MF 165 Issue

einn32

Well I have an MF 165 which turns over a few times when starting but then just stops suddenly with a thud like the fly wheel jams up or something. A new starter motor didn't solve the issue. Some times unburnt diesel pours out the exhaust (small hole in the bend). It eventually starts after being left alone.

Also she runs grand at idle but struggles to run smooth when given a bit of throttle.

tomwaterford

Is your ring fear damaged??


When was last time it got fuel filters?

einn32

tomwaterford wrote: »

Is your ring fear damaged??


When was last time it got fuel filters?

No idea what the first questions is about!

Two months ago.

tomwaterford

einn32 wrote: »

No idea what the first questions is about!

Two months ago.

Is where starter engages the flywheel damaged can cause tearing type noise usually??


Maybe o-rings not in right on fuel filters or dirt etc in tank??

discodaveirl

einn32 wrote: »

No idea what the first questions is about!

Two months ago.

Have you ever used easy start on this tractor?

White Clover

discodaveirl wrote: »

Have you ever used easy start on this tractor?

I was going to say that. Sounds serious.

t3tac

Is the heater for engine connected check this first. It could be issue with injectors leaking diesel into one cylinder to check loosen studs holding injectors and pry them up a little( after tractor being idle for a while) and spin engine with stopper in, if there is diesel in the cylinder it will blow up by injector.it sounds that there is diesel leaking in to one or more cylinders.

einn32

tomwaterford wrote: »

Is where starter engages the flywheel damaged can cause tearing type noise usually??


Maybe o-rings not in right on fuel filters or dirt etc in tank??

Flywheel has wear but not unusual. No tearing noise.

She had this issue with old fuel filters too. I might get the tank off and empty it to see.

einn32

discodaveirl wrote: »

Have you ever used easy start on this tractor?

No l never have anyway.

einn32

t3tac wrote: »

Is the heater for engine connected check this first. It could be issue with injectors leaking diesel into one cylinder to check loosen studs holding injectors and pry them up a little( after tractor being idle for a while) and spin engine with stopper in, if there is diesel in the cylinder it will blow up by injector.it sounds that there is diesel leaking in to one or more cylinders.

I'll check it but it should be connected. Thanks I'll check out the tank first and if nothing try this.

larthehar

I would be inclined to think that the valve clearances are off or there is an issue with timing if you have unburnt diesel spilling out.. if you are taking off the tank you could check them handy enough..

r4110

Sounds like the heater plug is leaking diesel into the cylinders hydrolocking the engine. You might have pull the injectors and turn the engine a few times to remove the diesel and fit a new heater plug

FeelTheBern

The amount of mechanical knowledge that lads have always amazes me. Just read this thread and I have no idea what most of the engine parts mentioned here might do - never mind where to find them...

larthehar

FeelTheBern wrote: »

The amount of mechanical knowledge that lads have always amazes me. Just read this thread and I have no idea what most of the engine parts mentioned here might do - never mind where to find them...

You have no option but to get a lad to look at it so i guess.. do let us know what the outcome is!

r4110

If you take the heater plug out and can see diesel in the intake you'll know then if it's causing the problem. I had this happen to me before with a 185