Greetings from a new user. The grandchildren gave me an older mower to fix. B&S 1 cyl vertical 17 hp. I have had it apart twice, actually had it running once and now it is back to the original problem after I installed a new intake valve (because of some spitting out the carb when running- the valve did have a defective seat ).
The engine turns fairly freely with the plug removed. With plug installed , it is tight on compression (maybe too tight ) but then gets equally tight about 1/2 way down on the power stroke. On the last assembly, the crank only turned freely, then the crank and cam turned freely, then the crank and cam and valves turned freely until the plug was installed. The started seems OK, but would not get over TDC
Another clue. The original problem was a broken intake push rod. Broken end never found.
Any help would be appreciated. David
The engine turns fairly freely with the plug removed. With plug installed , it is tight on compression (maybe too tight ) but then gets equally tight about 1/2 way down on the power stroke. On the last assembly, the crank only turned freely, then the crank and cam turned freely, then the crank and cam and valves turned freely until the plug was installed. The started seems OK, but would not get over TDC
Another clue. The original problem was a broken intake push rod. Broken end never found.
Any help would be appreciated. David
Tight engine
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