I am in the process of building a TR3/4 engine now, also. My machinist put
the block in his parts washer which basically uses a strong soap and water.
This did not attack the aluminum plugs, but I drilled the oil galleys out
anyway to clean the passages better. I found the oil galleys to have a 3/4
in. X 16 thread. Not the most common thread, but it is the same as an AN-08
thread. I was able to get an allen head plug from a local hydraulics
equipment supplier.
----- Original Message -----
From: Matthew Wilder <mwilder@top.monad.net>
To: <FOT@autox.team.net>
Sent: Tuesday, January 18, 2000 11:18 AM
Subject: Cleaning motor blocks
> Hi,
> So in between welding in rust holes and letting fiberglass dry I've
> gotten the motor on my TR4a stripped down to the block. The motor shop
> wants the bearings and any plugs out which I was planning on doing
> anyways before boiling out the block, but there's a plug in the front of
> the block where the oil gally hole was drilled through. Will boiling out
> the block hurt this? Can I also have the head or the crank done?
>
> Thanks,
>
> Matt Wilder
> '67 TR4a E-prepared Solo 2
>
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