blueriver
Super Member
- Joined
- Oct 4, 2007
- Messages
- 5,025
- Location
- S.E.Oklahoma
- Tractor
- JD 5520 Montana 4340 Farmall Super A Montana 5720C
4340 C with 1500 hrs ... this time of the year it sets at the pond hooked to an irrigation pump ... runs 10-12hrs on a set. The rpms are set at 17-2000 depending upon the total distance of my discharge hose. The a/c is off, the radio is off and all the doors and windows are open.
I just noticed in the last couple days it will purr along like a kitty in a milk parlor and then for a split second a slight change in the engine sound ... the rpm's go up and I mean a split second ... then she purrs along for about 10-12 minutes and then the same fluctuation in the rpms. I noticed today when that happens a small puff of black smoke ... its fast changing by the time you hear it its over.
What do the experts think ... maybe a valve hanging up?
I just noticed in the last couple days it will purr along like a kitty in a milk parlor and then for a split second a slight change in the engine sound ... the rpm's go up and I mean a split second ... then she purrs along for about 10-12 minutes and then the same fluctuation in the rpms. I noticed today when that happens a small puff of black smoke ... its fast changing by the time you hear it its over.
What do the experts think ... maybe a valve hanging up?