Little smokin and a stu stu stu studder!

[EMB5530]

Yea I checked the AF already but thankyou for the suggestion.

 

[SPYDERLK]

I had the exact same problem with my brand new 7060.

Long story short, the dealer came down, and advanced the timing on the injector pump. What this amounted to was loosening three bolts on the injector pump housing, rotating the pump appoximately 1/4" clockwise on the mount, and tightening everything back up. Overall, it didn't take any more than about 15 minutes to fix. The service was performed at the 70 hour mark, and immediately corrected the symptoms. The machine now has ~110 hours and has had no repeat symptoms.

As the mechanic explained...the engines are timed in India before they are shipped to the U.S. However, the cetane measurements of the Indian diesel fuel are higher than those in the U.S. diesel. And so, sometimes the timing needs to be adjusted.

As others indicated, your machine should be under warranty. Hope this helps.

Well the dealer had my tractor for a little over 2 weeks and had about 6 hrs on it, but they said they could not make it act up. I brought it home used it the first day and it did not act up for me either. Got it out a week later and it has started to do it again. The only thing that has changed is I have added fuel to it. So all I can figure is I need to start getting my fuel from a different supplier and see if anything changes. I have a hard time believing it is the supplier b/c many farmers and construction companies use their fuel but maybe my tractor is picky either way I guess it is a starting point.

It just gets on my nerves that it would not act up at the dealer (granted they may have only started it up and let it sit there above idle waiting for it to show signs of malfunction vs. actually putting it under a load and using it.) b/c now I have wasted $250 in fuel and $100 in labor rates as they said they could not issue a service warranty since it showed no signs of malfunction.
Ohh well I guess I'll just start w/ the fuel and go from there.
If anyone has any other insights I am more than willing to hear them out.

Thanks

Im with Farmerboy on this based on your stated timing of the problems occurrence. I am extrapolating from the warmup injection advance system on the 7520 to, perhaps, one like it on your tractor. ... The timing of the injection pump is advanced electrically for about 20 minutes on startup, then falls back to the actual mechanical timing of the pump. I believe what you are seeing is a pump that was set up retarded and gives your engine some problems when the electric advance times out. I am surprised it happens in warm weather -- the 7520 gave a similar symptom only in the cool. A rather small turn of the pump toward advance cured it. I only moved mine a degree or so. Perhaps yours needs a little more.
...I think timing advances momentarily after each start, so try a quick cutoff and restart when it happens. If the problem vanishes for a bit it fits the surmise.:confused3:
larry

 

[EMB5530]

Thankyou all for the info
I just came in from advancing the timing but have a reunion to attend today:mur: so I dont have the time to warm it up and use it.
I only changed it by about 1/32 of an inch so it may not be enough but I can always go more, I just dont want to advance it too much.
I'll keep ya'll posted on the results as I go.

BTW: ENG18LT have your swivel and patience ready if you have your loader on there still and you are going to mess with your timing b/c that back bolt is a reach and a half:2cents:

 

[ENG18LT]

Will do, thanks for the heads up.

 

[SPYDERLK]

Thankyou all for the info
I just came in from advancing the timing but have a reunion to attend today:mur: so I dont have the time to warm it up and use it.
I only changed it by about 1/32 of an inch so it may not be enough but I can always go more, I just dont want to advance it too much.
I'll keep ya'll posted on the results as I go.

BTW: ENG18LT have your swivel and patience ready if you have your loader on there still and you are going to mess with your timing b/c that back bolt is a reach and a half:2cents:

While it may be just enuf to stop the effect, it probably is not enuf to be right. I think the warm up advance is more than the equivalent of 1/8". I went about 1/16 and altho the cold stack effect after the warmup timeout went away I think another 1/32 would be right. I notice the tractor has a little less power after the auto advance times out.
larry

 

[EMB5530]

While it may be just enuf to stop the effect, it probably is not enuf to be right. I think the warm up advance is more than the equivalent of 1/8". I went about 1/16 and altho the cold stack effect after the warmup timeout went away I think another 1/32 would be right. I notice the tractor has a little less power after the auto advance times out.
larry

Ok I'll probably try it out and advance it a little at a time untill it seems right its probably gonna be a multi-trial deal.
Anyways its fun to contort my wrist into that tight little area!!! Haha ima contortionwrist

 

[ENG18LT]

Could you post a picture or two of the pump?

 

[EMB5530]

 

[EMB5530]

Well just a finalization to this post.
It seems as though adjusting the timing has done the trick.
I have not had any issues since and everything seems fine.
Thanks to all whom have read and contributed to this post and hopefully it may help a few others out there.

 

[cowsmowmygrass]

Your thread was very informative to my issue that I have posted on a different thread.
The symptoms are similar, but not exact. I post here to ask if you think I also need to pursue the timing. The MOST similar point is that it only happens under a steady load for 10+ minutes. This is somewhat a chronic issue as it began on the day they delivered my brand new machine in Dec 2006. The dealer, Top Flight, came, picked it up, changed the screen filter in the tank and chewed me out for using dyed diesel from my drum. I took it, bit my lip and filtered every refill thereafter. The latest trip to dealer was at my own expense. I told them to change the in tank filter along with my list of other maintenance and replacing the starter. They did not change the in tank screen, even argued with me in the parking lot as I was picking it up, that I didn't know what I was talking about - there wa no such thing as an in-tank filter. Of course, I couldn't get it to fail at the dealership without having a way to place it under a load. The next 2 or 3 posts contain the failure of my 2006 6500 4X4.