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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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880 diesel Questions

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Adam

04-01-2004 21:28:18




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I just bought a 1961 880 diesel That had a knock. I found #6 rod spun. This tractor has a roosa master pump on it. I'm not sure of the timeing procedure for the roosa. Do I need to be carefull while taking it apart or is the timing procedure easy enuff? Same as a 1600??? Also I found 3 to 4 gallons of water in the rear end befor oil came. I've found some in tractors befor but never so much. Should I be conserned about rust on the bull gears and deff? Main intended use is pto but I may use it in the feild as well. It has been setting for a few years. Did all 880's have pressure lube rear ends? This one has a filter mounted on a seperat housing just above the hyd filter a hose comes from the left side of the transmission and goes to the filter then the top of the power buster drive a line then comes out the power buster then into the transmission drain. Also is there a special way to grind the valves on these? I never specified a certain way to grind the valves on the other olivers I rebuilt and have had no problem but read a while back that the diesels need a special bevel or somthing? Thanks, Adam

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E J

04-02-2004 18:34:03




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 Re: 880 diesel Questions in reply to Adam , 04-01-2004 21:28:18  
Make sure that trans pump is pumping gear lube to the top imput shaft make sure that the screen in the bottom of the suction tube is clean after you flush and use more than 5 gal of diff lube.I siezed mine its no fun to fix plus the gears are NA from Agco.I ran a clear heavy plastic line from pump to trans to make sure mine lubes.



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J. Schwiebert

04-02-2004 04:36:10




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 Re: 880 diesel Questions in reply to Adam , 04-01-2004 21:28:18  
For the water in the final drive, check the gearshift boot first. The oil pump for the transmission is an add on and lubricates the bushings for the gears on the imput shaft. On the rust I would add some diesel fuel say 4-5 gallon and drive up the road a mile or so then drain it and put new oil in along with a new filter on the transmission lube system. The Roosa pump is simple. Get #1 on compression stroke, find the right number of degress line the two line up in the pump, install the two capscrews, back it up a quarter turn and check it and go from there.On the valve grind you may or may not have a head that has been updates since 1961 was when they were installed at the factory. These updated head have rotators on the INTAKE valves and valve seat inserts. The exhaust do not. However make sure the recession on the intake valves is in spec. I will bet it is not, then set the exhaust by measuring the installed stem height of the intakes to match. Most likely you will need to install sets in the exhaust valves. It makes them start nice and run good and that is why it was done to start with. Depending on how bacd #6 rod is, make sure your crank grinder can Rockwell test the surface hardness as spining a bearing can take out the hardness.Also if doing PTO work put the transmission in low range. It is easier on the transmission imput shaft bushings. Questions Good luck

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cornfused

04-02-2004 03:12:23




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 Re: 880 diesel Questions in reply to Adam , 04-01-2004 21:28:18  
I can't help you on your question but it brought up one of my own. How DO I time the pump on my 1600 diesel?



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