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Farmall H engine noise

W

wfd2

Member
I can hear a strange noise coming from the engine of my H. She runs good, doesn't burn oil and runs strong. I don't really want to call it a knock because it sort of sounds like a cross between a soft knock and a tick, if that makes sense.

I changed the oil and found metal particles around the bottom of the oil filter. Now, my question is this. I have no idea when the oil was changed last on this one and I did find that the paper oil filter was very wrinkled and soaked with oil to the point of saturation. I know metal particles aren't good in the oil, but I also know that there is normal wear and tear that happens over the years, that's one of the reasons why they use in oil filter. Is some metal in the oil "normal"? Or is this a sign of bad things to come shortly?

I'm thinking about pulling the pan soon and look at the main bearings. Any other places to look?

Also, if the engine needs to be rebuilt is there a good book or website someone knows that would walk me through, step by step on rebuilding the engine in this model H?

I appreciate your help.
Bill
 
If it runs good and does not burn oil, I'd adjust the valves and keep running it. The noise could be any number of things. How is the oil pressure?


No use fixing it if it is not broke!
 
I would take a look at rod and main bearings. You don't want to spin a bearing and ruin a crankshaft. Its not good circulating all those metal particles throughout the engine. Hal
 
If you're getting metal, I'd sure look at those mains, rods and wrist pins first.

That's where a "hard working" engine is gonna show wear.

Allan
 
If this one sat for a number of years, your bearings may have been eaten up by acid and/or water buildup in the motor oil. They'd hold the right tolerance briefly but would wear very quickly if you run it much.
 
Oil pressure is really good. Very little change in pressure from cold engine to hot.

I was thinking about checking the valves, but the little bit of metal in the oil has me worried. But again, I"m not sure when the last time the oil was changed in the old girl, so this metal could have been building up since who knows when.
 
I agree with Wild Bill just change oil and filter and run her and keep a ear close to her and if your noise continues then it is time to start checking things over.
Bob
 
(quoted from post at 20:07:05 08/31/10) If it runs good and does not burn oil, I'd adjust the valves and keep running it. The noise could be any number of things. How is the oil pressure?


No use fixing it if it is not broke!
Click to expand...

Those metal filings in the oil filter indicate severe wear, and absolutely is NOT normal. Fixing it now will cost several hundred dollars. If you put it off much longer, you will spend that same amount of money as well as what it costs to repair the engine block AFTER a connecting rod let go and punched a hole in it. OR, you could just sell the entire tractor for scrap price and let it go to China.
 
When did you last adjust the valves? You might have a push rod problem. For sure drop the pan and get that metal out of the engine. I'd add a quart of diesel to the oil after you warm up the engine and let it idle for 5 minutes with that in there to get a really good flush. Then drop the pan and clean it. Change you filter again also.

Gordo
 
Ok guys, so I'm assuming a that an engine rebuild in my near future. Now the last engine rebuild that I took part in was with my late father and it was a 1986 Ford Escort. I quite frankly can't remember what we did and in what order. I'm pretty good with mechanical repairs but just haven't done a major project like this in the near past.

I have a DVD and some books I'm looking at to help me through the internals of the engine. My question is this: Has anyone had any type of success in just replacing the bearings that are bad without tearing the whole engine down? Now I know the experienced guys are laughing at me now and wincing, but I'm looking just to get through this season until I can get the project started properly in the winter. Is there any opinion out there on doing this temporary fix?
 
Without hearing the noise or knowing what the metal pieces look like it is hard to guess what the problem may be. Chips of cast iron may be timing gears going away. Bits of aluminum may indicate broken skirts on pistons. Pieces of babbit would be bearings failing.
 
The metal particles looked just like graphite for lubricating locks. It was caked in the bottom of the oil filter housing. I'll see if I can record it running :)

I haven't adjusted the valves, so I'm going to do that over the long weekend too. Clearance is .017", right?

I appreciate the help!
Bill
 
(quoted from post at 07:45:28 09/02/10) The metal particles looked just like graphite for lubricating locks. It was caked in the bottom of the oil filter housing. I'll see if I can record it running :)

I haven't adjusted the valves, so I'm going to do that over the long weekend too. Clearance is .017", right?

I appreciate the help!
Bill
Click to expand...

Correct. Valve clearance is .017", but that spec is for a HOT engine. Set the valves at .020 or even .022 with the engine cold and you will be close enough when the engine is fully warmed up.
 
Thanks Rustyfarmall...
I'll keep ya posted on my findings. I sincerely appreciate all of your time.
 
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