[Healeys] 100 Main Bearing Caps--Removal In Situ

[Michael Oritt]

Jonas--

I'm aware of the bolts for the front main bearing cap and they are
accessible with engine in.  lt is the rear main cap that I am concerned
with and while I will take your word that they existed on the car you
reference even if there were not I have decided against attempting its
removal as the chance of damaging the gasket/seal is great.  I'll replace
the oil pump and rod bearings--the mains will simply have to live a bit
longer!

Best--Michael Oritt

On Tue, Oct 3, 2017 at 11:38 AM, Jonas Payne <jpaynepbr at cox.net> wrote:

> 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 <(702)%20882-6711>
>
>
>
> *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> on behalf of Michael
> Oritt <michael.oritt at gmail.com>
> *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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