Torque value:

[dbuck]

The rear cover gasket is leaking on my 149. I have a new gasket and 8 qts of hytran. In checking the service manual did not see any torque value to use on the bolts when buttoning everything back up, is there one? If so what pattern would you use ? Thank you for your time.

[johncub7172]

Identify the bolts you are using, there is a chart in the beginning of the service manual that will describe the carbon steel bolts, and give torque values.

[cubs-n-bxrs]

They should be 3/8ths 16 bolts grade 5 with a 33 ft/lbs torque.

[sawdustdad]

I know some folks don't like this approach, while others do the same as me, but I've resorted to applying a very thin coating of gasket sealant (RTV or similar) to both sides of the gasket to ensure a good seal. I was getting leaks about 50% of the time without using a sealant, and none when using it. Just be judicious in the application to avoid squeeze out, especially into the gear case interior. And I let it set up overnight before operating the tractor. Just my thoughts, YMMV.

[R Bedell]

I know some folks don't like this approach, while others do the same as me, but I've resorted to applying a very thin coating of gasket sealant (RTV or similar) to both sides of the gasket to ensure a good seal. I was getting leaks about 50% of the time without using a sealant, and none when using it. Just be judicious in the application to avoid squeeze out, especially into the gear case interior. And I let it set up overnight before operating the tractor. Just my thoughts, YMMV.

I do the same thing with the same results....

[clint]

I also use a small amount of grey (gray?) RTV sealant, for the amount of time spent cleaning everything up, and money on fluid it's a no brainer for me to use sealant to insure no leaks.

[Sam Mac]

Originally Posted by sawdustdad

I know some folks don't like this approach, while others do the same as me, but I've resorted to applying a very thin coating of gasket sealant (RTV or similar) to both sides of the gasket to ensure a good seal. I was getting leaks about 50% of the time without using a sealant, and none when using it. Just be judicious in the application to avoid squeeze out, especially into the gear case interior. And I let it set up overnight before operating the tractor. Just my thoughts, YMMV.

Same here but I let it sit for a day before I fill it with the rear with fluid. Permatex Ultra Grey is my go to silicone.

[gmbadgley]

Originally Posted by sawdustdad

I know some folks don't like this approach, while others do the same as me, but I've resorted to applying a very thin coating of gasket sealant (RTV or similar) to both sides of the gasket to ensure a good seal. I was getting leaks about 50% of the time without using a sealant, and none when using it. Just be judicious in the application to avoid squeeze out, especially into the gear case interior. And I let it set up overnight before operating the tractor. Just my thoughts, YMMV.

Most manufacturers don't even use gaskets for rears anymore, just RTV.

[J-Mech]

Originally Posted by gmbadgley

Most manufacturers don't even use gaskets for rears anymore, just RTV.

That's what I do. On any rear end gasket.

[Alvy]

We use a lot of anaerobic flange sealant at work. Loctite makes it and its red. Doesn't set up until there is no oxygen and then it hardens fast and seals like crazy. Although I would be cautious using a lot of this or rtv products on rear gasket because if it squishes out and gets into fluid it will clog up hydro stuff and filter I'm sure. And I'm thinking to use some pipe thread sealant on the fill plugs because that's where mine seem to seep a lot. Just my .02