I am not sure all of us have an electric pump. I know
I don’t (w58). I have one purchased but not installed
(Walbro).
ap
— Robert Fine <> wrote:
They do corrode if not cared for – in some engines
(maybe even ours) they’re
aluminum or an aluminum alloy that just due to the
fact they’re in a damp
area and in contact with a bazillion other metals
corrode.Secondly, repeated bleeding with excessive force
will maul the tubing
surface resulting in a leak that requires more
torque to seal, creating more
leakage… until in an effort to stop the leak the
nut cracks.The torque specs for those tubes are in the inch-lb
range, not foot-lb. The
sealing surface is very narrow. The reason those
tubes are as soft as they
are is so that they (ostensibly the least expensive
part) are the ones to
fail, not the expensive fittings on the injectors or
fuel pump.Finally, between the lift pump and manual pump it
should be an extraordinary
circumstance to need to bleed the injector lines.
Once the main injector
pump is primed it will fill the lines. Sometimes it
requires using the
compression release (if we have one – I haven’t
looked) so you can spin the
engine fast enough.If the lift pump on the side of the engine isn’t
working, the engine may
still run ok, but you won’t be able to prime it
properly. I know that when
I change my filters, I let that pump run for a bit
until it stops (you
should hear clicking which eventually stops or slows
considerably). Then I
roll over the engine for a bit and it usually
starts. It’ll run rough for a
few seconds and then all will be well. Perhaps, in
this, I’m amazingly
lucky.Bob
On Tue, Jun 17, 2008 at 5:09 AM, Paul Lefebvre
<>
wrote:Showing my lack of experience with these engines,
why do the fuel injector
lines need replacing. Is it due to corrosion of
the line or because they
will no longer seal because of repeated opening
and tightening to bleed the
lines. If it is the latter, that makes the case
for an external fuel pump
pretty strong.
Paul
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—
Bob Fine
Fine Software LLC
Your data on the web your way. No kidding
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