Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Fri Jan 02, 2026 1:28 am

All times are UTC-08:00




Post new topic  Reply to topic  [ 6 posts ] 
Author Message
 Post subject: 904 Leak
PostPosted: Sun Apr 10, 2011 9:49 am 
Offline
TBI Slant 6
User avatar

Joined: Sat Jul 22, 2006 12:50 am
Posts: 243
Location: Central Valley, California
Car Model:
I've had some fluid on the pan since I got the car...not a ton, but some.

Recently converted the solid steel lines to flex.

Drained the converter, dropped the pan, cleaned the screen and new gasket.

Refilled with 6 US Qts. Went through the start up procedure ending in neutral.

Drove it 3 or 4 miles and parked it.

I know I am 1/2 Qt shy of full per the FSM.

Yesterday noticed a good amount of fluid leaked out over a week or so.

Appears to be coming out of the bell housing.

All new lines are clean and dry.

Skimmed through the FSM..trannys and TQ's are not in my repetoire.

Ideas?

Any procedures a novice might have success at?

Thanks for responding.

_________________
Image
Super Six Conversion Stromberg


Top
   
 Post subject:
PostPosted: Sun Apr 10, 2011 12:36 pm 
Offline
Turbo Slant 6

Joined: Sat Apr 02, 2011 12:58 pm
Posts: 569
Location: New Jersey USA
Car Model:
There are two common leak points in the bellhousing area;

1) the seal between the torque convertor & the front pump is old/ worn & leaks (aka "front pump seal")

2)The bushing that supports the neck of the torque convertor in the pump is worn. This allows fluid to drain out of the convertor when the car sits & it overflows out the trans vent (I think that is located on the pump as well) . A worn bushing doesn't help seal life either, which can cause it to leak.

Either repair requires you to remove the trans from the car, & you have pull the pump off to do the bushing.

_________________
63 Valiant Wagon
225 - 4 bbl


Top
   
 Post subject: ,
PostPosted: Mon Apr 11, 2011 4:29 pm 
Offline
Turbo Slant 6

Joined: Sat Aug 09, 2008 5:01 pm
Posts: 516
Location: Taneytown, MD
Car Model:
Check for a loose drain plug in the torque coverter too.

_________________
V8?? We don't need no stink'n V8!! Image


Top
   
 Post subject:
PostPosted: Mon Apr 11, 2011 4:54 pm 
Offline
Guru
User avatar

Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
Car Model:
Kick-down lever seal is a common leak point on 60-65 904s
(A common leak point on all Torqueflite trannsmissions, for that matter)
And don't over-look the dip stick tube o-ring, those can leak.
DD


Top
   
 Post subject:
PostPosted: Mon Apr 11, 2011 7:26 pm 
Offline
TBI Slant 6
User avatar

Joined: Sat Jul 22, 2006 12:50 am
Posts: 243
Location: Central Valley, California
Car Model:
Another member informed about the kickdown o-ring.
I believe it, as there was fluid up on top.
I cleaned as best I could when I was under there.

I'm kind of wondering whether or not it was fluid that got into the bell housing when I drained the TQ.
Seems that you would have to jack the back of the car up when draining to avoid it.
I wiped it out as best I could but kind of tough getting anything (rag) under the teeth on the ring gear.

The TQ drain plug showed no signs of leak when I removed it, and I torqued it to specs when I put it back in.
I've got the front end jacked up at the moment...we'll see when I put it back down.

Thanks all

_________________
Image
Super Six Conversion Stromberg


Top
   
 Post subject:
PostPosted: Thu Apr 21, 2011 9:17 pm 
Offline
EFI Slant 6
User avatar

Joined: Wed Feb 02, 2011 12:00 pm
Posts: 346
Location: Tustin, CA
Car Model: 1965 Barracuda 'S' auto
Itll only leak from the sector lever and dipstick O-ring when it sits. Under power, the fluid level is under these points. The "no yo-yo" kit from Trans-go stops the fluid drainback from the convertor that might help, but seals are the correct fix.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 6 posts ] 

All times are UTC-08:00


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited