Ford Sierra/Sapphire/RS500 Cosworth This forum is for discussion of all things pertaining to the Ford Sierra Cosworth.

4X4 Cosworth gearbox issues after rebuild.

Thread Tools
 
Search this Thread
 
Old 23-07-2018, 09:07 PM
  #1  
Ollie L
Wahay!! I've lost my Virginity!!
Thread Starter
 
Ollie L's Avatar
 
Join Date: Oct 2009
Location: Brum
Posts: 87
Received 3 Likes on 3 Posts
Default 4X4 Cosworth gearbox issues after rebuild.

Evening all,

I've just had my gearbox rebuild and it's drives mint and selects gears perfect on the twisty stuff, however after a long straight run say like on motorway if I come off and to a stop I cannot select a gear.

I have to pretty much ram it through the dash to try select first & second is a pain as well. I had to pull away from a set of lights earlier in third! Then come out later it's fine again.

Has anybody had similar issues like this? as its doing my head in!

Thanks all
Old 24-07-2018, 09:40 AM
  #2  
Caddyshack
10K+ Poster!!

 
Caddyshack's Avatar
 
Join Date: Mar 2013
Location: Guildford
Posts: 10,841
Received 1,031 Likes on 944 Posts
Default

If a company rebuilt I I would take it back.

It sounds odd that fine from cold. If you are ramming it home you may bend the selector forks.
Old 24-07-2018, 11:12 AM
  #3  
turbotrev
Advanced PassionFord User
 
turbotrev's Avatar
 
Join Date: Jul 2003
Location: Sutton
Posts: 2,051
Received 89 Likes on 85 Posts
Default

Try changing the oil to something else, give the guys who rebuilt it a ring and see what they recommend grade wise

Cheers Paul
Old 26-07-2018, 07:29 AM
  #4  
Ollie L
Wahay!! I've lost my Virginity!!
Thread Starter
 
Ollie L's Avatar
 
Join Date: Oct 2009
Location: Brum
Posts: 87
Received 3 Likes on 3 Posts
Default

Originally Posted by Caddyshack
If a company rebuilt I I would take it back.

It sounds odd that fine from cold. If you are ramming it home you may bend the selector forks.

I thought it was odd to, it's like its overheating something in there on a long run.


Originally Posted by turbotrev
Try changing the oil to something else, give the guys who rebuilt it a ring and see what they recommend grade wise

Cheers Paul

The've put in an ATF fluid that they were recommended to use. Spoken to Opie and they have advised me a different grade (75w90) so i shall try that and see if any better.
Old 03-08-2018, 07:18 PM
  #5  
The Crocodile Hunter
Too many posts.. I need a life!!
 
The Crocodile Hunter's Avatar
 
Join Date: Sep 2009
Location: -
Posts: 854
Received 23 Likes on 19 Posts
Default

Atf is definitely the stuff for the 2wd t5 box

not sure about the 4x4 box, but I'm sure it's not atf?
The following users liked this post:
Ollie L (17-08-2018)
Old 03-08-2018, 07:43 PM
  #6  
ajamesc
cossie fan (unluckerly)
 
ajamesc's Avatar
 
Join Date: Nov 2009
Location: hampshire
Posts: 9,791
Received 435 Likes on 393 Posts
Default

If you turn the car off dose it go into gear?
Old 06-08-2018, 10:32 AM
  #7  
dojj
Resident Wrestling Legend
iTrader: (3)
 
dojj's Avatar
 
Join Date: May 2003
Location: Little India
Posts: 50,018
Received 258 Likes on 221 Posts
Default

it'll be the oil

the mt75 needs a very specific oil that is no longer listed by ford
try that first
The following users liked this post:
Ollie L (17-08-2018)
Old 17-08-2018, 08:27 AM
  #8  
Ollie L
Wahay!! I've lost my Virginity!!
Thread Starter
 
Ollie L's Avatar
 
Join Date: Oct 2009
Location: Brum
Posts: 87
Received 3 Likes on 3 Posts
Default

Originally Posted by dojj
it'll be the oil

the mt75 needs a very specific oil that is no longer listed by ford
try that first
Yes it turns out it was the oil grade, put in 75 / 90w and its spot on. Its now usable again!

Thank you everyone for help on this. I'm a happy Cossie owner again!
The following users liked this post:
dojj (19-08-2018)
Old 17-08-2018, 10:14 PM
  #9  
cossynut2
PassionFord Post Whore!!
 
cossynut2's Avatar
 
Join Date: May 2013
Location: Holbury,Southampton
Posts: 4,562
Received 393 Likes on 358 Posts
Default

Originally Posted by Ollie L
Yes it turns out it was the oil grade, put in 75 / 90w and its spot on. Its now usable again!

Thank you everyone for help on this. I'm a happy Cossie owner again!
Glad for your sake it was a simple fix.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
london_chris
General Car Related Discussion.
6
23-12-2016 08:42 AM
M K
Ford RS Cosworth Parts for Sale
7
31-07-2015 02:09 PM
Mickyflint
Pictures, video & Photoshop Forum
34
23-04-2013 07:23 AM
pacificzetecturbo
General Car Related Discussion.
3
17-07-2007 04:55 PM



Quick Reply: 4X4 Cosworth gearbox issues after rebuild.



All times are GMT. The time now is 04:23 PM.