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Re: '38 1608 V12 Project
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2012/4/10 19:35
From San Diego, CA USA
Posts: 1531
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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jpg  20180822_150319.jpg (476.73 KB)
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jpg  20180822_150203.jpg (455.58 KB)
4498_5e855acf07623.jpg 2048X1152 px

Posted on: 4/1 20:14:21
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Riki
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Re: '38 1608 V12 Project
Home away from home
Joined:
2012/4/10 19:35
From San Diego, CA USA
Posts: 1531
After cleaned up

Attach file:



jpg  20190119_143950.jpg (479.82 KB)
4498_5e855c8bcfd5e.jpg 2048X1152 px

jpg  20190119_143858.jpg (407.70 KB)
4498_5e855cbccf471.jpg 2048X1152 px

Posted on: 4/1 20:32:20
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Riki
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Re: '38 1608 V12 Project
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2012/4/10 19:35
From San Diego, CA USA
Posts: 1531
These pits will get epoxy.

Bottom and side.

It's thin.

Attach file:



jpg  20190119_143932(1).jpg (469.64 KB)
4498_5e85a47f0eaaf.jpg 2048X1152 px

Posted on: 4/2 1:38:52
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Riki
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Re: '38 1608 V12 Project
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2018/8/18 3:35
From Berkeley Lake, GA, USA
Posts: 110
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: 4/5 13:13:59
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Re: '38 1608 V12 Project
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2018/8/18 3:35
From Berkeley Lake, GA, USA
Posts: 110
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: 4/5 13:16:16
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Re: '38 1608 V12 Project
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2018/8/18 3:35
From Berkeley Lake, GA, USA
Posts: 110
Here is the finally conquered piston. Pencil indicated hole drilled to rings.

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jpg  Packard piston.jpg (301.44 KB)
181435_5e8b4d87bb651.jpg 2048X1536 px

Posted on: 4/6 8:41:59
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Re: '38 1608 V12 Project
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Joined:
2007/12/12 21:29
From Dallas, TX
Posts: 1681
"....conquered..."
I'd bet that piston will be hanging on the garage wall of fame for a long time.

Posted on: 4/6 8:50:11
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Re: '38 1608 V12 Project
Home away from home
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2018/8/18 3:35
From Berkeley Lake, GA, USA
Posts: 110
Might hang it after the autopsy.

Posted on: 4/6 10:54:37
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Re: '38 1608 V12 Project
Home away from home
Joined:
2018/8/18 3:35
From Berkeley Lake, GA, USA
Posts: 110
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: 5/29 19:54:58
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Re: '38 1608 V12 Project
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2007/10/28 7:49
Posts: 2345
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: 5/30 9:30:08
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