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Author Topic: Dozer won't stay running  (Read 16634 times)

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Offline LeeB

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Re: Dozer won't stay running
« Reply #20 on: March 29, 2012, 12:04:54 AM »
Finally got a chance to mess with the dozer today. Not getting good fuel supply from the tank. There is some kind of valve or something that the line attaches to right below the tank. Tried to take it apart but no luck. There is zero room to get in there and work. Anybody know what this thing is? I'll try and get some pictures tommorow.
'98 LT40HDD/Lombardini, Case 580L, Cat D4C, JD 3032 tractor, JD 5410 tractor, Husky 346, 372 and 562XP's. Stihl MS180 and MS361, 1998 and 2006 3/4 Ton 5.9 Cummins 4x4's, 1989 Dodge D100 w/ 318, and a 1966 Chevy C60 w/ dump bed.

Offline LeeB

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Re: Dozer won't stay running
« Reply #21 on: March 29, 2012, 06:00:17 PM »
Finally had time and enough back to work on the dozer. Thought it was the fuel transfer pump. Started taking lines off of it and found a little screen filter right in front of the transfer pump that was almost completely clogged. That explains why it would run for a while then die. The fuel filter would slowly fill up when it wasn't runing and the could not get enough fuel to keep it full after being started. When the filter emptied, the motor died. Cleaned the little screen and now it's running like a champ. I already ordered a new transfer pump so I guess I will have a spare. Almost $200 for it. Oh well, at least it's running now. Thanks for all the suggestions and help.
'98 LT40HDD/Lombardini, Case 580L, Cat D4C, JD 3032 tractor, JD 5410 tractor, Husky 346, 372 and 562XP's. Stihl MS180 and MS361, 1998 and 2006 3/4 Ton 5.9 Cummins 4x4's, 1989 Dodge D100 w/ 318, and a 1966 Chevy C60 w/ dump bed.

Offline Okrafarmer

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Re: Dozer won't stay running
« Reply #22 on: March 29, 2012, 08:40:55 PM »
It's usually the simplest possible problem, though it often takes a lot of headache to get to it.
No matter how conventional wisdom may fly in the face of radical thought, it's still the most popular type.

Reduced to Uber Driver and a broken MS290 Stihl

Genesis Hardwood Lumber

Offline LeeB

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Re: Dozer won't stay running
« Reply #23 on: April 02, 2012, 09:02:42 AM »
Well, just thought I had the problem solved. Went down to push some gravel a little further down the creek so it wouldn't be so soft getting across and the dozer died in the middle of the creek. Managed to get it started up again and get it out of the creek. Cracked open the fuel lines and not getting good flow. Checked the little screen and it was clean. Started cracking lines back toward the tank and still not getting good flow. Made it all the way back to the tank and had to remove the shut off valve. Found a piece of what looked to be cedar bark stuck in the valve. access to this valve and the fuel line connection is through about a 3 1/2" hole. Took me about an hour to get the fuel line lined up and reconnected. Figured all was good. Fired up and went back to the creek to straighten up the mess I had made and she dies again.  >:(
Took the fuel line loose again to check for flow, nothing. (didn't take it loose at the tank) Managed to blow the blockage out but i guess I'm going to have to figure some way to clean out the tank. I have no idea how it got debris in there through the screen at the filling inlet.
'98 LT40HDD/Lombardini, Case 580L, Cat D4C, JD 3032 tractor, JD 5410 tractor, Husky 346, 372 and 562XP's. Stihl MS180 and MS361, 1998 and 2006 3/4 Ton 5.9 Cummins 4x4's, 1989 Dodge D100 w/ 318, and a 1966 Chevy C60 w/ dump bed.

Offline Okrafarmer

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Re: Dozer won't stay running
« Reply #24 on: April 02, 2012, 09:42:46 PM »
Could be sabotage, doc. Just throwing that out there. It is awfully strange to get a big piece of bark down in there. Someone would just about have to do it on purpose since as you say there is a screen in the fill opening. Same as on the JD 350C I use.
No matter how conventional wisdom may fly in the face of radical thought, it's still the most popular type.

Reduced to Uber Driver and a broken MS290 Stihl

Genesis Hardwood Lumber

Offline Al_Smith

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Re: Dozer won't stay running
« Reply #25 on: April 02, 2012, 10:31:24 PM »
Oh yeah .I had a buddy that mysteriously had an old D2 with a tank full of fiberglass insulation .BWIW those oldies had a big heavy duty screen too before the fuel got to the tank which won't jump out all by it's lonesome .

Offline Okrafarmer

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Re: Dozer won't stay running
« Reply #26 on: April 02, 2012, 10:43:25 PM »
It may have been a kid, just messing around, not really intending any harm, just either not knowing better, or just getting a sudden urge to do it and see if anything happens. Been there, I was a kid for way too long....
No matter how conventional wisdom may fly in the face of radical thought, it's still the most popular type.

Reduced to Uber Driver and a broken MS290 Stihl

Genesis Hardwood Lumber

Offline Al_Smith

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Re: Dozer won't stay running
« Reply #27 on: April 02, 2012, 11:01:13 PM »
Well I don't know much about what I consider newer dozers .The old Cats though had a transfer pressure guage that would pretty much tell you if you had clogged filters,junk in the lines etc .

Neat think about pony crankers is if it died in the middle of the creek you could walk it out with the pony motor .I somehow doubt you could move one very far with an electric starter motor .

Offline LeeB

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Re: Dozer won't stay running
« Reply #28 on: April 02, 2012, 11:38:13 PM »
Drained the tank and fitered the fuel a few times and got a little bit of scale out. Tried to run it and died in about 5 minutes. Drained it again and took the fuel line loose at the tank again. Pulled the fuel shut off valve and found another piece of crud stuck in there. I suspect it was there from before and I just hadn't gotten all of it last time. Took about an hour to get the fuel line back on. Hard to do when there is only about a 3 1/2" hole to gat to it. Has to be lined up just right. The air was quite blue around me. Let it run about an hour after getting it all back together. Hopefully it's good this time.
'98 LT40HDD/Lombardini, Case 580L, Cat D4C, JD 3032 tractor, JD 5410 tractor, Husky 346, 372 and 562XP's. Stihl MS180 and MS361, 1998 and 2006 3/4 Ton 5.9 Cummins 4x4's, 1989 Dodge D100 w/ 318, and a 1966 Chevy C60 w/ dump bed.

Offline Okrafarmer

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Re: Dozer won't stay running
« Reply #29 on: April 03, 2012, 12:45:08 AM »
Has to be lined up just right. The air was quite blue around me.

Don't tell me your dozer is burning oil.  :-\
No matter how conventional wisdom may fly in the face of radical thought, it's still the most popular type.

Reduced to Uber Driver and a broken MS290 Stihl

Genesis Hardwood Lumber

Offline LeeB

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Re: Dozer won't stay running
« Reply #30 on: April 03, 2012, 12:57:12 AM »
 :D No, I was talking about all the foul language coming from me.  :D
'98 LT40HDD/Lombardini, Case 580L, Cat D4C, JD 3032 tractor, JD 5410 tractor, Husky 346, 372 and 562XP's. Stihl MS180 and MS361, 1998 and 2006 3/4 Ton 5.9 Cummins 4x4's, 1989 Dodge D100 w/ 318, and a 1966 Chevy C60 w/ dump bed.

Offline snowstorm

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Re: Dozer won't stay running
« Reply #31 on: April 03, 2012, 06:55:04 AM »
is there any rust in the tank?? i had rust trouble when i first got this cat excavator. went thru the same thing as you are. i used 2 magnets hooked to a wire so i could take them out . put them in the fuel tank along with a clear in line filter from the tank to transfer pump


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