Sears Eska model fuel pump element?

[Beek14]

I have a 1970 3 hp Sears model 217 58540 made by Eska. I pulled off the carb, and on the back of it there is a slot which is empty. It is the same slot as on my 15 hp Gamefisher, also made by eska where the fuel pump element is located. The difference is, on the sears it is empty. I'm wondering if there is supposed to be the fuel pump element in the sears motor and it is not there. That would solve some problems I'm having but curious why it isn't there. Anyone know?

 

[Capt Ron]

Re: Sears Eska model fuel pump element?

The 3hp has an onboard fuel tank? Really don't need the fuel pump bladder for gravity feed. The 15hp sucking gas from an external can however needs a fuel pump.

Capt Ron

 

[Beek14]

Re: Sears Eska model fuel pump element?

Ah good point. But I'm still wondering why that slot is there with nothing in it and it is set up the same way..

 

[Capt Ron]

Re: Sears Eska model fuel pump element?

It's possible that someone removed or left out the bladder while working on the carb in the past.

I have a 3hp Johnson that has the internal fuel tank only and there is a pump integeral with the carburetor bowl/fuel valve. That little 3/4" long 1/4" bladder cost me $10.07 + $7.95 shipping 400 miles. That's outragous and I contemplated removing the check valves so the the fuel could free flow by gravity.

If the bladder for that Eska is as pricey then it's easy to see why it's missing.
Have you tried the usual parts websites listed in so many of the posts here; Discount Marine, Sears....

Also, compare the gaskets between the two motors, is the cavity on the 3 blocked off? How does the crankcase pulse get to the chamber? On the Johnson a hose connects a fitting on the crankcase to the carburetor. To convert to gravity flow this link needs to be blocked, you stated that there is a problem with the way this motor runs. Maybe the the pulses are getting into the carburetor and disrupting the fuel flow.

Just thinking out loud again,
Capt Ron