Fresh rebuild will not start
 

Video here 993 won't start - YouTube

With the dme pulled, the motor spins freely and builds solid oil pressure. With the due installed, see video. The motor spins a few times, then pauses, spins a few times and pauses.

There is pressure in the fuel rail. The exhaust 'blows' Ive had a long day and it's cold out so we called it a night. Any suggestions?

sounds like ignition is out of time. Put it on tdc#1 and make sure both pointers on the distributors are correct.
warren

So incorrect timing will not always pop or backfire?

thats right

Thanks Warren, I'll check that in the morning.
Jim

Did you do the timing of the Cam's

TDC for #1 should have both rockers moving, then set distributor for the timing mark. I am doing a 964 a did the timing of the cams and it started on the third try. good luck

Andrew

All set now. Distributor was out of the by about 60 degrees.
Just started it up, run smooth. Thanks for the help!