Newbie need help w/Timken fluid drain, flush and replace?

homewood4

Precision Fit
Joined
Oct 23, 2009
Messages
521
Location
Citrus Heights & Tahoe
First Name
Greg
Willys Model
Pickup
Willys Year:
1954
#1
Manual says unless you replace Timkem rear end oil with same brand to drain, flush (with flushing oil) and refill.
Is this old school? Got no idea what brand the PO's used....
Do I need to flush? Is there such a thing as flushing oil?

Thanks
 

TornadoTamer

Bigger Hammer
Joined
Dec 8, 2009
Messages
73
Willys Model
Willys Year:
#2
homewood4 said:
Manual says unless you replace Timkem rear end oil with same brand to drain, flush (with flushing oil) and refill.
Is this old school? Got no idea what brand the PO's used....
Do I need to flush? Is there such a thing as flushing oil?

Thanks

Can't we just assume the original owner put gear lube in there and leave it at that? I did look up "flushing oil" and the information dealt with gunked up engines and using that to break up the gunk. Does it really matter what brand of gear lube they used?

I'm thinking that if you can look up into the dif through the drain hole or take the cover off and you don't see gunk (built-up grease deposits) then I wouldn't worry about the "flushing oil".

I hope that helps and I didn't tell ya wrong ;)

Good luck :!:

Atb!

TT
 

dozerjim

Sharpest Tool
Joined
Nov 11, 2009
Messages
319
Location
Clarence,New York (western part near Buffalo)
First Name
Jim
Willys Model
Pickup
Willys Year:
#3
I think any new brand name 90w gear oil will be fine,if you had an axle with posi an additive would be needed.Old tractor manuals talk about adding kerosene to the gear oil and then draining,let it drain at least overnight.Hope that helps you out.....Jim
 
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