RX-1 Turbo trouble.

[Master of Faster]

Just finished installing a Simons CPR turbo. I also added an extra headgasket before hand for added safety. Finished everything up this afternoon and just can't get the sled to run. If I hold it wide open it will fire and it will just barely run but let off and the sled just dies. Every once in a while it will fart back through the carbs.

I'm a little bit baffled because I don't know if the problem was with the installation of the turbo or possibly the cam timing.

Is it possible that the cam timing can be 180* off? Meaning the ignition is firing on the intake stroke? The marks are lined up on the cams and flywheel perfectly so this is the only way I figured the cam timing could be off.

Any help or direction is greatly appreciated.

 

[snowy1]

I would double check cam timimg sounds like you may be off.

 

[givemeaboost]

Did you have any trouble getting the cams lined up ? If you had them off a couple of teeth and turned the engine over it probably bent some valves. They bend real easy so I would do a compression check. Ken.

 

[Master of Faster]

The cams lined up fine I thought and I rolled the motor over by hand before cranking as well and there wasn't any abnormal resistance.

 

[powderlites]

Cam timming

Sounds like you need a real mechanic guy. Cams out 180 ?? turn motor over 360 and cams will line up!!
Gee better start with checking to see if valves are on overlap.
blow air into plug hole on top dead center on overlap.
If no air out one of the intake or exhaust cams are out!

 

[Master of Faster]

Yeah, I got that. According to timing marks the valve timing is dead nuts. I guess what I'm tryin to ask is does it sound like I may have set the cam timing while #4 was at TDC of the exhaust stroke instead of the compression stroke and would that cause the valve timing to be out of sync with the ignition timing?

Sorry if this seems dumb to you...