Master Model A Mechanic Bob Guimarin on Zenith Carburetors
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- Опубликовано: 14 окт 2024
- Ford Model A Master Mechanic Bob Guimarin on Zenith carburetors at the June 2020 Sonora A's tech seminar.
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December 1960 I had graduated from highschool and wanted a model A because my brother-in-law had one. I bought one in parts, the body didn't have a firewall or fuel tank. I got a new tank and by July I was driving it to work. I never had any trouble with it. It stayed on blòckß in a garage during college and I drove it in the summer. Wonderful memory.
Awesome
OUTSTANDING VIDEO! I just love these wonderful elder folks who share their lifetime of wisdom...
Yes, he is a treasure. I learn something new every time we do something together.
I didn't realize Bob was 90! Wow he looks good! Paul get this man in front of a camera talking as much as you can, he's truly a treasure, and once he's gone everything he knows leaves with him and is gone forever. Ha! Download his brain and save it!
92 now.
I feel honored to have seen this video and met this man.
Thank you! Show up at Pizza Plus in Jamestown on Tuesdays and have lunch with him.
What a treasure to have someone like him to learn from!
Yes!
You got to love this guy, he reminds me so much of my grandfather whom could fix any of those old cars and areo engines.
He's amazing
That's really fantastic getting to see a master ply his trade.
This is awesome! It's great to see Bob. I hope he is still doing OK.
WOW he's 90 years old! I would never had guessed! Good on you Bob!!
He's 91 now.
I thought he was only 89
I'm sure he's forgotten more about model A's than most of us will ever know
Got my model A monday i dont know what carb is on it but in a junk box he gave me i found a beautiful complete Zenith-2 carb. Think ill clean it up and use it.
Excellent! Yep, you want that Zenith on there.
I rebuilt hundreds of GM carburetors in the 70's and 80's while working for GM both computer controlled and pre computer controlled, but nothing like these. Thanks for the information 👍 and your time. Take care, Mike
Very interesting and informative video. I would have lives to hear how the guy at the end fix his fuel issue. I think I’m having a similar
Problem and that’s how I found your video. I’ll be checking out the rest of your Model A RUclips videos.
Also what a set of working hands, huh? 90 years and still going strong. Thanks for posting.
He had a clogged fuel line. The fuel tank had some rust flakes in it and they were all stuck around the outlet and into the shutoff valve. I blew it out and it ran fine.
Thanks for the reply. That was my issue also. I thought I got it all out I will flush it again.
Awesome video great to have such knowledgeable friends Bob is unbelievably sharp
Subscribed! Thank you for all of your videos. Keep them coming
Thanks for the sub!
Love all of this; it's what I know how to do!
It’s Such a shame that the experts masters and legends are getting old . A dying breed
About 20 years ago, I had a full frame off restored '36 Ford Tudor (all stock). So many people at the car shows told me it was a waste and not worth much. Everyone wants to cut, chop and make them into hot rods. We are losing part of our history and almost the only thing left are in museums. I want to buy a stock '30 Model A Pick up so that's why I'm watching him explain this and the history. Great video, thank you so much.
@@shawnn6926 Good for you! Too many guys out there ruining original cars to change them into crap sold in hop-up catalogs. You're a purist, so stand your ground and pass along that thinking for people to value cars that are in their original form.
Bob's a national treasure, fo sho.
Fo sho!
Hi Paul. Bob explain how to put together the Zenith carb. Perfectly. I'm working on a 1930 AA truck. When I took out the choke needle looks to me it was over tight because it had a endentation. At the tip.. Do you have the settings on this adjustment? Thank you Paul.
That needs to be "just snug" and no more. I sometimes leave them loose until after the carb is i stalled and THEN tighten the seat. Then, run the "needle" down to where it gets snug and back it off 1/4 turn. Then attach the choke rod.
Bob, how did you get your shortened index finger on your right hand? Reminds me of my grandpa Henry....he had the same thing because of an axe when he was a little Schaefer...
Great video, thanks for sharing.
You folks ever coat the inside of a gas tank with epoxy? Works pretty well to stop leaks in old tractor tanks to stop leaks at the mount fittings.
Only as a last resort
I detest tank sealer... I have a 1978 Harley that a previous owner used it in, but it started "flaking" and kept plugging the petcock screen so I finally had to find another set of used tanks!
I'm helping taking care of 90year young man that is VERY SMART I really enjoy this and my 90 year buddy work at Ford motor company in Louisville KY
That is awesome
Great show!
Love your videos. How can I get a set of your handouts from this seminar?
We mailed out all we had many months ago. I asked my dad if he would reproduce some. Still waiting...
As a new owner of a 31 my car has a Marvel Carb, which runs fine, but now its winter I've yet to master what it wants me to do with the Choke and the enrichment knob on it! It's all a bit hit n miss for a cold air starting!
Thank you, I enjoyed that
Glad you enjoyed it
I tried the Rustoleum Appliance paint. Gas wrinkled the paint! It's almost impossible to find good fuel-resistant paint, but I've had great results with Brodak Jet Black Airplane Dope. A small bottle will easily paint 2 carburetors. I bought it directly from Brodak since no local hobby shop carried it. They have a website; check them out.
How about sand blasting the carb casting once everything ,jets,floats, has been removed
We do normally. Didn't here for time, and it was a club seminar. What do you do while the paint dries?
The troubleshooting chart Bob showed at the end of the presentation is real handy to have to help resolve carb problems. Get a copy here: modela.org/troubleshooting.pdf
My carb has ZENITH-1 stamped on it, is the -1 significant. I did an engine s/n check, it was built on 11/18/29. I have no idea if the carb is the original one. Are the worksheets available he is using, I did see a link. Dose he ever use carb cleaner and soak the parts.
Not significant. It only gives you an idea of who made it and when. Check the Judging Standards for details.
Paul any chance you want to rebuild a carburetor for me?
Hi Jon. Several of the Model A parts suppliers offer Zenith carburetor rebuild service. Call Steve at Bert's Model A Store and see if he will exchange one for you. That's probably the quickest.
@@ModelA thank you sir!
After taking my carburetor apart, I found there was some pitting on the Venturi. Should this be smooth? Should I replace it?
Should be smooth. Just sand it down smooth again and reinstall. No biggie.
Could you possibly post a link to the handouts that were used in this demonstration?
Sorry Ken. They are not published on the web.
Lots of those illustrations are on the MAFCA website - www.MAFCA.com. Another good source is Les Andrews' book Model A Mechanics Handbook
Thank you!
You're welcome!
Pure awesomeness
Could I buy all the paperwork that was given to the people watching in the audience somehow? Thanks Paul
We don't have any more, Mark. Sorry about that.
Ok thank you Paul.
He dislikes the repro jets. Are the ones from Berts any good?
yes
Don't trust any supplier! It won't hurt to Check the jets according to the chart to make sure they're the right length and orifice size!
This video proves to me that I don't have a chance in hell of getting it right. Then the problem is finding someone this good to do the work. What's the chances of that?
Chances are excellent. You can have your carb rebuilt to these standards by Bert's Model A in Colorado.
Gostei muito
good! all good? I need Spanish translation of the video. you help me ?
¿Quieres que traduzca el hillbilly de Bob de inglés a español? ¡Es como pedirle a una mofeta que deje de apestar!
The smallest jet in the zenith A carb is .021", several times larger than a human hair.
I think he meant figuratively. He's 91 years old, cut him some slack please.
Bob doesn't look like he's even eighty yet ....
a removable jet is the most restrictive part of a passage, and as such "does not need to be removed in the rebuilding of any carburetor. Cleaning the carburetor with solvent/cleaner and high pressure air is all that is needed, the smallest hole is the jet, that is why they incorporated a removable jet. More carburetors have been destroyed by excessive disassembly for no practical reason. I equate removing jets during a carburetor rebuild to the old mechanic that scrapes the tip of his distributor rotor thinking the (conductive} brass oxidation is his problem, thus actually increasing the air gap required to allow the spark to occur.
If you do not remove the jets, how do you clean the rust and dirt particles from the passages, thus making the carburetor run reliably?
A human hair is five thousands of an inch.
0.005. As an ex machinist I measured everything.....lol
Everything??
What kind of human hair??
N
O