- no obstruction to the air flow through the air filter and MAFS
removed MAF device to squirt starter fluid straight into the intake.
There are no obstructions. Air cleaner is clean.
Have you checked:-
- That the tacho registers RPM when you crank the engine?
The Tach jiggles when cranking does NOT actually register RPMS.
Yes.
- The correct firing order of the plugs (1, 5, 3, 6, 2, 4)?
I was never changed. The car was running in full gallop when it died.
- That the plugs are wet with gas when it doesn’t fire?
NO.
- The fuel pressure in the fuel rail?
Yes
- The compression in each cylinder?
Not checked, but not necessary unless you can come up with a scenario
that would kill ALL 6 cylinders at the same instant in full flight.
- The timing - valve and ignition?
All is well here, timing chain tight and complete all valves are
working. Again the failure has to be something that affects all 6
cylinders simultaneously.
- Is the throttle plate opening?
Yes.
To reiterate for any newcomers. The car was at full gallop when it
quit and coasted to the side of the road dead and not starting.
Therefore the failure has to be something that affected ALL cylinders
at the same instant. A broken timing chain, spark, or fuel delivery.
The timing chain is fine. Also it has started TWICE and run for 30 to
60 seconds. It runs fine and smooth, no missing cylinders. Thus, the
timing chain did NOT jump a gear and all valve and mechanical timing
is correct and the compression is affirmed.
NEW Components in order of application:
- CPS
- Ign Amp
- Spark Coil
- Fuel Pressure Regulator
Items tested:
- Fuel Pump… reached 100psi + against a dead end. Can hear it running
- Distributer Cap…examined and its fine…not a likely suspect
anyway because all failing at once not likely.
- Spark plugs all regapped again, not a likely suspect since all
failing at once would be very high odds.
- Rotor…fine
- Fuel quantity…full tank and flow at fuel rail
- Injectors…they are clicking when cranking…havent tested beyond
that as having ALL 6 go at the same time is unlikely
- Distributor is tight and correctly timed.
Items NOT tested or examined:
- ECM
- CP wheel
The problem with a lot of theories is that they either do not match to
the sudden catastrophic failure of ALL cylinders at the same instant
or they do not hold up to the fact that the engine has started TWICE
since the failure and run for 30 tp 60 seconds in perfect tune.
What ever failed has to be something that can correct itself for short
periods…leaves out wrong firing sequence…AND that will cause total
failure without even a pop from ANY cylinder…rules out spark plug
failure, piston failure, valve failures.
With both these criteria to meet it is hard to think of something that
would apply.
Jim Isbell
“If you are not living on the edge, well then,
you are just taking up too much space.”
Visit the Jag Lovers homepage at http://www.jag-lovers.org for exciting services and resources including Photo Albums, Event Diary / Calendar, On Line Books and more !On 8/10/07, Cliff Archie rcarchie@nationalgypsum.com wrote: