SBC 400

[Carl Summers]

Hi,
   King Engine Bearings have oversize thrusts available and I think Federal
Mogul and clevite do as well....but you need to have the thrust check be a
crank machinist as when it is worn it is not usually flat...hth's
-Carl Summers



-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
Behalf Of nacelp
Sent: Wednesday, April 19, 2000 9:12 AM
To: diy_efi at diy-efi.org
Subject: Re: SBC 400



Sorry to take so long, but wanted to get it right,
.005-.007" of an inch.
I didn't research if there are selectable bearings to do this (just do too
many different ones to even try and remember).
I lean toward mins. for engine assembly.
Grumpy

> Yes 0.020" end play (moving crank forwards and backwards when mounted in
> bearings), according to the machine shop they reckon it was OK as there is
an
> auto tranny going behind it, but I'm a bit sceptical about it.  Someone
has a
> vague memory that there are bearings with oversize shoulders available
which you
> get machined down to the correct shoulder size to remove the end play, any
> verification on this ?
>
> Dan  dzorde at erggroup.com
>
> <Date: Tue, 18 Apr 2000 21:55:06 -0400
> <From: Shannen Durphey <shannen at grolen.com>
> <Subject: Re: SBC 400
> <
> <20 thousandths, as in .020"??  Stock specs are around .005" max, so
> <you've got a hell of a knocker there!  I've had one sb Chebbie with
> <excessive crank end play, sounded like a rod bearing going out.  Loud
> <enough to scare small kids when under load.  Luckily, the rear bearing
> <(which is also the thrust surface) was the worn part, not the crank.
> <So new bearings solved the problem.  Don't know what to recommend if
> <it's not the bearing, except be prepared to r&r the crank...
> <Shannen
> <
> <
> <Date: Tue, 18 Apr 2000 22:22:00 -0400
> <From: "nacelp" <nacelp at bright.net>
> <Subject: Re: SBC 400
> <
> <End Float?,  end play?.  front to aft clearance as a functionof the
thrust
> <bearing?
> <Grumpy
>
>
>
>

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