[C320-list] Fuel Injector or Injector Pump?

[Bob Borelli]

The Perkins M30 manual don't mention decompression levers.
I do not believe they are on the M30.

  1.  Operating Instructions
  2.  Operation & Maintenance Manual
  3.  100 Series Work Shop Manual
  4.  Parts Manual

Now when you say 'high speed pump' do you mean the fuel injection pump?

You have tested the lift pump because there is fuel at the injectors when you bleed air from the system.

Now I know this sounds dopey but if the diesel needs speed to start, and the control throttle is forward, has the throttle lever on the engine moved forward?
If the cable does not advance the lever to governor & injection pump, not turning off fast enough.
Quick visual check & the stop lever also.

Thinking aloud:  If no work was done to effect timing, why would it be timing?  How to test?
Could it be lift pump diaphragm not pumping sufficient fuel to injection pump?  How to test?

________________________________
From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of Troy Dunn <troutwarrior at gmail.com>
Sent: Sunday, May 10, 2020 7:55 AM
To: C320-List at catalina320.com <C320-List at catalina320.com>
Subject: Re: [C320-list] Fuel Injector or Injector Pump?

Graeme-

That's exactly what I’ve been scratching my head about.   Not firing at all
is an air, fuel, or ignition problem upstream of the injectors is my guess
too.    I don't know if the fuel cut out affects the high speed pump, i
would have said no.  The only downstream problem I can think of is either
insufficient compression to get to ignition and/or something seriously
wrong with the cylinder head.

Is it possible the decompression levers could be thrown but not far enough
to have the engine making that obvious sewing machine sound?   Does the M30
have decompression levers?  Dunno.

It's going to be very interesting to hear what this turns out to be....

Troy