Ok I will bite.  What tricks to the oil pump to increase flow/rate.

Ray.

Robert Lilley wrote:

> >No, unfortunately the Oil Pump on the Type 4 based engined Vanagons is an
> >entirely (and expensive) beast.  The only company making a heavy duty oil
> >pump for the 1.7/1.8/2.0 is Melling and IMHO it's a piece o' s**t.  Leaks
> >worse than a wire canoe because the oil pump body is cast iron and with the
> >>aluminum case of your engine does not expand at the same rate when warming
> >>up.  Tried one once, despite advice from others not to.  I had LESS oil
> >>pressure.  Pulled it, put back in the stock pump.
>
> >Actually, while the type IV pump is different, you >can install a type I
> >pump quite easily. The od is the same, the drive is >the same, the oil holes
> >are in the same place. The pumps are interchangeable, >even though they
> >don't look the same. The type IV pump is an >improvement on the type I style
> >pump in the sense that it has one less place to leak.

> The 1.9 L and 2.1L Wasserboxers stock cam is a four rivet dished cam, therefore an
> oil pump for dished cams needs to be used, otherwise the pump will not fit properly.
>
> A stock T1 had two different types of cams (a four bolt dished and a three bolt non
> dished)and oil pumps they are not interchangeable.
>
> A new cam can be ground on a non-dished cam and a aftermarket oil pump used that
> matches. Then the T4 oil pump can be used then.
> [It is probably the best T1 style oil pump VW put out, stock (I have not looked,
> nor measured the gear length of the Wasserboxer oil pump yet but should be as good??)].
>
> If the engine is being rebuilt, otherwise stick with a stock unit for the Wasserboxer.
>
> There are some tricks that can be done to the oil pump to increase the flow.
>
> VWVanman
>
> Free web-based email, Forever, From anywhere!
> http://www.mailexcite.com