Hi all,
O.K. I will first need to source a Pierburg fuel pump, the one I have now pumps alot more than 3psi.
As well I did a compression test and came up with..135, 145, 115, 140, 120, 135 on a 74 B30F. Is this resonable compression? Would I need to address cyl. #3&5 before a smooth idle is achieved?
As well what tools would I need to do the valves myself? This would be my first engine repair.
Thanks in advance,
Tim

RPR and most other Volvo places have the Pierburg pumps. They are standard
for B16, B18, B20 and B30. Be sure and get 2 gaskets and the plastic
spacer too.

120 and 115 are kinda low but I would not think they would affect the idle
unless caused by a valve problem.
Put about a tablespoon full of oil in each cylinder and check the compression
again. If they come up, they were low because of worn rings. If not,
it is probably a valve problem and a valve job would help.

If you are going to do a valve job I'd recommend that you pull the head
and take it to a good automotive machine shop and have them do it.
They will have the equipment to do it right. Hand lapping is better than
nothing but it is not a substitute for a proper grind on an engine that old.
(unless it had a proper valve job in the past year or two).
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma