S5 Input Shaft Seal - Do it yourself?

wesinls

wesinls

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Found out why my clutch was slipping - now wondering if I should just change out the input shaft seal myself, or now that it's out of the car have it gone through by a pro ...looks like it's number 20 on the below file from weddle...S45-9113 | S459113 | Weddle Industries | Racing Transaxles, Gears, Gearboxes, Clutches 

I can wiggle the shaft a bit, which might be why the seal is bad, or might be normal? Number 11 on the shot below also seems to help hold the shaft centered...

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Take it to McDowell Performance. He is local to San Diego. He is a straight shooter and will advise you on whether a complete tear down is necessary.

 
I would say since you are already half way there, just take it in to have it checked. Would be a bummer to do the seal and have it be something else and you have to remove it twice. 

 
a little play in the shaft is normal i would check the piolt bearing in the crank not hard to change the seal

 
I just recently replaced mine on my S4D with the trans still in the car, pretty easy like L.R.S. said. Order an extra just in case but only took a few min to get it out and slide the new one in. Might as well put in a new TO bearing while its apart too 

 
That is alot of oil.

I would pull the clutch and check the discs, PP etc.

 
Last edited by a moderator:
It's easy to do.  Input shaft should have some wiggle to it up/down, but not in/out.

Head down to McDowell and buy a couple, he generally has them in stock.

 
Sorry, forgot you said this was the reason you were pulling motor to check clutch.

I bet the clutch discs are shot with impregnated oil.

 
Dropped off the trans at McDowell today - asked him to go through it (since I never have, and not sure previous owner ever did?) Also going to move to a stage 3 dual disc clutch (from a stage 2 dual disc)...ordered new pressure plate, new discs, floater plate, new pilot bearing, and all new bolts (~$800 for the parts).  My flywheel looks good -not too burnt looking an no divots that I can see or feel, plus new and only 1 season on it.

Also purchased a pilot bearing removal tool - I've never had to remove one - hoping it comes out easyish.

If anyone is interested in my stage 2 pressure plate let me know...1 season and 2 trips old. 50 bucks?

Hoping to be back in action in 2 or 3 weeks...Kartek already shipped my parts out today :).

 
no one has mentioned anything about your trans vent.  this is a must.  take off the hose and lightly blow through it. it should have zero restriction  if it has some restriction it is not a good vent.  this will cause back pressure in the tranny and force oil out of even your new seal.  i do not like looping the vent hose in a circle either.

btw if you didnt touch your TO bearing, then it looks like it was ready to twist off!

 
John@Outfront said:
no one has mentioned anything about your trans vent.  this is a must.  take off the hose and lightly blow through it. it should have zero restriction  if it has some restriction it is not a good vent.  this will cause back pressure in the tranny and force oil out of even your new seal.  i do not like looping the vent hose in a circle either.

btw if you didnt touch your TO bearing, then it looks like it was ready to twist off!
Click to expand...
Thanks - yes, half of the throw-out bearing retainer spring is off the shaft in the pic (i messed with it before taking the picture) - and my vent tube is clear as I'm always puking a little bit of oil out of it.

 
wesinls said:
Dropped off the trans at McDowell today - asked him to go through it (since I never have, and not sure previous owner ever did?) Also going to move to a stage 3 dual disc clutch (from a stage 2 dual disc)...ordered new pressure plate, new discs, floater plate, new pilot bearing, and all new bolts (~$800 for the parts).  My flywheel looks good -not too burnt looking an no divots that I can see or feel, plus new and only 1 season on it.

Also purchased a pilot bearing removal tool - I've never had to remove one - hoping it comes out easyish.

If anyone is interested in my stage 2 pressure plate let me know...1 season and 2 trips old. 50 bucks?

Hoping to be back in action in 2 or 3 weeks...Kartek already shipped my parts out today :).
Click to expand...
You will be happy with McDowell’s product. Alumi Craft  recommended as well.

 
wesinls said:
Thanks - yes, half of the throw-out bearing retainer spring is off the shaft in the pic (i messed with it before taking the picture) - and my vent tube is clear as I'm always puking a little bit of oil out of it.
Click to expand...
dont assume that because you are puking oil from the tube its clear--you must test it with your mouth and it must blow easy--any restriction is too much!

 
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