just bought 806 diesel

i just picked up an 806 diesel it has 9300hrs on it and i was wondering if there was anything i should be worried about as far as wearing out or going bad on a tractor with this many hrs. It has a new clutch and ta new alternator front and rear main seals tie rods and like a newer injection pump cause its grey not painted red. theres new seals in the pto to so that mite have been rebuilt too. it needs a small snort of ether to start but thats the only issue i found.

sounds like your good to go. if there is"nt any noise in the gears or outdrives. looks like i"m going to put a ta in mine before the next hay cut its started slipping. good luck.

IF it need EITHER at this time of the year then she is way past and over haul . As if they are wright then they will start below freezing with out either . Either in them engines is extremely hard on them and can and will break rings . The valves may have beat them selfs deep into the head and this will cause low compression and hard starting . The biggest down side of the D361 it is not and engine for the novice to try his hand at a rebuild .When i do one it is done out of chassie and it is line bored decked contour bores recut and the block is bored .010 off the center line of the crank due to core shift over the years. Then we do the head complete with new valve seats new valves and spring plus guides along with a light truing cut . Then the sleeves go in and with a press fit . Then each sleeve is lightly honed to remove any wrinkles and each piston is hand fitted to each hole . Then you do 6 hal mary's bow to buda at sun rise and hope and pray that you did it wright .

If its needing ether to start right now you have some issues to take care of.

"Tractor Vet" is on the right track but before going to the expense of an overhaul I would check out a couple things first. One would be check the the engine timing, may need tweaked a little. Other would be to be sure the starter is turning over fast enough, that would include checking out the battery cables, & etc.

Son & I bought a 1206 to restore a few years ago and anytime temps got under 50º it would take a snort of either to start. We retimed the engine which helped a little b ut found the main culprit to be the starting system. Ater having the starter rebuilt, put on new cables & replaced the relay & junction block under the steering wheel it starts up like new. Has to get well below freezing now before it needs a sniff.

I agree with the other fellers.

If ya gotta either it, you need an engine overhaul. No gettin' around it.

That's how diesels tell ya that they are tired.

Allan

Not disagreeing with any of you, but we've got an 806 that grandpa bought new, and it's never had the oil pan or valve cover off, and first start of the day it'll take a shot of ether to start. once it's started, it'll go all day. it's been like that for probably 15-20 years. So my point is, even if it's getting "tired" it might still have a lot of work left in it.

then again, it could be trashed. since you have no experience with this one, only time will tell.

You said it had a new injector pump. Had a rebuilt pump put on my 856 a couple years ago and it was hard to start after it was put on. Went back to the diesel pump shop that rebuilt the pump and they told me to check the timimg so took it back to the garage that put the pump on and had to make him check the timing again and he had it way slow. Set the timing to the correct setting and it started easy. I also had him set it one degree faster because another mechanic to me to do that because of wear on the old motor.

This is the biggest misconception of a diesel engine. ETHER does not make it worn out engine. YOu just prolonging and not fixing the problem. What is your oil pressure hold? 45-60lbs? How much crank pressure do you have or blow by. There will be more when warmed up, even on a fresh motor. I rebuild dozen of IH engines a year. I just purchased a 706 with 12,000 hours on it. It needed ether to start.

However the engine was not worn out. It has good compression and 60 lbs of oil pressure. It has minimal blow by. The culprit was a weak injection pump. If your head on the pump is worn out you will never create enough pressure to properly atomize the fuel when they pump is turning slow at cranking speeding of the starter. I also ground the valves and created 40lbs more compression. Now it runs perfect and starts perfect.

Just to call and engine worn out hard starting is short sighted. I've been a mechanic my whole life and have my college degree from wyotech. I have to deal with hard starting international everyday and fix them. You need to Diagnose the problem not throw parts at it. Compression, oil pressure, Blowby pressure, and fuel pressure; Then rebuild.

Also timing. The more you retard and engine the better it will start. The more you advance and engine the smoother it will run. If you mess with the timing you will be fighting these two elements. You need to strike it somewhere in the middle. When I'm working on d239 or d358 with some hours on them. I sometimes have to time be engine by engine, and only use the manual as a starting point.