TL80a Engine popping - help!!!!

[Sawdustsmb]

I was wondering the other day if you had this issue resolved. Maybe you list off what exactly you / your mechanic did so far. Do you know on which cylinder she is missing on?

That has been asked before and I assume they are now putting it on the Dyno to get it to act up so they should be able to figure out if is one or all. A little hard when bouncing across a field. Interesting - I wiil call in the morning. Thanks.
Bob

 

[Jerry/MT]

It's been awhile and I know we all like conclusions to problems. I just visited the patient at the tractor hospital so - they checked the temp. sensor (adjusts timing on the injection pump) - it was out of spec. helped but still popping. Retimed the pump, off 2 degrees - helped but still popping - sent the injection pump out - nothing wrong - isn't completely back on yet but they are not optimistic. Mechanic was on phone with CNH while I was there asking for their advice. They have worked through the whole report from CNH including valves and everything we already talked about and tested. Sorry no conclusion ! There must be a lesson or 6 or 7 here someplace. Very discourageing.

Bob

Please keep us posted on this problem.. I'd like to know what the final outcome is. Has the dealer been able to duplicate in on a dyno?

 

[Sawdustsmb]

Please keep us posted on this problem.. I'd like to know what the final outcome is. Has the dealer been able to duplicate in on a dyno?

Yes though the "popping" load range is pretty narrow unfortuneatly it's at pto rpms - if you were using it as a loader tractor you might not ever notice.

 

[Sawdustsmb]

Drove the tractor today and it appears to be fixed. Mechanic at the dealership said it was a timing issue and adjustments in the injection pump. I'm not sure what can be adjusted besides timing. Should be home tomorrow or friday - I'll know for sure when I start working it.
Thank you everyone.

Bob

 

[Jerry/MT]

What a saga! Glad it's finally fixed but I'll wait for a report from you after you use it for a while. It sounds like RickB was right; some problem in the injection pump.