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Re: Building up a C263 gas engine...?
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Posted by ChadS on November 09, 2006 at 13:41:25 from (66.228.96.232):
In Reply to: Re: Building up a C263 gas engine...? posted by the tractor vet on November 09, 2006 at 08:30:40:
They carry alot of heat in the head. The exhaust ports are very restricted on any tractor 6 cyl gasser. Open up the ports on the exhaust and will make a whole different machine out of it. Runs cooler cause the gasses dont backpressure the valves and hold in the heat. May be a bit less prone to burn up exhaust valves, Ive seen em have alot of oil burned up caked in the ports, porting the head can help keep the port cleaner so trash does not build up and fall back onto the valve and hold em open long enough to burn. Dirty, rusty exhaust manifolds should be torn down and inspected, lots of room for trash to hide and get caught in the valves. A 263 is a tough ol engine, but if its shot, its shot, and like Vet said, put it all back into specs, change a few little parts here and there to help wake it up. I had a 706G in for an inframe overhaul last fall, pistons and sleeves were all busted and cracked. Block was fine, but never seen one self destruct like that. New sleeves n pistons, crank looked good, was still in good shape, rebuilt the head, all new, only way to go, dont second guess on the head,, slipping the pto at 93 hp at 540. lots of head, carb, ignition work to get it to wake up. Chad
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