Posted by Marty K on March 17, 2009 at 09:47:11 from (135.245.10.2):
The restoration of my 58 450 LP has ground to a halt. After about 10 hours of running around the pasture, my repaired head began blowing coolant out of cyl #4. Thinking it was the gasket, I pulled the head and performed a shade-tree leak test in the shop. I found the water jacket in the head leaking around exhaust valve seat #4. Since the head was off, I took it to an engine shop where they pressure tested the water jacket and found porosity leaks in cyl #2 and 3 intake and exhaust ports. I asked a welding shop about it and they didn't give me a good prognosis on welding the ports with nickel rod. The walls are very thin and I dare not risk a welder blowing a hole in it.
As most know, the LP head is highly sought after by pullers so the supply has pretty much dried up. I don't have enough money to start over on a replacement head and I want to keep it original as I am a purist and don't want to put a gas head on an LP tractor. Does anybody out there have an idea on how I can seal the water jacket without resorting to welding or replacing the head? I already have over $1K in mine (guides, seats, valves, welding repairs). Help. Thanks.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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