Re: "Bench test" of Rotodiesel pump
From: PEUGPETE@AOL.COM
Date: Mon 15 Mar 2004 - 09:14:27 EST
Bob
Several years ago, I built a pump tester, using the mounting flange from
an engine and an electric motor to chain drive the pump. I used a 120/12V
transformer to supply voltage to an in-line fuel pump and the fuel shut-off. I
mounted 4 injectors in a piece of 4" pipe, with a drain through an in-line filter
back to the reservoir (1 gal lawnmower tank). The pipe was drilled to view
the spray pattern, to see if the pressure was adequate. By using the in-line
supply pump, priming was not necessary.
This may be a bit much for a one time use, but for a shop, I used mine
quite often and saved the $120 test charge.
PP
bobwllms@glis.net Writes:
In order to take a spare pump along on cross country trips I need to
test an extra pump from an XD2 engine which worked about 12 years ago and has
just had a new front seal and "O" ring replaced. It has been
set up on the bench with fuel and return lines, bled, but when I rotate it
with a drill, it does not pump anything. A BOSCH pump can be tested this way,
but will it work with a ROTODIESEL w/o the injectors hooked up? Around here
(Detroit) no one will test a pump unless they rebuild it first and I don't want to
take the trouble of swapping it onto the car just to try it out. Any ideas?
Thanks
Bob Williams
themadsparkie@blueyonder.co.uk Writes:
Hi
On CAV pumps there is a fuel stop solenoid have you put 12 v to it (earth
the body and 12 on the crimp connection) or remove the plunger inside the
solenoid, the pump should be attached to injectors as the most common failure is
lack of pressure through wear of the seal, better still test the pressure
Jim
maube@idirect.com Writes:
It needs to be primed first, just like the old well hand pumps. Put some
oil through it, then it will work until it gets air locked. I usually use
ATF through them.
Mike Aube
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