KennK
Silver Member
Yesterday I went to add air to my John Deere 3320 tractor tires - starting with the rears - which have all metal stems and caps. I've done this plenty of times with now issues.
This time when I went to unscrew the valve cap instead of just the cap unscrewing the stem unscrewed - maybe the top 1/2" or 3/4" of the nipple, and air came pouring out. Luckily I didn't have it fully unscrewed so I quickly screwed it back in and was able to remove the valve cap while holding the stem in place.
I've never seen that in a tire stem and it shocked the heck out of me.
Question: Is this two-part valve stem how the whiles get filled with fluid??? Is there a rubber o-ring in there somewhere to prevent air leakage? Of course I don't want to take it off to look at it.
The small front tires have a regular valve stem - like on my truck.
This has been a REALLY cold winter. In years past I've not worried about temperature changes impacting the wheel pressure too much, but this year the tire pressure was really down.
This time when I went to unscrew the valve cap instead of just the cap unscrewing the stem unscrewed - maybe the top 1/2" or 3/4" of the nipple, and air came pouring out. Luckily I didn't have it fully unscrewed so I quickly screwed it back in and was able to remove the valve cap while holding the stem in place.
I've never seen that in a tire stem and it shocked the heck out of me.
Question: Is this two-part valve stem how the whiles get filled with fluid??? Is there a rubber o-ring in there somewhere to prevent air leakage? Of course I don't want to take it off to look at it.
The small front tires have a regular valve stem - like on my truck.
This has been a REALLY cold winter. In years past I've not worried about temperature changes impacting the wheel pressure too much, but this year the tire pressure was really down.
