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Wise owl of the month ! what a find !!!
without that gasket sealing the low speed circuit … fuel would not have been allowed to be sucked up the side channel to the upper “drip” chamber !!
and post #261195 showed it clearly !!
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Don’t know if I’m going down an unnecessary rabbit hole on this one.
Not knowing anything about fluid dynamics, and carburetor theory I have another question.
Before it was determined that the float bowl gasket was incorrect, I was searching for any differences I could find between the bowl with the casting for the choke solenoid that I changed to from a 33HP from my original bowl from my 28HP possibly causing the non run issue.
Looking at part numbers the bowl nozzle was different for the bowl with the solenoid. It had an extra hole. I picked one up. Should I use it, or did the engineers at OMC just use it because of the 5HP difference and various other changes they made to the 33?
Thanks,Bob D
side holes allow air to emulsifty the fuel .
a bigger engine probably needs more emulsified fuels hence the extra hole
yet parts diagrams are not clear on the actual amount of holes.
the pictures in the J service manual seem to show 1 hole for bigger engines….. maybe since their vacum pull is stronger 1 hole is ok while smaller hp rated engines need more side holes…. since they have less “pull vacum” on the carb.
try one hole …see what happens
theory anyway 🙂
Joining AOMCI has priviledges 🙂
Bingo, the saga has ended (37 posts later) ……….
Dave and Bill get the prize, and my unconditional gratitude for picking up the wrong gasket mistake. Hey, Bill even gave me a guarantee that the correct gasket would work!!!! That was enough for me.
I made a quick gasket out of cork, and it fired right up, and ran great.
For the life of me I don’t know where I got the replacement gasket from. I guess it looked like the correct shape, and I didn’t check parts numbers, and called it a day.
FYI Crosbyman, I also went with the nozzle with one hole.
I’ll try to post a video of the motor running.
Don’t mind the front crankcase leak. I didn’t put all of the starter brackets screws in for my quick startup.
Again thanks to everyone who gave me ideas on what to take a look at.
Bob DI think you’re going to like that motor a lot and I KNOW it likes YOU!
Long live American manufacturing!
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