Rear tire leak

Farmall 656

Member
I have an IH 574 with a s-l-o-w leak in the rear tire. It does have fluid in it. Yesterday, I pulled the tractor out of the shed to use and noticed the tire was soft. Also, notice dampness around the valve stem and a drip or two on the opposite side of the rim. My question, if I turn the tire to the top, can I remove the valve stem core and replace it without fluid shooting out? There may be minimal dribbling.
 
#1 you have to jack it up or you will get a lot of fluid out.
#2 even with the stem at the top your likely to get a bit of fluid out due to letting off the air pressure in the tire unless you jack it up and let ti sit till the tire goes flat so little to no pressure is in it.
#3 you can get a small piece of hose that just fits the stem pull the core and put the hose on fast and point it up higher and then back down to a bucket etc to catch what fluid comes out which is not going to be a lot if jacked up so no tractor weight it trying to push the fluid out
 
Depends how much they're filled. All mine with 38" wheels are filled a little more than half way, the way my FIL had them. First thing I do is unscrew the core (don't let it fly away) and while air is escaping I run the thread chaser all the way in then replace the core. All before it goes flat. Done it on fronts, too. 8 out of 10 times that's all it takes. Sometimes a slow leak is just from the valve core, dirty or loose. If filled to the rim height or more it won't work.
 

As Mike said it is highly unlikely that there is enough fluid for it to be up to the stem when turned up to the top. After you have gotten it done, be sure to monitor it closely because it is very likely that your problem is really elsewhere, and the fluid is really just coming out of the stem hole.
 
(quoted from post at 07:07:39 07/27/17) I have one doing that on my Ford right now but it will have to wait till I'm done with hay. It's my raking tractor.

Mike, you are probably already doing this, but anyway, I will suggest that you block it up when done for the day to minimize how much air/ fluid you lose and how much oxygen goes back in.
 
Do you jack it up before doing that?? I know on all the tires I have ever had fluid in if you do not jack it up you will loose a lot of fluid and even if jacked up a good bit of fluid will spray out with the air coming out but those where fill to max spec as per the rating for each tire size
 
I'm not blocking it up overnight. It's just a little wetness around the stem and rim. I think the tube has a leak. When the haying is done I'll get it to the tire shop. I have to work on the brakes anyway.
 

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