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| OT Timing Cover Seal Question OT https://slantsix.org/forum/viewtopic.php?t=43035 |
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| Author: | oldodge [ Tue Dec 28, 2010 6:54 pm ] |
| Post subject: | OT Timing Cover Seal Question OT |
A lot of knowledgeable engine folks here so although it is not for my 225 slant but for my 230 Dodge flathead: Which would you prefer as a timing cover seal, a leather seal or a nitrile rubber seal? Both are available and original was leather but I'm not sure which is better. My hub has a big groove in it so I ordered a speedi sleeve but have yet to order the seal. Any opinions? Thanks, Tim |
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| Author: | Joshie225 [ Tue Dec 28, 2010 7:23 pm ] |
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Nitrile for sure. |
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| Author: | oldodge [ Tue Dec 28, 2010 8:18 pm ] |
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Thanks Joshua. Leaning that way but wanted to see if the leather may provide something I'm missing. |
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| Author: | Red [ Tue Dec 28, 2010 8:33 pm ] |
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Are your u-joint boots leather too? |
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| Author: | oldodge [ Tue Dec 28, 2010 8:37 pm ] |
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My u-joint covers are rubber but one of the ones I replaced was leather. The rubber ones don't hold up too well either. The car is a 1941 Dodge Business Cpe. |
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| Author: | emsvitil [ Tue Dec 28, 2010 9:21 pm ] |
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My front wheel hub grease seals are leather and they seem to last................ |
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| Author: | Sam Powell [ Tue Dec 28, 2010 10:12 pm ] |
| Post subject: | |
If your crank has the tiny, microscopic angled serrations on it at the seal surface, these will wear out a nitrile seal faster than a leather one. When I had my crank polished, I had them polish out these groves, and then used the nitrile seal. These tiny groves are angled in a way to push the oil back into the engine. But they function as a file against the plastic. Once good plastic seals were developed, they stopped applying this technology. If yours does not have the groves, then the plastic is good. Check it out and see if they are there. If so, stick with the leather. It will work fine. Sam |
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| Author: | oldodge [ Wed Dec 29, 2010 6:40 am ] |
| Post subject: | |
Sam, That is exactly the type of info I was hoping for. I am using a speedi-sleeve to refinish the hub sealing surface and they are polished stainless ("SKF SPEEDI-SLEEVE is thin-walled, 0,28 mm (0,011 in), and made of high quality stainless steel. The contact surface is wear-resistant and machined to minimize directionality (0° ±0,05) with a finish of Ra 0,25 to 0,5 μm (10 to 20 μin), depending on size.")so I will order the nitrile seal. Thanks everyone for the replies.....Tim |
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