Posted by IH 240U on December 18, 2008 at 00:57:24 from (216.51.237.167):
I am helping my son with his "new" 1959 IH 240U, it currently has the underslung exhaust on it. It has a 369645R manifold on it, which I think is fairly common for that engine, but where on a row-crop tractor a pipe would thread in to poke through the hood, this has a cast 180 degree elbow piece to turn the exhaust downward (held on with two bolts), and then connects onto the remainder of the run of 1.5 inch exhaust pipe down the side and out under the rear axle.
Our questions are:
1) We have been spraying the bolts with PB Blaster but it is in the low teens for temperature here and not much better in the shop. Any hints for unbolting those two bolts without snapping them off in the cast manifold?
2) If we succeed in getting the 180 degree cast piece off, will there be threads inside the manifold to accept a pipe or do we need some type of adapter piece/donut/etc...? We just want to run the exhaust straight up through the hood. (We found a junked hood already so we don't have to cut our good one in the event we do a full restoration at some point).
3) Speaking of cold, we want to plumb an engine heater in. I think the best place would be from the block drain plug under the carb area and then run it up to the tee near the upper radiator hose/temperature sensor on the front/top of the engine. Will that work, or anyone have other ideas?
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