JD 455

bseifert2 · Oct 30, 2017

Engine began knocking and blowing light blue smoke, engine oil level dropped from full to half.
Tractor has 1700 hrs. 21 years old. Any thoughts on possible problem?

beenthere · Oct 30, 2017

No idea, but :welcome: to TBN

What is your mechanical skill level? up for doing any wrenching on your diesel engine?

buickanddeere · Oct 31, 2017

Has the oil and filter being regularly changed with the proper oil and filter ? Was the oil level between add and full ? Was the tractor being operated on a hill?

bseifert2 · Oct 31, 2017

buickanddeere said:
Has the oil and filter being regularly changed with the proper oil and filter ? Was the oil level between add and full ? Was the tractor being operated on a hill?

Yes followed JD maintenance recommendations. Oil & filter were changed in June of this year. Oil level was at full after changing. After problem started checked oil level and this is when i noticed oil level between add and full. No signs of leaks. I was driving on level area when problem started.

Egon · Oct 31, 2017

beenthere said:
No idea, but :welcome: to TBN

What is your mechanical skill level? up for doing any wrenching on your diesel engine?

All that needs saying.

BleedingOrange · Oct 31, 2017

PM sent to the OP.

IH3444 · Nov 3, 2017

Those little Yanmar diesel engines should have the valves checked every 1000 hours. Doubt this is problem related, but it never hurts to check them.

bseifert2 · Nov 3, 2017

IH3444 said:
Those little Yanmar diesel engines should have the valves checked every 1000 hours. Doubt this is problem related, but it never hurts to check them.

Thanks

I put some fuel cleaner in the tank. Left it set and fired it up today. Runs like it should.