Farmall M Funny noise and rebuild price question

Posted by tcanthonyii on June 20, 2009 at 21:49:05 from (98.16.153.79):

My M ever since I've had it makes a knocking noise but it doesn't sound like a typical rod knock. My FIL says it made that noise while he had it too. I put a stick all over the engine as a stethoscope and it seems to be coming from behind the timing cover. The engine also misses quite badley as well. I only use it around my house (1 acre) and is a loader tractor so It never runs a ton. Usually never gets warmed up but when it does at idle there is no oil pressure and at full throttle warmed up I get no more thatn 10-15. The head was replaced/rebuilt less than 25 hours ago. My FIL bought it with a cracked head and had it replaced with a rebuilt gas head. The tractor was originally a distillate head. He said it knocked before the new head was put on.

So my questions are what the heck is the noise coming from? And what is a good round number for the rebuild. The head is in good shape and won't need to be replaced. I would most likely re-use the pistons and rods unless it's not recommended but would put in new sleeves and bearings. I want to put the later timing gear in it as well since I have a live pump that will run my Behlen power steering when I get around to putting in on. And what would be the difference in price if I put in the High Altitude pistons to get a few more HP. Some day I hope to have have a few more acres and do some hobby farming or hay work and this would be my tractor. I will do all the work my self with my Grandfather. So I guess I'm really looking at the average price for parts.

Or does it just make sense to fix the knock and not worry about the oil pressure or fix the knock and put in new bearings to solve the oil pressure problem. I don't really have any blow by. I have not run compression and they may be more telling.

Thanks for letting me ramble.

T.C.

This post was edited by tcanthonyii at 22:09:51 06/20/09.

Replies:

• Re: Farmall M Funny noise and rebuild price question tcanthonyii 21:13:42 06/21/09 (0)
• Re: Farmall M Funny noise and rebuild price question tcanthonyii 09:35:06 06/21/09 (1)
  • Re: Farmall M Funny noise and rebuild price question Janicholson 20:32:32 06/21/09 (0)
• Re: Farmall M Funny noise and rebuild price question tcanthonyii 07:27:58 06/21/09 (1)
  • Re: Farmall M Funny noise and rebuild price question Janicholson 07:52:50 06/21/09 (0)
• Re: Farmall M Funny noise and rebuild price question Janicholson 06:20:34 06/21/09 (0)
• Re: Farmall M Funny noise and rebuild price question TractormanNC 05:56:32 06/21/09 (0)
• Re: Farmall M Funny noise and rebuild price question mkirsch 04:52:25 06/21/09 (0)
• Re: Farmall M Funny noise and rebuild price question John M 04:48:24 06/21/09 (0)

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