My first T5 leaked out of the input and I figured it was because it was a used doner and the seal must be shot. I put in a totally rebuilt and bench tested T5 about two weeks ago, now it's leaking at the same place. Fluid drips out of the bellhousing telling me it pretty much has to be input shaft seal. Am I just having bad luck with trannys? Or could something else cause this like out of round clutch or pressure plate causing a wobble? Or even overfilling the trans? Hate to pull the tranny again ( Mark 2 )Using Dexron fluid, and leak stops after the car is parked.
Are you using a stock or aftermarket bellhousing? Perhaps you have a runout issue or maybe you were just unlucky twice.
FFR coupe #190 SOLD
RCR GT40 SOLD to Fast and Furious 5 producer
Kirkham #690 (289 FIA) w/427w and TKO 600
1966 GT350 clone w/Boss 347 and TKO 600
1966 Bronco w/289 and 3 speed
1967 Mustang convertible rust bucket (soon to be GT350 clone)
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote."
Did you check your bellhousing to see if the trans input shaft is correctly centered? If it is out of alignment it could create a wobble and wear the seal. If you have to pull the trans again I recommend you check this.
hi this might seem stupid ,but ive seen it happen a couple of times ,is the vent on the trans plugged ,ive seen these get rtv in them and then the trans will pressurize while driving and it will be pushed out of a seal or two ,when you stop driving it will bleed off and stop leaking i have seen this a few times you may want to check it
I just installed a reman tranny, and had a drip where the tranny meets the bellhousing. I had filled the tranny through the shifter hole, so I had never checked the fill plug. It was loose, and was running down the side of the tranny and dripping...
It's Not What You Bought That Matters, It's What You Built!
FFr 1686, the vent is located on the topside right where the two halves bolt together, on the passenger side of that round tubular part of the trans that the shift rod slides in. About 1' forward of the shifter. It's a little plastic piece on my old T5. Now I gotta jack the car up darnit!
Also, check that there isn't a scratch on the surface where the input seal rides. This could be a leak path. If there is a scratch, polish it out with emry cloth or better yet, get a "speedi-sleeve" or "redi-sleeve" shaft repair sleeve. These sleeves make great surfaces for seals to ride on.
I am having the same issue. I used the proper Anerobic sealer, new seal and bearing retainer, pilot seems fine. I just fired mine up and did not drive it and its leaking already. I put the bearing retainer in with the return at the bottom. There appears to be be two returns...one deeper and wider and one thinner. I put the thinner one at the top, What is a speedi-sleeve and where do you get them? I am using the stock bellhousing and T-5....Help!
MkIII,3-link, dual roll bars,Kirkey Racing seats, 3.55\'s, 351/400hp, T-5Z,black bullits,red with black vibrance stripes, 315/35/17 rears.
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