another C4 leak(s)

Lunar-tic · Aug 15, 2010

Gentlemen, why would this be leaking on a freshly rebuilt C4 that hasn't left the garage yet. Just put fluid in it a week ago and I think this is the only place it is leaking at this time. It is coming from the set screw looking device just forward of the kick down. Check this picture.

http://www.whatareyouworkinon.com/content/c4-leak

P.S. I tried to tighten the locking nut but it was already torqued down.

Viperwolf1 · Aug 15, 2010

That is the adjustment screw and locknut for the 2nd gear band. The nut has a silicone ring around the threads. If it's an old nut it's torn. New ones come with the rebuild/gasket kits. A fix is to remove the nut and put some RTV around the threads, then tighten it back down to about 40 ft-lbs. This has to be done without turning the set screw or you could lose the 2nd gear band adjustment.

Lunar-tic · Aug 15, 2010

Since the elite squad at Cottman transmissions rebuilt this thing and didn't replace this part, what are the odds that they didn't set the 2nd gear band adjustment?

markperry · Aug 15, 2010

william.jones2 said:
Since the elite squad at Cottman transmissions rebuilt this thing and didn't replace this part, what are the odds that they didn't set the 2nd gear band adjustment?

Since Cottman did the rebuild, don't they guarantee their work....take it back and tell them too fix it.

Viperwolf1 · Aug 15, 2010

william.jones2 said:
Since the elite squad at Cottman transmissions rebuilt this thing and didn't replace this part, what are the odds that they didn't set the 2nd gear band adjustment?

Easy adjustment if you want to just do it yourself. Remove locknut and turn the adjuster in (clockwise) until it seats with about 10 ft-lbs. Then turn it out 1 1/2 to 1 3/4turns. Goop up the locknut and reinstall while holding the setscrew still.

Lunar-tic · Aug 15, 2010

markperry said:
Since Cottman did the rebuild, don't they guarantee their work....take it back and tell them too fix it.

Roger, they have a 12 month warrantee but, I just stuck a crate motor in and I have a little ways to go before I can drive it to Cottman's. Got to keep it from bleeding out in my garage for now.

73azbronco · Aug 15, 2010

Obvious use of old sealing nut. Call them and have them give you a new nut if you feel confident you can R and R.

Lunar-tic · Aug 17, 2010

Thanks Viperwolf1, the "gooping it up" method appears to be working and should hold until I can get to Cottman and have them install a new nut and probable readjust the 2nd gear band.

another C4 leak(s)

Lunar-tic

Sr. Member

Viperwolf1

electron whisperer

Lunar-tic

Sr. Member

markperry

Bronco Guru

Viperwolf1

electron whisperer

Lunar-tic

Sr. Member

73azbronco

Bronco Guru

Lunar-tic

Sr. Member

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