Repaired 8N stalling when trying to open up the throttle (yes, me again)

[PorkChopsMmm]

I ask because I tried it as full turns, as you describe, and it ran worse. I was thinking I was making too large of changes. I will try again tonight and will also spray some starting fluid where the carb meets the manifold to make sure the vacuum leak is gone.

 

[Oldtractorfixer]

Also check intake manifold to head area for vacuum leaks

 

[PorkChopsMmm]

OK, checked for vacuum leaks and there are none. I started fresh with the carb and with 5 turns for both the air and main needles it started to run OK. Not great at high RPM -- but OK. Once I got the throttle in a good spot I dusted off the snow and head off to plow the road. I never adjusted the throttle but she worked well and provided plenty of power to get the road clear.

Thanks for the help, guys. I will keep my eyes out for a new carb if she can make it through winter without another major breakdown.

 

[Soundguy]

5 turns of the main? you have a fuel restriction.. or VERY dirty carb.. or no venturi.

5 turns of the air?

Are you seeing an issue here.

turns OUT on the main enrich the mix.

turns OUT on the idle LEAN the mix.

yer carb is fubar....

 

[DJ54]

"yer carb is fubar...." :laughing:

 

[Soundguy]

he's leaning out one circuit and way over enriching the other. and needing that much adjustment means fuel system desperately needs help.

 

[Oldtractorfixer]

New carb from Steiner $156.00 FDS018 - CARBURETOR
It's only money Isn't owning tractors fun.

 

[Soundguy]

Antique Tractors - Yesterday's Tractors : Parts and Online Community

has these:

Ford 8N Carburetor (8N9510C)

134$

 

[DJ54]

$124.52 here, w/free shipping. Free Shipping 8N9510C New 2N 8N 9N Ford Tractor Marvel Carburetor Carb Assembly | eBay

I LUV shopping on the internet..!!

 

[2Njohn]

I remember when I had a similar issue with my 45 2n it was stalling and losing power loaded or unloaded it ended up being the cheap points I bought and the timing was off because the points were so poorly made.