Search found 129 matches

by vestor_guy
Thu Nov 15, 2012 9:30 am
Forum: Late model JD crawler technical support
Topic: stright 450 dozer with HLR
Replies: 10
Views: 8616

OK, shims did not increase the pressure so the pump is worn or you have a substantial leak in the HLR.

If the clutches in the HLR have been slipping for very long, it may have damaged them even if the initial problem may have been the pump.
by vestor_guy
Wed Nov 14, 2012 9:26 am
Forum: Late model JD crawler technical support
Topic: Jd 350b will not go into gear
Replies: 16
Views: 14098

The clutch in a 350 is a mechanical system if I remember correctly. You clutch needs adjusted or it has failed.
by vestor_guy
Tue Nov 13, 2012 11:28 am
Forum: Late model JD crawler technical support
Topic: stright 450 dozer with HLR
Replies: 10
Views: 8616

It looks like your HL clutch disks are spinning. You can attempt to raise the pressure by adding shims under the relief valve. Make sure the filter is not plugged. If you cannot get the 145 psi, you either have a worn pump or are losing too much oil in the HLR. If you have the engine out, the first ...
by vestor_guy
Mon Nov 12, 2012 10:18 am
Forum: Late model JD crawler technical support
Topic: straight 450 oil in clutch housing
Replies: 44
Views: 41922

Without removing the engine again, you might invest in or rent one of the fiber optic scopes. Remove the left foot rest and there is a plug where the HLR linkage can be adjusted. I have never attempted it but you may be able to insert the scope and examine the front face of the transmission case and...
by vestor_guy
Sun Nov 11, 2012 7:26 pm
Forum: Late model JD crawler technical support
Topic: stright 450 dozer with HLR
Replies: 10
Views: 8616

If I remember correctly, about 60 psi is required to initiate the shifting process. The pressure should be 145psi.
by vestor_guy
Sun Nov 11, 2012 2:23 pm
Forum: Late model JD crawler technical support
Topic: straight 450 oil in clutch housing
Replies: 44
Views: 41922

Has anyone ever used a scope to check out hidden areas? I have a bore scope for my rifle barrels and they work great.

http://www.mile-x.com/provision-pv100-f ... QgodcUcA-w
by vestor_guy
Sun Nov 11, 2012 11:32 am
Forum: Late model JD crawler technical support
Topic: straight 450 oil in clutch housing
Replies: 44
Views: 41922

I would let all the oil drain out of the housing for a day or two and then operate the crawler on level ground for an hour or so and see if it loses more oil. If it does, it is not the seal on the transmission shaft. As far as I know, the souce of the oil has to be from the front of the transmission...
by vestor_guy
Thu Nov 08, 2012 11:42 am
Forum: Late model JD crawler technical support
Topic: JD 450c, having hard time, wont start
Replies: 4
Views: 4335

The injector return lines were leaking because the return to the tank is plugged up. Clean the return line and it should start.
by vestor_guy
Mon Oct 29, 2012 11:16 am
Forum: Late model JD crawler technical support
Topic: water in oil on my 450b
Replies: 23
Views: 17834

If you buy a manual, it is easy to follow and quite detailed. You will probably have about $2000 in parts plus the head rebuild. If you don't want to pull the engine and if the tractor is for hobby use, you could just drop the pan and replace the rod bearings liners and pistons. Deere sells a kit wi...
by vestor_guy
Sun Oct 28, 2012 8:26 pm
Forum: Late model JD crawler technical support
Topic: water in oil on my 450b
Replies: 23
Views: 17834

Scott, water was coming out of the exhaust. Water has to be getting into the head or cylinder. I think water in the oil is from broken rings. For your crawler to stop running, you had to have a LOT of water in the cylinder so I still think you have a hole in the sleeve. Crank the engine over and che...
by vestor_guy
Fri Oct 26, 2012 6:55 pm
Forum: Late model JD crawler technical support
Topic: water in oil on my 450b
Replies: 23
Views: 17834

It is not just an oring that can fail on the sleeve, the sleeve can actually have a hole in it. Deere has two sleeves that were in that engine. The one for a turbo had a thicker sleeve so I expect you have the non turbo sleeve. When I once overhauled a 450 loader, one of the sleeves was really close...
by vestor_guy
Wed Oct 24, 2012 1:56 pm
Forum: Late model JD crawler technical support
Topic: 350c injector pump question
Replies: 10
Views: 8738

The batteries are in parallel and it is a 12v system. If you follow the cables on any system with two batteries, a parallel system will have the two negatives connected and the two positives connected. It just increases the CCA. I always just use one battery with the most CCA. If it is cold enough t...
by vestor_guy
Tue Oct 16, 2012 12:57 am
Forum: Late model JD crawler technical support
Topic: possible source of noise?
Replies: 3
Views: 3910

Is the squeal you are hearing similar to the hydraulic relief valve?
by vestor_guy
Fri Oct 12, 2012 10:03 am
Forum: Late model JD crawler technical support
Topic: straight 450 oil in clutch housing
Replies: 44
Views: 41922

Ok, good information. The pump sounds fine. As for the clutch, it is certainly prudent to replace the disk. As for the slipping, the clutch ALWAYS spins in the same direction. The reversing is done in the HLR. My guess as the the additional slippage in reverse would be the higher gear ratio in rever...
by vestor_guy
Thu Oct 11, 2012 1:01 pm
Forum: Late model JD crawler technical support
Topic: straight 450 oil in clutch housing
Replies: 44
Views: 41922

How worn was the seal on the main transmission shaft?