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Discussion Topic:
Flathead issues
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tommyleea |
07-19-2016 @ 7:30 PM
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Member
Posts: 79
Joined: Jul 2016
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I recently purchased a 53 Ranch wagon with the flat head V8. I rotated the motor prior to the purchase, to make sure it wasn't locked up. Well, I went to rotate it today, and found out it only rotates so far, and then stops. I can go back and forth until I reach a certain point. I am assuming that some valves are frozen in place. Is there anything I can do prior to tearing into it? Thanks
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CharlieStephens |
07-19-2016 @ 10:42 PM
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Senior
Posts: 888
Joined: Oct 2009
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Did you try rotating it with the plugs out? Maybe you have a cylinder full of water. Charlie Stephens
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tommyleea |
07-20-2016 @ 6:03 AM
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Member
Posts: 79
Joined: Jul 2016
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Yes, the plugs are out. Good tip.
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len47merc |
07-20-2016 @ 6:57 AM
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Senior
Posts: 1165
Joined: Oct 2013
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Please accept this in the supportive spirit intended - have you checked and ensured the transmission is in neutral? Will the car roll 10-15 feet easily? You said you rotated the engine prior to purchasing the car - were these rotations full rotations at that time?
Steve
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tommyleea |
07-20-2016 @ 7:08 AM
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Member
Posts: 79
Joined: Jul 2016
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Yes, the driveshaft is removed. Starter is free from the flywheel. And, unfortunately, I didn't rotate the engine a complete revolution initially. I just wanted to make sure it wasn't locked up. My bad. I also removed the fuel pump just for the heck of it. I will take on all advice.
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deluxe40 |
07-20-2016 @ 9:03 AM
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Posts: 413
Joined: Oct 2009
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Might be a valve stuck in the closed position. Everything is good until the cam lobe comes around to open it. Maybe take the intake manifold off and give the valve train a bath in ATF mixed with Acetone.
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tommyleea |
07-20-2016 @ 9:11 AM
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Posts: 79
Joined: Jul 2016
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OK, I will try that next. Thanks
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len47merc |
07-20-2016 @ 9:21 AM
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Senior
Posts: 1165
Joined: Oct 2013
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deluxe40 - will acetone attack the main bearings? I've seen main bearings sprayed with brake clean and the bearing coating is pretty much toast after that - don't know what acetone and associated fumes will do. Erring on the side of caution here - may be nothing to it but were it me I'd start with something more than a bit less aggressive like ATF & kerosene, etc.. EDIT - tommylea - are you convinced, even though the driveshaft is out, that nothing is locked up in the transmission? Steve
This message was edited by len47merc on 7-20-16 @ 9:26 AM
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40 Coupe |
07-20-2016 @ 9:27 AM
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Senior
Posts: 1675
Joined: Oct 2009
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You can use MMO to make sure everything is lubed.
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tommyleea |
07-20-2016 @ 9:51 AM
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Posts: 79
Joined: Jul 2016
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47merc No, I guess I am not sure about the tranny. I will investigate that. Thanks..
This message was edited by tommyleea on 7-20-16 @ 9:52 AM
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