[Healeys] oil pump

simon.lachlan at alexarevel.plus.com simon.lachlan at alexarevel.plus.com
Tue Oct 30 06:12:18 MDT 2018


Has anyone got the Denis Welch oil pump ENG672M? See:-


Their text:- "Heat treated castings for longer life and removable gallery
plugs to be sure it is clean are advantages of both types of oil pumps we
offer. We recommend the high capacity for all road engines using a standard
type crank up to 6000 rpm and the standard pump for race engines, steel
cranks or anything over 6000 rpm. Both are precision machined and assembled
in-house to control the highest quality.
- ENG672 is the standard type.
- ENG672M is the high capacity pump."

What are "removable gallery plugs"?

Is it just me or is the above a bit counter-intuitive? "High capacity" for
road cars and "standard" for race engines? Surely the highest capacity is
needed where the engine is working hardest ie racing? 

And don't I remember that, with the standard BMC pumps, the older type is
reckoned to be better than the newer type? Is this something similar to
Denis Welch's two pumps?

Anyhow, if anyone's got one...what's it like? Did the oil pressure improve
at all?

I'm guessing that most people will have fitted one as part of a big rebuild
thus they won't have straightforward "before and after" comparisons. I'm
thinking of fitting mine to my engine as part of a small winter project and
hope I can squeeze a few more psi into the system. 



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