, patriots are decently quieter then the 918s, 915s are a little quieter then the 918s, the damn 918s are just flat out loud. I dont understand why either, the springs on my old DART heads were pretty damn quiet too and they were a stiffer beehive spring. When you pull that valve covers get a tq wrench and set it to 22ft-lbs if any of the bolts holding any o the rockers down comes loose before it clicks then you found the problem. A rocker not properly tq'ed wont preload the lifter enough causing the lifter to bouncing off the lobe or cause the internal spring of the lifter to compress a decompress more then it should. If a spring isnt broken its damn hard to tell if its cracked. Just get you a set of edelbrock 5.3 heads from WCCH with dual extremes on there, with some new lifters and call it good
04-05-2007, 04:55 PM
#15
Originally Posted by FarmerBeau
IMO. Its just the 918s. Sport Side moved to Patriot golds (if im not mistaken) and that did the trick. Take it from me, i spent a **** ton of money trying to fix it and to no avail. I have a totally different motor, heads, and lifters and im here to tell you that its just the springs. I still have the shik sound to this day. Next springs i get will be patriots though.
Rick didn't think it warranted any concern, that it was 'normal' and not to worry. I'm not as certain but what do I know?
The sound is louder when I first start the engine (warm) and quiets down as oil starts to circulate which makes me think lifter but I'm not too worried, more like irritated by the noise. I think i'll still pull the covers and check the rockers as soon as I can.
04-05-2007, 05:20 PM
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When we started mine up for the first time 2 days ago, it was doing the SAME thing. I thought it was a header leak also, so I checked em, they were fine. Then started it back up, and let it idle for a sec, and the noise got quieter. I had a buddy come over that did the head work, and put them together, and he said it was just the 918's. I asked him why was it louder on the back drivers side, and he said I need to stop worrying! I too am **** about noises!
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