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Old 07-15-2010, 11:37 AM
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Stuck Flat Head

Hello all after lurking your site I will make my first post.
I have found my first official Barn Find. It is a 1951 Ford pickup, the farmer is the original owner and when the brakes went out he parked it in the barn 40 years ago until I came along and purchased it. Now the work starts the mice moved in and made a big mess, after a few days and alot of stink that is fixed. The rust is a minimal but the motor is stuck. The flat head V8 came out of a 1951 Victorian car with a 4 speed on the floor. Spark plugs are removed and PB Blaster is in the holes for 4 days. Tried to drag down the gravel road with no luck popping the clutch. Any ideas will be greatly appreciated in unsticking this motor short of tearing down. Pictures to come.
Thanks
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Old 07-15-2010, 12:29 PM
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turn the harmonic balancer bolt, if there is one, with a long breaker bar. but be careful not to strip the threads in the crank snout.
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Old 07-15-2010, 12:46 PM
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Sorry pard but after 40 yrs. me thinks its time to tear it down and rebuild it. I'm sure the cylinders are pretty rusty and the rings are "welded" to the bores.

I don't think a '51 flatty had either a harm. balancer or a crank bolt...dunno...and if it did I wouldn't try to break it loose with a breaker bar....hence the name. Let the PB blaster soak in for a week with liberal additions of same, then yank it out and go through it
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Old 07-15-2010, 01:59 PM
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If you have any appreciable amount of liquid in the cylinder/combustion chamber, you will likely break pistons, rods, crank if the motor breaks loose while you're towing it down the road, even with the spark plugs out.

Bite the bullet and begin disassembly.
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Old 07-15-2010, 03:01 PM
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This is my first flat head. I am debating rebuilding. I have heard it is a costly endeavor. I was just trying to get the truck running so I could take the 85 year old farmer for a ride before I tear it apart.
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Old 07-15-2010, 03:05 PM
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I take it the clutch is working properly? I wouldn't take the chance of forcing the engine to turn over, if bumping it while slowly pulling it doesn't work, tear it down, flatties are expensive enuff to rebuild without mucking up the crank, cylinder walls, pistons, etc. I have some pics at home of a flattie a friend built, 300 horse, serpentine belt system, electronic ignition, Holley 4bbl. It's in a 50 Ford P.U....I'll get some pics up soon, my car is also almost done and I need to update my journal.
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Old 07-15-2010, 03:48 PM
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Quote:
Originally Posted by 41FordTudor
This is my first flat head. I am debating rebuilding. I have heard it is a costly endeavor. I was just trying to get the truck running so I could take the 85 year old farmer for a ride before I tear it apart.
If it is so seized that towing it in gear won't turn it over, there is NO doubt that you will be rebuilding it- that is, if you want it to actually run.

Somewhere along the line you're going to need a repair manual on it. That would be a place to start.

Welcome, good luck, and show some photos when you get a chance.
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Old 07-15-2010, 04:25 PM
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You should at least pull the heads to see what the cylinders look like. If there is a lot of rust it will need to be rebuilt. There could be there issues. Crank or cam could be frozen. Transmission could be locked up etc.
Pull the heads and take a look
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Old 07-15-2010, 04:43 PM
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Great project.....Looks like a little bit of dust on those windows........My truck had the signal lights on top of the fenders like that when I brought it home.....wonder if it was an option....or just a fad?
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Old 07-15-2010, 05:57 PM
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signal lights weren't originally offered in trucks back then. likely an aftermarket add-on
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Old 07-15-2010, 07:06 PM
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Quote:
Originally Posted by va4cqd
signal lights weren't originally offered in trucks back then. likely an aftermarket add-on
There are signal lights in the grill below the headlights
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Old 07-15-2010, 07:37 PM
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Quote:
Originally Posted by poncho62
There are signal lights in the grill below the headlights
likely park lights
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Old 07-16-2010, 10:31 AM
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Thanks all for the information. As you probably know I was looking for don't worry use this magic formula and drive it like its 1951. Well this weekend the heads come off if the bolts will let me. My wife likes the truck so I will fix it for her. Seat, gas tank, rubber mat, wood bed all out and surprisingly the rust is minor mostly on front fenders. Thanks again for the posts and the great information.
Later
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Old 07-16-2010, 10:47 AM
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Factory manuals.....
http://www.faxonautoliterature.com/Search.aspx?c=6895
Also, click on tuning manual
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