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Re: '38 1608 V12 Project
#41
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R H
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Bill

The area where the works. Is thin.. That's why the epoxy.

I'll try to get a picture.


If you look a 6 o clock. Enlarge and you can see crack

Picture 2.

That chunk. I think we beefed it up.

Have to look.

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Posted on: 2020/4/1 22:14
Riki
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Re: '38 1608 V12 Project
#42
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R H
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After cleaned up

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Posted on: 2020/4/1 22:32
Riki
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Re: '38 1608 V12 Project
#43
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R H
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These pits will get epoxy.

Bottom and side.

It's thin.

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Posted on: 2020/4/2 3:38
Riki
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Re: '38 1608 V12 Project
#44
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blue40devil
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After a year plus soaking the one stuck piston from both the top and bottom and utilizing every penetrant known to man, heat and cold, I decided it was time for drastic measures.

I drilled 4 , 1/4" holes 12, 3, 6 and 9 O'clock very close to the outer rim of the piston. I was able to drill down into the ring grooves. I filled the holes with Kroil, heated the piston until it boiled the Kroil. This allowed the Kroil to get to the rings. I repeated this cycle several times and with a big drift and a hammer, I was finally able to drive it out.

Amazingly there is no damage to the bore and no rust.

Now on to the cam.

Posted on: 2020/4/5 15:13
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Re: '38 1608 V12 Project
#45
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blue40devil
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Riki,

Thanks for the timing cover photos. Nice work.

I got the MIG running yesterday so while I am social distancing, I will give it a try.

Bill

Posted on: 2020/4/5 15:16
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Re: '38 1608 V12 Project
#46
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blue40devil
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Here is the finally conquered piston. Pencil indicated hole drilled to rings.

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Posted on: 2020/4/6 10:41
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Re: '38 1608 V12 Project
#47
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flackmaster
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"....conquered..."
I'd bet that piston will be hanging on the garage wall of fame for a long time.

Posted on: 2020/4/6 10:50
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Re: '38 1608 V12 Project
#48
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blue40devil
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Might hang it after the autopsy.

Posted on: 2020/4/6 12:54
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Re: '38 1608 V12 Project
#49
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blue40devil
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Just got word that the one main bearing which had a divot out of it is done and will be shipping Monday. I was able to get all of the head studs out and I am taking the engine to a shop owned by a co worker's brother to be cleaned and fluxed. He has a Rottler boring machine should I need it.

Only major issue at the moment is the repair of the front water pump housing. Have started MIG/TIG repairs.

Posted on: 2020/5/29 21:54
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Re: '38 1608 V12 Project
#50
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Tim Cole
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It might have been easier to take a hole saw to piston top and saw four slots toward the bore then break the thing into pieces.

Posted on: 2020/5/30 11:30
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