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Crank Seals

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9Njoe

10-09-2001 08:22:52




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I am looking for advise on replacing the rope seals on the crank. I had to drop the oil pan and I am going to replace the lower parts of the seals. since they were not leaking, I was wondering if it was a bad idea not to attempt the top halves. I would hate to have to drop the crank if something went wrong. So What do you think?

Joe




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Mike OH

10-09-2001 11:10:05




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 Re: Crank Seals in reply to 9Njoe, 10-09-2001 08:22:52  
9Njoe- You posed a good question at just the right time for me. I had to replace a cracked oil pan that had been welded and cracked again on the 8N I bought in April. Got the old pan off and have been scraping old gasket matertial off the block, but after taking a look at the upper front and rear seals I have not been in too big of a hurry to change them out. Somewhere I read to soak them (seals that is) in oil for a couple of hours before installing, but I've been dragging my feet. Looks like it may be a bit of a job to change them, and I would also welcome any comments or tips in making the change. Thanks

Mike OH
'52 8N515797

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9Njoe

10-09-2001 11:55:51




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 Re: Re: Crank Seals in reply to Mike OH, 10-09-2001 11:10:05  
Hi Mike,

Yes, I have been agonizing over this ever since I dropped a valve rotator down the oil galley and had to take the pan off. I found quite the little parts collection in the bottom of that pan. (spare parts) but anyhow, it would be a disaster to have to drop the crank after tippy toeing around the engine with it still attached. Once you get into the crank, you get into the might as wells with the clutch etc, you know.

Anyway, I think I will heed the advice of the majority and "donna muck around" I guess that if the crank is not dropped, then the top halves of the seals dont know the pan is gone. I would recommend that you do the bottoms though because they will dry out while the pan is off.

Just curious, where your pan is cracked. Mine is busted right where it connects to the front axle support. They brazed it and it seems to be OK but was toying with the idea of replacing it. Do you have any idea what one would cost and where I could get it?

Joe

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roperboy

10-09-2001 08:35:01




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 Re: Crank Seals in reply to 9Njoe, 10-09-2001 08:22:52  
hi 9njoe, i think i read a method somewhere to replace the upper seals without dropping the crank but i wouldnt try it. using Dell's famous words, if theyre not leaking,"donna mucka round" leave em be. good luck



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TimK

10-09-2001 13:08:16




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 Re: Re: Crank Seals in reply to roperboy, 10-09-2001 08:35:01  
I wouldn't mess with the top if they were not leaking. I guess I would replace the bottom simply because they are easy to do and it can't hurt. I would also pull the rod caps and check out or renew the rod bearings. FWIW: You have to normally pull the crank to get to the top seals, but I recall Zane had said that you can get a seal that fits the Fergusun TO-35 and use that seal to repack the top without dropping the crank. I guess you can just pound it in. My $.02

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