28 sedan carb help?

Baileigh Inc

Baileigh Inc

Member
Hello gang!

After putting 250 miles on the 28 over the past couple of days I am in complete love with the car. Drove it home last night and parked it in the garage. This morning it started then slowly died and would not fire back up.

I am getting gas to the carb, the filter is brand new, so I removed the bottom of the carb and blew everything out. No dirt, totally clean. I had an old timer with me that knew what he was doing sorta so he did most of it.

The bowl was dry as a bone so he monkeyed around with the float and walla!!...it started pissing gas all over. I t was beautiful! :cool:

Put everything back together and she fired right up......for about 30 seconds until all the gas in the bowl was used up.

Not sure where to start as I am not a carb guy.

Anyone want to lend a hand?
 
Hi:

I would disconnect the line from the gas tank (sediment bowl) to the carburetor and make sure you have a good flow of gas. If the flow is ok, check to make sure the valve above the float is not stuck.

Henry's 31
 
Sounding like the "alcohol in the gas" syndrome and you have a float valve needle which includes a Buna-N tip (which is a good setup EXCEPT for the alcohol in the gasoline now which softens and makes the Buna-N "sticky".)

I have a John Deere 110 tractor that was my Dad's back in the 1970s. It has a 10hp Kohler engine and it's like the Model A in that it's gut level mechanical simple.

And it has a Buna-N tipped needle in the carburetor.

I give the carburetor a good rap with a hammer handle at the beginning of each operating season - mostly it doesn't happen to hang up the rest of the year. But I know what to do if it does.

You don't say your carburetor make but likely you can buy a modern viton tipped float needle for use with that carb and new gas.

Hope this helps,
Joe K
 
Joe K said:
Sounding like the "alcohol in the gas" syndrome and you have a float valve needle which includes a Buna-N tip (which is a good setup EXCEPT for the alcohol in the gasoline now which softens and makes the Buna-N "sticky".)

I have a John Deere 110 tractor that was my Dad's back in the 1970s. It has a 10hp Kohler engine and it's like the Model A in that it's gut level mechanical simple.

And it has a Buna-N tipped needle in the carburetor.

I give the carburetor a good rap with a hammer handle at the beginning of each operating season - mostly it doesn't happen to hang up the rest of the year. But I know what to do if it does.

You don't say your carburetor make but likely you can buy a modern viton tipped float needle for use with that carb and new gas.

Hope this helps,
Joe K
Click to expand...


Here is mine

20131207_091217_zps8409f712.jpg
 
I have had the bottom of the carb off 3 times today and when I push the float up with my finger at rains gas, then when I put it all back together ot runs for 30 seconds and dies.
 
If thats the case how hard do you have to push could be sticking or does your float ....float... or can you here swooshing inside ...it might be sinking those are the only two things that can be going on
 
Baileigh Inc said:
I have had the bottom of the carb off 3 times today and when I push the float up with my finger at rains gas, then when I put it all back together ot runs for 30 seconds and dies.
Click to expand...

Possible hole in the float, letting gas in, and weighing down the float??
 
if the float was heavy // filled with fuel the carb would be doing the opposite and flood.
your float valve could be sticking
other things to ck
the fuel line could be pushed to far past the ferrules on either end
restricted inlet screen on the carb
float could be hanging up on the float rod

you say that when you push up on the float it rains gas that should shut off the fuel when pushing upwards
 
Last edited:
Update....

Took the entire carb apart, cleaned it all, blew it out and we are on the road again!

My first time doing this...kinda neat.:cool:

Thanks for all the help!
 
Try tapping it with a hammer handle?

Works for the John Deere.

You can check your float for leaks. Boil a cup of water and then carefully (don't burn yourself) plunge the float into the boiling water. A leak will show as a line of air bubbles trailing to the surface.

Joe K
 
Joe K said:
Try tapping it with a hammer handle?

Works for the John Deere.

You can check your float for leaks. Boil a cup of water and then carefully (don't burn yourself) plunge the float into the boiling water. A leak will show as a line of air bubbles trailing to the surface.

Joe K
Click to expand...

I am a little confused, what will that hammer do. I think maybe its that valve above the float that might be sticking.
 
On the John Deere, the vibration of the hammer impact is enough to "shake" the buna-n tipped float needle loose and allow gas to pass. Well, at least until the next time the tractor "sits" and the gummy rubber tipped needle has a chance to re-adhere to it's seat.

The viton tipped needle is the permanent solution. They didn't used to have one for the John Deere.

Joe K
 
dont use the jets from the suppliers they are not calibrated properly
call renners and buy a set of calibrated jets, viton valve and float tool..
you may have to ask for the valve on the phone not sure if they show it on there site..
cancel your mikes order
here is what you want
 

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For those who have trouble with the float valve sticking closed, you might try shutting off the fuel valve and let the carb run dry, then turn off the key.

This will leave the float valve in the open position.
 
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