Tecumseh Carb Adapter

[rose62]

Flathead B&S carbs and tanks are getting scarce. Does anyone make an adapter to install a 5HP Tecumseh carb to a B&S? I could make one myself but I'd rather buy something nice.

 

[Thepartsguy]

The only one I know of for a tec float carburetor is 691922 and after buying it a float bowl carburetor and making a throttle you might be $80 into a carburetor swap. IF YOUR BLOCK IS NOT A THREE BOLT HOLE INTAKE BLOCK DO NOT BUY THIS

 

[rose62]

Yeah, I'm trying to adapt to an two-hole intake port. Thanks.

 

[Thepartsguy]

Yeah, I'm trying to adapt to an two-hole intake port. Thanks.

Tecumseh intake 51-0-158 is from a 5hp Tecumseh push mower with a float bowl carburetor.

Bolts to a two bolt 5hp Briggs block. You will need to make your own throttle cable. I use them for Tillotson carburetors

 

[rose62]

Tecumseh intake 51-0-158 is from a 5hp Tecumseh push mower with a float bowl carburetor.

Bolts to a two bolt 5hp Briggs block. You will need to make your own throttle cable. I use them for Tillotson carburetors
View attachment 162066View attachment 162067View attachment 162068View attachment 162069

Nice!

 

[rose62]

Tecumseh intake 51-0-158 is from a 5hp Tecumseh push mower with a float bowl carburetor.

Bolts to a two bolt 5hp Briggs block. You will need to make your own throttle cable. I use them for Tillotson carburetors
View attachment 162066View attachment 162067View attachment 162068View attachment 162069

Ordered. Thanks. Now I'll have to find a suitable tank and associated bracket.

 

[rose62]

Ok, got the intake. Fits like a glove! Now, suggestions for a tank setup to use with it?

 

[Sparkwizard]

Look at Tecumseh tanks and mounting brackets on eBay. They will hang the tank on the front of the engine, using some head bolts. You might need to redrill or elongate a hole or two. Frame mounted tanks are easy on mini bikes, but not so easy on a Kart.

 

[Hellion]

What he said . Tecumseh plastic fuel tank, the kind with a red cap. The screws do not penetrate through the top of the tank, they have “blind holes” molded there, FYI.
For example:

PartsTree - Home of OEM Parts for Outdoor Power Equipment

We are committed to providing you with the largest selection of OEM parts from the best brands, the best diagrams and part search tools anywhere.

www.partstree.com

Tecumseh 35584
Tecumseh 36247

 

[Sparkwizard]

I forgot about partstree.com. They are amazing. Did you know you could use your model number to look up a part, then click on the part and they will tell you what other model numbers used that part?

 

[rose62]

I love this intake. It's like an Edelbrock for a B&S. Amazing. However, looking at the Tecumseh carbs, it's likely that I'll have to cut a notch in the side cover for the fuel inlet hose, as the intake positions the carb immediately beside the cover.

 

[Hellion]

it's likely that I'll have to cut a notch in the side cover

I’m stating the obvious for many, but Tecumseh ran the fuel hose across the front of the engine under the blower shroud, which seems “wrong“ but at least it has a fresh supply of forced air at all times.

I love this intake. It's like an Edelbrock for a B&S.

Would love to see a photo of it installed.

 

[Sparkwizard]

You can find a Tec carb with a 90 degree inlet fitting.

 

[rose62]

You can find a Tec carb with a 90 degree inlet fitting.

Even at that, it's likely too close to work without modding the cover.

 

[Thepartsguy]

I love this intake. It's like an Edelbrock for a B&S. Amazing. However, looking at the Tecumseh carbs, it's likely that I'll have to cut a notch in the side cover for the fuel inlet hose, as the intake positions the carb immediately beside the cover.

I have never used a tecumseh carburetor with this intake I have only ever used the Tillotsons.

Really do hope it works for you and you can get the line hooked up. If it goes through a hole drilled in the metal shroud make the hole a bit oversize and run the fuel line through a rubber grommet.

The fuel line is clipped to the block under the shroud and right next to the spinning flywheel on tecumseh engines standard.

Next question is your tec carburetor is fully adjustable right? idle/high side mixture screws?

 

[rose62]

I have never used a tecumseh carburetor with this intake I have only ever used the Tillotsons.

Really do hope it works for you and you can get the line hooked up. If it goes through a hole drilled in the metal shroud make the hole a bit oversize and run the fuel line through a rubber grommet.

The fuel line is clipped to the block under the shroud and right next to the spinning flywheel on tecumseh engines standard.

Next question is your tec carburetor is fully adjustable right? idle/high side mixture screws?

I don't have a carb yet. What about the Tillotson?

 

[rose62]

 

[Thepartsguy]

I’m sure your figuring out any carb that isn’t the stock tank carburetor will need it’s own throttle cable and gas tank.

The Tillotson is ran from a fuel pump so I just run an external tank mounted anywhere I want it.

You will need the tools to make a washer for The throttle cable.


Any setup that is not stock takes a lot of doing to make work. The china Tillotsons are not worth buying and the real used Tillotsons from stilhl engines will need a rebuild kit but they work very very well.

I would look on eBay for tec H40 carburetor they are fully adjustable. you can either dent the ever living heck out of the shroud or drill a hole in it to run the fuel line.

pictured below is a tilly (Tillotson)

 

[Hellion]

Oh dear. Rose62’s new photos remind us of the “economy of space” the original engine configuration afforded with its whole tank mounted carburetor assembly situated to the rear while the plain front or right side of the engine is snug up against the seat back. The tank-mounted-carb really is a great design, better than the Tecumseh flatheads and Briggs like this:


I think that’s an updraft Flo-Jet carburetor or something like that. Love the primitive starter.

With that high mounted manifold, gravity feeding the gasoline looks like a problem. Another diaphragm carburetor or Tillotson like PartsGuy is suggesting sounds like the way to go. It’s like you’re having to reinvent the wheel... time to get creative.

While you do that, I’m going to start hoarding Briggs fuel tanks...

 

[Thepartsguy]

I do not know if you can run a stock tec h40 carburetor with a pulse pump.

I do know I have pulsed many a carburetor and besides a very very simple float adjustment have had zero issues.

I will definitely be more mindful when I recommend a carb setup. Hope i didn’t steer you wrong on this one.

I would think a pulse pump running to the h40 carburetor on your manifold with the shroud drilled for the fuel line to go through would be an ok setup.

This way you can run an external tank and it will still get fuel. The throttle cable is the next hurdle.

It’s so much modifying when stock goes out the window as SparkWizard says your basically re-inventing the wheel.