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Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:00 pm
by roosmith
I've just changed my gearbox oil and gasket and on filling found I have a leak at the back. I haven't started it yet but it appears I've overtightened the gasket, as its buldging at the leak point. I'm draining it again but will that be it for that gasket? Can I reuse and can I stop the leak. I have released the pressure on it while I drain it. Thanks
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:22 pm
by Bob
Given the price of a gasket against potential problems I'd definitely fit a new one.
Just life.

Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:30 pm
by roosmith
It's not just the cost though, I don't have a spare, so won't complete it this weekend if I have to wait. Might just try it again tomorrow and see what happens. Kicking myself.
On the plus side I did manage the fuel pump seals and stopped the leak on that!
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:37 pm
by Bob
Worth a go, well done with the seals.

Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:47 pm
by Muzorewa
I have a new 2.5TD autobox gasket on a shelf. I know you're not just around the corner but I've done crazier things...
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:54 pm
by roosmith
Ha, crazy hey?! Do you think I will have ruined the old new one then? Where are you based Muz?
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 6:58 pm
by Muzorewa
Don't know whether you've cooked the new gasket but if you need another, we're only in Manchester. The rest of the Team are otherwise engaged tomorrow so it you need another...

Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 7:07 pm
by roosmith
Wow, Manchester for a gasket is a long way! You are crazy! Let's see if I can rescue this one or if someone interjects later with don't bother I've ruined it!
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 8:23 pm
by Northern Bongolow
try this vid.
https://www.youtube.com/watch?v=aVzMT6Mone0.
make your own gasket and set the bolts using the correct torque setting. its got to be auto transmission resistant sealer/gasket maker.
http://www.permatex.com/products-2/prod ... ker-detail
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 8:38 pm
by roosmith
I did use a remarkably similar method. I'm wondering about my sealant now, it's general purpose red gasket sealant.
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 8:42 pm
by Northern Bongolow
if you dont know you dont know, it is very fine though init tranny oil, no one say the obvious please.

Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 8:47 pm
by roosmith
Just checked, one of the uses is transmission. Will try again tomorrow.
Re: Leaking Gearbox Seal
Posted: Fri Mar 25, 2016 9:00 pm
by Northern Bongolow
think about this type of thing though when using a sealant on most applications.
https://www.youtube.com/watch?v=dVJ1n6ukj8Q
Re: Leaking Gearbox Seal
Posted: Sat Mar 26, 2016 10:31 am
by cmm303
I did mine yesterday! Didn't use any gasket sealer, just smeared both surfaces, after cleaning, with ATF. Best go and check for leaks!! Hmmm, used up all the decent weather though.
When offering it up I inserted all bolts loosely so the pan was really loose and I could fiddle the gasket. I then checked the gasket all the way round before pinching up and then tightening up, which took a surprising number of circuits round the bolts.
I found filling up to the right level hard. When the fluid is warmed up, and presumably a lot thinner, it was difficult to tell where it was on the dipstick.
Re: Leaking Gearbox Seal
Posted: Sat Mar 26, 2016 11:33 am
by roosmith
Right just dropped the sump again and I have spilt the gasket by overtightning.
Do any other gaskets fit I.e. ford ranger etc, that might mean I could pick one up locally?