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Hi my name is Robert......
Have you checked the fuel cut off solenoid, should be mounted on the side of the engine, it will have a plunger with a rubber boot, below is a picture, try pulling up on that plunger while someone tries to crank over the engine and see if it starts. When you turn the key you should see the plunger move and then when you crank it should stay up.... IF the engine starts holding the plunger up I would replace the solenoid.... Robert
I only know a little on these older engines and know if the fuel cutout solenoid was not engaging then the engine will not start, also on this engine if the return check valve was bad it could cause a hard start condition after the unit has sat. I think at this point I am going to put your question back up for other experts, maybe another expert will have some input on this, my goal is for you to be satisfied and I really can not say about the electric pump.... Robert
Yes that is the solenoid I am talking about. It is possible that you have not gotten all the air out, I might pull the filters, make sure they are topped off, then bump the starter about 6 times and then give a hard crank no longer then 30 seconds.... Robert
Maybe I would see if the filters are topped off to the top when you pull them after cranking... Robert
I did put your question back up but I do not know when or IF another expert will respond they come and go daily...
As a kid that was my dream car 944 that is cool you work on them. On this site is a car section and I have seen a bunch of questions for them...
LOL... That would be cool..... Robert