strange c4 leak when car has been sitting

enferno

Member

Jun 20, 2006

418

2

16

Aug 24, 2011

#1

• Aug 24, 2011

• #1

i have a '66 coupe, 302 and a rebuilt c4 (10k miles on it or so). everything runs great, however, if i don't drive the car for 10-14 days (i work from home so not uncommon) the c4 will dump fluid on the driveway. this is ONLY when the car hasn't been driven or moved in about ~2 weeks. what would cause this? it never leaks a single drop when it's driven regularly, and i've crawled under to double check. any thoughts?

 

Realmongo

I prefer to be called "Evil Genius"

Founding Member

Oct 10, 2001

2,468

86

99

Western Mass

Aug 24, 2011

#2

• Aug 24, 2011

• #2

That's not unusual for these older transmissions. The old seals tend to dry and shrink up from lack of use, but then swell up once they have fluid circulating again.

 

hipo_p51

Member

Jun 13, 2008

199

2

19

Sep 1, 2011

#3

• Sep 1, 2011

• #3

it more than likely leaks out the tail shaft seal. i have seen this on my own cars. just drive it more often, problem solved.

 

hungrymonkey

White by Birth, Trash By Choice

Founding Member

Nov 29, 1999

3,077

12

108

Oregon.

Sep 1, 2011

#4

• Sep 1, 2011

• #4

The last 3 C4's I have had, leaked from the tail shaft seal. Usually when I parked on an incline and not driven them in awhile.

Although mine seemed to leak a bit faster than a couple of weeks.

 

Realmongo

I prefer to be called "Evil Genius"

Founding Member

Oct 10, 2001

2,468

86

99

Western Mass

Sep 1, 2011

#5

• Sep 1, 2011

• #5

Another common leak point is the seal for the shift lever.