Bendix-Zenith carbs??

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RooDog
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Re: Bendix-Zenith carbs??

#16

Post by RooDog »

The choke cable in the picture is not what I finally used with this carb. I got on eBay and located an older FX Shovelhead choke tube & wire and installed it in place of the original Linkert's choke lever on the top engine bracket. Looks just like it belongs there.... Pull out to Choke, (not hardly ever needed), push in to Run.
DSC02149 (3).JPG
Choke tube # 29221-73
Choke Wire # 29216-72
and Knob # 29214-67A
These are all 1973 FX, not FLH numbers.... There is no bracket needed on the carb as the rigid choke tube does all the stationary work.....
Hope this helps, now I've got to run, got a 100" eFeXTeCy to play with this afternoon...... Pics?
....RooDog....
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George Greer
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Re: Bendix-Zenith carbs??

#17

Post by George Greer »

Thanks for the info on the choke stuff..

JW Boon in Holland has all the parts NOS, on hand for that task.

Now.........

I took the other carb that I had got for parts out of the parts cleaner tank, and took it apart.

It's in better shape than the first one.........

It has the idle jet marked "C", 0.65mm installed and with a main jet marked C66-157, 1.10mm installed.

JW Boon once again, has all the main jets from 0.90--thru 1.25 in stock, the one I have is pretty much in the middle of the pack and I will probable order the "B" idle jet along with the choke parts.

Thanks for the info (again)!!

George

George Greer
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Re: Bendix-Zenith carbs??

#18

Post by George Greer »

OK,

I have got the choke parts on order.

Now, I have been looking into many-many posts about these carbs, and some of the sore points that people have about running one that I found are:

1: Float level

2: Fuel overflowing

3: O-ring on main jet, breaking down or tearing on installation

4: No bowl drain..

Now, here's what I am planning to do, you all chime in if I am screwing up OK.

1: Set float level properly: 3/16" with gasket in place.

2: Make sure valves closes off and everything seats properly.

3: I have looked and looked and found VITON o-rings ... gonna use them.

4: Setup bowl on milling machine and skim cut the bowl's boss to make sure its flat, drill & tap and make a sealing washer out of PEEK & install bowl drain bolt.

Thanks to all..

George

George Greer
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Re: Bendix-Zenith carbs??

#19

Post by George Greer »

Web site I stumbled on while looking for info on these carburetors.

http://xlforum.net/forums/showthread.ph ... enith+carb

Good information and with photos..

George

George Greer
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Re: Bendix-Zenith carbs??

#20

Post by George Greer »

I got the fuel bowl's boss spot faced, drilled and tapped for 5/16' x 24 bolt, and made a washer out of PEEK.

Now to get the Viton o-rings to arrive and I can put it all together.

George
IMG_2010.JPG
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RooDog
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Re: Bendix-Zenith carbs??

#21

Post by RooDog »

George Greer wrote:
Wed Dec 04, 2019 8:31 am
OK,

I have got the choke parts on order.

Now, I have been looking into many-many posts about these carbs, and some of the sore points that people have about running one that I found are:

1: Float level

2: Fuel overflowing

3: O-ring on main jet, breaking down or tearing on installation

4: No bowl drain..

Now, here's what I am planning to do, you all chime in if I am screwing up OK.

1: Set float level properly: 3/16" with gasket in place.

2: Make sure valves closes off and everything seats properly.

3: I have looked and looked and found VITON o-rings ... gonna use them.

4: Setup bowl on milling machine and skim cut the bowl's boss to make sure its flat, drill & tap and make a sealing washer out of PEEK & install bowl drain bolt.

Thanks to all..

George
G, Just my take on this....

1) I set my float a little lower at 1/4" using a drill bit as a gauge to help with #2.

2) I could not fix this intermittent problem so I simply made sure to turn off the fuel valve, and letting it idle for a few seconds, before shutting off the engine. ALWAYS shut off the fuel valve when the engine is not running, ALWAYS!.

3) The long a$$ed main jet of the Beneix carbs with its O ring has always been the sore point with these carbs for me, but since my carbby functioned so well, I simply learned to accept this as part of the deal.

4) Right on, Bro,. You got a handle on this one....

These carbs work so well that it's best to overlook the petty stuff, no? It's all part of loving these old machines. If someone thinks these are troublesome, let them have their Twinkies and spend their time and money at their local Stealership, while we fix our own stuff and keep on riding....
....RooDog....

George Greer
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Re: Bendix-Zenith carbs??

#22

Post by George Greer »

Update...

Weather got better, everything is locked up soooooooo

Bike work...

I took the M-74B, and the 4 bolt manifold, and started to install the Gary Bang manifold and original style clamps and Viton o-rings..

I had to work the manifold a bit, it was a tad too wide, sanding on a piece of plate glass with 100 grit sandpaper glued to it kept it flat.......now just with the o-rings in place the manifold stays in place and don't droop down (still a snug fit)..........I installed the orings and clamps, then moved on to installing the pull spiral and replaced the wire control with a steel braided cable.

Then the issue:

When I went to install the Bendix carb throttle lever hits the head............so, I was off to the basement shop and machined a 1" spacer...to make it fit,

well now......the throttle linkage hits the outside oiler connection, but just barely....

Does anybody have a S&S manifold to measure the overall length?

I am in the process of getting different (slightly narrower) fittings for the heads, but It is going to work..

I still need to make a support bracket for it all.

I'll get photos up later.

I was also able to install a Wagner-Lockheed brake master cylinder that I had overhauled, and removed the aftermarket chrome one...looks better.

More to come..

Youall stay safe!

George

PS... Roodog, looks like your spacer is about 1/2". Is that correct?

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Re: Bendix-Zenith carbs??

#23

Post by RooDog »

George. I too had OS Oiler heads and rather than a stack of spacers I used an $&$ mani with one 1/4" spacer. I don't have a measurement but here is a visual....
DSC02041.JPG
DSC02042.JPG
Test fitting support bracket of aluminum, final product was stainless steel with a few holes drilled for appearance sake....
DSC02149 (2).JPG
There was a small amount of interference with one of the head oiler firings, but the Dremel took care of that....
....RooDog....
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George Greer
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Re: Bendix-Zenith carbs??

#24

Post by George Greer »

Roodog...

Thanks for the photos.....

I will make it work!..

The spacer that I made was a 1 inch thick chunk of 7075-T6 that I salvaged from the scrap metal bin at my former job.

I like the way the GB manifold has the lip for the clamp to fit into and keep the clamp straight and in place.

Again thanks for the photos.

Stay safe and healthy....

George

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Re: Bendix-Zenith carbs??

#25

Post by RooDog »

G....
Off subject a bit, but those one inch spacers are expensive to buy. I sold one for an $&$ G model for $50, and bought a phenolic one from Zippers about 15 years ago for about $50 back then. It's a good thing you can fab up your own....
...RD....

George Greer
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Re: Bendix-Zenith carbs??

#26

Post by George Greer »

Here's what I made from scrap.

George
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RooDog
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Re: Bendix-Zenith carbs??

#27

Post by RooDog »

Nicely done!

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Re: Bendix-Zenith carbs??

#28

Post by panhead_kicker »

All those interference reasons on my '64, (plus some others) are why I ultimately went with the Linkert I had lying around. I went from a Mikuni to a Z-B, to a Super E before I got a reasonably reliable setup.
Anyhow, the S&S pan manifold measures just shy of 5 1/4 "
IMG_1718.JPG
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