[AT] cub / prime oil pump

[Michael P. Maynard]

The major reason for priming a cub oil pump is as follows....   the oil pump
on the cub doesn't actually sit down in the sump like most do.  It is a gear
pump mounted right on the rear of the engine under the bell housing.  The
oil has to be pulled up probably a foot or so to even reach the pump.  With
most pumps I have seen other than the cub, the gears are right down at oil
level, some maybe even below oil level, so there is no distance to travel
(or have air pockets trap in) to get to the gears.

MIke

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Chris Britton
Sent: Thursday, June 09, 2005 7:31 AM
To: at at lists.antique-tractor.com
Subject: [AT] cub / prime oil pump

>Well  that tells me you are on my side of this issue if its leaking or worn
>you really  need to fix it before you have real trouble.
>If you have an old tractor and want to keep it in good shape I would assume
>that a properly working oil pump would more important than anything.
>There are no shortcuts to good mechanical work.
>Would you pay the local shade tree Mechanic to prime your cars oil pump to
>get it to work or would you prefer a new one.

It depends.  If my car had set for 20 years, and needed an initial prime to 
get
the engine running, but then held prime after that.. I wouldn't think twice.
I've seen that situation many times.  Now.. if it looses prime just setting 
there
day to day.. then yes, it needs to be addressed.  I vew priming the oil pump
as a helpfull way to get an old engine running that has set for a long 
period of
time.. not a day to day fix.

Soundguy 


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