Have a Mahindra 3316 with 198 hours and it has got where it’s very hard to start only way it will start is with a bit of starting fluid. But once it’s cranks runs like a top! Cranks every time u hit the key ,but when it sets over night it’s back to square 1!! Any ideas will be apriciated!
3316 Mahindra
- Thread starter RDP5399
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Joe Hickerson
Silver Member
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The glow plugs would be a major suspect. Does the plug indicator illuminate when 'ya hit the key?
Sergei1
Silver Member
First have you checked the battery and cleaned connectors to eliminate it being and issue with cranking speed.
Sergei1
Silver Member
The engine doesn't always need the plugs to fire, they help heat the combustion chamber only, but it does need compress and cranking speed to generate the needed heat to ignite the diesel.
Joe Hickerson
Silver Member
I understand the plugs are not always needed. Was just trying to help; promote a little dialog with the OP...
LittleBill21
Elite Member
well i can tell ya i was messing with my glow plug connector, and the difference between 1 revolution and start vs 10 seconds and it still not starting, makes a big difference on mine
arrow
Super Member
Yes a tractor can start w/o plugs especially in warm weather. I just wouldn't make it a habit. Why spin a starter assembly more than you have to?
Check the lead wire going to the glow plugs. The connection is a weak link area on these.
Check the lead wire going to the glow plugs. The connection is a weak link area on these.
Sergei1
Silver Member
I'm glad you mentioned it and remember people post here for help so any comments can be helpful.
I keyed in having to use the starter fluid only the first time and starting ok without issue later. I'm assuming he uses the glow plugs later to start without issue.
He didn't post his location so temperature might be a factor.
Thanks for all the input yes the glow plug light comes on. I have no issue with it cranking if it sets for couple hours it fires right up quick. It’s only after it sets over night. After i get cranked for first time it will fire up rest of the day as soon as u hit the key. If that makes any sense!!
And after it sets over night i can open air bleed screw on pump has plenty of fuel running out but i see none at the injectors When it cranks over. Already had to replace fuel pump and shut off solenoid months ago. This problem started a couple months ago.
Sergei1
Silver Member
The only thing between them is the injector pump. Have you checked / tested the stop solenoid to see if it's working correctly.
Also when you replace it before did you install a new sealing washer?
What about the checking or replace the stop/load relay. if it's failing to energized or the wiring from start position to it.
Do you have the circuit diagram?
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Sergei1
Silver Member
Í just looked at a picture of what I believe is your fuel pump 31S9401810, correct me if wrong, but I don't see a screw, just looks like a seal unit. Are you talking about the fuel filter assembly?
In Mahindra parts picture they also show a controller, I can only guess what it does but without a schematic not sure, maybe someone else can help.
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Sergei1
Silver Member
If I understand correctly you've cracked the line at one of the injectors , cranked for a period of time and you still get no fuel ...correct.
The attach file might cover your problem or maybe not and some might apply while other not.
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doneill127
Gold Member
Believe you machine has the MHI S3L motor.
Had a similar issue with mine a couple years ago. Dealer stopped by and found crimp on wire connector to the glow plug bus was loose. Replaced the loose spade connector with a ring terminal. Said it’s a fairly common problem on the MHI motors. Also said the MHI motor really need the glow plugs even in warm weather.
Had a similar issue with mine a couple years ago. Dealer stopped by and found crimp on wire connector to the glow plug bus was loose. Replaced the loose spade connector with a ring terminal. Said it’s a fairly common problem on the MHI motors. Also said the MHI motor really need the glow plugs even in warm weather.
Thanks for the info I will check the connectors.
Yea doesn’t seem to help. When it sits over night I have fuel at air bleeder on injection pump but none comes out at injector when I loosen injector nut.I’m assuming I’m loosing pressure.
