The Technical Archives

This page was last updated on $Date: 1999/01/07 01:51:53 $.

Crankshaft End Play

Query

From: John Middlesworth (jape@email.unc.edu)
Date: Wed, 6 Mar 1996 14:23:03 -0500 (EST)

I just installed the bearings and crankshaft in my otherwise bare 3000 block. I also put in new thrust washers with a coat of lubricant on the side that sees the wear. I don't have a dial indicator but maybe I need to find one to borrow. I can't detect any front-to-back crankshaft movement at all, but then, it would only move about the thickness of a sheet of paper anyway. Perhaps the lubricant I smeared on the washer is taking up that tiny amount of movement. Given that I put new parts in, and that there doesn't seem to be any restriction on crank rotation, should I just stop worrying? (the washer would wear down a bit anyway, right?)

Responses

From: Norm Nock (HealeyDoc@aol.com)
Date: Fri, 8 Mar 1996 16:13:50 -0500

You should have between .0025 and .0055 clearance for the crankshaft end float. Youy can check this with a feeler gauge between the thrust washer and the crank. If there is no clearance you will be pulling the engine out again in a very short time. While your engine is down we recommend you install a seal at the back of your engine that will stop oil leaks from the rear of the crank.

From: Don L(Drtrite@aol.com)
Date: Sat, 9 Mar 1996 00:29:48 -0500

For a more accurate measurement of end play, use a dial indicator and magnetic base to hold it in position on the block as you place indicator in contact with crank. Just read the movement on indicator.

I made some rear seal kits that use a split seal from a chev engine on my 65 BJ8. If you want info on it let me know.

Please send comments, additions, and errors for the SOL Healey web pages to Bob Haskell.

[SOL Web ][ Scions of Lucas Home Page ][ SOL British Car Clubs Page ]