crank seal ignition side.

[guycom]

Does the ignition side of the crank take the same seal as the alt side? I have oil under the timing plate... Thanks

[XS1100_OEM4ME]

No

No they are not the same. Here is the parts for a 79

http://www.boats.net/parts/search/Ya...TON/parts.html

Does the ignition side of the crank take the same seal as the alt side? I have oil under the timing plate... Thanks

[XS1100_OEM4ME]

O ring temp fix

What has been done on cars and might work on these bikes, is the O ring fix You clean the shaft and seal with paint prep cleaner (leaves no film and wont eat the seal) Then you put a "slight" film of oil on the shaft close to the seal. Next you slide an O ring down againest the seal and put a bead super glue around the seal and O ring (It melts the rubber parts togather and the oil film you put on the shaft keeps it from sticking to the shaft) I havent tried it on a bike, but should work

[guycom]

First thanks for the info OIL SEAL (S-32-48-7.8L-HS) i'm going to try my local auto parts store and see if they carry it. Gluing the o-ring is an interesting idea but if the seal is around $10 as the stator one was I think ill invest in it.

[bikerphil]

A bearing supplier will have that seal, BTW there is no outer lip on the replacement seal, otherwise the cases would have to be split. I'm sure you have already read up on the subject. The RS alternator crank seal is 32X45X7, the LS crank seal is 32X48X8.

[XS1100_OEM4ME]

Cool

Thats cool I thought you had to split the case to remove the old one If not, tap in and ride on

First thanks for the info OIL SEAL (S-32-48-7.8L-HS) i'm going to try my local auto parts store and see if they carry it. Gluing the o-ring is an interesting idea but if the seal is around $10 as the stator one was I think ill invest in it.

[bikerphil]

Naw, you can pry/cut it out with a little bit of patience. Always apply some RTV to the outer edge before tapping the new seal in.

[XS1100_OEM4ME]

Cool

Thats cool Looked like from the pic's that the seal was installed from the inside and had a lip to hold it there I am not big on scraping and scuffing the crankcase and shaft If it works for you guys, it must work

http://www.boats.net/parts/search/Ya...TON/parts.html

Naw, you can pry/cut it out with a little bit of patience. Always apply some RTV to the outer edge before tapping the new seal in.

[Barnfresh]

How about that..

My shoes were oily after riding today - the left side is leaking and the right side is seeping... I thought I would check here and see how to fix these seals. The first thread I saw has it all - complete with sizes and part numbers. I love this site! BikerPhil rocks!

[XS1100_OEM4ME]

Please

Please let me know how that works

My shoes were oily after riding today - the left side is leaking and the right side is seeping... I thought I would check here and see how to fix these seals. The first thread I saw has it all - complete with sizes and part numbers. I love this site! BikerPhil rocks!

[Barnfresh]

crankcase venting

As far as the leaking crankshaft seals - I was wondering if part of my problem may be from excessive crankcase pressure forcing oil by the seals. The crankcase vents through the 3/8 OD hose coming from the top of the transmission up to the airbox. If that is clear than all is well? There is no breather screen anywhere? What to folks with pod filters do - just vent overboard?

[cywelchjr]

Unless you plugged that there should be no way for pressure to build up. And besides, those seals are under pressure anyways from pressurized oil any time the engine is running anyways, so even if the crankcase got pressurized it wouldn't affect THOSE seals (just others). It's one of the reasons those are important, as they ARE under pressure when the engine is running, and the faster the engine is turning over the higher the pressure is.

[XS1100_OEM4ME]

Just asking?

OK, just asking I don't understand how the crank shaft seals are ever under pressure except gravity. They don't run in the pressure curcit (IE, cam, rods, mains) that recive oil under pressure from the oil pump I do see where the heat thins the oil when running and the spinning of the shaft inside the seal will increase the leak, even more so if the crank bearing is loose

Unless you plugged that there should be no way for pressure to build up. And besides, those seals are under pressure anyways from pressurized oil any time the engine is running anyways, so even if the crankcase got pressurized it wouldn't affect THOSE seals (just others). It's one of the reasons those are important, as they ARE under pressure when the engine is running, and the faster the engine is turning over the higher the pressure is.

[cywelchjr]

OK, just asking I don't understand how the crank shaft seals are ever under pressure except gravity. They don't run in the pressure curcit (IE, cam, rods, mains) that recive oil under pressure from the oil pump I do see where the heat thins the oil when running and the spinning of the shaft inside the seal will increase the leak, even more so if the crank bearing is loose

Well, if you look at the bearing, and where that seal is (both of them), there is the bearing, and the oil can go two ways, and the only thing that keeps half the oil from exiting the engine is that seal. Granted it wouldn't be a LOT of pressure, but it would be some as the oil trying to come out from under the bearing on that side has nowhere else to go other than get pushed back the other way by the seal blocking any further oil going that way. So pressure will build up against the seal just from that. I'll bet if you could find a way to measure you would get something a LOT less than main oil pressure but I'm pretty sure you would have positive oil pressure on the back side of that seal.

[XS1100_OEM4ME]

Wow

WOW, I am just learning Oil gushing out of the crank bearing and causing pressure on the crank seal WOW, how could I have missed that Are you for real

Well, if you look at the bearing, and where that seal is (both of them), there is the bearing, and the oil can go two ways, and the only thing that keeps half the oil from exiting the engine is that seal. Granted it wouldn't be a LOT of pressure, but it would be some as the oil trying to come out from under the bearing on that side has nowhere else to go other than get pushed back the other way by the seal blocking any further oil going that way. So pressure will build up against the seal just from that. I'll bet if you could find a way to measure you would get something a LOT less than main oil pressure but I'm pretty sure you would have positive oil pressure on the back side of that seal.