1.6 na not starting after timing belt change

[pyro7890]

i changed my timing belt after putting a rebuilt head on it and i go everything done and had it running. i drove it 14 miles to flush the coolant, got the old coolant flushed and put some g 12 in and i came back about a week later after i got it registered and it will not start. it seems that i am getting fuel i have some fuel at the injectors i took the injector line off and it was dribbling, i though it should have some decent pressure tho? the glowplugs are working also.
i did put bio diesel in the tank to i think maybe i gummed up the fuel lines but am unsure. no fuel flowing through the injector return lines tho. also a lot of white smoke out the exhaust
thanks for looking

[Thezorn]

sorta same thing happened to my friends car. Did you have the injection pump out? or is there anyway the pump timing could be out? Also a gummed up pump will do that, if you have really old jelled up fuel then it could definatley be cleaned.

[pyro7890]

no i checked the pump timing a few times and i did have the car running its just when i came back to it it was not. i suspect the fuel lines may be gummed up. is there a fuel pump in an mk1 or does the injection pump pull the fuel from the tank?

[theman53]

pulls from tank.
Jumper fuel line from a clean fuel tank would eliminate the lines if you ran one.

[pyro7890]

what do you mean by a jumper line?

[dennis]

Just take the line from the filter and stick it in a container of fuel.

[81 vw pu]

I've been running home-brewed bio-diesel in my vw caddy for about 5 years. I don't think you've plugged a line after 14 miles on biodiesel. It is possible. but I would suspect the filter would be the first thing to plug up. Bio-diesel is a solvent that will clean your fuel system and degrade any rubber lines, but again after 14 miles and only one week I don't think this would be a problem. When you say glow plugs are working, do you mean you have power to them or have you taken the buss bar off and checked each one with a test light or ohm meter. Also what temp was it when you tried to start your car, as bio-diesel gels at a higher temp than diesel. I stop running bio- diesel as soon as temps get below 32 degrees which was about a mounth ago here in wa. state. My best guess if you have fuel at injectors and belt timing is on, I would check glowplugs.

[pyro7890]

i did take the fuel hose off the filter and stuck it in fuel and it still did not work. i am suspecting that it is possible the biodiesel brought all the petroleum gunk that has been in the fuel tank up to the injection pump. i am slightly concerned that the injection pump is not putting any pressure out at the end of the line

[pyro7890]

turned out that the injection pump was not primed