Dave64

Has anyone else experienced this problem? If so, what was the solution - fix?

Well, I drove the '64 for about 5 miles on Wednesday ( I have, maybe twenty miles on the car at this point). When we got back to the shop, fluid was dripping from the tail-end of the Keisler Tremec TKO600. (The trans was not over-filled) Yesterday, with the car back on the lift, it was discovered that the fluid was running out the trans vent, so we called Keisler and spoke with them today.

I'M NOT COMPLAINING. I'M LOST...maybe someone else has experienced this problem.

Keisler had two possible answers:

I have the wrong fluid, causing undo internal pressure (I have Pennzoil Synchromesh Manual Transmission Fluid, p/n 12345349) in it.

or

The vent tube is stuck open, which will, apparently, require pulling the engine/trans to repair.

Here's tech info I have from Tremec:

OilCaution:
NO OIL IN TRANSMISSION. Due to various synchronizer materials used in TREMEC transmissions, and different climates and applications, no one single fluid will work for all transmissions. We recommend GM synchromesh part # 12345349, or Dexron III / Mercon Spec ATF fluid for all TKO transmissions. The transmission should be filled through the fill plug located on the passenger side of the transmission. Proper fill level is achieved when oil reaches the fill plughole when level (approximately 5.28pints).

I am so f&#king close to finishing this 3 1/2 year project and am now being kicked in the nads with these problems. I'm not feeling well - where's the Tylenol?

Crunch527

I have been here before.

My TKO600 leaked from the vent and the speedo cable housing. I removed the speedo cable and reinstalled/retorqued and it quit leaking from that location.

As far as the vent leak, no way was I going to pull trans (again) for a vent leak. After getting wrong parts and having to pull the trans twice during the swap, I was so pissed off I just drove it anyway...I was content to let it burn up. The leak from the vent eventually quit after a hundred miles or so and the fluid level was fine (it didnt lose that much fluid from the vent leak). BTW: I too didn't think I overfilled.

robert miller

I am gussing I was lucky here on this part of the swap didnt have any problems at all. Sorry to hear this it is a pain in the azz to pull for sure.... Robert

Frankie the Fink

Wow - I fought through the infamous "slip yoke seal leak" and Keisler's redesigned slip yoke finally fixed it but have had no other problems (fingers crossed). I'll be lurking on here to see how things go...

Dave64

ttt

62Jeff

Hi Dave,
Perhaps it's just me, but I don't see that you asked a question other than the location of pain killers. Maybe others are similarly unsure if you are asking for guidance?

Jeff

Dave64

Jeff,

I am most certainly looking for guidance, or others who have suffered the same malady with their Tremecs. Of course, the cure is what I need to hear about...

Dave

62Jeff

Got it. Good luck, in my experience there's nothing worse during a restoration/rebuild than finding out the big expensive stuff you paid for, is of sub-par fit, finish, color, quality, and so forth.

Dave64

ttt...help?

KeislerSales

Pennzoil Synchromesh and GM Synchromesh are the same fluid so that wouldn't be the issue.

The vent relieves internal pressure so it has to be open in order to work. It's simply a metal cap on a spring. If it was closed then I would expect it to push fluid out elsewhere.

You say that fluid was leaking from the rear of the trans so that makes me think of the slip yoke since we've had issues with them. How old is this kit?

I would say clean everything up with brake cleaner and road test again to try and determine the exact location of the leak. Is it trans fluid for sure and not oil?

VG

I have also been dealing with a leak at the rear of the transmission, but not from the yoke. I replaced the seal and it still leaked. The last time we looked at it, we found the dripping was showing at the rear but was really coming from the shifter housing. We pulled the console and tighened the bolts. I have not been under to check it since so I do not know if that fixed it.

VG

midyearvette

makes sense to me.....

rubilahmadi

hi dave
did you fix this Tranny leak?
I have exactly the same issue with my brand new TKO5 which just finished breakin period
it is leaking from/around the vent

i am not also willing to pull apart my build to send the tranny for repair ( it has one year warranty)

Factoid

Well, you should start a new thread about your problem and specifically not listen to the people in this thread. The TKO uses ATF. Using manual tyranny fluid will foam up and bubble out the vent. Welcome to the forum.

Pop Chevy

Do NOT use ATF ! Use Pennzoil Synchromesh !!!!

rubilahmadi

i am actually using ATF during break in period. I am planning to use GM synchromesh fluid as recommended by manual. This leak is with ATF

Factoid

That is the right approach, sounds like your vent is stuck open.

rubilahmadi

is there any method/trick to fix it without removing the whole transmission?

what is going to happen if I leave it as it is and watch the fluid level

DONR

I installed a TREMEC transmission a couple of years ago. I used Silversports complete package, Transmission, Clutch, pressure plate, bellhousing, and driveshaft. I had a lingering oil leak at the back of my transmission I could not detect. I initially replaced the tail housing seal. Drove the car several miles. I still had oil on my crossmember. I was ready to try anything so I decided to check the drive shaft yoke. I use some RTV on the new driveshaft yoke I installed when I installed the TREMEC. The driveshaft come from Silversport. I took the front yoke loose from the driveshaft and put the RTV inside the loop of the yoke where the shaft was welded to the yoke. That fixed my oil leak.
I just wanted to share my issue after installing my TREMEC. I used Pennzoil Synchromesh oil.

irwiny

For mine, the TKO 600 older version speedometer cable's crimp from the connector to the black outside shielding is leaking. I read some people have added a o ring to inside of the adapter to prevent the oil from leaking into the speedometer cable. I had the TKO's fluid drained and refilled and was preparing to have the rear seal replaced, but my mechanic said it was the speedometer cable causing the leak and not the rear seal. The amount of fluid still in the TKO was fine. It still leaks but I adjusted the cable's position so that leak will go on the floor and not on the exhaust. If I'm correct the senor and speedometer cable is now two items. Mine is both speedometer and sensor as one piece. I need to either replace the speedometer sensor / cable or add the o-ring also need to correct the gear since my speedometer is about 10% off when I'm up for the task.