Bud---The oil gallery plugs come "on a stick" of five or so. I got mine
(I think) from Moss Motors
about 15 years ago. My original also became loose after an chemical
bath.
An easy way to screw the replacements, (should you find some) into the
block is to first cut off a piece from the stick (they''re premarked)
and then use a hacksaw blade to then cut a slot into one end, so a
screwdriver can be used to run the plug into the threads in the block.
I was never happy with these aluminum plugs, and no matter the sealer
used it would always leak, as there is full oil presure at this plug.
Success came when I used a common hex head bolt. The bolt is a hexhead
with 16TPI and 3/4" diameter. These bolts are typically too long, so I
cut it off so only a half inch of threads was left. This leaves about
3/4 inch of unthreaded shank, which is good. This way the threads have
something to tighten up against, when running into the shank...and the
bolt head doesn't contact the lip on the block.
Another lister said he used an Allenhead socket screw, but don't know
how this was able to tighten. Maybe a special epoxy?
Dick
Bud wrote:
On the TR6 engine is a plug just above the oil filter listed as NA from
Moss and not listed at all, as far as I could tell at TRF. VB lists it
as a 3/4 inch oil gallery plug. My problem is that the machine shop used
an engine cleaner that dissolves aluminum. The plug is missing, so is
(was) it aluminum? The hole is threaded, but on a running TR6 engine I
looked at, the plug looks like a press fit. I'm pretty sure it isn't a
freeze plug but I can't find a thread to fit it. I am going to order a
couple of them from VB. What should I expect when it gets here and how
is it installed?
Thanks in advance,
Bud Trussell
|