Apollo75
Petty Officer 1st Class
- Joined
- Sep 2, 2009
- Messages
- 272
Re: Engine will not start cold
------------------------------------------------------------------------------------------------
You stated the engine runs well when finally started --- I will assume accelerator pump works as you did not mention a hesitation when accelerating.
Jb-weld is good stuff --- works okay on the outside of the plugs before the
plugs start leaking --- once they start leaking the plugs need to be removed and re-installed with a fuel resistant epoxy.
As usual verify proper choke operation.
To verify no fuel in bowl ---> I would remove the carburetor top and check for
fuel --- then put two screws back in and start it ---- shut it down and remove the top again to verify correct fuel level ---- while you are there maybe install a alcohol resistant pump cup if not installed with the rebuild.
If the carburetor was dry of fuel before starting after a couple of days ---> then the fuel is leaking out of the bowl somewhere and the carburetor needs to be removed, inspected, and pressure tested the same as in the article with the Q-jet.
If the fuel level is low ---> then this small amount of fuel may not be enough for the accelerator pump with some evaporation in a few days depending on the angle of the boat. Check float level.
My electric fuel pump will not start until oil pressure is up --> my oil pressure comes up enough at engine cranking speed to start fuel pump. I would not interfere with this safety feature. I would try to find and fix the problem.![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Best of luck
OFM
-------------------------------------------------------------------
It has a Rochester 2Barrel carburetor. I was in the
car/truck repair business ofr over 45 years prior to retirment and I know what
you are saying about the plugs leaking but when they leak you see some stains or whatever, right? When this carb was taken off and cleaned and overhauled no evidence of leaking plugs even though my technician did reseal as insurance with JB weld. The original issue of not starting cold was the reason we removed the carburetor and had it overhauled.
What do you all think about installing a "momentary" swith push button type
wired into the fuel pump so it can be pushed and the fuel pump will pump gas to the bowl so it will start? Does this make any sense or is it dangerous. Any
suggestion will be appreciated.
Thanks,
RDTENN
------------------------------------------------------------------------------------------------
You stated the engine runs well when finally started --- I will assume accelerator pump works as you did not mention a hesitation when accelerating.
Jb-weld is good stuff --- works okay on the outside of the plugs before the
plugs start leaking --- once they start leaking the plugs need to be removed and re-installed with a fuel resistant epoxy.
As usual verify proper choke operation.
To verify no fuel in bowl ---> I would remove the carburetor top and check for
fuel --- then put two screws back in and start it ---- shut it down and remove the top again to verify correct fuel level ---- while you are there maybe install a alcohol resistant pump cup if not installed with the rebuild.
If the carburetor was dry of fuel before starting after a couple of days ---> then the fuel is leaking out of the bowl somewhere and the carburetor needs to be removed, inspected, and pressure tested the same as in the article with the Q-jet.
If the fuel level is low ---> then this small amount of fuel may not be enough for the accelerator pump with some evaporation in a few days depending on the angle of the boat. Check float level.
My electric fuel pump will not start until oil pressure is up --> my oil pressure comes up enough at engine cranking speed to start fuel pump. I would not interfere with this safety feature. I would try to find and fix the problem.
Best of luck
OFM
-------------------------------------------------------------------