Seafoam For Manual Trany?
Seafoam For Manual Trany?
Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
Worth a shot, I can't imagine it not doing anything. I just used Simple Green when I had mine down, had no problems cleaning it out (though mine was pretty clean). The only problem I could see would be getting the Seafoam to stay on there long enough to do it's job, since it's designed to be combusted and clean out carbon, I'm not sure what effect it would have on the buildups in a tranny just being sprayed/poured on.
Post Fiend
Joined: Feb 2003
Posts: 6,940
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From: Eastern WA
Unless you have some ultra vintage tranny that used 90W or if by chance someone used 90W in a manual that should have used ATF, you should not have a *gummy* tranny. ATF (used in manual trannies for over 20 years now) is high in detergent and as such dissolves any crud that might tend to bond.
*Zakk, he's talking inside the tranny, not outside. Post +1.
*Zakk, he's talking inside the tranny, not outside. Post +1.
Posting Guru
Joined: Jan 2003
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Post Fiend
Joined: Jul 2005
Posts: 8,462
Likes: 4
From: Durant, OK (SOSU)
I knew he meant the inside.
I had about 138K on mine when I dropped it and it was clean inside...oily as all get out, but clean.
I had about 138K on mine when I dropped it and it was clean inside...oily as all get out, but clean.
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Post Fiend
Joined: Jan 2003
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From: Connecticut
Originally Posted by CowboyBilly9Mile
Unless you have some ultra vintage tranny that used 90W or if by chance someone used 90W in a manual that should have used ATF, you should not have a *gummy* tranny. ATF (used in manual trannies for over 20 years now) is high in detergent and as such dissolves any crud that might tend to bond.
P.S. Good to see you Bill!
Last edited by Rockledge; May 30, 2007 at 07:43 PM.
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Senior User
Joined: Dec 2004
Posts: 377
Likes: 0
Of course I meant the inside LOL 
The reason I wanted to use Seafoam is to see if that might fix my 2nd to 3rd gear grinding that I hate with a passion!
Every time I hear that grind reminds me that I need a new trany, and I still got hard shifting when cold in the morning, clutch is working good that was checked for 3 different mechanics, and one of them told me bad synchros,
which is common on the Rangers Mazda trans.
The reason I wanted to use Seafoam is to see if that might fix my 2nd to 3rd gear grinding that I hate with a passion!
Every time I hear that grind reminds me that I need a new trany, and I still got hard shifting when cold in the morning, clutch is working good that was checked for 3 different mechanics, and one of them told me bad synchros,
which is common on the Rangers Mazda trans.
Thread Starter
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Senior User
Joined: Dec 2004
Posts: 377
Likes: 0
I found the stuff , it is call Sefoam Transmission something?
but it is for Auto trany.
Anyway this Seafoam stuff is really good that I'm gonna use it to decarb my 1973-20hp two stroke Evinrude outboard, that's gonna be one heck of smoke show! Just imaging the sefoam plus the oil in the gas mix ol together trough the exhaust!
but it is for Auto trany.
Anyway this Seafoam stuff is really good that I'm gonna use it to decarb my 1973-20hp two stroke Evinrude outboard, that's gonna be one heck of smoke show! Just imaging the sefoam plus the oil in the gas mix ol together trough the exhaust!
