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Old 12-11-2017, 08:30 PM   #21
flatjack9
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Default Re: 1937 crank pulley seal?

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Originally Posted by Solo_909 View Post
Thanks guys, so this is getting a little to over my head and skill level just to fix the crank pulley lol. Looking. At the Speedo sleeve, I have no idea what size, width, length, or any of that info to order one. Can’t I just buy a new pulley?
Yes.
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Old 12-12-2017, 01:11 AM   #22
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Default Re: 1937 crank pulley seal?

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Originally Posted by Tony, NY View Post
Speedi-sleeve by Chicago Rawhide. #99162. NAPA did sell them. Here it is. I used this one on my '51 Merc. Check size against yours.
https://www.napaonline.com/en/p/NOS99162
Install video https://www.youtube.com/watch?v=5XIjYuhxKsw
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Originally Posted by RKS.PA View Post
Solo, the install video that Tony referenced above will give you a better picture on how these thin sleeves work on our flat head pulleys. If you don't feel comfortable or have access to a micrometer to measure diameter and length of the area you need to repair, another option is to take your pulley to a machine shop and let them put the proper sized sleeve on for you. As to whether or not you can buy a new pulley, bear in mind that these were all intended to be used with the rope seal, so finding one that's set up for the new one piece might be a challenge.

Dick.
Thanks guys!

Should I buy a sleeve that covers the whole outer crank shaft part that has the grooves worn into it or just a long enough piece to cover the wear marks?
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Old 12-12-2017, 01:51 AM   #23
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Default Re: 1937 crank pulley seal?

I'd really like to find one of those pulleys that isn't bent!
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Old 12-12-2017, 09:32 AM   #24
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Default Re: 1937 crank pulley seal?

What really matters is that your sleeve covers the part of the pulley that the new one-piece seal rides on. The rest of the pulley snout doesn't matter unless some of the better minds here may feel differently.

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Old 12-12-2017, 10:39 AM   #25
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Default Re: 1937 crank pulley seal?

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I'd really like to find one of those pulleys that isn't bent!
I have some that aren't bent and have no groove on the seal surface, but we are half a world apart
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Old 12-12-2017, 12:13 PM   #26
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Default Re: 1937 crank pulley seal?

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I know I'm in the minority when it comes to these "Modern" seals but I don't recommend them. They must be perfectly centered to work well, and to survive. They also are not as durable as the rope seal. I have never had a front rope seal leak. They are far less likely to leak than the rear seals. Rubber seals wear, the rope seals don't. Consider what you have been through, and what you have ahead of you "accommodating" an inferior solution.
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Old 12-12-2017, 12:34 PM   #27
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Default Re: 1937 crank pulley seal?

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I know I'm in the minority when it comes to these "Modern" seals but I don't recommend them. They must be perfectly centered to work well, and to survive. They also are not as durable as the rope seal. I have never had a front rope seal leak. They are far less likely to leak than the rear seals. Rubber seals wear, the rope seals don't. Consider what you have been through, and what you have ahead of you "accommodating" an inferior solution.
I agree with you on not using a modern lip seal in this location. I used one on a 59 build some years ago and it did not fit well at first in the front of the oil pan. Had to work on the pan a bit to get the fit right, then I was concerned about correct alignment in the sealing area. I wound up embedding the seal with RTV in the oil pan and timing cover slots, with the crankshaft and pulley temporarily in place to make sure the seal was centered properly.

I now prefer to use the rope seals that Best Gasket Company supplies in their engine rebuild gasket sets.
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Last edited by JM 35 Sedan; 12-12-2017 at 12:43 PM.
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Old 12-12-2017, 07:43 PM   #28
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Default Re: 1937 crank pulley seal?

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I have some that aren't bent and have no groove on the seal surface, but we are half a world apart

The tyranny of distance John...
I have a box of at least 6 and when they balanced my engine there was a double row one that was half decent and when I went try it was for the larger crank ..doh!
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Old 12-12-2017, 09:25 PM   #29
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Default Re: 1937 crank pulley seal?

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I have some that aren't bent and have no groove on the seal surface, but we are half a world apart
I’d be interested in one.
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Old 12-16-2017, 08:23 PM   #30
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Default Re: 1937 crank pulley seal?

Okay a little update. Went to Napa to try and find the speedy sleeve but no luck. The “groove” in the crank pulley seems to be more just a paint wear mark vs an actual groove and they said it should be fine. They couldn’t find any sleeves in their books that matched my OD so I’m still searching to find a sleeve that will fit.

I finally removed everything from the front to gain accesss. I definatly only want to do this once so my question is with original crank pulleys being hard to find and the seal I have being modern should I grease the crank pulley shaft so the modern rubber seal doesn’t wear due to friction? It seems to be a good fit but I would assume at high rpms the inner part of the seal would heat up and start to come apart.





Last edited by Solo_909; 12-17-2017 at 12:21 PM.
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Old 12-16-2017, 11:14 PM   #31
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Default Re: 1937 crank pulley seal?

Looks like the pan and the front cover have a different size opening.
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Old 12-17-2017, 01:28 AM   #32
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Default Re: 1937 crank pulley seal?

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Looks like the pan and the front cover have a different size opening.
Or the camera being held at an angle to the crank.
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Old 12-17-2017, 10:39 AM   #33
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Default Re: 1937 crank pulley seal?

I thought of that too, but he said the crank appears to be tilted down. I'm sure he looked at it straight on.
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Old 12-17-2017, 12:23 PM   #34
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Default Re: 1937 crank pulley seal?

I guess it was just a weird angle.

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Old 12-18-2017, 05:20 PM   #35
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Default Re: 1937 crank pulley seal?

Okay so someone please tell me that I can slide an original rope seal in the valley without have to remove the whole under carriage to remove the oil pan?
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Old 12-18-2017, 05:27 PM   #36
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Default Re: 1937 crank pulley seal?

I'd pull the engine before I removed the front end. It's not a difficult job and it looks like you already have a lot of the front end sheet metal and radiator out. Probably just 1 hour to remove engine at this point.
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Old 12-18-2017, 07:09 PM   #37
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Default Re: 1937 crank pulley seal?

The problem is I don’t have a cherry picker so I have to go the other route.
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Old 12-19-2017, 09:51 AM   #38
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Default Re: 1937 crank pulley seal?

You can probably rent an engine hoist from a local NAPA or similar auto parts store. Or maybe even a fordbarner near you would be willing to help with this. Just some ideas.
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Old 12-19-2017, 12:27 PM   #39
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Default Re: 1937 crank pulley seal?

When I pulled the engine on my 34 roadster I didn't have a cherry picker but the big truck repair shop up the road had one. A case of bud light & they even loaded it into the bed of my pickup. They said to take as long as I wanted as they hardly used it anymore, they liked the forklift better.
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Old 12-19-2017, 01:59 PM   #40
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Default Re: 1937 crank pulley seal?

You don't need a cherry picker. You can jack up the engine front, block it up under the water pumps and the pan can be dropped. The crankshaft has to be rotated to get the counterweight out of the way. I have done it several times. You then can remove the front cover, and properly replace both seal halves.
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