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Topic: Cosworth Auto Box whining (Read 1122 times) |
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Andy_Mac
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Cosworth Auto Box whining
« on: Mar 22nd, 2009, 12:06am » |
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Hello there,
The autobox on my cosworth 1996 is whining in first gear and sometimes hesitates when pulling off,
There was a leak on the oil cooler and the box ran dry  is there anything i can do to quieten the noise down?
also will a box from a 2.3 fit into my cosworth.
Regards
Andy
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Tompion
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1997 2.3 Ultima estate.
Posts: 2918
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Re: Cosworth Auto Box whining
« Reply #1 on: Mar 22nd, 2009, 12:44am » |
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Hi Andy
Not advisable to fit the 2.3 box as it has less clutch plates.
Obviously running out of fluid is not good & there’s no telling what damage may have occurred.
A blocked filter can make it whine.
Did you change the filter when you refilled the box?
In which case did you check the length of the bolt, as the later filters need the bolt shortening or packing out else it won’t seat correctly and can let air in.
Have you used the correct fluid & checked the level when it’s hot after a run with the engine still running, parked on a level surface move the selector through all positions then check the level.
Dave
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Andy_Mac
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Re: Cosworth Auto Box whining
« Reply #2 on: Mar 22nd, 2009, 12:57am » |
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Thanks for your help Dave 
I have not had a look at the filter yet but will do tomorrow, will I need a new filter or can I clean the old one, also will I need any gasgets to do the job.
The noise only happends in first gear, when it shifts into 2nd there is no sound and the gear change is smooth.
Also when cold the box slips badly on take off.
Andy
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wumpster
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1996 2.5TD Scorpio Exec
 
Posts: 155
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Re: Cosworth Auto Box whining
« Reply #3 on: Mar 22nd, 2009, 1:11am » |
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mine was noise in first on my old 2.0 but it lasted 2 years m8
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Tompion
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1997 2.3 Ultima estate.
Posts: 2918
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Re: Cosworth Auto Box whining
« Reply #4 on: Mar 22nd, 2009, 12:53pm » |
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Details of changing the filter & what you need here (prices out of date):
http://www.fordscorpio.co.uk/aboxfilters.htm
A messy job unless you draw the oil out via the dipstick tube first.
Dave
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Andy_Mac
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Re: Cosworth Auto Box whining
« Reply #5 on: Mar 22nd, 2009, 3:02pm » |
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Jacked the car up today and found out what Dave has said, no drain plug.
I will get a pump and get rid of the best part of the fluid first.
Thanks for the information Dave youve been a great help.
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Dave2302
Senior Member
2006 Mercedes S55 AMG, Retired Barefoot Waterskier
Posts: 1119
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Re: Cosworth Auto Box whining
« Reply #6 on: Mar 22nd, 2009, 4:43pm » |
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Hi
The whine in first is not a problem in itself they go on for years like it, it is just wear in the low gearset, but generally they go on for ages.
However, the slipping when pulling away is more serious and indicates impending doom, it is almost certainly a worn out forward clutch which will mean box rebuild / replacement, and is probably a direct result of running low on oil. 
My advice is not to waste your money changeing the oil and filter, put the cost toward another transmission or a rebuild.
HTH Dave (25 yrs in Auto Trans business)
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Dave "The 'ol Bear" ex Footer !
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philipcurtis100
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Re: Cosworth Auto Box whining
« Reply #7 on: Mar 22nd, 2009, 5:02pm » |
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where is the auto box dipstick i better check mine 
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scorpio_man
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Ford Kuga awd
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Re: Cosworth Auto Box whining
« Reply #8 on: Mar 22nd, 2009, 5:11pm » |
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on Mar 22nd, 2009, 5:02pm, philipcurtis100 wrote:| where is the auto box dipstick i better check mine |
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hi there
the black one on the left hand side.
check the fluid with the engine warm and RUNNING at all times. cycle through the gears 3 times.... r,d,2,1....r,d,2,1.....r,d,2,1 etc.
hth
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philipcurtis100
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Re: Cosworth Auto Box whining
« Reply #10 on: Mar 22nd, 2009, 6:03pm » |
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on Mar 22nd, 2009, 5:11pm, scorpio_man wrote:
hi there
the black one on the left hand side.
check the fluid with the engine warm and RUNNING at all times. cycle through the gears 3 times.... r,d,2,1....r,d,2,1.....r,d,2,1 etc.
hth |
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thanks found it
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gozz
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Re: Cosworth Auto Box whining
« Reply #11 on: Mar 22nd, 2009, 11:14pm » |
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Andy_Mac.
In my experience it's never worth changing a transmission for an unknown one without getting it stripped and checked first,the hardest part is removing and replacing the box,and to do this then discover a problem is,to say the least,very disappointing.If I suspect one of mine is 'not well' we rebuild another,then just do a straight swop complete with new torque converter,the extra expense always pays off in the end.
GOZZ.
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Andy_Mac
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Re: Cosworth Auto Box whining
« Reply #12 on: Mar 23rd, 2009, 7:24am » |
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Cheers Gozz,
what would I be the looking for when I open the box up to determine weather its good or needs work.
Andy
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gozz
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Re: Cosworth Auto Box whining
« Reply #13 on: Mar 23rd, 2009, 8:26am » |
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Andy.
Best to entrust the work to an autobox man,he knows all the wrinkles,he will look at the condition of clutch plates,servo seals,valve O rings etc and general wear.As previously mentioned first gear whine is very common and is not a great worry.You really need to find someone experienced who will do it as a private job,but it will still cost about £4-£500 quid witha torque converter,at least two or three times that if you send it in.You could of course be lucky and find a box that's OK if someone genuine produces one,but remember that unless it has recently had work it could be past it's best.
GOZZ.
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Dave2302
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2006 Mercedes S55 AMG, Retired Barefoot Waterskier
Posts: 1119
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Re: Cosworth Auto Box whining
« Reply #15 on: Mar 23rd, 2009, 1:14pm » |
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Hi Andy,
I agree with everything Gozz has said.
The one in yr link sounds okay, but looks like it is standing outside, and doesn't say if the converter comes with it. It doesn't take long for moisture to wreck an auto if it stands outside.
Never change an auto box without the convertor, and always flush out then blow out the cooler lines in both directions.
If money is tight, give it a go, but if you want to keep the car long term, as Gozz said, get a pro to rebuild it and supply a converter.
Also If you've no experience of fitting 'em let the specialist do it as it isn't as easy as you'd first imagine and they are also quite heavy.
HTH Regards Dave
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