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Old 10-19-2019, 12:57 PM   #1
3739ford
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Default Front one piece seal 8ba

Do I need to put any silicone around the outside edge, or will the oil pan squeeze it to seal?
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Old 10-19-2019, 02:27 PM   #2
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Default Re: Front one piece seal 8ba

I went ahead and goobered up the two I've done. Couldn't see any reason not to.
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Old 10-19-2019, 02:36 PM   #3
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Default Re: Front one piece seal 8ba

The one piece seal is being set in a location that was never intended to be perfectly round the front cover is machined round however the stamping of the oil pan is not a perfectly round shape. When those two groves are placed on the block with the gasket for the oil pan included you now have a more oval shape than round shape. Since the two pieces of rope type seal material were able to conform to these outer surface variations it was not an issue. When you install a one piece front seal the outer surface situation will need some type of sealer. But if your putting this type of seal on the Ford reverse spiral grove I would think this grove will damage the seal. However the seal would work well if the seal surface on the crank shaft is smooth. From what I know when installed correctly the original design Ford type seals will work perfectly for many thousands of miles and at well over 200 MPH
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Old 10-19-2019, 03:37 PM   #4
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Default Re: Front one piece seal 8ba

Thanks for the info, I bought the kit with smooth spacer and one piece rubber seal. Thought I would give it a try.
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Old 10-19-2019, 05:56 PM   #5
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Default Re: Front one piece seal 8ba

Not a lot of miles on either of mine, but no leaks and I like em. My reading here has indicated the seal should work okay with the spiral groove as well.
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Old 10-20-2019, 09:36 AM   #6
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Default Re: Front one piece seal 8ba

I like the simplicity and ease of putting together. Still a long way from firing mine up.
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Old 10-20-2019, 11:21 AM   #7
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Default Re: Front one piece seal 8ba

Quote:
Originally Posted by 3739ford View Post
I like the simplicity and ease of putting together. Still a long way from firing mine up.
Just a "tip" with those aftermarket sleeves, we recently got our own "tip" from a vendor that some of them got out the door with the wrong I.D.

I would recommend measuring the O.D. on the crank (OEM=1.311"/aftermarket=1.307" nominal) and the I.D. on that sleeve! Sleeve should be 1.3115"? You don't want it too loose? it should slide on the OEM shaft "snugly", slightly lesser on the aftermarkets.

Important: No matter what shaft you're using it's good practice to put some sealer between those sleeves and the crank snouts, it stops any oil from "seeping" between both pieces and getting to the damper/bolt. We use "The Right Stuff" there also!

Thanks, Gary in N.Y.

P.S. When we assemble our units here we do use a "thin" coating of "The Right Stuff" on the entire circumference of the seal, so far we haven't a single leak ever!
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Old 10-20-2019, 07:27 PM   #8
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Default Re: Front one piece seal 8ba

there is a video on Youtube on how to do this , it shouldn't be hard to find.
I was meticulous on installing mine [21 stud].. Damn it leaked bad , popped the old rope in there and its pretty damn good now.
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Old 10-20-2019, 07:37 PM   #9
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Default Re: Front one piece seal 8ba

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Originally Posted by Talkwrench View Post
there is a video on Youtube on how to do this , it shouldn't be hard to find.
I was meticulous on installing mine [21 stud].. Damn it leaked bad , popped the old rope in there and its pretty damn good now.
My experience as well.
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Old 10-20-2019, 07:51 PM   #10
3twinridges
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Default Re: Front one piece seal 8ba

Quote:
Originally Posted by GOSFAST View Post
Just a "tip" with those aftermarket sleeves, we recently got our own "tip" from a vendor that some of them got out the door with the wrong I.D.

I would recommend measuring the O.D. on the crank (OEM=1.311"/aftermarket=1.307" nominal) and the I.D. on that sleeve! Sleeve should be 1.3115"? You don't want it too loose? it should slide on the OEM shaft "snugly", slightly lesser on the aftermarkets.

Important: No matter what shaft you're using it's good practice to put some sealer between those sleeves and the crank snouts, it stops any oil from "seeping" between both pieces and getting to the damper/bolt. We use "The Right Stuff" there also!

Thanks, Gary in N.Y.

P.S. When we assemble our units here we do use a "thin" coating of "The Right Stuff" on the entire circumference of the seal, so far we haven't a single leak ever!
Hate to hi-Jack the thread but I saw this and have worried about ever since I built my engine. I didnít seal the shaft for the sleeve. Any thoughts Gofast on that, pull the pulley and try to seal at the end before reinstalling the pulley?

JB
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Old 10-22-2019, 06:02 PM   #11
3739ford
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Default Re: Front one piece seal 8ba

3twinbridges,
I watched the video on YouTube and took mine back off and separated and added silicone and put back together. I would rather have piece of mind than leaking seal. Wasn't any trouble at all the bolts automatically start backing themselves out when I walked up to block.
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Old 10-22-2019, 06:52 PM   #12
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Default Re: Front one piece seal 8ba

Glad you brought this back, I was going to also to cover a few more items!

When you install the sleeve on the crank (up against the oil slinger) make certain the key for the timing gear doesn't contact the sleeve and keep it from bottoming out like it should. The slinger is also "keyed" but the key itself may be a bit too long (photo below), this area needs close scrutiny!

Quote:
Originally Posted by 3twinridges View Post
Hate to hi-Jack the thread but I saw this and have worried about ever since I built my engine. I didnít seal the shaft for the sleeve. Any thoughts Gofast on that, pull the pulley and try to seal at the end before reinstalling the pulley?

JB
There are two ways to help seal up that area, one may be a very "narrow" rubber "O" ring, the other is a thin bead of "The Right Stuff" along the rim of the damper just before installing it, this is how we prefer to do it here!

Thanks, Gary in N.Y.

P.S. Here's a close-up of the area I'm speaking of, it shows just how close the key, the slinger and the sleeve really are, we "trimmed" that key to clear it all.
Attached Images
File Type: jpg Flathead Ford Crank-Timing Gear Keyway.jpg (63.0 KB, 30 views)
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