Finished Oliver 1800 Rebuild - need some encouragement/advic

Iowa Jim · May 2, 2011

We finally got our Oliver 1800 put back together. We had a problem with overheating then had rain water in two cylinders so we tore the engin apart and did the following: New Radiator, rebuilt injection pump, rebuilt injectors, new wristpins, new rod cap bolts, new pins, two new sleeves/pistons, cleaned fuel tank, rebuilt the head, installed new cluthc and fiber disk, replaced the PTO damper, and installed new batteries.

I had the tractor started for about 2 minutes last week, but had to turn it off. When it was running I found that two banjo fittings and the bottom plug of the injection pump were leaking plus fuel was seeping out of one of the injectors at the block. Now I can not get it started again. Any suggestions? I bled the lines and fule seems to be pumping well when the lines are cracked.

Jim

old1850d · May 3, 2011

The last 1650 I rebuilt was also very hard to start after the rebuild , this sounds to me like you are getting air somewhere. I had to finally crack all the injectors open and crank the motor till i really had a good stream coming out of all of them and then tighten them up and its run well ever since. Im planting corn with it right now.

300winchester · May 3, 2011

One thing comes to mind and I am not saying you missed this but there is a brass washer that goes on each injector to ensure seal. Also did you torque to specs. ? I wish you good luck, I am rebuilding my 1650, major out of frame. doing it all, the whole nine yards, so far with pump, injectors, kit, head, crank, flywheel, block I have $4000 into it.

showcrop · May 3, 2011

(quoted from post at 15:59:59 05/02/11) We finally got our Oliver 1800 put back together. We had a problem with overheating then had rain water in two cylinders so we tore the engin apart and did the following: New Radiator, rebuilt injection pump, rebuilt injectors, new wristpins, new rod cap bolts, new pins, two new sleeves/pistons, cleaned fuel tank, rebuilt the head, installed new cluthc and fiber disk, replaced the PTO damper, and installed new batteries.

I had the tractor started for about 2 minutes last week, but had to turn it off. When it was running I found that two banjo fittings and the bottom plug of the injection pump were leaking plus fuel was seeping out of one of the injectors at the block. Now I can not get it started again. Any suggestions? I bled the lines and fule seems to be pumping well when the lines are cracked.

Jim

re you sure that you have RPMs? I've been in the situation where I've done some work and assumed that I hadn't drawn the battery down significantly, and it would crank but not start, even though I thought I had everything. Then charged up the batteries, got RPMs, fired up.

Brian Jasper co. Ia · May 4, 2011

Does it make smoke when cranking, just won't start? I'm told that the delivery valve in a Roosa Master pump can leak internally making starting difficult. If I understand it correctly, it causes the pump's output pressure to drop a little. Lower pressure causes the fuel to not be as atomized and harder to burn.

Finished Oliver 1800 Rebuild - need some encouragement/advic

Iowa Jim

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old1850d

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300winchester

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showcrop

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Brian Jasper co. Ia

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