DavidP, South Wales
Well-known Member
Have a customer's 35 3-cyl in. Absolute pig
to start from stone cold. Once started and
warmed a little will start immediately and
sounds great. New thermostart fitted and
all compressions are spot-on. Have adjusted
tappets which were all just about tight.
The problem that I have is with the pump
timing. Have set flywheel to 'Spill 18'
mark in centre of inspection hole on number
1 on compression. Have removed pump
inspection plate. Initially pump appeared
to be way too far advanced. Have retarded
to try and align circlip scribe mark an 'E'
line on rotor. Have removed timing cover
and all gear marks are spot-on. Appears
that someone has filed the pump slots to
retard the pump further but at max rotation
(present slots)the marks are still nearly
2mm 1/16" apart. Have even measured spill
mark in inspection hole to ensure that it
is central. Have not stripped a DPA before.
Is it possible for the circlip to turn in
it's groove and to lose the timing point?
Really struggling to find an answer to this
one. Thanks in advance for any help.
DavidP, South Wales
to start from stone cold. Once started and
warmed a little will start immediately and
sounds great. New thermostart fitted and
all compressions are spot-on. Have adjusted
tappets which were all just about tight.
The problem that I have is with the pump
timing. Have set flywheel to 'Spill 18'
mark in centre of inspection hole on number
1 on compression. Have removed pump
inspection plate. Initially pump appeared
to be way too far advanced. Have retarded
to try and align circlip scribe mark an 'E'
line on rotor. Have removed timing cover
and all gear marks are spot-on. Appears
that someone has filed the pump slots to
retard the pump further but at max rotation
(present slots)the marks are still nearly
2mm 1/16" apart. Have even measured spill
mark in inspection hole to ensure that it
is central. Have not stripped a DPA before.
Is it possible for the circlip to turn in
it's groove and to lose the timing point?
Really struggling to find an answer to this
one. Thanks in advance for any help.
DavidP, South Wales