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2farmron 09-17-2012 20:52:46 65.182.238.97 Report to Moderator	I have a rear tire on my Super H where it looks like the valve core is leaking. I put air in it a month ago and it took it very slowly and it leaked back out slowly when I removed the inflator from the valve stem. I"m assuming it"s the valve core that"s leaking. I"ve replaced valve cores on car tires before, that"s no big deal, but liquid filled tires scare me because I"m betting the valve core is all corroded/rusted in there and I"m afraid of breaking the core off in there. Would it help to spray something like WD-40 or Kroil or something like that in the end of the valve stem to try to lossen it up? What do I do if I do break the core off? I"m not real keen on calling a tire shop and having them send a truck. I would rather fix it myself. Do liquid filled tires use different valve core? If they do, where do I get one? Any help appreciated! Thanks, Ron [Reply]   [No Email]
2farmron 09-21-2012 22:27:17 65.182.238.97 Report to Moderator	Re: Rear tire valve core in reply to 2farmron, 09-17-2012 20:52:46   I pretty embarrassed at how easy it was to replace the valve. I worried way too much. Unfortunately now there is leaking around where the tube attaches to the rim below the valve assy. Looks like the tube is leaking. I'm calling the tire shop. I'm out of my league now. Thanks all. Ron [Reply]  [No Email]
mkirsch 09-21-2012 09:50:06 64.80.110.75 Report to Moderator	Re: Rear tire valve core in reply to 2farmron, 09-17-2012 20:52:46   Just replace the whole assembly. A pair of slip-joint pliers is ideal for the task. [Reply]  [No Email]
Ol' Gimpy 09-18-2012 16:34:59 74.67.127.235 Report to Moderator	Re: Rear tire valve core in reply to 2farmron, 09-17-2012 20:52:46   Ah,the old calcium chloride bugaboo,sold me a LOT of rims over the years.ANY time you attempt to check the air in a filled tire,especially with CC solution,as said,jack the tractor up on the side you ae working with,turn the valve up to "High Noon",and replace the valve core,no use to even attempt to reuse it.You may well wish to buy a 4-way valve core tool,as you likely will need to use the puller end to remove the corroded valve core.Cores are the same on the old and new style valves.If you are careful,and with a little luck,you will be able then to inflate the tire.Then lower the tractor.If you need to remove the valve assembly,don"t twist the valve,you may then break loose the bond between the valve and the tube,then its over for that tube.Same for removing the valve retainer rings,old style brass,new style plastic.If you want to save the tube,cut them,the tube you save may be your own.Of course,always use a steel valve stem cap,or even plastic caps are better then none.As always,be careful around that CC solution,it can burn.You can always find any skin nicks when you handle it!! [Reply]  [No Email]
Nebraska Cowman 09-18-2012 07:29:06 66.252.116.102 Report to Moderator	Re: Rear tire valve core in reply to 2farmron, 09-17-2012 20:52:46   Yes, Like Old says. there is a core assembly that comes out. There are two styles, one with external threads and one internal. You need to figure out which one you have. This is the male type thread used for the last 50 years. You seldom see the female style any more (but yes I have an 806 with that style leaking now) [Reply]  [No Email]
2farmron 09-18-2012 07:44:00 65.182.238.97 Report to Moderator	Re: Rear tire valve core in reply to Nebraska Cowman, 09-18-2012 07:29:06   Thanks Guys. It"s a Super H from the early "50s but I know new tubes & tires were put on it in the early "70s after the tractor burned. I"ll need to look at it and figure it out. It sounds like it isn"t as difficult as I thought. I was really scared it was something I"d need to call a professional for. Ron [Reply]  [No Email]
old 09-17-2012 21:43:25 209.86.226.40 Report to Moderator	Re: Rear tire valve core in reply to 2farmron, 09-17-2012 20:52:46   Position the valve at the top most part of the circle it runs in as in 12 o'clock. Then slowly take the outer part of it off. It will have the core and the stem. Of course have it jacked up. The core can then be removed or if that does not work you replace the whole core/stem assembly [Reply]  [No Email]
2farmron 09-21-2012 09:29:50 65.182.238.97 Report to Moderator	Re: Rear tire valve core in reply to old, 09-17-2012 21:43:25   Sorry for the stupid question but - Can I remove the valve assembly without removing the core first? I'm sure the thing is mighty corroded and I'm thinking it's best to just replace the whole valve. I just want to save the tube and don't want to do something stupid having no experience with these. I do have the 4 way tool. And what about what Gimpy was talking about regarding just cutting it? I assume he means the valve assy. Sorry, I'm a bit confused. Ron [Reply]  [No Email]
old 09-21-2012 09:51:45 209.86.226.56 Report to Moderator	Re: Rear tire valve core in reply to 2farmron, 09-21-2012 09:29:50   The valve assembly on the rear tractor tires are a 3 part thing. You have the core which is the valve that opens when you put air in. Then you have the stem which screws into the tube and of course the tube is the most expensive part of the 3 part assembly. Yes you can remove the stem part with out removing the core first [Reply]  [No Email]