There were horizontal bolts front and rear on George McHarris's 100-4. It
precluded an engine in rebuild.
Jonas Payne
PBR Consulting Services, LLC
702.882.6711
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of WILLIAM B
LAWRENCE
Sent: Monday, October 2, 2017 11:11 PM
To: Michael Oritt <michael.oritt at gmail.com>; Austin Healey
<healeys at autox.team.net>
Subject: Re: [Healeys] 100 Main Bearing Caps--Removal In Situ
Michael,
Having recently rebuilt my engine I can attest that there are no horizontal
bolts holding the main caps to the engine block. What you may be seeing are
some of the capscrews that hold the engine adapter plate in place. You
should be able to remove the main cap after removing those bolts. They are
accessible under the timing cover. Replacement may be a little delicate as
that is a gasketed joint.
Good luck.
Bill Lawrence
BN1 #554
_____
From: Healeys <healeys-bounces at autox.team.net
Sent: Sunday, October 1, 2017 5:22:51 PM
To: Austin Healey
Subject: [Healeys] 100 Main Bearing Caps--Removal In Situ
Looking at the exploded view of the bottom end of the 100 engine on page
D/224 of the service manual I see that there are two horizontal bolts that
fasten the front main cap into the block that are, I assume, accessible via
the timing cvhanin cover.
I do not see such hole(s) for the rear main cap. Are there any horizontal
bolts going through the rear plate into the rear main cap that would require
the removal of the engine or transmission for access to them?
Judging by the condition of the oil pump gears and end plate I do believe
that a lot of the lost oil pressure will be cured by replacing the pump. I
have not yet removed the front main cap but the center main shell and crank
journal were in pretty good shape with no discoloration, scoring, etc.
I'm certainly willing to replace the rod bearings and mains that I can
access with the engine/transmission in place but do not want to pull it or
the transmission if possible. I know that best practice would be to replace
all mains but if there are such bolts and I choose not to pull the engine or
transmission to access them I am making a big mistake by replacing only the
front and center mains?
Best--Michael Oritt
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