last saturday i was riding in the 6 inches of snow in 4wd about half throttle when all of a sudden i lost all the power(the emgine was still at the same RPM) so i quick let off the throttle and it was really loud like knocking and it sounded terrible. so i quick shut it off and my dad told me to start it back up. so i did he could hear it about 500 ft away. knockin and bangin. what do you think it is? BTW it is a Naturally aspirated 40 hp diesel 3 cyl. thanks.

 

Hate to be the one to ask the obvious, but.....

What was the oil level?

 

Full just changed it the day before. amsoil 5w-30 hevy duty diesel oil.

 

Was there any sign of oil leaking anywhere?

 

nothing absolutly nothing it looked normal.

 

Sounds like "Death Rattle"
Maybe something just '"Let Go" ???

How many hours on the engine.




will a 5.9 Cummins fit? ;D

 

only had 425hrs on engine kawasaki said these engine hardly never go bad. a cummins wont fit but thinkin bout a Cummins B3.3 85hp turbocharged 4cyl ;D

 

kawasaki said these engine hardly never go bad

Uh Huh,.....heard that one before....... :

Will they warranty it?

 

no the thing is 2 years old and has a 1 year warranty so well have to pay for it.

 

Well, since you lost the drive power and the engine was still turning at same rpm, and you could start it back up.........it sounds like whatever couples the engine to the drive may have blown up. A busted flexplate, clutch disk, etc. will make a heck of a rattle and bang if it lets go.

Sean

 

Did you check the belt drive?

MikeyB

 

yeah but know it dont start. it sonds like somethings gonna come through the block. it has a hard tim turning it over and yes its a brand new battery and fully charged.

 

Kawasaki makes some pretty good stuff.

I would take the clutch cover off and remove the belt, then try and start it up. You could have done the clutches in or blown the belt all to heck.


Need to confirm what the problem is before you tear the engine down for no reason.

Jason

 

Were you the one that thought about using a air compressor to act as boost?

 

I agree with what formula said. You mentioned that you had changed the oil the day before. That may be a clue if it is engine and not drive train. If you also changed the oil filter, was it the correct type? If not you could have oil starvation. Did you physicaly check the oil level after the problem started or just go by how many quarts you put in at the oil change. Was the new oil you installed a synthetic? If you had been running regular oil and switched to synthetic there is a remote possibilty that some gung came loose and plugged an oil passage.
Before you start stripping the engine try and isolate the drivetrain from it and then start the engine. If you have an oil pressure gauge check that the oil pressure is normal. if changed (higher or lower) that could be a clue.
Whatever you find, keep us posted.