Hello everyone, I am working on a 76 912e. The main complain is that it has a hesitation on acceleration at higher RPMs. When you shift gears at about 3000rpm, you can feel the hesitation. The distributor had had petronix electronic ignition instead of points and condenser. I removed the distributor, installed new points and condenser, adjusted points to .015" (once engine was running checked dwell is 49 degrees), installed distributor back onto the engine, the engine will not start or had a very hard time starting and runs very rough. The distributor was installed roughly on the same position as it was before removal.
If timing is advanced the engine will start, run ok, drive ok, but idle sticks very high at times.
My research indicates to time the engine to 27 degrees BTDC @ 3500rpm with engine at operating temperature and vaccum hose disconnected.
There is a plug in the air fan shroud, if you remove it, there is a V shape notch in the case and there is a groove cut along the fan.
When they line up:
1.) Is it TDC for cylinder # 1.?
2.) Should both marks line up 27 degrees BTDC @ 3500rpm at operating temperature with vaccum hose disconnected?
I tried timing it with 1.) , but can not achieve it and idle is very high.
I timed it with 2.) idles fine, but it has a serious lack of power on acceleration and it is hard to start (the distributor in this position matches original location when it had the petrinix installed).
The distributor has 2 vaccum hoses attached to it, should I disconnect both of them when timing it? (I disconnected them both when timing it).
If anyone can shine some light in my path it'll be appreciated.
