I just fixed a transmission gear problem and am reassembling my B7100 manual transmission. Cleaning off the old gaskets was a PIA. It looks like glue was used in addition to the gasket. Anybody know what this is or better yet why the factory would use glue or something like that on this cover. The differential cover didnt have this stuff on it.
Glue on Transmission Cover
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85Hokie
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Could that old "glue" be a gasket maker or gasket sealer?
I would think a good bit of form-a-gasket would seal all of it!
Don't know about that but,, GM has started useing a pan gasket on the chevy trucks that fuses itself to the transmission pan. It doesn't stick to the aluminum transmission case. It's so bad that we have built a pan with very soapy water and we turn the trans pan over and lay it in the soapy pan and let it sit for days. We keep at least 2 already clean for immediate need.
North Idaho Wolfman
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They used a lot of different sealers on these older units.
Now I just use a light coat of RTV on the gaskets to seal them.
They used a lot of different sealers on these older units.
Now I just use a light coat of RTV on the gaskets to seal them.
'Blue Glue'.......
A lot of kubota stuff is sealed by their liquid gasket only. The machining is precision enough that the liquid gasket is all that's needed. I think the part number for at one of the gaskets is 70000-73764. The service manual tells you which part # to use for which tractor and which parts are in question. When fiddling with parts that are sealed with liquid gasket, one must clean every speck of the old stuff off, and that includes the stuff that's IN the channels if the part(s) have a channel for the sealant. That's the worst part to me. I use a pick, some acetone (softens it up a little) and lots of patience. Then once all the old stuff is out, clean it up really well, including all of the oil residue...and when I am doing one, I like to make SURE that all of the oil is out of the cases so that it can't dribble out while the liquid gasket is being applied and part(s) reassembled.
If you do it that way, they'll never leak.
A good aftermarket liquid gasket is any of the Ultra silicones from Permatex. I like gray and black depending on the application but also copper for other higher heat applications. None have any offensive odors which is appealing to me since my nose is very sensitive. I like to paint the squished out sealants with the proper color paint after doing a reseal; makes for a more professional looking repair and if for some reason later on down the road the owner decides to sell or trade it, a potential buyer doesn't have to glare at a bead of squished out orange silicone and wonder what was done to it and why.
If you do it that way, they'll never leak.
A good aftermarket liquid gasket is any of the Ultra silicones from Permatex. I like gray and black depending on the application but also copper for other higher heat applications. None have any offensive odors which is appealing to me since my nose is very sensitive. I like to paint the squished out sealants with the proper color paint after doing a reseal; makes for a more professional looking repair and if for some reason later on down the road the owner decides to sell or trade it, a potential buyer doesn't have to glare at a bead of squished out orange silicone and wonder what was done to it and why.
North Idaho Wolfman
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You could be right. I've never used it on any gasketed joints.I don't think you can use Anaerobic Sealers when you also use a paper gasket.
Would you put that in simple terms please????
I know it makes dandy joint sealant on air piping,I use the Detroit Diesel brand (DDEC). Seems as though Detroit Diesel engines are 'glued' together with it...
It's fast curing and non corrosive. Pipe threads and closely matched surfaces keep air and oxygen out. Then you need metal ions, such as steel, copper, aluminum, to cure. So no, it can't be used with gasket material that is non-metallic.
Besides air piping, it is also used for fire sprinkler fittings.
Jim... Kind of reminds me of Locktite 272 high strength threadlocker, even smells like it but is a lot cheaper (by volume) that 272. Same color too, at least the DDEC stuff is, translucent red.
One disadvantage of the anaerobic sealants is that they don't do well with gasoline. Also there can't be much gap between materials.
Each application has a temperature, pressure, cure chemistry, fluids compatibility, etc. That's how I end up with so many 10-year-old half tubes of old goops waiting to be thrown out.
Each application has a temperature, pressure, cure chemistry, fluids compatibility, etc. That's how I end up with so many 10-year-old half tubes of old goops waiting to be thrown out.
With me, usually the half goops get hard in the tubes anyway. The exception is the sealant and Locktite. Don't know how many tubes of blue glue I've tossed and coagulated PVC cenent too.
Real careful with Locktite at 200 bucks a bottle, (250 ML).
I get my anaerboic sealant for free from the dealership. Don't know how much it costs but it's probably not cheap either.
Real careful with Locktite at 200 bucks a bottle, (250 ML).
I get my anaerboic sealant for free from the dealership. Don't know how much it costs but it's probably not cheap either.