alistairolsen
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Registered: 21st Jan 06
Location: glasgow
User status: Offline
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I bought a cally 16v with 84k on it as a donor for a corsa project. The car was driven home and despite to slightly sloppy gearlinkage had no problems changing gear.
The engine and box and driveshafts were removed from the car and lay unused for about two months in the garage. No shafts in the box.
The engine was then fitted tot he car and the car was put on the road. It had no problems chaging gear while manouvering in the driveway. The linkage was set using the drill bit method in haynes and works perfectly.
I put it on the road and warmed it up and took it for a drive, first time I went over 3k and tried to change it wouldnt chage up. If you let the revs fall till they match it slots in with no issues. On the downshift you have to double clutch it or it wont change.
I assumed the synchros had gone sticky and simply needed fluched out with some degreaser, so rather then drop the box out the car I flushed it out with petrol, refilled it with petrol and drove around a bit at low speed with plenty of gear changes. It still wont change gear, and behaves exactly as above.
Before I drop the engine to change the box, has anyone got any good ideas. How can a perfectly good box loose all its synchros overnight? It doesnt whine, all the gears are there.
Sorry about the essay, cheers.
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ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
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if the problem isin more than 1 gear i would be looking at clutch.
I presume when you said you refilled it with petrol you did mean gearoil?
I also assume you used ep 80/90 or semi syn 75/90 not atf or aqm
[Edited on 07-06-2006 by ainsley_brader]
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alistairolsen
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Registered: 21st Jan 06
Location: glasgow
User status: Offline
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no, I meant petrol! Best degreaser going if anything sticking and boxes are fine with no oil in for a short while (my panda did 6 years and 700miles of offroad abuse and showed no signs of giving up)
I thought clutch, but ive adjusted the cable so that when pushed in the release arm is as hard in as poss, you cant lever it any further with a tyre lever at all. If the release bearing had collapsed it would be noisy, so i can only assume that the clutch must be moving clear (cant check as its a gay pot type flywheel)
It was filled with ep80 gearoil to the correct level before it went back onto the road and hasnt worked since.
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ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline
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how many gears do you have problem with?
Your panda wouldnt have had the temperatures off road to cause a problem. Hammer your 2.0 down the road for 50 milesand i know it will do some damage.
How many miles have you done with the oil back in as the synchro rings rely on a film of oil to operate!
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alistairolsen
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Registered: 21st Jan 06
Location: glasgow
User status: Offline
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had a problem with all of them.
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ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline
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its going to be clutch!
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alistairolsen
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Registered: 21st Jan 06
Location: glasgow
User status: Offline
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its done about 15 miles since I filled it with ep80.
I have to say I think its clutch related, but I just cant see how. Only thing is if the release bearing is sticky and its providing some drive even when the plates are seperated. Whatever, its a box off job now.
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X 60RSA
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Registered: 20th Aug 01
Location: Lincoln
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What is it like when you blip the throttle before changing gear, any easier to get into gear at all?
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alistairolsen
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Registered: 21st Jan 06
Location: glasgow
User status: Offline
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thats what i mean by double clutching mate.
It looks like the clutch isnt sliding freeliy on the input shafts, and providing a little drive to it even when released.
I assume the input shaft can be withdrawn like in the smallblock boxes?
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