99 vette/VR4/Talon/jigster 750
This is a discussion on 99 vette/VR4/Talon/jigster 750 within the Kill Stories forums, part of the Racing Forums category; Originally Posted by Wesman I'd consider improperly seated thrust bearings causing crank walk and engine failure something "mechanically wrong" with ...
12-29-2009, 10:41 PM #41
- Join Date
- Dec 2008
But yes, the early 7 bolt motors were all a ticking time bomb if not fixed. Most of these guys, usually went with an older 6 bolt if they decided to do an engine replacement.
12-30-2009, 01:37 PM #42
12-30-2009, 05:26 PM #43
You consider improperly seated thrust bearings mechanical,but don't consider pistons flopping around in bores to be.If nothing else you are always predictable.
12-30-2009, 07:31 PM #44
01-01-2010, 02:57 PM #45
The earlier LS engines were designed to allow the pistons to expand and contract in their bores a certain amount due to the different expansion rates of the cylinder liner metal and the hypereutectic pistons. So when the engine was cold, the piston to cylinder wall clearance was larger, making it audible. When the engine warmed up, the clearances became tigher, and the noise went away. It was in no was detrimental to performance or reliability. The pistons were in no way just "flopping around in their bores"
The 4G63 has inherent design flaws that caused them to blow up. Piston slap was a noise complaint, not a performance complaint.
01-01-2010, 03:27 PM #46
Wesman I've probably forgotten more about engines then you'll ever know.It's kinda funny there is a thread on the j body forums where you said you liked DSMs.What happened wes you get smoked one to many times by one.I won't comment any more because like all the threads involving you it will it will get closed.PS don't change wesman we love you just the way you are.
01-01-2010, 04:10 PM #47
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