Hi, I have a searched the net to see if I can fix this problem but no joy. I have a 72 Beetle with a 1600, single solex Twinport bus Engine with H30 /31PCIT Crab, in. I had a problem where it would not start after running fine, I thought it was the battery so I changed it this seamed to solve the problem. A week later the beetle would turn over but not fire, I checked the points and there was gunk in there holding it open so I bought a 009 Dis with Electronic ignition and new Coil, so all the electrics are new.

after fitting them I have checked the spark it all good, but the engine will turn but still not fire I have tried loads of setting with the Distributor but still no joy, great spark but no fire. I have checked the plugs 1 and 2 are soaked in fuel but 3 and 4 are bone dry. I have open the rocker cover to 3 and 4 and there was a some fuel sitting in the rocker cover. Has anyone any Ideas.

Many thanks Mamba

 

Don't see how fuel could be in the valve cover left side, unless
the head was cracked at the intake port. If your old distributor
wasn't working, then the spark plugs will be fuel fouled, They
will have to be replaced even if they are new, you may dry them
some and sand the tips with sand paper, but they still wont run
correct. Just a good guess.......GOOD LUCK

 

Before I blew my motor it would vapor lock after running on a hot day. I would have to open the gas cap and let it air out for a bit and then turn over fine, that could be the reason for the initial problem.