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Gearbox Dipstick - Above High Mark?

memphis

Jedi Hopeful
Offline
Hi Guys,

Changed the oil in my gearbox. Drained from both the regular drain plug and also via the overdrive large nut. I let it drain for about 30 mins to ensure all fluid was out.

Since the book calls for 3.8 quarts, I installed 3.5 and then checked the dipstick. The fluid was above the High mark line.

So I drove the car for awhile, thinking the fluid would go a bit lower once settled.

When I checked the fluid line again, it still sits above the High mark on the stick.

Two questions: Any reason why I am not able to fill with 3.8 qts and only be at the High mark?
Also, do I need to drain some fluid now, or is it ok to run above the High mark? What will happen with too much fluid?

As always, thanks for your help!
Bob
 

John Turney

Yoda
Silver
Country flag
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memphis said:
Hi Guys,

...

Two questions: Any reason why I am not able to fill with 3.8 qts and only be at the High mark?
Also, do I need to drain some fluid now, or is it ok to run above the High mark? What will happen with too much fluid?

As always, thanks for your help!
Bob

1. Was that 3.8 Imperial quarts? US quarts are smaller, and I don't have the book in front of me. If 3.8 is the volume for a rebuild, there is some that stays in the accumulator.

2. It will leak more. :whistle:
 
OP
memphis

memphis

Jedi Hopeful
Offline
Hi John,

Book says capacity with OD is 3.6 liters (or 3.8 US Gal).

I guess I need to open the plug and drain some out...

Thanks,
Bob
 

Roger

Luke Skywalker
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6 1/4 British pints = 3.8 US quarts = 3.6 litres.
The book is consistent, at least.
 
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