just wondering is the any timing marks on the rotors or the gears to specify timing. how do you know if the timing is correct

 

No marks on what you mentioned.

The marks are on the PULLEY. The pulley fits only one way on the E-Shaft. It is the key on the shaft that makes this so. Key on the shaft mates with the key slot on the pulley hub. Can't be screwed up....much...as long as you use the same series pulley/hub the engine came with.

 

so when you are doing a rebuild how do you know which way the rotors go sorry for being such a newb its my first rotory rebuild im doing have done many piston engines never a rotory

 

First of all, you need to get yourself some good reading material (if you don't have it already), the FSM (factory service manual). See sig. below and check archives and stickies for more links.

Basically, you assemble the engine front to back, with the front usually facing down on an engine stand. When you place the eccentric shaft in, the front journal mates with the front stationary housing bearing in the gear. When you add the front rotor, you put it through the eccentric shaft and rotate it until the gear in the rotor meshes with the gear in the stationary housing.

Essentially, the eccentric shaft keeps the rotors in the correct position relative to each other and the rest of the parts that matter are keyed to ensure correct alignment (counterweight, etc.). That's the jist of it, without going into too much detail.

 

have all the service manuals so you are basically saying everything fits together one way you can really screw it up right ?

 

******fits together one way you can really screw it up right ? *********

I think you meant CAN'T and not can in the above.

Personally, I can screw up a bowling ball made out of titanium, if given the chance.

 

I'd like to see that.

 

yeah i ment you cant screw it up it is a made to fit togehter one way correct ?