Servicing the Webers

Disassembly:

Removed pin, floats & needle valve. After cleaning:

 New needle valve, gasket & floats:

Adjusted float levels with digital vernier gauge:

And back together.

Refurbishing the Weber soft mounts

The Weber soft-mounts needed some attention - you could see they were not making a good seal between the carburetors and intake manifold.

After soaking in Simply Green for a few hours, and some elbow-grease:

With new o-rings and mounting hardware: 

Ready to go back on.

Rejetting the Webers

I opened up the Webers last night. The floats look to be in decent shape, but the needle valves are badly worn and the Jets are undersized. I have a service kits for both carbs, but I will need to order new Jets & chokes.

Some interesting reading:

http://www.classicrallyclub.com.au/docs/Tips_tuning_Weber_carburettors_DVAndrews.pdf

Velocity stacks (aka air horns) info

Good discussion & tips for choosing the right velocity stacks for your Weber carbs:

http://www.shoptalkforums.com/viewtopic.php?f=15&t=122047&hilit=fuel+stand+off

Breather tube in

My previous attempt to install the oil breather tube ended in frustration. The rubber was too stiff and it would not squeeze into the block.

This time, I decided to employ heat and let the rubber soak in boiling water (from my Keurig machine). After three hours, it was easy to fit:

Now I need to find an oil catch tank and filter.

New oil pressure sending unit installation

1. Carbs off:

2. The original oil pressure sending unit:

3. New unit (part number 02505-00 / MEXICO):