Th400 forward drum inner seal
#1
Th400 forward drum inner seal
Ok, so I've been trying to seat this piston in the forward drum off and on for a few days now. It's just not working out. So, my question is...is the inner seal necessary? I ask for a couple of reasons, one is..I know that the one on the direct drum isn't needed, as it only means a harsher engagement. Just wondering if the same is true for the forward drum. I'm sick of fighting it. Btw, I've tried the rubber band freezer method....lube...all of it.
#2
You are using an aluminum piston right? Inner seal lip side up?
I've never had a problem with the inner seal. Did you match up the number on it with the old one?
Try installing the piston with only one seal at a time, maybe it's not the inner giving you a problem?
I've never had a problem with the inner seal. Did you match up the number on it with the old one?
Try installing the piston with only one seal at a time, maybe it's not the inner giving you a problem?
Last edited by Jays_SSZ28; 12-26-2016 at 05:17 PM.
#4
You are using an aluminum piston right? Inner seal lip side up? And this may very well be the problem. I installed the seal lip down like the inner and outer on the piston.
I've never had a problem with the inner seal. Did you match up the number on it with the old one? And here's another mistake I've made, searched the garage, but can't find it. I think me having it upside down might be the issue.
Try installing the piston with only one seal at a time, maybe it's not the inner giving you a problem?
I've never had a problem with the inner seal. Did you match up the number on it with the old one? And here's another mistake I've made, searched the garage, but can't find it. I think me having it upside down might be the issue.
Try installing the piston with only one seal at a time, maybe it's not the inner giving you a problem?
#5
It's amazing how easy the piston fell into place with the drum seal facing the right direction......yea, I had it in backwards.