OC-46 died in the woods

IHfan441 · Dec 3, 2014

I have an Oliver OC-46 that is a 3 cyl gasser that died in the wood in the summer while working on my lot. I have tired to get it started on a couple of occasions and finally did a compression test. Good compression in #2 and #3 but #1 cyl is zero. Pulled off the valve cover and everything is moving that I can see. Any ideas how I can proceed? The crawler is sitting at my brother inlaws (Pembroke,ON)over 4 hours away so I need to come up with a plan before I go there. Any ideas or help would be GREATLY APPRECIATED!!!

dej(Jed) · Dec 3, 2014

(quoted from post at 11:47:09 12/03/14) I have an Oliver OC-46 that is a 3 cyl gasser that died in the wood in the summer while working on my lot. I have tired to get it started on a couple of occasions and finally did a compression test. Good compression in #2 and #3 but #1 cyl is zero. Pulled off the valve cover and everything is moving that I can see. Any ideas how I can proceed? The crawler is sitting at my brother inlaws (Pembroke,ON)over 4 hours away so I need to come up with a plan before I go there. Any ideas or help would be GREATLY APPRECIATED!!!

That is a tough call. Can you get to it to drag it onto a trailer?
You might be able to load it with starter motor an a couple of charged batteries.Sounds like you may have cracked some rings for the pressure to be at zero. I have had some luck by
getting some oil on top of the piston to seal the rings enough to start it and get it out. Good Luck....

dpendzic · Dec 3, 2014

head of a valve broke off, blown head gasket to the outside of the block, blown piston

J. Schwiebert · Dec 3, 2014

The loss of compression on one cylinder is not why it will not start and run. Have you checked for spark> Do the plugs get wet? I will sent you an e-mail. Is this a regular OC-46 or a Series B model?

IHfan441 · Dec 4, 2014

It is a regular OC-46 to my knowledge, the plugs are getting wet and I am getting fire.

JDemaris · Dec 4, 2014

My guess is in line with the other poster, dpendzic. One cylinder with no compression will still start and run if that is the only issue. But if it had been running well and obviously this loss of compression was sudden - you likely broke something. That being said, if the other two cylinders gave fuel, ample compression, and spark at the right time they should fire. There must be more to this story.

Lou from Wi. · Dec 4, 2014

IHfan441,
We to own a OC-46, and have relied on Jd Marris's advice and helpful suggestions. My son suggested getting a small bore scope ( cheap) and pull the plug to see if you can see the valves,cylinder after pulling the offending plug. That's what we would do to help find the culprit. You might be able to borrow or rent a small skid steer or tractor to pull the OC out of the woods and get it to a trailer to diagnose or fix the problem.
A few guesses without looking could be the problem,
1. A lobe off the camshaft
2. A valve stem broken
3. Broken valve spring sticking the valve in open position.
4. broken connecting rod, piston in up position.
These are just guesses,without actually looking and finding the culprit it is anyones best guess.
If it were me, I would find a way to pull it out of the woods and get it in my shop to diagnose the problem and fix it. They are a nice machine in my opinion, as I can attest to. Like anything, if it is mechanical it will break down. Guaranteed,I hope you get the problem resolved.
Regards,
LOU

OC-46 died in the woods

IHfan441

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dej(Jed)

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dpendzic

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J. Schwiebert

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IHfan441

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JDemaris

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Lou from Wi.

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