Solex cross bar question

[911quest]

Does anybody have any thought on the cross bar? Looks like a Solex cross bar but no arm for the dash pot.

[NeunElf]

Well, it looks similar. Here are some photos of what I believe to be an original Solex crossbar (901.108.061.01 deflection roller complete). It came in the car with the Solex carburetors and it has operated them for years.

901.108.061.01 deflection roller complete--the air cleaner snorkel's out of position to show the crossbar

I took some measurements: it's about 45.5 cm (17.9 inches) long at the outside of the two outer arms and about 16.4 mm in diameter. I don't think Porsche used much gold cadmium or zinc during the Solex era ut your crossbar could have been replated.

There's one big difference between the crossbar in my car and the one in your picture: note the arrow in this picture.

I gave it yellow fill in this excerpt from PET:

On the left side of the car the Solex crossbar has two arms:

• One arm operates the left side carburetor linkage--it has a ball joint.
• One arm has a flat face and engages the damper.

I don't think the crossbar you found is a 901.108.061.01 deflection roller complete for a 901/01 engine's Solex carburetors.

[edmayo]

Crossbar for a carbureted ROW 914 1.7

[911quest]

Jim

The Cad plating was from me I threw it in a box of parts to get plated. I'm curious if the early Solex cars didn't have the dash pot/decal valve? I parted out a couple early cars years ago this may have been a left over. This one is also @ 17.9 inches long.

Ed,

Looks like the original carburetor 914 used a throttle cable like the F.I. cars. So I assume the cross bar would have a attachment for a cable not a rod.

[NeunElf]

Jim

The Cad plating was from me I threw it in a box of parts to get plated. I'm curious if the early Solex cars didn't have the dash pot/decal valve? I parted out a couple early cars years ago this may have been a left over. This one is also @ 17.9 inches long.

Interesting question. Here's the photo of my car again (~ May 65 build):

Chassis 301382

The 901 prototype engine from the Frankfurt Auto Show brochure had triple-barrel Solexes so it doesn't help:

October 1963 901 brochure

Here are photos from later brochures:

Red 911 Brochure, March 1965


April 1965 Brochure


April 1965 Brochure

These are from the April 1965 Issue of Car and Driver

So, it looks like the 911/901 Car and Driver tested had no damper but I think I see a damper in the photo used in the March and April 1965 brochures.

[pss]

i think the damper was for us cars only

[1QuickS]

I believe Jacques wins the prize, Solex bar without damper arm.

[Bobs 67S]

Can I stir the pot?


From three different cars 040, 133 and 149 - pretty early Oct, to Dec 1964. The paperwork says these were all Euro delivery cars.

[John Straub]

Yep, mine was a Euro car and it has the damper arm.

John

[NeunElf]

Yeah, there's no obvious reason for cars sent to the USA to have a damper while others didn't. There were no pollution controls in 1965.

Of course, there were other differences that weren't mandated: US cars usually had white foglights while amber ones were perfectly legal. Also, USA-bound cars seem to have randomly had locking or non-locking steering columns.

Interestingly, the hardcopy parts catalog [II 1/66] has only a single part: 901.108.061.01 Bell crank complete. But, doesn't the .01 imply it's a second version? Maybe a handful of very early cars had no damper.