I think it sounds like a problem with the carb floats, they need adjustment,
letting warm gas through, maybe? It's worth checking up.

PerL
87 Syncro 112i

andrew swingler wrote:

> Hi,
> I know this is not a 'Vanagon' question but I'm gonna give it a shot.
>
> My friends 74 bus with a two bbl carb has a strange starting problem.
> When cold starting is not usually a problem but after the van warms up
> SOMETIMES it appears to have a fuel delivery problem.
> Symptoms:
> Van warm
> Automatic Choke flaps open
> Turn the starter, Van starts and runs for 20 seconds or so.
> Van dies and does not start when turned over
> pour gas into the carb (prime it), van starts fine.
>
> This problem happens frequently enough to make driving in the city a night
> mare! BUT it does not happen all the time and it seems the hotter the
> temperature outside the more frequent the problem.
>
> ANyways I have now been kindly asked to fix it. I am thinking:
>
> a) intermittent fuel pump...hmmmm its mechanical so I doubt it.
> b) fuel filter......but it runs fine when started, up and down hills
> c) some vapor lock problem.....???????
> d) some carb issue.........advice????
>
> Short of taking the entire fuel system off (its from the east canada so
> the chasis is RUSTY) and putting it all back on again I really don't know
> where to start.
> I have inspected the filters and purged the hoses.....
>
> ANy suggestions??
>
> my friend thanks you in advance
>
> ANdyS
> Vancouver BC