It *is* important to get reliable contact operation. The workshop manual
describes it thus: "With the pump held horizontally, slowly unscrew the
diaphragm while at the same time actuating it, until the rocker just throws
over.Unscrew the diaphragm until the hoes are aligned, then unscrew it a
further quarter of a turn (four holes)."
PaulH.
-----Original Message-----
From: Fred Pixley <fpixley@kingston.net>
To: mgs-digest list <mgs@autox.team.net>
Date: 20 October 1999 14:14
Subject: Fuel Pump Stroke
>I recently cleaned up a non-working SU electric fuel pump I bought at an
>autojumble, actually the Bronte Creek show. It will be chucked in the boot
>of the BGT for use as a spare. I sanded the points and freed up the plunger
>and diaphragm. It looks nice with the body sandblasted and clearcoated.
>This was from an older Healy from the 50's and has no diodes and works fine
>in pos or neg ground configuration.
>When I took it apart I didn't count the number of turns the plunger was
>screwed in and I just guessed at it upon reassembly. I allowed for a
fairly
>short stroke and it pumps air OK. How important is it to adjust the stroke
>on this thing?
>
>Fred Pixley
>Napanee, Ontario, Canada
>fpixley@kingston.net
>
>
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