Hi guys,

I tried starting my GSLSE after new motor install this morning. I have rebuilt engines, transmissions and rear ends in the past, but this is my first rotary rebuild and my first time working with fuel injection. I've got good compression judging by a standard compression tester (125 psi) and cranking w/o spark plugs installed. Pulses are strong and evenly spaced.

It's running on the rear rotor only. I've got spark and I've got fuel.

A couple of questions:

If if happened to get a rotor off one tooth, would it still run on that rotor?

When I pull the plugs off of the front rotor, there is "some" fuel, but not much. If the front injector was working properly, how "wet" would you expect the plugs to be in this condition?

 

Hmmm, I'm pretty positive if you got a rotor off one tooth, the motor would not turn. Or even go together for that matter. Try pulling the manifold and verifying that the front injector is spraying. Triple check that the plugs are firing. Make extra sure you got the distributor stabbed properly, and that the cap/rotor are nice and clean.

 

If you've got good compression on the rotor, I think you can relax about being a tooth off; since the stationary gear synchronizes the rotor's apexes to the shape of the rotor housing for any position of the eccentric, being a tooth off would almost certainly disrupt seal. It might not even turn, as James said; but if it did it almost certainly wouldn't develop decent compression.

If you've got good compression and a rotor is not firing, you're either not getting fuel to that side, or you're not getting spark.

Does the exhaust smell horribly rich? If not, odds are this is a fuel delivery problem. If you're intaking fuel for both rotors but only burning one, you'd have serious unburned fuel emissions. Your cat would be glowing red, probably.

I can't help much more than that, as I'm not an SE guy, but I do wish you luck with your project.

 

I don't smell gas and the plug doesn't seem flooded to me, so I've sent the injectors off to RC Engineering. We'll see what they say. Here's a pic of my one-rotor-motor.