Combines Duetz check upIJ

valve lash, check push rod tube seals for seeps. super clean the coolers., bout all.

I agree with tbran,especially the valve lash. Something else, tbran, what about head bolt torqueIJ

on the R50-52's - the 913C's it might pay at 3000+ hours on the combines 50-52's, havn't had any problems on the 513's V8's.

Four things come to mind on a Deutz with this many hours.Two have been mentioned(valve lash,and jug cleaning).Third,if this were my engine I would remove injectors and have them tested.Pressure and spray pattern at 4000 hrs. have to be getting marginal.Fourth,make sure you check the positive crankcase ventilation(PCV) condom.We try to check these yearly because if they are torn you are screwed(Pun Intended)as dirt can enter the engine intake. My Opinion Only, Hyper Harvest II

Might want to check air pressure inside cowling. No less than 6" water pressure at 2300 RPM with hot oil. Tell tale sign of worn fan blade is noise coming from rotary screen area. If replacing blade be sure to replace bushing for centering rubber coupling drive as well as the rubbers and recon the surface that runs on the bushing. This should prevent the snapring groove failure as noted above. Here's a note on the turboed V8s where crankcase is vented to outside air. We have had the most trouble maintaining valve clearance on intake valves for front stack of cylinder. We decided to vent blowby back into intake pipe nearest front turbo. This makes for a bit of lube to valves and seats. Reason that blowby was vented to outside early on was intake hoses reacted with oil and got rotten. Hose compound was corrected as far as I can tell for I have seen no problems thus far. Still want to keep an eye on intake elbow if doing this mod. Guys have even reported less oil consumtion with this mod. We also have installed 7" by 12" long pipes just ahead of air intake prescreen box. This pulls a bunch of heat from engine compartment and I believe that also helps valves maintain proper clearance. This hasn't seemed to be a problem with naturally asperated V8s for crankcase is vented to intake and all ready hot intake air isn't heated further by turbos.

Maybe that would explain why the front exhaust pipe on our turbo'd V-8 62 got to blowing out white smoke on cold start up while the back one cleaned up a lot faster. We traded it off before any more problems bit us in the butt. That Deutz was a heck of a horse and not bad on fuel but, geez, the upkeep on ours was $$$$. Cummins has treated us much better.

I've allways hated dual exhaust especially when started cold. Even when pulling with the old diesels there would almost allways be more smoke from one or the other stack. Didn't matter if you overhauled engine complete with fuel pump job for one stack rarely would match the other. For me it would still be a toss up if I had to pick between Cummins or Deutz. Neither are perfect. AGCOs Sisu is likely the quitest and smoothest I've ever been around.