torque on 727 trans bolts

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martin53

martin53
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How much do I tourqe the pan bolts on a 727 trans using a rubber gasket and do I use silicone sealant
 
I don't see a value anywhere for rubber, but if I remember right the factory gasket value is 12-13 inch lbs. (but that is for cork)

You could start there and if you have the rubber/steel gasket tighten a little more if it looks like it wants to leak.
 
just snug it until it starts to bulge, then stop.
 
TrailBeast said:
I don't see a value anywhere for rubber, but if I remember right the factory gasket value is 12-13 inch lbs. (but that is for cork)

You could start there and if you have the rubber/steel gasket tighten a little more if it looks like it wants to leak.
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Trailbeast, I think you meant foot pounds of torque. The manual calls for 150 inch pounds.
 
1967 'cuda said:
Trailbeast, I think you meant foot pounds of torque. The manual calls for 150 inch pounds.
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Yes, foot lbs.
Damn, that woulda leaked a little (maybe)

Personally, I would have tightened them until it felt good but what feels good to me might be way tight or way loose to someone else.
 
They ship the pans now with a black rubber gasket that is crap , it is hard rubber with zero squish to it not the steel lined type , my new deep pan had to be straightened and that crap gasket still wanted to seep , a little RTV on the pan side can add some squish but silicone on rubber is usually a recipe to fail eh ! find a cork one if you can they are pretty cheap and reusable in most cases .
 
you should really try the new 727 gasket,i will never use anything else again.
 
Just put some of "the right stuff" on the gasket.

Snug the bolts just until the sealer starts to squeeze out a little.

Then come back when the sealer is done curing and snug them down until the gasket buldges a little.

Don't over tighten it to where the gasket is start to pop out.

And never use silicone sealer on a transmission , the atf eats the silicone and turns it to jelly.

"The Right stuff " sealer is more expensive but is designed for use with ATF

I use it on everything but my sandwiches
 
If your pan is straight, the trans case doesn't have any issues and you use a good quality gasket you don't need to slop it all up with sealer that's a royal PITA to clean off if you have to take it back apart again... I used the cork gaskets for 25 yrs. with very little leakage issues. The new style rubber and steel core gasket they use on the newer Rams and Dakotas is fantastic and all I use now. Since you have a 727 you'd need to use the one made for the A518. Cost less than $20 at Summit. I torque them to 150 inch lbs. in 50 lb increments
 
well said Fishy68 I was referring to the hard rubber gasket that they ship with pans, at least thats what was in the deep pan kit I bought for my 904 a couple of months ago , it didn't have a steel core just hard rubber and was garbage even after straightening the pan it was seeping , put the cork back on and presto dry as a bone .
 
cannucky said:
well said Fishy68 I was referring to the hard rubber gasket that they ship with pans, at least thats what was in the deep pan kit I bought for my 904 a couple of months ago , it didn't have a steel core just hard rubber and was garbage even after straightening the pan it was seeping , put the cork back on and presto dry as a bone .
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Yeah I figured what's the ones you meant. Them plain rubber ones are garbage IMO
 
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