NO Start issue

[Tom Jones]

Sure could use some help ...  are all the flatheads positive ground? i have a 1948 B1 ?  my generator says 12 volt on it so assumed it is not 6 V ???

[Los_Control]

good chance someone has changed it to 12 volts, pull a tail light bulb and see if it is 12 volt also.

I could only assume, if they switched to 12 volt, they also would switch to negative ground.

[Tom Jones]

thanks,   i just cant get it to start   maybe i got some stuck valves ?   rebuilt carb, turns over by hand, got spark just wont catch 

 

its doin my head in !

[Merle Coggins]

Nothing else to add as the others provided my thoughts. But also wanted to say, Nice bus...

[P15-D24]

You need fuel, compression and spark. Check for each.

Pull the plugs and do a compression check. Anywhere for #80 to #110 should run.

While you have the plugs out, check for spark. Ground it to the head and crank the engine. Should see the plug flash every second or so.

Pull the air filter, look sown the carb throat and snap the throttle open. should see a stream of gas shot down. If not, pull the 4 crews on the top cover, left it off and see if their is any gas in the bowl where the brass float sits.

Report back what you find.

You may/probably will have multiple issues in all three areas if it has been sitting for a while.  

[Desotodav]

What they said Tom !!

Welcome to the forum by the way. Would love to see more photos of that old bus, and hear of your intentions for your vehicles.

[Todd B]

Awesome bus.  It’s on my bucket list

[Los_Control]

compression check would be a great idea.

Something I learned over time, spray a little starting fluid in the carb. If it has any spark at all it will try to fire. you have a fuel issue.

If it does not change at all with the either, you have a spark issue.

I have seen new condensers go bad, get spark at the points but nothing to the plugs.