TH350 kickdown cable leak again
#1
TH350 kickdown cable leak again
I know there are many threads about this but I have read through them and haven't found a definitive answer. I am trying to determine the correct o-ring size for the cable tube to transmission. I have tried a couple of sizes and still have a leak on my 72. The cable I have had a plastic tube and I don't want to overtighten it because I fear it will crack. On my 70 it has a metal tube and I have never had a problem with a leak. My only choice now is trial and error by increasing the o-ring size and see what happens. Any help would be appreciated. Btw I cannot use the tophat seal, have checked or replaced all other possible leak sources and seals and I don't want to cap it off and downshift manually.
Thanks
Thanks
#2
I'm not really sure but it seems I used 2 orings on it, Or maybe that was on the dipstick. I had a bunch of leaks from kickdown cable, dipstick, shift linkage, speedo cable, all of them. I finally got them all fixed but it took a few tries. At first I thought my repair hadn't worked until I found it was another spot leaking. Believe it or not, I finally dusted insect spray (used for tomato plants, etc.) on bottom of trans, that shows up where it's coming from. Sounds crazy but works good!
#3
Are you sure the plastic end of the cable isn't cracked where it goes into the trans? Are you sure there isn't a groove in the hole in the trans case? And tightening it more won't seal it. The O-ring slides into the trans case. More torque on the bolt doesn't change how it seals. The bolt just needs to keep the tube from backing out of the case.
#4
Where are you getting the o-rings? If the leaks was sealed up snd then began to leak again, I question if the o-ring you are using is compatible with transmission fluid.
Your local transmission shop probably has or can order the proper o-ring. But as others mentioned, make sure the housing isn’t cracked.
Your local transmission shop probably has or can order the proper o-ring. But as others mentioned, make sure the housing isn’t cracked.
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