oil pump wear

Second request, please help...

What do I look at for pump wear, besides the gear teeth being worn?

What is acceptable wear for the 'rings' the gears create in the back of the
pump body?

thanks,

Mel P.

On Nov 30, 2:14 am, "Mel P." > wrote:
> Second request, please help...
>
> What do I look at for pump wear, besides the gear teeth being worn?
>
> What is acceptable wear for the 'rings' the gears create in the back of the
> pump body?
>
> thanks,
>
> Mel P.

Hey Mel you want to look at the oil pump drive shaft, pull the gear/
shaft out and see how much wear is on the tapered end that fits in the
cam gear.

I won't reuse a oil pump if theres a mm wear off opposing edges

Mario
Vintage Werks resto

On Nov 30, 2:14 am, "Mel P." > wrote:
> Second request, please help...
>
> What do I look at for pump wear, besides the gear teeth being worn?
>
> What is acceptable wear for the 'rings' the gears create in the back of the
> pump body?
>
> thanks,
>
> Mel P.

Yes, you want to look for a worn cover, as well. This is a telltale
sign of a worn pump, learned this one from firsthand experience as
well as the advice of many professional engine builders.

Mel P. wrote:
> Second request, please help...
>
> What do I look at for pump wear, besides the gear teeth being worn?
>
> What is acceptable wear for the 'rings' the gears create in the back of the
> pump body?
>
> thanks,
>
> Mel P.
>
>

If you are cheap and want to extend pump/pressure life(Not the correct
place to save pennies, buuut..).

Smooth pump cover on flat surface(thick glass is good), use fine emery
cloth.

Smooth pump body with gears in till(Surface to cover) all even, the
gasket will provide clearance.(Use thin paper gasket, make if have to...).

The wear at the back of pump body/cavity is more difficult.

J.

At the price of a new pump, it isn't worth spending more than 10 minutes
dealing with an old one.

Jim
SR Racing

The most significant wear point is in the bore that the drive gear shaft
goes through the pump body. If it is ova led enough, the drive gear will no
longer be parallel to the driven gear or the pump body. Take both gears our,
and place the drive gear from the back side of the pump. Try to move the
gear sideways. There should be no noticeable sideways movement.

You can ignore the wear rings on the bottom of the pump body.

Oil pressure is affected by the axial end play of the gears. The gap between
the gear edges and pump cover should be 0.15mm max. Follow Berg's advice to
increase oil pressure of a used pump. This way you force the gears to be
more parallel to each other, and so the gap on either side of the gears
between pump body or pump cover is minimized, so less pressure leaks inside
the pump.

--
Bill Spiliotopoulos,
'67 Bug.

"Mel P." > wrote in message
...
> Second request, please help...
>
> What do I look at for pump wear, besides the gear teeth being worn?
>
> What is acceptable wear for the 'rings' the gears create in the back of
> the pump body?
>
> thanks,
>
> Mel P.
>
>