Carburetor Help

[Sob Ro]

Hello,

I have recently acquired a used 839 engine, I already have two previous (One from an R4, and another from a Toro/Continental).

I assumed they where all the same, but while rebuilding/restoring this new one, I ran into a small issue. The carburetor I had used for the other two (the SOLEX 32 DIS) did not fit...

It turns out that the carburetor bolts on this particular engine measure 60mm (Center-to-Center), while the other two measure 65mm. Are there known variations to this engine, or is this is some sort of manufacturing defect???

I don't know the origin of this engine, and the bolts don't look bent or modified in anyway. I hunted around, but because this car is somewhat obscure here in the states, I wasn't able to dig up any information. All the reference material I have suggest these cars came with a Solex 26, or Zenith 28 (and the only readily available version here -is the Solex 32 -because of continental). But I can't imagine the Zenith would have a different dimension.

What am I missing??

Thanks,

 

[malcolm]

The Zenith 28 should fit. The Solex 32 has wider bolt spacing, presumably to allow for the wider bore. The inlet manifold is also different - it has larger ports for the Solex 32 carburettor.

I half recall somebody modifying an inlet manifold to accept the 32 carb. Welding up the original stud holes and drilling some new ones. The performance of the Solex 32 DIS would be equivalent to the Zenith 28IF so not much need to open up the inlet manifold ports.

 

[Sob Ro]

The Zenith 28 should fit. The Solex 32 has wider bolt spacing, presumably to allow for the wider bore. The inlet manifold is also different - it has larger ports for the Solex 32 carburettor.

I half recall somebody modifying an inlet manifold to accept the 32 carb. Welding up the original stud holes and drilling some new ones. The performance of the Solex 32 DIS would be equivalent to the Zenith 28IF so not much need to open up the inlet manifold ports.

Where does one find this Zenith 28IF?

Regrettably I received this engine without any Carb attached, so a rebuild/restore is out of the question.
I wasn't able to find one using the parts sticky, and a search on ebay only returned Solex 'type' carbs.

 

[petak]

I can find you one if you want!

Believe to have 3 or 4 in boxes.

need to check it out.

Let me know if you are interested!