Please help;
I have a 91 740 turbo. The original motor had to be replaced. I found a 87 740 turbo with a rebuilt motor so I bought it. I swapped the motors. The only component I left on the 87 motor was the distributor. Everything else is from the 91. Intake,turbo with exhaust manifold,flywheel etc. My problem is this. When I swapped the flywheels, I didn't set the flywheel up right in relation to the timing or the crankshaft position sensor. My question I need answered is where should the flywheel be bolted or set when I'm at TDC?

Please help Pat.