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Why did this happen in the input housing?

1.9K views 16 replies 8 participants last post by  AutoGear  
#1 ·
Upon disassembly of the the input housing assembly, I came across the expected burnt clutch and steel pack.

But I also noticed a dark brownish residue that looked like rust, and seemed baked onto everything from the 3-4 clutch piston to the 3-4 clutch apply up to the base of the forward clutch housing.

All of this covered parts were jammed in tight.

My question is why does this happen, is it because it was starved of ATF as the ball capsule was also clogged, as well as the 3-4 clutch pack not holding?
 

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#2 ·
I'd say your on to something with it being starved of fluid. It was not completely void of fluids but starved enough to allow alot of heat to build up and enough fluid was present to coke to the hot parts. Coking occurs in extreme heat where the oils actually vaporize, leaving a "baked on" residue.
 
#3 ·
sick476 thanks for the reply.

you said "...Cooking occurs in extreme heat where the oils actually vaporize, leaving a "baked on" residue." are we talking about the brown rust residue on the images?

just to clarify what is the process of burning up the 3-4 clutch pack that causes the cooking of the AFT, i mean how exactly does it happen?

I just want to clearly understand the process if anyone knows how it happens, especially in a 4L60e ?


Thanks again.)
 
#6 ·
old yukon said:
How do you know that's exactly what the mechanic did, after tranny began slipping especially while towing.

the bottle said it wont harm the transmission, how can i prove that harmed the transmission. How do you know that stuff wrecks the tranny ?

it is called decades of experience
 
#10 ·
it fixed it alright. I tried to talk someone out of buying a dodge with the 2.7 in it because of their WELL DOCUMENTED oiling problems. Car died 3mos later. His reason for purchase? "My brother-in-law said to use Mobil-1 and Sea-Foam occasionally" Now he's stuck with replacing a dead motor with a new one with the same achillies heel. Any mechanic in a can is too good to be true...DONT subscribe to marketing hype...it'll cost you more in the end
 
#11 ·
Lucas cost my neighbor about $1500 on his motor home. Against my better judgement I recommended Lucas power steering stop leak to try and slow down a power steering leak. The Lucas crap foamed and messes up hi hydra boost brake system which cost about $1500 to straighten out. I don't use any of the over the counter whatever in a can junk. :pain: If your car has a problem fix that problem and don't try any fixes in a can BS.

Vince
 
#12 ·
One of the curses of being the neighborhood fab/welder/mechanic is the same as being the doctor in the family. Everyone wants free advice on how to be cheap and when it breaks...its obviously your fault.

Vince I hope he didnt scream too loud. Sorry to hear that.

To the OP: You can probably turn it in on a reman as a core and absorb some of the cost. Where are you located
 
#13 ·
someone is suing the "mechanic in a can" companies. Ye Hay!!!

FTC Sues Speedway Motorsports and Oil-Chem Subsidiary
The Federal Trade Commission has filed suit in U. S. District Court seeking to halt false and misleading advertising for zMax auto additives and has asked the court to order refunds to consumers who bought the products. The agency alleges that enhanced performance claims for the product are unsubstantiated, that tests cited to support performance claims actually demonstrated that motor oil treated with zMax produced more than twice as much bearing corrosion than motor oil alone, and that the three different products - an engine additive, a fuel line additive and a transmission additive - were all actually tinted mineral oil. Read more its very interesting..... http://www.ftc.gov/opa/2001/02/zmax1.shtm