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Re: New C/B/M oil pump

Bruce, Ian,
I have a pump in my now grubby hands and they have indeed improved.
To a point where I'm happy not to issue a warning about them.
As mentioned the shafts being turned rather than ground.
On modern machinery it's possible to eliminate grinding with some jobs.
The only comments I would make is that I found the gears not concentric to the shafts,
but only by a small amount.
Not enough for me to make mandrels to put them on the gear tester.
Another thing to remember and the same with the original pumps,
careful assembly is required for the gears to turn freely.

What am I doing different?
I'm changing the shaft and gear design to one that is more in common with the last pumps produced by BSA.
Also I hope to improve the ease of assembly.
If it looks ok when done there will also be a shaft seal to help with draining back when stored.
This is not a new project, sadly one shelved along time ago.
Once completed it also allows for a competition version to be made with ease.
How will it be priced, sorry it will have to be a little more than the Wassell pumps we sell due to expectations.

Mark

email (option): pes.sales@btconnect.com

Re: New C/B/M oil pump

I'm looking forward to seeing the results of your efforts...I bought an ABSAF high capacity pump for my Goldie so for me it's not all about price...I currently have a project underway which might benefit from a higher spec. pump....Ian

email (option): ian@wright52.plus.com

Re: New C/B/M oil pump

Presumably it's the case with most manufacturers using similar bottom-ends and identical oil pumps on their roller-bearing SV and OHV engines, that the SVs can cope quite well with a pump that might be less than optimal in terms of delivery ?

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