ditchlewis
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| posted on 23/5/12 at 07:39 AM |
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where did all the oil go?
last night i got the gearbox out the car and took the top lid off. looking inside there was no oil ...... no wonder it was a bit noisy.
the gears look in good nick with only a slight mark on one tooth but considering its an old box i was pleasntly suprised. the brass syncro gears were
a bit loose and would rattle a bit but the action of the gear change is good. there was also a reasonable covering of oil to all the gears and the
inside of the box (nowhere near dry).
my main consern is where has all the oil gone to ?
there are no oil stains under the car, there is a layer of oil inside the trans tunnel and what appears a "burnt film" in the bell
housing. when i split the bell housing from the box there was alot of oil around and in the gasget.
now i've had a problem with the breather being blocked so assume that the box got pressurised but would this cause ALL the oil to blow out of
the box?
how much oil would i loose through an un used / open speedo drive?
my plans are to
1. replace the seals on both ends of the box
2. replace the gasgets on the bell housing and thrust bearing shaft
3. remove the speedo drive and blank off the opening.
can any one think of anything else i should do to prevent loss of oil?
regards
Ditch
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mark chandler
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| posted on 23/5/12 at 09:24 AM |
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Not sure about a type 9 box, I had a C3 auto box in a mkI granda and the speedo cable fell out the back, drove up a steep hill and it lost drive as
all the fluid leaked out the back.
I would not be surprised if this is your culprit, when you are on the flat it does not leak.
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ditchlewis
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| posted on 23/5/12 at 10:02 AM |
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Due to the oil in the trans tunel I thought the speedo take off may be the problem.
I just can't see any obvoius leaks or tell tail signs of a leak. The only signs are a very greasy bell housing and oil in the trans tunnel.
Its a puzzle
Ditch
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ditchlewis
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| posted on 23/5/12 at 10:33 AM |
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Due to the oil in the trans tunel I thought the speedo take off may be the problem.
I just can't see any obvoius leaks or tell tail signs of a leak. The only signs are a very greasy bell housing and oil in the trans tunnel.
Its a puzzle
Ditch
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Bluemoon
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| posted on 23/5/12 at 02:36 PM |
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If it were me I would keep it simple. Fix breather (easy and will cause a leak), re-fill with oil, if could be bothered blank speedo cable exit (i
doubt it's this as cable would fill up with oil, they don't so there must be an oil seal in there..) Then try again checking oil level
frequently.
It could still be the breather as oil would be lost each time the box heats up pushing out a quantity of oil.. My guess is you could lose a lot of
fuild over a few runs like that.
Cheers
Dan
[Edited on 23/5/12 by Bluemoon]
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