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Farmall 100, 1954 - 1973

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need help!

Wed Nov 18, 2009 5:14 pm

Anyone got a good way to get stuck jets out of a Farmall 100 Zenith carb? Soaked for week in carb cleaner(Gunk),soaked for week in PB Blaster,won't budge. Will heat damage carb? Thanks

Re: need help!

Wed Nov 18, 2009 5:29 pm

Is this the main jet accessible from the back of the carb :?: If so make yourself a screwdriver that fits the slot pretty tight the full width across. If it's the idle circuit jet grind a small screwdriver for the same fit.

Re: need help!

Wed Nov 18, 2009 6:16 pm

Donny I have tried good fitting screw drivers with a wrench on square part of driver ,won't budge. I was trying to help a friend out since I have rebuilt my Cub's carb and my uncle's Cub carb,with no trouble. These are really tight!

Re: need help!

Wed Nov 18, 2009 6:27 pm

I guess I'd try soaking them with KROIL for a day or so.

Re: need help!

Wed Nov 18, 2009 6:39 pm

Before going the ole heat route,---keep in mind that the carb body is luni!---heat can warp them pretty easy!---My question is---WHY are you taking them out?---there is nothing to be gained by removing them!----just soak them with good strong carb cleaner, poke a wire thru them, then blow them out with 175 psi air blow gun!---works every time and nothing gets brok off! thanks; sonny

Re: need help!

Wed Nov 18, 2009 7:59 pm

My friend kind of messed up the jets before I got the carb.I'm not so sure they will work properly now,but I might give it a try anyway. Thanks

Re: need help!

Thu Nov 19, 2009 11:48 am

OOOOPPPPSSS!!!!---yea! now I see a need for removal!---I dont think easy outs will do the job!---might have to use hand drill and VERY carefully drill part of them out,--then get in there with a sharp pointed pic and clean the threads out---a little heat MIGHT work, but dont overdo it!!! LOL!!!----Put atf/diesel mix around the jets then heat that a bit ---yea it will burn, but it also gets in under the threads ! do this several times and keep trying to turn/wiggle them a little.
sometimes this will loosen them up! thanks; sonny

Re: need help!

Fri Nov 20, 2009 9:08 am

Thanks for the help. Will try suggestions this weekend.Will let you know if I have success.

Re: need help!

Mon Nov 23, 2009 2:39 pm

I was able to remove jets with heat from soldering iron . I heated up jets with tip and sprayed kroil around jet let cool and repeated several times. Then they backed out.Thanks for the help,guys!

Re: need help!

Wed Nov 25, 2009 1:52 am

That is an interesting idea on how to pin-point heat on something.Nice idea!!!! :shock: :shock: I should have put more thought into that.Kevin

Re: need help!

Wed Nov 25, 2009 3:33 pm

KETCHAM wrote:That is an interesting idea on how to pin-point heat on something.Nice idea!!!! :shock: :shock: I should have put more thought into that.Kevin


It amazing the things people think up to solve a problem....when I heard put heat on it....I could picture it all melted....very great idea...and it's stored in the vault.
Robert

Re: need help!

Wed Nov 25, 2009 7:01 pm

you might try soaking it with GIBBS penetrating oil, ive had good luck with it :D
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