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08-14-2020, 11:41 AM | #1 |
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Join Date: Jul 2020
Location: Southern Michigan
Posts: 77
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1952 stuck flathead
I bought a 52 F100 flathead complete engine but froze up , I pulled the heads cylinders and pistons look very good , very clean no carbon , I fought the valve removal for two weeks , finally got them out today what a JOB , put a socket on the crankshaft pulley and pop it freed up turns smooth and easy , I kinda assumed it was the valve train that was hanging everything up , now my question , should I go ahead a pull the oil pan and check everything , or just work on the top end with new valves , seats , springs ect .and go for it ? , motor still had clean oil in the original air cleaner and oil filter , crankcase oil looked good also , no signs of moister or anything , motor had been setting for 25 years , what do you think ?
Vern |
08-14-2020, 11:51 AM | #2 | |
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Join Date: May 2010
Location: Long Island, NY
Posts: 1,052
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Re: 1952 stuck flathead
Quote:
Thanks, Gary in N.Y. P.S. I would also put in some bronze-lined guides, they'll last forever and eliminate any chance of "hanging" a valve over time, been there, done it!
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08-14-2020, 12:44 PM | #3 |
Senior Member
Join Date: Mar 2014
Location: Jacksonville FL
Posts: 3,946
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Re: 1952 stuck flathead
Some plastic gauge, rotate the motor and about 2 hours of your time is "Cheap" insurance both in not only the piece of mind of "knowing" BUT also making "SURE" everything is jam up and jelly tight!!!!
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08-14-2020, 02:41 PM | #4 |
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Join Date: May 2010
Location: upstate SC
Posts: 2,963
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Re: 1952 stuck flathead
It has been my experience that the valve train is most likely the problem with a stuck flathead, cast iron valve guides and steel valves. oil drains out of the valve guides and rust sticks the valves to the guides. I would at the least pull the pan and check the connecting rods for wear with plastigauge . clean the oil pan/screen if they check ok and go for it!
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08-14-2020, 02:42 PM | #5 |
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Join Date: Jan 2011
Location: sw minnesota
Posts: 4,568
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Re: 1952 stuck flathead
the clean looking oil is an illusion. after a long time the dirt settles to the bottom of the pan, and the oil looks new again
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08-14-2020, 06:07 PM | #6 |
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Join Date: Jul 2016
Location: Lake worth Florida
Posts: 1,088
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Re: 1952 stuck flathead
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08-14-2020, 06:44 PM | #7 |
Member
Join Date: Jul 2020
Location: Southern Michigan
Posts: 77
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Re: 1952 stuck flathead
Sounds like good advise from all , think at the very least I'll pull the pan and check the oil pickup screen and just have a look .
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08-14-2020, 10:12 PM | #8 |
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Join Date: Jan 2014
Location: Orcas Island Washington
Posts: 4,916
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Re: 1952 stuck flathead
Plastigauge is a great invention. Rods and mains for sure. For the most part the engines I have checked were in excellent shape. It's a great feeling seeing that wide stripe when you remove the cap!
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson) |
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