Re: [AMC-list] Nash 234.8 OHV six
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Re: [AMC-list] Nash 234.8 OHV six



On Wed, Mar 17, 2010 at 13:18, Joe Fulton <piper_pa20@xxxxxxxxxxx> wrote:

>
> The oil pan fastening system on the 195.6 is much more complex than the
> later sixes.  In fact I find it how to understand how one of these old
> engines could be built quickly on an assembly line. The damper is archaic
> too with that gasketed center piece.
>
>
Yeah, it is odd, isn't it? Three intricate little pieces! And what a strange
place to have an oil leak from, out the crank nose bolt.

I reused the star stamping, but bought new rubber and cork from Galvin's.
And for good measure, added a thin bead of Right Stuff.

The oil pan, remarkably sat right as an assembly without a gasket. As Joe
and Dave know, the oil pan bolts to the block in the usual way, but also to
the vertical face of the timing chain enclosure.

I threw away all the oil pan bolts, and replaced them with studs,
blue-loctited in. I assembled it with Right Stuff, and used serrated nuts.
IT. WILL. NOT. LEAK. I was worried about the pan then hitting the oil pickup
but it's got 3/8" clearance, ensured with a 1/2" wide block of teflon I
wired onto the pickup. The "plastic clip that everyone loses" was pre-lost
on mine, so the right bonk on the oil pan would have sealed off the oil
supply. Nice.

I think I said, the engine leaked a lot of oil out the back, which I had
assumed was the rear seal, but turned out to have been a seeping rear cam
plug. There's a new one in there now of course, but when I put the rear shim
plate on (whatever you call that thing) I am going to Right Stuff the
block-to-plate area around that plug. Belt and suspenders. IT. WILL. NOT.
LEAK.
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