Re: 1950 packard 288 engine just rebuilt now has water in the oil
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The head gasked would seal the studs.
Posted on: Yesterday 14:42
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Re: 1950 packard 288 engine just rebuilt now has water in the oil
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Not too shy to talk
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I believe what he is talking about are the head studs they do go into the water. Yes you are to use Permatex No. 2 sealer on all of them then torque them. We used this Sealant a lot at Caterpillar on gasket joints like oil pans and front and rear housings . They say it sets up but does not get rock hard. When I got a few head studs from Max Merritt they said to use it as well. I had thought of this but since it had great compression on all 8 cylinders hot and cold I did not think it could get in a cylinder. Thanks for checking on Facebook.
Posted on: Yesterday 15:30
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Re: 1950 packard 288 engine just rebuilt now has water in the oil
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Home away from home
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Quote:
And as Don mentioned the gasket should seal around the studs. If there were a leak you would see it at a head nut. I had one that was a little leaky until I had retorqued the head a couple of times. I don't think these would be the source of your issue. Hopefully your pressure test will reveal the problem!
Posted on: Yesterday 16:56
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Re: 1950 packard 288 engine just rebuilt now has water in the oil
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Some of the head studs go directly into the water jacket. When we rebuilt my dad's '38 Super engine we used sealant on all those.
We had to rebuild the engine twice because the first donor block we used (the original cracked) apparently had too much corrosion inside the water jacket that we were not aware of. When the machine shop bored the cylinders it ended up creating a weak spot in the cylinder wall. It was not visible or detectable. Upon first start up we found that one of the cylinders was not firing, and we found water when we took out the spark plug. Apparently the pressure from the piston blew out the weak spot in the wall and water quickly followed. Upon disassembly we found another spot under one of the valve seats that was thin enough to force water through. Bottom line was the block was trash and we had to source a new donor block. I saw that you bored your cylinders so that's what came to my mind. But with your pressure testing I would think that a leak like we had would have shown up when you tested. Maybe a pinhole leak or crack in the valley under the valve seats? I would think that magnafluxing would show the problem areas. Sorry I can't be more help. -Kevin
Posted on: Yesterday 17:57
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Re: 1950 packard 288 engine just rebuilt now has water in the oil
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Don't think anyone mentioned it yet. If you are using acorn nuts, you must be sure that none of them are bottoming out.
Posted on: Yesterday 18:17
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Re: 1950 packard 288 engine just rebuilt now has water in the oil
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Home away from home
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Even if it were leaking around a stud, the only place coolant could come out is from under the nut which seems very unlikely. The head gasket seals it around where the stud goes into the block and also these should all be quite tight with rolled threads which I believe (but not entirely sure) began before 1950. Maybe someone ran a tap into all the holes in the block.
My own opinion, of course, but I don't think that the acorn nuts are at all attractive. Good point about them possibly bottoming out, though.
Posted on: Today 1:08
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