Re: Ole H makes it another day!

Posted by Theman on May 13, 2004 at 06:32:07 from (65.248.77.5):

In Reply to: Ole H makes it another day! posted by 49 Cubber! on May 12, 2004 at 19:20:56:

For the black smoke under load, try turning the load adjustment needle in in quarter-turn increments. This is the adjustment screw on the bottom of the carb at an angle. If that doesn't clear it up before giving problems throttling up, temporarily disconnect the air inlet tube from the air cleaner to see if there is some restriction at high air flow. One other option though not likely is a float level being too high.

The vent tube on the lifter cover is an air inlet. There never should be anything come out of it. Check to see if you have a tube connecting the back of the head to the air cleaner. They are often missing. This was a crude form of positive crankcase ventilation. The air path is: Air into the lifter cover tube passes across the crankcase to the governor housing (and to a small degree up the push rod paths). The tube angling out from the top of the governor housing goes into the front of the head. It then travels through drilled passages in the head casting to the top of the head under the valve cover. Over the rocker arm assembly, the tube continues to the back of the head. This tube has a hole drilled in it to gather vapors/oil mist in the top of the engine. From the back of the head (and through the steering/gage support bracket) there should be the tube mentioned at the beginnning of this paragraph. It is possible that a tube or passage is blocked. My '51 H will idle just fine through this system if I remove the precleaner over the hood and block the air flow with my hand.

Yes, there is a seal where the steering shaft goes into the upper bolster. If the tractor has been run under dusty conditions or if the shaft was removed while covered with rust and dirt, that seal can be damaged.

I suspect the steering wheel shake is a function of ground speed based on the tire lugs. Will it do the same thing on pavement vs. soft ground? My H shakes this way in 4th gear through a certain rpm.

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