| Re: [GMCnet] My tranny woes [message #265396] |
Mon, 03 November 2014 20:43 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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I've been chasing a tranny fluid leak for over a year. Can't find it for nothing. I lose about 3/4 of The Qt in 1,000 miles. It's on the drivers side. The frame of my coach will never rust because it's always oily.
Sent on a Sprint Samsung Galaxy S® III
-------- Original message --------From: Bob de Kruyff Date:11/03/2014 8:28 PM (GMT-06:00) To: gmclist@temp.gmcnet.org Subject: Re: [GMCnet] My tranny woes
kerry pinkerton wrote on Mon, 03 November 2014 18:31
> Some of you may remember that I lost my 1 year old Manny Tranny last month due to low fluid. I suspected my dipstick and today I started getting
> ready to pull the tranny tomorrow. When I removed the dipstick tube I found this:
>
> http://www.gmcmhphotos.com/photos/misc/p56393-cause-for-my-tranny-fa.html
>
>
>
> Obviously, about 1/4 of the O-ring is just plain missing.
>
> Sigh. My bad, my fault, all on me.... :( :blush: Nothing at all to do with Manny other than him selling a transmission to a dumbass.
>
> I have no explanation for why I didn't take 10 minutes and pull the dipstick tube out last summer when I noticed a big transmission fluid leak.
> Could have saved myself a chunk of change and lot of work. :blush:
>
> If I recall correctly, the O-ring was just a basic Harbor Freight O-ring from an assortment box. It should have been high temp Viton.
> Regardless, the broken O-ring let fluid run out of the tranny when the converter leaked down. The fluid is definitely burned. On a positive note,
> there is no transmission fluid in the final drive. I was concerned that the mating seals on the 3.21 might have failed.
>
> And when I was removing the cooler lines, one of them self destructed...guerrrrrrr
>
> I think I understand why the tranny temp sensor never got hot. There wasn't enough fluid in the pan to heat it up.
>
> I'll get the tranny out tomorrow and next week take it down to Ken Hendersons and pick up one of the new Manny Trannys that Manny built at Ken's
> and left there for us poor unfortunate souls in the South that might need one.
>
> So, what can I do to keep this from happening again. I haven't talked to Manny about this but I'm thinking there is bound to be some way to
> 'know' when the fluid is low while driving. Yes, I'm going to implement a front access dip stick but what if something happens while driving?
> Loose an oil cooler line or ?? It sure would be nice to have a gauge or warning system of some type.
>
> Ken mentioned there is a diagnostic pressure port on the side. Perhaps a gauge or sensor there would provide an indication of falling levels.
> Or, new cars have a sensor in the side of the pan that detects when the oil level is low and turns on a 'low oil level' message. I don't know but
> there is bound to be something. Isn't there?
That seal is way above the normal fluid level isn't it? I know there is some level of churning going on but is it really the cause?
--
Bob de Kruyff
78 Eleganza
Chandler, AZ
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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