Difficult to start

[Bdog20000]

My 843, which is older, is having a hard time starting. Even with a battery charger on the battery, the starter is having a hard time turning over the engine. I took the starter off and put a battery to it and it appears to be working fine on the bench. If I spray starting fluid in the air cleaner and can get some revolutions of the engine, it will start and runs fine. Temperature isn't a factor. Has anyone dealt with this before?

 

[skidsteer.ca]

First off get a volt meter or two and take a voltage reading at the starter and on the battery while cranking. That will let you know if your wires are getting the voltage to the starter. Hopefully 12.5 volts with battery at rest and 11+ at the starter and the battery while cranking
If it passes this test, I'd suspect the starter and maybe pull it down for inspection of the bearings or have it rebuilt. I know you said it ran on the bench, here we have a great starter shop who can redo these for $75,so thats usually my next move.
Ken

 

[Tazza]

First off get a volt meter or two and take a voltage reading at the starter and on the battery while cranking. That will let you know if your wires are getting the voltage to the starter. Hopefully 12.5 volts with battery at rest and 11+ at the starter and the battery while cranking
If it passes this test, I'd suspect the starter and maybe pull it down for inspection of the bearings or have it rebuilt. I know you said it ran on the bench, here we have a great starter shop who can redo these for $75,so thats usually my next move.
Ken

A starter without a load will tell you nothing. It could need brushes or bearings, even the comutator could be out of round causing a lack of power (had this before).

 

[earmuffs]

i had the same trouble. check to see that aux hyd wasnt on by mistake.

 

[ddsprint]

i had the same trouble. check to see that aux hyd wasnt on by mistake.

hey man, u should check your glow plugs, if the enegine cranks and starts hard or doesn't want to start at all, it is most likely not the starter, the glow plugs are typically go bad after a while, check them easy to do, just take one out and check with your battery and i 2 jump wires, give the plug some juice and see if it gets red hot if not there is your problem, check them all, if the glow plugs are not working correctly it will not want to start or start very hard hope this helps.

 

[ddsprint]

hey man, u should check your glow plugs, if the enegine cranks and starts hard or doesn't want to start at all, it is most likely not the starter, the glow plugs are typically go bad after a while, check them easy to do, just take one out and check with your battery and i 2 jump wires, give the plug some juice and see if it gets red hot if not there is your problem, check them all, if the glow plugs are not working correctly it will not want to start or start very hard hope this helps.

and be careful with starting fluid, if used wrong can be the end of the engine, do not ever spray without the engine turning over,

 

[coreya3212]

and be careful with starting fluid, if used wrong can be the end of the engine, do not ever spray without the engine turning over,

New guy here, with little experience. Bought a 825 that needed a shot of ether to start it, seller said it had no glow plugs. After noticing the "cold start" button in the instrument panel and some investigation, there are glo plugs but the button was connected to the wrong pole on the switch selanoid. So pressing the button did nothing to put power to the glow plugs. After switching the wire to the proper pole, they work fine, no starting fluid required. I only add this cause checking the plugs on a battery would not have told me my problem. Good luck.

 

[Tazza]

New guy here, with little experience. Bought a 825 that needed a shot of ether to start it, seller said it had no glow plugs. After noticing the "cold start" button in the instrument panel and some investigation, there are glo plugs but the button was connected to the wrong pole on the switch selanoid. So pressing the button did nothing to put power to the glow plugs. After switching the wire to the proper pole, they work fine, no starting fluid required. I only add this cause checking the plugs on a battery would not have told me my problem. Good luck.

Thats why after you ensure the plugs are in good shape you check for power at the glow plug rail Technically you are supposed to check for power first then check the plugs.....
Glad you got yours all sorted out though.

 

[coreya3212]

Thats why after you ensure the plugs are in good shape you check for power at the glow plug rail Technically you are supposed to check for power first then check the plugs.....
Glad you got yours all sorted out though.

These forums are great. I didnt even know what a Glow plug rail was, but it makes sense. I guess I checked mine in reverse order and got lucky. I still have trouble understanding how the wire got moved to the wrong spot, but like you said, its sorted out now.

 

[Tazza]

These forums are great. I didnt even know what a Glow plug rail was, but it makes sense. I guess I checked mine in reverse order and got lucky. I still have trouble understanding how the wire got moved to the wrong spot, but like you said, its sorted out now.

Just blame the previous owner the problems caused by some owners before you get the machine can be a total nightmare! There was a guy on here with a 763 i think that the hydraulics were all messed up, it was put together wrong took ages to sort it all out! But he did get there in the end.