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Discussion Topic:
Flathead issues
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tommyleea |
08-04-2016 @ 8:23 AM
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Member
Posts: 79
Joined: Jul 2016
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Is there a specific thing or area to look at concerning the stuck valve? Like the 5 main reasons for a stuck valve in the flathead are.....
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tommyleea |
08-03-2016 @ 8:43 PM
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Member
Posts: 79
Joined: Jul 2016
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Well, removed the oil pump idle gear, and sure enough the camshaft cam out. I removed the lifter, and then got a straight shot at the valve. It took several whacks, but finally the valve came out, along with the guide. The valve is frozen in that guide. The valve stem is bent, but I don't know if I might have bent it when I removed it. Now I can find a machine shop, and get the block checked out.
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tommyleea |
08-03-2016 @ 5:45 AM
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Member
Posts: 79
Joined: Jul 2016
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Made up a slide hammer puller for the oil pump idler gear. Hopefully I will be able to remove the idler gear, and then move the cam back and away from the stuck valve. Then I can get the lifter, spring, and hardware out. That will give me a straight shot at the bottom of the valve. Wish me luck!
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tommyleea |
08-01-2016 @ 11:28 AM
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Member
Posts: 79
Joined: Jul 2016
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Thanks Tom..The keepers are off, but the valve is closed, and will not budge. Seems strange since it is an intake valve. If I can move the cam back I will be able to remove the lifter from the bottom. Then at least I will have a straight shot at the valve. Trying to figure out how to remove the oil pump drive gear that is in the block now.
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TomO |
08-01-2016 @ 7:36 AM
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Senior
Posts: 7252
Joined: Oct 2009
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You should be able to remove the stuck valve by compressing the spring and removing the keeper at the bottom of the spring. Breaking the head of the valve off and driving the guide down to release the guide keeper (horse shoe clip) will also work.
Tom
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tommyleea |
07-30-2016 @ 8:36 PM
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Member
Posts: 79
Joined: Jul 2016
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Removed all the pistons and crank. Removed all the valves and guides except for the one that is stuck. So far, everything looks in good shape. Now, my next issue is the stuck valve. More to follow. If I can remove the cam from the rear, that is my next step. Then I will have access to the problem valve.
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tommyleea |
07-29-2016 @ 7:39 PM
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Member
Posts: 79
Joined: Jul 2016
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Found one valve that is stuck tight. I think this is the reason for the broken cam. Pried on the valve guide to get the retainer out, and the valve guide broke. I read somewhere about drilling the head of the valve off. Then I could tap the guide down to remove the retainer, and then pry the assembly up and out of the block. Any thoughts?
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tommyleea |
07-28-2016 @ 9:14 PM
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Member
Posts: 79
Joined: Jul 2016
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Removed the driver side cylinder head, and everything looks normal. Actually, looks in good shape. The intake valves are very clean, but that is probably a normal thing. Not much carbon build up on the other parts. I took pictures, and have them on photobucket, but I can't seem to get them loaded. I wonder why the camshaft would have broken? It doesn't look like the loose parts rattled around in the block.
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tommyleea |
07-28-2016 @ 2:54 PM
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Member
Posts: 79
Joined: Jul 2016
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Good thoughts Clifford. This was a non running engine. Seller didn't have any history on it. I thought I might be able to at least get it running, but no such luck. I am going to remove the driver side head tonight, and see if there are any surprises.
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cliftford |
07-28-2016 @ 10:53 AM
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Senior
Posts: 845
Joined: Jan 2014
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Here are my thoughts: any time you buy an old engine whether it runs or not, assume that it needs rebuilding. these old v8s can be pretty well worn and still sound pretty good. If the seller says it is rebuilt ask for paper work and try to contact the person or firm who did it.
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