Mitchel,
Having sold many pumps of different styles to chemical processing
industries, I would tread lightly where you are going with that pump. Every
aspect of a pump's design is interdependent. For example, the impeller
design and size is dependent upon, among other things, the resistance to
flow at the pump suction and discharge ends. You could unknowingly reduce
the performance of the pump you are modifying. Opening up the suction end
would usually not cause a problem, but I would hate for you to fine out that
it did the hard way. The best thing you could do is stop removing material
and contact Autopump to tell them what you see.
Gary
'73
----- Original Message -----
From: "Mitchel Seff" <ms6453@optonline.net>
To: "6-Pack email list" <6pack@autox.team.net>; "'Triumphs@Autox Net
(E-mail)'" <triumphs@autox.team.net>
Sent: Wednesday, December 25, 2002 9:49 AM
Subject: Oil pump porting
> Hi all, Happy holidays!!
>
> I received a new oil pump a while ago made by Autopump. After comparing
> it to my old pump I noticed that the oil intake ports in the housing are
> considerably smaller than the original. I can see where the machining
> has not removed as much material & I have started to open up the area. I
> don't mean casting material that needs to be cleaned but a smaller
> machined opening. I also noticed that the the drive gear does not
> completely fill the gear sleeve when in it's tightest position. This may
> have no effect on oil distribution but I would like the opinion of the
> more knowledgeable on this subject.
> My original pump ( I think it's the original ) does not have the shaft
> pinned to the gear but the new one does. I would think that's a plus.
> Thanks,
>
> --
> Mitch Seff
> Oceanside, N.Y.
> 75 TR6
> http://www.angelfire.com/ny4/triumph5/
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