New to me 911 w/2.7 isn't firing on cyl. 6. Has spark, compression,fuel, recent valve adj., 152psi compression. I'm at a bit of a loss. What am I missing?

Cheers,
Pete

 

Only 6?

I once had my plug wires mixed up between 2 of the cylinders and spent a good 3 hours trying to diagnose... silly mistake! Of course individual diagnosing told me that I had spark/fuel/etc... just not at the same time.

 

1,6,2,4,3,5 = firing order. OK? How do you know that you have fuel (I assume that the car still has its CIS system)?

 

Hey thanks...Firing order is correct, and I can see fuel(and have dripped fuel)has Webbers, I have checked the intake, all clear. Swapped leads to no avail. Can cam timing do such a thing even though 4&5 seem to be firing in time?

 

UP AND RUNNING ON ALL 6 Fuel it was after all. Sneaky little blockage that finally gave up! Thanks for the help all...

Cheers,
Pete

 

Even God calls Peter Z for this kind of stuff.

 

fuel blockagesarent normal. I would drain and flush that tank , put a new filter on and inspect in the tank . I think there may be a screen in there also.