NO POWER in REVERSE!!
Thread Starter
Heel & Toe
Joined: Sep 2009
Posts: 19
Likes: 1
From: Tonga, south pacific! far from parts!!
NO POWER in REVERSE!!
Hello Gentlemen
I have hardly any power in reverse!
Example- If I put a VCR tape behind the tire it could not reverse over it, its that weak!!
But it will move if its on a flat surface but only at a slow walking speed, if I give it gas it just makes a wizzing sound from behind the gearbox.
The clutch works fine.
I disconnected the automatic overdrive on the car also.
Its a 1986 with 150 thousand miles on it.
Please help if you know anything about this
Thanks
Ben
I have hardly any power in reverse!
Example- If I put a VCR tape behind the tire it could not reverse over it, its that weak!!
But it will move if its on a flat surface but only at a slow walking speed, if I give it gas it just makes a wizzing sound from behind the gearbox.
The clutch works fine.
I disconnected the automatic overdrive on the car also.
Its a 1986 with 150 thousand miles on it.
Please help if you know anything about this
Thanks
Ben
Last edited by Left Hand Drive; Oct 11, 2009 at 08:08 AM.
Racer
Joined: Dec 2001
Posts: 418
Likes: 1
From: Henryville PA
I'm not understanding this very good. I assume this is an automatic transmission because you mention overdrive, but then you say the clutch is good, what clutch are you referring to? also O/D will have absolutely no effect to your reverse at all.
If you hear weezing then your tranny is slipping, try checking the fluid see that it's on the full mark and not discolored also smell it, if it smells burnt then your tranny is giving up.
If you hear weezing then your tranny is slipping, try checking the fluid see that it's on the full mark and not discolored also smell it, if it smells burnt then your tranny is giving up.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
Race Director
Joined: Oct 2005
Posts: 11,772
Likes: 177
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
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I'm not understanding this very good. I assume this is an automatic transmission because you mention overdrive, but then you say the clutch is good, what clutch are you referring to? also O/D will have absolutely no effect to your reverse at all.
If you hear weezing then your tranny is slipping, try checking the fluid see that it's on the full mark and not discolored also smell it, if it smells burnt then your tranny is giving up.
If you hear weezing then your tranny is slipping, try checking the fluid see that it's on the full mark and not discolored also smell it, if it smells burnt then your tranny is giving up.
Borg Warner ST10 manual gear box with a Doug Nash overdrive unit mounted on the rear of the transmission.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
several ways to fix...'rebuild' of o/d unit with new friction discs/gaskets/etc is most common...not a complicated procedure but new parts must be purchased...'spring loading' of 'direct' (non-overdrive) section requires close attention to prevent personal injury/poor op after rebuild, otherwise NOT 'brain surgery", but shops with experience with this unit are limited...follow the Service Manual if DIY.
6-speed conversion using vette/camo oem transmissions is NOT a simple bolt-in, gives little increase in durability, effectively just adds a 'second higher o/d ' than is of little use (other than passing oem emissions/'cafe' lab tests)...aftermarket transmissions are expensive and have very limited service/repair available.
Last edited by redrose; Oct 11, 2009 at 09:32 PM.
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Thread Starter
Heel & Toe
Joined: Sep 2009
Posts: 19
Likes: 1
From: Tonga, south pacific! far from parts!!
Drifting
Joined: May 2006
Posts: 1,428
Likes: 7
From: Chewelah Wa
It's been awhile since this happened to me, (10 years) and I believe that when this happens, something let go that is held in place by the case, which means that your OD is no longer serviceable. There is a place that specializes in the rebuild of these units, they even have a website that may answer all of your questions. I know it has changed hands since I have been there, I would do a google search. SK speed? I found a 88 unit for my 85 on ebay for less than 500 bucks and it has performed flawlessly. The later units were much improved over the 84-85 ones. This is a cheaper option compared to aftermarket.....even a rebuilt Nash exchange is only about 1200 bucks. These pop up occasionally on the for "sale section" of this forum, also.
