Weber gardening tips

[1QuickS]

Sometimes I get carbs that need cleaning but this is the best case I've seen for awhile. If you look closely you will NOT see the bosses in the bottom where the main jets are housed.



I collected the crud from the four fuel wells and decided to grow main jet assemblies; and from the second picture it seems that I've successfully sprouted one!

[RoninLB]

it's part of a MFI conspiracy plot

[Winter]

is that a bunch of bacon bits in there? mmmmm, good!

[RWebb]

I heard yesterday that mass spec.s are real cheap these days -- time to run that stuff thru one...

[jpnovak]

Gonna need MALDI for that sample.

Let me guess.. "its running a little lean"

[KTL]

Wow. I know you can't necessarily complain for work coming your way, but sometimes the fiascos people bring to you have to make you scratch your head and wonder how things get so messed up, no?

[mossguy]

That is a cool and rare Braniff Airways cup!

[Quickstep192]

I've got to ask a stupid question here...........

Was the car this carb came from in running condition? Jeez, if I drive by dust, my carbs clog!

[1QuickS]

Carbs are from a VERY early 1966 911 and customer wants to use engine to move car in shop for awhile before 100% restoration begins. He said engine would only run with constant throttle blipping and above 4000 RPM at that! Since mains were blocked there was no fuel delivery to main or idle/progression circuits and the only fuel delivery was from the accelerator pump jets. The intake for the accelerator pump is much higher than for the mains so fuel delivery during the 4000+ running was entirely from the raw fuel delivered from the pump jets.

For Quickstep192:

I've got to ask a stupid question here...........

Was the car this carb came from in running condition? Jeez, if I drive by dust, my carbs clog!

Most efforts to stop debris from entering the fuel bowls revolve around good fuel filters and fresh fuel lines with a tank cleaning. All these are good but there are other sources to check:

1. tank filter screen cleaned
2. vent pipes in top cover of Webers rust internally and drop flakes of rust directly into the fuel well; wire brush and apply "Extend" or equal; or remove, replate and reinstall
3. spark arrester in OEM air cleaner housing (25mm diameter, right angled tube) is a good source of rust
4. also the trough where the seals are installed will collect water, rust and pinhole after time which allows flakes to be drawn into the fuel well (I suffered this one for awhile before I found and fixed it)
5. poor sealing of air cleaner housings (OEM and after market also) with sealing gaskets allows other debris to enter your fuel well; apply a thin strip of oil resistant, closed cell, self-adhesive foam
6. spark arrester hose may harbor debris which may be drawn into the system

Assuming a well sealed and cleaned air cleaner and the other issues listed are corrected, there will still be crud entering your fuel bowl; the smallest orifice in the Weber carb is the idle jet. Anything smaller than that will either stay in the bottom of your bowl or be delivered to your engine and spit out the tail pipe. Also, the air cleaner operates with a low pressure so it is natural for atmospheric air to be sucked past poor seals and to bring crud with it.

[viejopatron]

How much for the Braniff cup?