We recently replaced a motor for a guy who had washed all the bearing and rings out with gasoline in the crankcase. Not to mention overheated it countless times.

The crankcase was completly full of gas. Very little oil left in it.

Out came the tired 305 and in went a GM replacement "targetmaster" 350.

The new motor is showing signs of filling with gas.With only an hour or two of driving.

Here is what I did when I swapped it over:

The carb was replaced with a new reman electronic Q-jet, By holley.

The "on block"fuel pump was replaced with a new one as well.

Everything imidiatly related to the fuel system was replace. What gives?
I had figured that the diaphram on the pump was the culprit. But with the new one it does the same.
It dosen't run rich. It will idle and drive fine. No black smoke or anyhing out of the ordinary.

It almost seems tht the fuel line runs direcly into the valvecover.

Another thing, How do you set the timing on this thing. I remember there being a plug to disconnect on my Formula 350 but this is a way different beast. I can't seem to find it anywhere.
Any help is much appriciated.

 

Anybody?

 

I would check the vapor canister purge valve, and vapor canister itself, along with the associated vacuum lines. I would also check vapor return lines to the fuel tank for kinks, breaks blockages etc... I suspect that there is someting amiss in the evaporative emissions control devices.

The fuel can only get in through the carb (unless the new pump has a defect). and since you have replaced the carb, then it has to be in the evaporative emmisions control components, wich are attatched to the carb.

As for timing, I THINK you can jump the diagnostic terminals of the ALDL and set the base timing. BUT and that is a BIG BUT, I don't remember for sure.

Look in a factory service manual or a Chilton's for the exact way to do it.

The factory manual would probably be the best bet to address both of these situations.

 

To set the timing on a CC carb car, disconnect the four wire weatherpack plug at the distributor. There is no separate wire to disconnect like on newer cars.

 

Thanks for the reply, Keep them coming.

I'll listen to any suggestions.