more valve adjustment on p90

[Bernardd]

Head swap is done but the car won't start. Have spark and fuel. We adjusted the valves cold

to .015 intake and .019 on exhaust. Could this be keeping the car from starting? Any ideas?

Bernard

83 turbo with 81 p90 head

[SleeperZ]

Assuming you have spark and fuel , the timing is all it can be. Check the cam timing (cam mark lines up at TDC with #1 valves both closed) and the distributor timing according to the FSM (engine at TDC, oil pump mark lines up with the dizzy shaft, dizzy half moon at 11:30 to the left).

 

Are your plug wires attached to the cap in the right order?

 

I just got my swapped motor running, and followed these guidelines and it fired right up. MOF, my ignition timing was DEAD NUTS on, I had no dizzy adjustment at all.

 

BTW, your valve adjustment is quite loose, but it will not keep the engine from firing. Cold, the exhaust should be 0.010" and the intake should be 0.008".

[SleeperZ]

Exactly, cold, like I noted. There is about a 0.002" difference hot to cold, and hot clearance is 0.006" for intake and 0.008" for exhaust.

[Tony240ZT]

Note, he said he adjusted them that way when cold. I've never measured the difference when cold and when warm, but that is probably about right.

 

Like stated, its just a timing issue now.