Valve Stems Facing In

rancher1524

Member

Equipment
Tractor LX4020 B3350SU
May 11, 2016
115
23
18
Evans, Washington
I have had my Kubota B3350SU for almost 2 years. It has 229 hours. I had a flat with my left front tire. The valve stems are facing in. I looked at my manual and Kubota says never turn the tires with the valve stems facing in, always facing out. I did some checking and by the Kubota Dealer installing the tires with the valve stems facing in can damage the spindles and bearings. My Kubota Dealer is now checking with Kubota to find out if any damage has been done. Has anyone else had any experiences with Tires installed with valve stems facing in and had any trouble.
 

bucktail

Well-known member

Equipment
L1500DT, 6' king kutter back blade, boom, dirt scoop ford disk JD212
Jun 13, 2016
1,251
189
63
MN
The problem isn't that the valve stems are facing in; the problem is that the offset of the rim is different. Someone may have flipped the rims either to match crop rows or in the mistaken belief that it will give them more stability. Flipping the rims or moving them from one side to the other if you have R1's or R 4's will move the wheel out placing more stress on the front axle and related components. If you have been using a front end loader at its max rated capacity, it's more likely you've damaged something. If you haven't been running a loader on it or have been using it for mulch and other bulky materials, I doubt you've done any damage.
 

Tooljunkie

Well-known member
Lifetime Member

Equipment
L1501,home built carry all, mini plow blade.
May 13, 2014
4,150
33
48
60
Lac Du Bonnet, Manitoba,Canada
Bucktail is exactly on point with this.
Wide or narrow front makes zero difference with stability.
It will cause premature wear on some components.
 

tbk5

Active member

Equipment
L3710, L3010, ZD1211, RTV900xt, GR2100, lots of 3pt equipment
Sep 24, 2013
181
93
28
Central AL
My L3010 with R4s was delivered with valves in on rears, out on front. 20 years and no issues.
 

2458n

New member
Jun 21, 2010
129
1
0
covington ohio
L245DT I flipped the front tires on this tractor to fit on a trailer that had on middle, only two planks running front to back. Tractor had a front loader and crushed the front wheel bearings. My fault had been warned and went ahead and did the wrong thing. Now know how the front axle is put together. Expensive mistake.
 

bucktail

Well-known member

Equipment
L1500DT, 6' king kutter back blade, boom, dirt scoop ford disk JD212
Jun 13, 2016
1,251
189
63
MN
My L3010 with R4s was delivered with valves in on rears, out on front. 20 years and no issues.
The rear axle is usually built heavy enough to run with the wheels wider. The fronts aren't
 

bucktail

Well-known member

Equipment
L1500DT, 6' king kutter back blade, boom, dirt scoop ford disk JD212
Jun 13, 2016
1,251
189
63
MN
I bought this Tractor new from a Kubota dealer and it was delivered with the Valve Stems in.
They delivered Italian wrong then. The rears can be widened the fronts shouldn't be.