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09-01-2012, 03:03 PM | #21 |
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Re: Opinions please
Thats a nice looking sedan you have there, seems to be a solid body on it .
It looks like the next cylinder has a sleeve in it as well . So maybe it has been sleeved to standard thats why there are no oversize markings. Thats a plus IMO John Cochran |
09-01-2012, 03:10 PM | #22 |
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Re: Opinions please
I may be mistaken, but when you had the engine hot tanked didn't that boil out the babbitt? So are you going to rebabbitt the journals or go for inserted bearings?
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09-01-2012, 03:23 PM | #23 |
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Re: Opinions please
I encourage you not to replace that radiator shell. Good originals like that are hard to find, and the repros take some fiddling to get 'em right, especially for a '29.
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09-01-2012, 03:25 PM | #24 |
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Re: Opinions please
Yes. I will have new babbits. The ones in the engine were cracked and needed to be redone anyway.
There are sleeves on all 4 cylinders. They appear to be 1/8 sleeves. I have no markings on the 3 of the 4 pistons I have cleaned. He told me the sleeves looked ok, but a small ledge was on one so we might go with .20 over. If that is the case, I will get all new pistons that are +20. The body has some issues. No rust, but it was in a rear end collision that was poorly repaired. Last edited by Hedbanger; 09-01-2012 at 03:40 PM. |
09-01-2012, 03:27 PM | #25 | |
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Re: Opinions please
Quote:
My car was assembled at a time when it could be either or chrome or nickle plated. |
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09-01-2012, 10:47 PM | #26 |
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Re: Opinions please
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09-01-2012, 11:57 PM | #27 | |
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Re: Opinions please
Quote:
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09-02-2012, 12:04 AM | #28 |
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Re: Opinions please
Looking at the thickness of the sleeve and the distance between the cylinders my guess is standard bore.
Richard Anaheim CA |
09-02-2012, 01:14 AM | #29 |
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Re: Opinions please
So far I have not found a marking of the size on the pistons. I guess that could mean it is standard. The guy helping me said we will get new seats and go to .20 over on the cylinders. So I will get those next week. I am just glad I do not have to find a new block. Now I will have it shot peened and painted.
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09-02-2012, 10:39 AM | #30 |
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Re: Opinions please
don't assume the head is flat. After so long, with signs of over heating ( repaired cracks) and water leakage ( the pitting), odds are it is not. Proper determination is done with a machinists straight edge and a feeler gauge. It does not take more than a few thousandths warp to cause a leak of combustion gases or water. If the gases leak into the water jacket, you will have overheating issues. I prefer to at least skim an old head before installing with a new gasket. As long as you will have the block torn down, a decking would be a good idea too. Both surfaces should be finished with a good roughness average, that is, not be smooth, to grip the gasket. If there is not enough clearance between the piston top and the head from frequent re surfacing, the fly cut can be made deeper, but stock Model A heads have plenty of clearance and are inexpensive.
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09-02-2012, 10:41 AM | #31 | |
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Re: Opinions please
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09-02-2012, 12:28 PM | #32 |
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Re: Opinions please
Do yourself a favor and have new valve seats installed, bore the cylinders to the next oversize and have your machinist hone each piston to fit, and deck the block and surface the head (or buy a new H/C head from Snyders) and then have the babbit poured for the mains. In other words, a complete short block rebuild....money well spent if you plan to restore the entire car.
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09-02-2012, 12:39 PM | #33 |
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Re: Opinions please
Good advice too. That is the plan.
As of right now, it looks to be standard pistons. The whole thing (and head) will be shot peened to clear out the water passages and other build up. Then paint. Re bore to +.20. I am buying all new seats, pistons, rings, rods, valves, springs, keepers, guides and new babbits. I will have a new crankshaft and camshaft. Deck the head and block if needed. It will be a brand new engine even though it was first built Oct. 17, 1929. |
09-03-2012, 12:45 AM | #34 | |
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Re: Opinions please
Quote:
good decision. Its easy to spend the same amount band aiding an engine together, but far more rewarding to rebuild it properly. If you are willing to spend the money, Bill Stipe's cams will make a huge difference in performance, especially if in conjunction with a mildly high compression head. The engine in my sedan was rebuilt with balanced crank, Police head, larger intake valves and a re ground cam by a noted cam grinder, but when I replaced that cam with Stipes 330, the power curve really improved. It was well worth the cost. |
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