Labdork Posted November 7, 2019 Report Share Posted November 7, 2019 My crank pulley seal just started leaking. The seal was new with a head gasket 2 years ago. Has anybody shimmed their pulley out a little to bring the wear groove off the seal? Other suggestions? Thanks! Quote Link to comment
datzenmike Posted November 7, 2019 Report Share Posted November 7, 2019 If using a synthetic oil replace with conventional oil. You'll never need that much protection and a waste of money. A thick enough washer will throw the belt out of alignment. Is it really grooved or just a stain etched into the metal? If it were mine and there was real damage, I would polish the crank surface with 800 paper, rub a thin smear of RTV on the insides of the hole for a positive seal and drive the seal in with a suitable sized socket or pipe and leave it proud by 1/8". Be sure to lube the seal lips with oil or grease before installing so it does not start up dry. Quote Link to comment
datsunrides Posted November 7, 2019 Report Share Posted November 7, 2019 At one time you could buy a thin metal sleeve that pressed on the pulley over the seal surface. Maybe they are still available. I think they were called repair sleeves or something like that. Quote Link to comment
datzenmike Posted November 7, 2019 Report Share Posted November 7, 2019 On the GM 396 the replacement seal is thinner and pushes in farther before bottoming. This puts the seal lips on an unused surface. Quote Link to comment
G-Duax Posted November 7, 2019 Report Share Posted November 7, 2019 9 hours ago, datsunrides said: At one time you could buy a thin metal sleeve that pressed on the pulley over the seal surface. Maybe they are still available. I think they were called repair sleeves or something like that. They are still available. They are called 'Redi-Sleeve', made by Federal Mogal/ National. Any industrial bearing house, Probably NAPA, and eBay has them. Sold by the diameter that they are meant to be pressed on to. I use a thin film of Loctite when I put them on. Quote Link to comment
Labdork Posted November 7, 2019 Author Report Share Posted November 7, 2019 Great info! Thanks guys! Quote Link to comment
banzai510(hainz) Posted November 7, 2019 Report Share Posted November 7, 2019 (edited) the think Rockauto or others still have this. try 20/50 oil conventional use the double lip seal Edited November 7, 2019 by banzai510(hainz) Quote Link to comment
scooter Posted November 10, 2019 Report Share Posted November 10, 2019 speedy sleeve! you should be able to find one. and hainz is right, put in a new double lip seal. Quote Link to comment
datzenmike Posted November 10, 2019 Report Share Posted November 10, 2019 On 11/6/2019 at 6:45 PM, datzenmike said: Be sure to lube the seal lips with oil or grease before installing so it does not start up dry. Quote Link to comment
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