Plastigage accuracy???
Thread Starter
Racer
Joined: Apr 2013
Posts: 253
Likes: 3
Plastigage accuracy???
Fought with clearances most of the day with our LS1. I've been trying to use plastigage, but my clearances all seem to come up too tight. My mains were coming up with .oo1-.0015", and the same on the rods. Stock 2001 block that only had 40,000 on it. stock polished crank, standard King bearings on rods and crank (CR 807HPN- MB5013XP). Eagle h-beam rods. I'm a little lost as to how any of this could be too tight. Questioning the accuracy of Plastgage.
Frank
Frank
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 594
From: Prescott, Arizona
Befor going very much further, get a new/ different package of plastigage and check again.
I am unaware of any issues regarding plastigage accuracy.
The outside micrometer and bore gage can confirm clearances, but take some practice to use with precision.
It takes a minimum amount of clearance to allow enough oil to flow through the bearing to cool the bearing.
I am unaware of any issues regarding plastigage accuracy.
The outside micrometer and bore gage can confirm clearances, but take some practice to use with precision.
It takes a minimum amount of clearance to allow enough oil to flow through the bearing to cool the bearing.
