Air cleaner vs radiator hose

Nick m

Member
Is there a difference? I slapped a piece of radiator hose on I had laying around between air cleaner and carb on my allis B. I've been having starting issues and it looks like there's little pieces of hose in the carb. The hose itself seems sticky and you can get some off running your finger across it, like what little gas gets on it is deteriorating it.
 
If you're running gas with ethanol it may be deteriorating the hose,the newer hoses are made for the newer fuels,I had a similar problem on my 64 International pick-up and replaced the fuel line because it collapsed and caused a lack of fuel,the NSRA had an article in one of their recent magazines about this problem with the older vehicles.Just a thought.
 
Yes most radiator hose does not hold up well to gas. Even worse is the alcohol in much of the gas we have now days. Over time it will also get hard and shrink and be hard to get on and off the carb and air cleaner
 
Sounds like you used some old hose, which probably didn't help. Auto supply should have a selection of straight hose stock. Whatever they call it, if you start out new, it should be OK.
 
Some tractor parts sites have the gas-resistant aircleaner hose listed with the carb or aircleaner parts. I haven't taken the time to see if this site has the right stuff.
 
If there is gas getting there to make a hose deteriate then you have other problems because if things are good otherwise there will be NO gas getting to that hose. Sounds like hose was already going bad before you put it on. Only air to get in that hose so unless carb is overflowing only way for gas to get in there.
 
I have done it many times, no problems.

Radiator hose is made from EPDM which is MORE tolerant of gasoline/oil/water than is Neoprene.
 
(quoted from post at 16:14:16 03/17/18) I have done it many times, no problems.

Radiator hose is made from EPDM which is MORE tolerant of gasoline/oil/water than is Neoprene.

Should have said it is more tolerant of heat and water but should have no issues with gasoline fumes.
 
How old and decayed was the radiator hose????? Rubber radiator hoses are usually heavier than air intake hoses.
 
IH always used same bulk hose for radiator and air cleaner on letter series up through Farmall 560. Some where in the 60's or so , IH switched their bulk line of radiator hoses to a more flexible hose to reduce vibrations,( I guess) to radiator. That hose, when used at the carburetor to air cleaner would turn to mush. Guess what, they changed back. No problem.
 
(quoted from post at 15:47:28 03/17/18) Is there a difference? I slapped a piece of radiator hose on I had laying around between air cleaner and carb on my allis B. I've been having starting issues and it looks like there's little pieces of hose in the carb. The hose itself seems sticky and you can get some off running your finger across it, like what little gas gets on it is deteriorating it.

Radiator hoses are defined by industry spec SAE J20 and are always EPDM rubber which is NOT compatible with gasoline, oil, diesel, or any petroleum based fluid. A coolant hose will say SAE J20R1, J20R2, J20R3, J20R4, or J20R5 (R5 will have a helical wire embedded in hose construction to handle negative gauge pressure.

What you want is something that is SAE J30 hose which will have a nitrile rubber or some variant of that polymer as inner and outer cover which is compatible with petroleum products including gasoline. R30 has 14+ different hose constructions in the spec with some of them being nearly identical so manufacturers will lump them together.

I sit on this committee at SAE to develop and maintain these specs,and just last week a task force was opened to review adding some additional performance testing as part of the material requirements.
 
(quoted from post at 15:47:28 03/17/18) Is there a difference? I slapped a piece of radiator hose on I had laying around between air cleaner and carb on my allis B. I've been having starting issues and it looks like there's little pieces of hose in the carb. The hose itself seems sticky and you can get some off running your finger across it, like what little gas gets on it is deteriorating it.

Nick this very site DOES list a variety of "air cleaner hoses".

What tractor are you working with?

http://www.yesterdaystractors.com/c...R CLEANER HOSE&firstrec=26&lastrec=50
 

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