(update 12/21 - issue fixed; read on) hi.
just got a 55 3100.
strange carb issues (#4 below) - at least strange to me
knowledge level low about these trucks, but I am handy.
6 cyl 1 barrel carb.
so, I'm starting to check it out for the first time.
(1)
it ran kind of rough when it started so I shut it off and changed out the in line after-the-fact gas filter to a clear one. gas looks clean and flows for sure.
(2)
still running kind of rough so I turned it off, took off the air cleaner (no filter??) and blew out the carb with some carb cleaner.
(3)
still running kind of rough. messing with the pull choke helps a little, but not a lot. I am in the northeast, and it is cold here now, so i am not sure if that has a part to play. this truck cam from the southwest
(4)
if I let it run a while (like 5-10 minutes), it stalls - this has happened a couple of times now.
then when I look at the back of the carb I see gas leaked out. (pressure of some kind??)
because the leak is at the back of the carb it is hard to see 'exactly' where it is really leaking because the gas spreads everywhere so quickly. to clarify, it does not leak until it stalls like this. but, maybe it would leak without the stall as I have stopped running it for now.
if I had to guess, the leak is at or below where the silver bowl meets the part that bolts to the engine. (gasket issue?)
In the glove box I found the remains of a carb rebuild kit with a receipt dated 2013. So, I am guessing someone worked on the carb back then.
I checked out the screws on top of the carb and they seemed fine.
I found 2 large screw like bolts (straight blade screwdriver) that come up from 'the piece that bolts on to the engine' and screws into the 'bottom of the carb'. I tightened then down a tiny bit, but still have the same issue.
any ideas on the gas leak and how to correct it? (related or not related to the stall scenario). thought I would start there as gas leaking onto an engine is a bad thing.
thanks in advance.
engine was kind of noisy, so I changed the oil.
