> I've isolated the leak as coming from underneath where cyl. 3&4 intake meets
> up with the head. As this is the same spot as was the leak several weeks
> ago, I thought I had solved it by replacing manifold gaskets on all
> cylinders. This 'fix' lasted for a short duration only and now once again
> there is no suction coming out of the rear SU.
Paul, are you sure you are installing the longer bridge pieces between the two
manifolds, and turning them so they bear on both manifolds ? They're a bit hard
to see, but of course it's very important that they be installed properly.
> I had an idea about a more perminant fix. To put two gaskets on 3&4. Does
> this sound ok to anyone?
Not unless you also double-gasket 1&2. The manifolds are rigid and supposedly
flat, likewise the head surface is rigid and supposedly flat. If the rear stack
of gaskets is taller than the front stack, the surfaces will no longer be
parallel. You'll increase both the chances of a leak, and of breaking the
exhaust manifold.
> Also, I am thinking about adding some 'hi-temp
> RTV' to something?
IMO, no. It won't handle exhaust heat and makes a mess besides. If everything
is right, the TRactor motor will seal easily. If not, then RTV isn't likely to
help, IMO.
> I am putting a glasspack exhaust pipe on with two glasspacks on it. I don't
> want it much louder. Is one louder than two?????????
Depends on the particular glasspacks in question. The stock exhaust on very
early TRs was a single glasspack, but the factory later switched to two of them
to moderate the exhaust note somewhat.
Randall
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