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Re: Re: Lost engine

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ChadS

07-04-2003 09:47:10




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I am thinking about having the block welded some how and redeck the top. I think I am going to build a thicker copper head gasket to back off the compression. I think the high cyl pressure lifted the head and put too much strain on the block. It is a 1952 H engine, have heard of 350 blocks being a little stronger, I have a 350 block with aftermarket sleeves bored to 4, it looks a lot better than the 4.125 bore, The block I have is "block filled up to the bottom of the water plate on the carb side of engine, should I fill it all the way to the top and run water in the head only?

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TimC

07-04-2003 10:19:26




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 Re: Re: Re: Lost engine in reply to ChadS, 07-04-2003 09:47:10  
You can put studs in the block to keep it still but you still need something to keep the block from splitting down the middle. The brass will tend to make the sleeves and block one unit and keep everything together. Unless you plan to lug it down to low rpms 300 psi should be ok. If you know someone with a boring bar you can have them cut a receiver groove in the block then take 35 thousandts (spelling) 70 psi wire from a wire welder and install your own O-rings. Use super glue to keep them in place while you start them in the groove. I believe you should have about 5 thousandts sticking above the deck afterwards but i can't remember for sure. If you fill the block you have to let it cool between pulls with and electric water pump and fan. Pulling back to back is not good for it and piston to wall clearance and ring end gap have to be right. I would be sure to run one of the extreame pressure anti-friction metal treatments in my oil. Forget what the Wise acres say about snake oil. One of the best pullers in 4000 div 5 uses it and bought it from another div 5 leader in 5000 lb.

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ChadS

07-04-2003 11:57:11




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 Re: Re: Re: Re: Lost engine in reply to TimC, 07-04-2003 10:19:26  
Thank you for some very good advice, I am going to use your suggestion about Brazing the sleeves to the block, and the rest of the damaged areas. I probably cannot mill the deck much just enough to make it true. I usually use coppercoat on the copper head gasket, the las time I used Edlebrock gaskacinch. I would not recommend that stuff for any thing head gasket related, maybe for stock gaskets, what do you think?

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TimC

07-04-2003 18:28:37




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 Re: Re: Re: Re: Re: Lost engine in reply to ChadS, 07-04-2003 11:57:11  
Some well known builders use the red high temp silicon. The copper high temp silicon would work also but i would rather use the copper spray. Once you have a good seal around the sleeves you shouldn't have to worry about water. I like the looks of the K1000 gaskets from lubbock gasket also. Let the spray dry about 20 to 30 minutes and get good and tacky and not wet anymore. Fresh head bolts wouldn't hurt anything if you can't find studs.

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ChadS

07-04-2003 18:48:03




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 Re: Re: Re: Re: Re: Re: Lost engine in reply to TimC, 07-04-2003 18:28:37  
I can build the copper gasket, If I oring the block, what has to be done to the gasket? Does it have to be cut for the ring? or should I try just the gasket and sealer method first?



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TimC

07-05-2003 09:59:00




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 Re: Re: Re: Re: Re: Re: Re: Lost engine in reply to ChadS, 07-04-2003 18:48:03  
Personally, i would try the gasket first. Nothing would have to be done to the copper gasket for the O-Ring method but the interferance is critical. I believe that the O-Ring is supposed to be no more than .005 to .007 above the deck but i am sure that there are other opinions on this. With heavy studs you could probably run a little more interferance.



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ChadS

07-05-2003 13:15:59




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 Re: Re: Re: Re: Re: Re: Re: Re: Lost engine in reply to TimC, 07-05-2003 09:59:00  
I wanted to thank you for sharing you ideas with me! I really thought I would have a new boat anchor, but you have given me hope. What kind of tractor do you pull? I hope I will get Something Wilder going again soon, When I do, I am going to put a sign on the tractor that says "Thanks TimC" and thank you here at YT! Like I said, thanks again!



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