Bendix-Zenith carbs??

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George Greer
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Bendix-Zenith carbs??

#1

Post by George Greer » Sat Oct 26, 2019 5:12 pm

Is it a old wives tale, or is it true that Bendix Zenith carburetors were fire hazards??

I have been searching for info about rebuilding and tuning these carbs and I have seen several post from various boards that some people say's that the carbs are basically a fire trap.........and to not mess / run these carbs.

Is that true???

Curious George



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Re: Bendix-Zenith carbs??

#2

Post by Andygears » Sat Oct 26, 2019 6:11 pm

Bendix carbs have a spring that has to be “flipped” into place when installing the float bowl, not doing so, the float sticks, overflowing accelerator pump. Any carb that leaks is a firetrap.

Andygears

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Re: Bendix-Zenith carbs??

#3

Post by RooDog » Sat Oct 26, 2019 6:13 pm

Good Lord, people will say just about anything.....
I scored a B/Z carb from eBay for less than $30, installed it on the bike just to see WTF and as a base line. Turned the switch on and was stroking it through just to find compression, and the dog gone thing started up and was running. I bought a few things to freshen it up including a factory rebuild kit with a PINK leather cup, use nothing else, new throttle bushings & seals were included in the kit too. Nobody ever mentions this, so listen up: The mid range jetting is important, forget about an adjustable main jet. The mid jet is the thin brass tube that screws in from the top. They come in three sizes, A,B & C. I wound up using the B in my 74" panny with wonderful results.
George, you might do well to replace the old Leaker Linkert, and try a B/Z. I would buy used rather than new, but then that is just me....
Take a look at this eBay carby: item number:264495318888

https://www.ebay.com/itm/Harley-Davidso ... 4495318888
Bendix Carby.JPG
The B/Z has an accelerator pump so most of the time the choke is not need even for a cold start....
....RooDog....
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Re: Bendix-Zenith carbs??

#4

Post by George Greer » Sun Oct 27, 2019 8:59 am

Fellas,

Thanks for the responses.

I have been reading up on these, and the ease of rebuilds, and parts are still readily available to make them like "new".

One thing that I read was that I could use my solid throttle cable, and won't have to change out my internals or mess with any cabling to get it to work.

I have on hand a Gary Bang intake manifold that has perfect o-ring seats, and Viton O-rings too boot. And also have a "pull" spiral for the handlebar and all I have to do is take off 2 screws and slide the push spiral off, and slide the push one on, install 2 screws, and done.

So, I am considering changing it all out. Just before weather goes to crap here in Germany, so I can be ready for spring.

I also want to remove the primary cover, and clutch basket to find out exactly where my oil seep is coming from. It looks like the seal, might or the clutch rod seal.

I would like to get all this done, so when spring does get here......its on!

Thanks again,

George

PS, I would like to add the carb that I did wind up buying is on its way to my sisters house in Georgia.

And, the other sites also mentioned getting a rebuild kit with the PINK, pump. Strange to me that someone would gripe about a carb then use it after getting it rebuilt.

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Re: Bendix-Zenith carbs??

#5

Post by FL54 » Sun Oct 27, 2019 2:21 pm

Have Bendix carbs on two shovels and never have had a problem. Simple, easy to work on.

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Re: Bendix-Zenith carbs??

#6

Post by RooDog » Sun Oct 27, 2019 2:39 pm

In my opinion the only sore point with the B/Z carb is the design of the main jet. It is physically long, and expensive, and is also a bit tricky to remove because of its captured O ring. It also does double duty of attaching the float bowl. Personally, the one, and the only one, B/Z I have experience with worked out just fine for me on my Panny....
.....RooDog....

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Re: Bendix-Zenith carbs??

#7

Post by Andygears » Sun Oct 27, 2019 10:44 pm

George, I like Roodogs inlet fitting, I have seen many varieties that were less than perfect pushing the hose against the cylinder, not a good idea.

Andygears

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Re: Bendix-Zenith carbs??

#8

Post by Bone Head » Mon Oct 28, 2019 3:34 am

They're good carbs, my pan's had one for eons. A few points...
That "pink" accelerator pump is part of the genuine Bendix rebuild kit. I've had my best results with that one. The others are junk.
Look at the bore where that pump fits. If it appears to be a bit rough you can polish it a bit. Cut a slot lengthways in a pencil and put a length of emery cloth in it. Insert into the bore and DO NOT USE A DRILL to rotate it. Use your fingers and take your time. A bit of vaseline on the main jet o-ring will ease installation and insure no damage to it.

http://zenithcarb.co.uk/

Good info in the above link.

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Re: Bendix-Zenith carbs??

#9

Post by RooDog » Mon Oct 28, 2019 6:53 pm

http://zenithcarb.co.uk/

Good info in the above link.
[/quote]

I fail to find anything here for the Harley carb, what am I missing?

Here is a PDF from the USA Zenith Fule System web site:

http://zenithfuelsystems.com/documents/ ... RS2009.pdf

But this concerns mainly Evo & Twinkies, one has to scour the interweb for good applicable info for a Panhead. But the B/Z is a simple carb and most all tuning tricks for an $&$ E model apply to it too....
....RooDog....

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Re: Bendix-Zenith carbs??

#10

Post by Bone Head » Tue Nov 05, 2019 1:55 pm

RooDog wrote:
Mon Oct 28, 2019 6:53 pm
http://zenithcarb.co.uk/

Good info in the above link.

I fail to find anything here for the Harley carb, what am I missing?

Here is a PDF from the USA Zenith Fule System web site:

http://zenithfuelsystems.com/documents/ ... RS2009.pdf

But this concerns mainly Evo & Twinkies, one has to scour the interweb for good applicable info for a Panhead. But the B/Z is a simple carb and most all tuning tricks for an $&$ E model apply to it too....
....RooDog....
Try searching by the carb's part number maybe? I think that's how I found the p/n of the rebuild kit for mine. I tried the link you posted, got nothing.

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Re: Bendix-Zenith carbs??

#11

Post by panhead » Tue Nov 05, 2019 2:49 pm

Go to 'Topic list' in the menu, choose 'Carburetor/fuel system' and click on 'B'. You'll see Bendix information.

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#12

Post by RooDog » Tue Nov 05, 2019 4:33 pm

OK, Fellas...
Click on this link, it seems to be connecting now....
Best of luck....
....RooDog....


http://zenithfuelsystems.com/documents/ ... RS2009.pdf

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