Have an 06 tC stock that i had the dealer repalce a S/C on about 15,000 miles ago. Luckily it was under warranty at 42,000 miles and the original dealership had never done the ECU reflash. From what i could tell, I never had any leaks on the original S/C but after running lean for 42,000 miles, they had to replace the short block and the S/C.

Anyhow, I now have some oil leaks on the S/C and i wanted to find out what you guys had to say about what might be the cause. See pictures below. I know there's seal problems, bearing problems, shaft problems...just not sure which one i might have, if any.

This looks to be the only place that any oil is leaking. It is happening on the underside of this same joint as well:



Here are the ends of the shaft and some more pics:


This one looks clean as a whistle:





Any help or advice would be greatly appreciated so i know what to expect from the dealer if i decide to take it to them.

 

Looks like it is leaking at both you shaft seal and the Oring.

 

Those TRD supercharges are junk, do any of them run well and last a long time? Sorry this is off topic but all the threads I see are about how ____ty these things are.

 

2nd picture is the shaft on the pulley end, 3rd picture is on the S/C side. Its clean on that end of the shaft.

 

Its just a oil leak!
And to answer you. Yes there are some s/c with a lot of miles on them.

 

The output shaft seal deff broke, the reason why the end of the shaft at the pulley side looks like that is prob because the oil traveled across the shaft tube and its getting all over the place. As far as anything else is f'up, can't really tell unless you take it apart, bearings inside the blower could be bad and the actual shaft and shaft bearings could be bad as well.

 

There are a very few, extremely small percentage, the ones that mainly hold up the best are the ones that were designed for the 07 tC's(the ones with the one idler pulley) even thou I just replaced a shaft on my friends 07 SC, the actual blower itself seemed to be in great condition.

 

output shaft seal...thanks for the info. what about the leak coming from the joint on the blower? Could these leaks have been caused by poor installation?

 

Mine is an 07, about to break 40k miles on it and in the process of rebuilding it as a preventative measure. I still see mostly 05-06 ones crapping out at the higher rate, not saying there aren't issue you need to address with owning one.

 

Actually it could be the output shaft seal or the "O" ring seal, this one:


That O ring seal goes around here:


Mine broke as you can see and oil started to drip down to the bracket, it wasn't as bad as yours, but still noticeable, so it could be those 2 things.

 

Yup, mine runs like a champ. I was one of the first 2007's S/C'd after the revision. Honestly, I have seen more fail turbo threads than I have the small handful of SC fails. Also, almost every single SC fail, I have noticed they have been modified. Your not supposed to modify things if it doesnt come like that, like it or not. You put a smaller pulley on, guess what, its going to CONSTANTLY (yeah, even at idle) spin that much faster, ALL THE TIME.

You guys just dont give them a chance because they are not high HP numbers. Some of us dont care about having 300hp. I know I dont. My car is exactly how I want it. I have ZERO issues with anything, but I come on here all the time hearing about how "wahh.. my turbo isnt running right, I wanna give up, or waaah.. I got a crappy tune, or waaah.."

So - I'd have to say whatever YOU have on YOUR car is junk. I love my S/C. I dont need to have 300hp. I have 2 world class honda 1000cc superbikes to go fast. Most turbo guys think their particular car is "fast"... Its not. Not until you get to 400+hp. 300hp in a 4 cyl is still just "quick" to me.

My cbr1krr puts down 168hp, and weighs in at 435lbs. THATS FAST. 186mph on a stock motor, plus - mines de-reg'd and will peg 191mph. I have the videos to prove it. Thats with a speedo healer (google it) to verify its accurate to .025% on the gearing. Have fun doing you 127mph.

 

i dont completely agree but still found this entertaining!

 

There are a handful of completely stock SC'rs out there that crapped out as well, I went through 3 and never modified it, hope yours keeps running good and agreed on the rest of your statements.

 

Is the revision a different S/C part number or is it a modification of the same S/C that is on the 05-06? Can you put the 07 revision on an 05-06?

 

So kevin, let me get this straight. Your previous SC lasted 42000 miles? And this new one with the leak has 15k on it? Do u hear any stange noises that may sound like worn bearings with this current one?

 

I think the "kits" had different part numbers, all that was done to the 07 SC's what a different shaft tune, different shaft bearing housing with altered bracket, it sits a bit higher then the old one and has only one idler pulley, its also lighter, I had a completely assembled 05-06 shaft on one hand and a completely assembled 07 shaft in my other and the 07 one felt allot lighter, it also had a taller blower/transmission bracket to compensate for the shaft sitting a bit higher(hope that makes sense). I do not think that the blower itself was any different on any of the kits, hope that helps.

Oh....and a smaller belt size too.

 

I just cant seem to wrap my head around whats goin on in picture number 2. How is the pulley side of the shaft leaking oil!? Does no one else find this strange considering the engine oil doesnt flow anywhere near the pulley side housing. I really find it hard to believe the oil leaking from the blower side is running ALL THE WAY along the shaft to the pulley side. Its just impossible considering how the blower side, where the shaft meets the housing, is completely clean. Dare i say that the pulley side housing contains its own oil (considering this IS the redesigned 05-06 SC which i also have)? Wow.

 

the pulley side has greased bearings. what he was saying is the oil was leaking INSIDE of the shaft cover over and out of the pulley side.

i have an 06 s/c and mine works fine and i love it, i wasn't looking to go beating people left and right, i wanted to dip my toe into boosting a car, lol.

 

Yea i knew it had greased bearings, thanks for the clarification with the shaft, that makes much more sense.

I really dont need to justify why i went SC. Its always the same people bashing the SCs reliability. It got old 3 years ago. Just gonna leave that alone. But i will admit, like the rest of the SC owners, i love the damn thing.

 

If you ever get a chance to take one of these shafts apart you will understand how oil could travel all the way across inside the shaft all the way to the end of it, there's nothing inside of there blocking it from traveling across it and no the pulley side housing does not contain its own oil, trust me on that. I'll post pics of what I'm talking about tomorrow. It is possible that the oil could have traveled across from the outside as well.