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07-16-2021, 04:19 PM | #1 |
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Join Date: May 2010
Location: Bismarck ND
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Front rope oil seal
What is the consensus on the front rope oil seal? I have used a modern seal on most of my engines, but on this engine I have had both a modern seal leak and a replacement modern seal leak. I am planning to use a rope seal this time. I picked up a pan gasket set while on vacation and the rope seals appear to be teflon coated. Do I soak them as with the old fiber ones or not. Also do I cut them or leave them full length. I was not planning to pull the engine, but only cut the old modern seal and remove it. I will probably use a different front cover and oil pan and have the seal installed before the swap.
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07-16-2021, 04:29 PM | #2 |
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Location: Thorndale, Texas
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Re: Front rope oil seal
Ok, I am not sure what the majority vote is. I will probably go with the modern seal and sealant. Can this be done without pulling the engine and maybe dropping the pan down?
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07-16-2021, 05:31 PM | #3 |
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Re: Front rope oil seal
The questions I was asking is whether to soak the seal and should it be trimmed.
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07-16-2021, 05:57 PM | #4 |
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Re: Front rope oil seal
I don't soak the rope seals. I do trim them some if they are what I consider overly long. However I don't trim them overly short as having the ends compress is important.
I do smear some RTV on the sides of the seals that contact the oil pan and the timing gear cover. I also put grease on the face of the seal that contacts the crank shaft prior to assembly.
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07-16-2021, 07:23 PM | #5 |
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Re: Front rope oil seal
I do soak rope seals and for the Model A do not trim them.
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07-16-2021, 07:41 PM | #6 |
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Re: Front rope oil seal
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The Teflon coated seals do not seem to absorb any oil. Grease gets the seal through the start-up. Check that the pulley is well polished to avoid damaging the seal. Works almost all the time! Good Day! www.durableperformance.net |
07-16-2021, 09:37 PM | #7 |
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Re: Front rope oil seal
Just make sure the seal surface on the pulley is absolutely smooth and round. On new pulleys, I will make sure the surface is essentially polished and free of any machining marks.
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07-16-2021, 09:56 PM | #8 |
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Re: Front rope oil seal
Same here. I do however do some pre fitting after they are in the grooves. Nice thing about rope seals, if you need to take the timing cover off, you don't have to fight the one piece seal coming out of the groove.
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07-16-2021, 10:29 PM | #9 | |
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Re: Front rope oil seal
Quote:
Hope this helps and you project is leak free |
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07-17-2021, 11:16 AM | #10 |
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Re: Front rope oil seal
Ditto
Many, many years ago, working on flathead V-8s, my brothers and I didn't know that the rope seals needed to be soaked, so we never did it. We never had one leak either.
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07-17-2021, 03:12 PM | #11 |
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Re: Front rope oil seal
Any of the ones we have gotten from Snyder's, soak up the oil. They, too, look to be a Teflon type material.
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