Re: Running Rich/Weak Spark.... or something else? where to look for problems
8Mud said:
Only one way to set the distributor and have it be 99% certain it´s right, is to hook up a vacuum gage, number 1, as soon as it builds a little vacuum, line up the timing mark (clean and mark the timing mark so you can see it well) it´s always best to have your last turn to the right on the balancer, when aligning the timing mark. Slide the distributor in until the the rotor lines up close to number one marked on the cap (I usually mark the side of the distributor case also) if it has the aligning fork still on the distributor, align it with this (at the clamp bolt). Did you ever look at the pin through the gear?
:doh: I meant to say compression and not vacuum, brain fart.
It´s not unheard of to have the woodruff key break on the harmonic balancer and for it to spin some on the shaft. You can check TDC 1, with a slightly bent piece of welding rod, down the spark plug hole and finding the highest piston travel that way, then checking the timing marks.
Have you checked for voltage and pulse (between the grey and blue with the connector connected) at the cam position sensor? I've heard, but never had the experience of it causing a very poor running motor.
The book says the TPS, CPS, MAP, MAT, engine temp. sensor and knock sensor all input timing.
I've only had one motor do what you what you describe, my son set the firing order counter clockwise.
Good compression, makes it unlikely it`s a cam timing problem (timing chain). But when in doubt, you can check to see what the number one intake and exhaust rockers were doing at TDC 1. They should be a little loose and at equal hight.
Your vacuum sucks, but if you get it somewhat stabilized, rapid pulsing of the needle is often a sign of valve trouble.
You can plug off all the vacuum lines, except the MAP and the motor will run just fine. Just for a test.
I've run mine before, with all the cables one off on the cap, ran just fine, the Renix seems to have a rather large timing envelope.
