944 wont start, turns over but doesnt fire up

[OK-944]

I owned a 944 with a distributor rotor that had been glued on by a previous owner. Not a bad idea but need to break it off to remove. Still, probably worthwhile.

[DannoXYZ]

Originally Posted by Timmay!

???? If rotor is loose.....

If rotor loose, DME still fires at exact same time. What tells DME when to fire is speed/ref. sensor. Loose rotor doesn't affect those sensors one bit.

Spark will just jump across a different section of rotor... Towards one end or the other, then spark stops jumping when rotor is spun so far that spark tries to jump when it's not aimed at a plug-terminal. But spark timing is always same regardless of rotor position.

Now what happened in your case is probably built-up fuel due to misfires. Then it finally catches and extra fuel in exhaust ignites!