MM UB Gas, Knock in the Engine?

Posted by Clodbuster on April 13, 2009 at 18:34:55 from (66.146.251.103):

I bought this about a year ago and it seemed to run fine sitting in a shed, but then it sat around outside not running since. Exhaust is covered but it has a small 1/4" crack in the manifold under the hood area.

I cleaned the gas tank, put in new points, plugs, cap, and rotor, and it runs sweet but has a loud knock. When I ride the brake it goes away and sounds fine and normal.

If it was carbon loose on a piston, would the sound go away under load? I hope it is not a rod bearing, but what else could it be? The tractor was aways taken care of and the oil is clean.

I spun the engine without the plugs in and nothing came out yet. Compression is an even 60 to 70 lbs on all 4 holes so I don't think it is a stuck valve.

Replies:

• Re: MM UB Gas, Knock in the Engine? ken in texas 08:50:08 04/14/09 (0)
• Re: Hey!!!! This is actually about a TRACTOR skycarp 08:27:32 04/14/09 (1)
  • Re: Hey!!!! This is actually about a TRACTOR Clodbuster 08:35:46 04/14/09 (0)
• Hey!!!! This is actually about a TRACTOR Clodbuster 08:05:23 04/14/09 (0)
• Re: MM UB Gas, Knock in the Engine? Jerry/MT 20:48:39 04/13/09 (2)
  • Re: MM UB Gas, Knock in the Engine? Clodbuster 21:52:38 04/13/09 (1)
    • Re: MM UB Gas, Knock in the Engine? jerrycentmi 08:37:36 04/14/09 (0)

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