Author Topic: C4 transmission leak at linkage  (Read 9255 times)

rickwinn

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C4 transmission leak at linkage
« on: June 26, 2009, 08:56:54 PM »
looks like it's leaking directly from the linkage itself.  before I take it apart, is there a gasket for the linkage?

rmodel65

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Re: C4 transmission leak at linkage
« Reply #1 on: June 26, 2009, 10:32:32 PM »
there is an O ring

champion2211

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Re: C4 transmission leak at linkage
« Reply #2 on: June 27, 2009, 09:45:34 PM »
I have a C4 also and mine leaks in the same place as well as the pan. I have replaced the o ring but thats not a complete fix. Maybe two o rings might do it, or ad a flat washer to take up the difference.  Do you have a tach on yours? I do and my rpms at 70 with a 3.00 rear end mine is turning 3100. To me that sounds a little too high. Hope this helps.

Jeff1967

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Re: C4 transmission leak at linkage
« Reply #3 on: June 27, 2009, 11:27:02 PM »
Well, I can relate to the C4's pan leaking, I have tried several time to get it stopped in my 67' which includes 3 different gaskets with sealant and without. I just bought a new pan and a thicker poly gasket from NPD spent a couple hours bolting it up today. This time I am trying black RTV gasket maker and the new parts. I am letting the pan and RTV set up all night before I add the ATF tomorrow, If it does not seal this time it is going to a transmission shop and they can tackle the problem, I have had a gut full of this problem.

Will keep you posted ,

JJ

rmodel65

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Re: C4 transmission leak at linkage
« Reply #4 on: June 28, 2009, 05:00:48 AM »
I have a C4 also and mine leaks in the same place as well as the pan. I have replaced the o ring but thats not a complete fix. Maybe two o rings might do it, or ad a flat washer to take up the difference.  Do you have a tach on yours? I do and my rpms at 70 with a 3.00 rear end mine is turning 3100. To me that sounds a little too high. Hope this helps.


nah 3000rpm @70 sounds about right for a 3 speed tranny, when i had my AOD in my 91 i had 2.73:1 gears and the aod(cant remember the OD ratio maybe .86:1) my rpm were right around 23-2400 at 70 iirc

the 3spd final gear ratio is 1:1

Tim175

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Re: C4 transmission leak at linkage
« Reply #5 on: June 28, 2009, 11:07:41 AM »
I had the same problem. Pore about a cap full of brake fluid into the tranny and it will stop the leak. It works perfectly.

Jeff1967

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Re: C4 transmission leak at linkage
« Reply #6 on: June 28, 2009, 01:20:28 PM »
Glen,

What do you think about the remedy above?

JJ

rmodel65

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Re: C4 transmission leak at linkage
« Reply #7 on: June 28, 2009, 02:28:53 PM »
brake fluid makes rubber expand, ive never used it in a tranny but its common to use in power steering systems, its such a small amount it shouldnt hurt anything

Soaring

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Re: C4 transmission leak at linkage
« Reply #8 on: June 28, 2009, 03:15:08 PM »
I'm not sure a cap full would do any good, but I have heard of it being done. I would use a product called  Lucas stop leak instead. 

Tim175

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Re: C4 transmission leak at linkage
« Reply #9 on: June 28, 2009, 03:21:04 PM »
It worked wonders on my car, and also a friend of mine tried it after i did and it worked for him. But i don't know

Soaring

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Re: C4 transmission leak at linkage
« Reply #10 on: June 28, 2009, 03:27:05 PM »
Only a cap full, huh?  That is such a small amount, but if it works, it works.  There's more than one way to skin a cat.   ;D

Tim175

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Re: C4 transmission leak at linkage
« Reply #11 on: June 28, 2009, 03:29:44 PM »
Yeah i did not think it would work when i tried it but it did so...but i don't know if it will work for everyone :D He would probably just be better off trying the product that you suggested for him, i was just suggesting a simple home remedy that i discovered that seemed to work for me :)

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Re: C4 transmission leak at linkage
« Reply #12 on: June 28, 2009, 03:39:36 PM »
That's good information to store in my pea picking brain, Tim.  Thanks for the tip. 

Jeff1967

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Re: C4 transmission leak at linkage
« Reply #13 on: June 28, 2009, 04:21:46 PM »
I wanted to bounce it off a few other members before I tried it to see if there were any cautions before hand. The jury is still out on my work, I re-filled the tranny pan and took the car for a drive now I am letting her sit over night before I inspect for seepage.

Thank you for the suggestions.

Jeff

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Re: C4 transmission leak at linkage
« Reply #14 on: June 28, 2009, 05:51:47 PM »
Hell Jeff, if there is some leakage in the morning, just set the car on fire and go out and buy you a new Cobra.   ;D

Jeff1967

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Re: C4 transmission leak at linkage
« Reply #15 on: June 29, 2009, 09:30:30 AM »
If it weren't a classic I would consider it !! Have not crawled under her yet this morning. I do like those new Shelby's though. If I were a retired guy living the dream on a golf course I would have one of those fire breather Cobra's in the garage !!!!

JJ

Soaring

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Re: C4 transmission leak at linkage
« Reply #16 on: June 29, 2009, 03:15:24 PM »
aH! My Mach1 has all the power this old man can handle. 

Jeff1967

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Re: C4 transmission leak at linkage
« Reply #17 on: June 29, 2009, 03:53:28 PM »
All I can afford as a second vehicle is a Yugo, she is a beauty though....

Soaring

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Re: C4 transmission leak at linkage
« Reply #18 on: June 29, 2009, 05:04:16 PM »
Did you read where Fiat is bringing their tiny cars to be sold at Chrysler dealers by 2011?   Also, the diesel engines that the big 6 have been putting in their vehicles  will no longer be offered after this year.  So, if you want an '09 250 PSD Ford pickemup you best get one now.  See if this video works. 
http://www.autonews.com/article/20090629/VIDEO/306299884/1219

Jeff1967

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Re: C4 transmission leak at linkage
« Reply #19 on: June 29, 2009, 05:50:07 PM »
Yea,
I have been seeing a lot of those cheater cars lately, that is, the kind I would not send someone I didn't like out driving in one. Sadly and god forbid, there will be a "green person" get cracked by a 16 wheeler and bring a lawsuit against Freightliner because of the highway mis-match....

Also, as it pertains to pickumtrucks... Take a look at my profile and see what my daily driver is !! Sorry, I have owned several different brands including Ford full sized trucks and two Dura Max's, got to say the best truck I have ever driven and owned.... At least it's American...Kinda...... If it helps I still own ( and have for 22 years) an 83' Ranger as my farm truck and it is the best long term vehicle I have had.

 

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