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953 caterpillar track loader won’t start

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Bill Octavia

Member
Joined
Dec 4, 2020
Messages
6
Location
kY
Hey guys, first time posting here, any help would be appreciated.
Parked the 953 Cat Loader after using it for half an hour and went back a few days to start it and it won’t start. Diesel is getting to the engine, will crank and turn over but just will not start (will smoke a little but not start). Cleaned out fuel lines to make sure no water in fuel, cleaned all filters, so I’m thinking it’s some sort of electrical issue. Anybody point me in direction of what to try or test out next?
 
M

Mike85

Well-Known Member
Joined
Aug 15, 2019
Messages
65
Location
Ontario
Serial number? If it’s a mechanical fuel shutoff is it on fully? Fuel clear with no bubbles? Cranking good and fast. Not weak batteries?
 
I

ippielb

Senior Member
Joined
Mar 30, 2014
Messages
695
Location
Saskatchewan
Try and prime your fuel system to check for air leaks, should get firm within a couple plunges.. If the 953 is like my 973c there should be a filter housing that has your fuel filter on the starter side of the engine behind the one battery. There will be a plug that you can loosen and pump the primer if you have air.
 
B

Bluox

Senior Member
Joined
Jun 19, 2010
Messages
1,960
Location
WA state
Bill Octavia said:
Hey guys, first time posting here, any help would be appreciated.
Parked the 953 Cat Loader after using it for half an hour and went back a few days to start it and it won’t start. Diesel is getting to the engine, will crank and turn over but just will not start (will smoke a little but not start). Cleaned out fuel lines to make sure no water in fuel, cleaned all filters, so I’m thinking it’s some sort of electrical issue. Anybody point me in direction of what to try or test out next?
Click to expand...
That machine should have a fuel shutoff solenoid on the injection pump .
Look for a wire going to the injection pump.
Loosen a fuel line on the pump and crank motor to see if pump is pumping .
Bob
 
Last edited:
B

Bill Octavia

Member
Joined
Dec 4, 2020
Messages
6
Location
kY
No air in fuel line and checked the wire going to fuel solenoid and it’s pumping, still not starting
 
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Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
12,526
Location
Canada
Charge the batteries and put it to full throttle and try to start it. If it starts lower to a little higher than normal idle(1000 RPM) to let it warm up. If it doesn't start after about 10 seconds cranking, give it a 1 second shot of ether in the air intake while it's cranking. You can look into if it has a factory ether system later. You're getting smoke which indicates it's getting fuel but does appear to be cranking a little slow. I'd guess a tiny shot of ether and it will be up and running. If it fires on the ether but quits again you can give it another small shot. A couple tiny shots of ether won't hurt anything.
 
Dave Neubert

Dave Neubert

Senior Member
Joined
Jul 18, 2018
Messages
1,660
Location
Monroe NC
try pumping the hand primer at the same time crank engine I have had supply pump go bad and do this. I don't believe a 20z has a fuel sol. only Bs and Cs with 3116 had that
 
Dave Neubert

Dave Neubert

Senior Member
Joined
Jul 18, 2018
Messages
1,660
Location
Monroe NC
Looks like it is getting fuel smoking a awful lot could be head gasket blown between cylinders sounds like there is compression leaking
 
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