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Farmall & IHC Tractors Discussion Forum
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Pre Oil Rebuilt H?

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GordoSD

02-16-2008 17:16:20




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I'm ready to fire up an H that I installed new pistons, sleeves, rings, bearings etc in about two years ago. It has been sitting in a heated, closed shop, with the pan off. Do I need to pre-oil, that is, squirt some kind of lube in the plug holes before I start it? Put something in there and crank it with the ignition and fuel disabled?

Gordo




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Brownie450

02-17-2008 07:53:06




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
Pull it down the road with oil in the cylinders & plugs out until oil is up at the rockers. Leave the valve cover off until you have it started & check for good oil delivery after it is running.



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John M

02-17-2008 07:34:21




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
We ususally just poured oil down the oil filter holes and poured some down the governor "tower", made a couple of squirts from an oil can in each cylinder, let it sit a few minutes toped off the oil, turned it over by hand about 10 times, then hit the starter a few times, turned on the gas, pulled the switch and lit her up. Oh we use to pour some ove the rockers and down the holes for the pushrods. We used assembly lube, but Dad just liked to pour oil in these areas. We used a real lite grease on the timing gears, I think it was this grease/oil mix type stuff used in wheel bearings on tractor/trailor trailors. Once it fired up we ran it for a few mintues, made whatever adjustments we could, then cut it off and drained the oil. We used cheaper 89cent oils for two changes then went with better oils and a fresh filter. last engine we rebuilt together was in 95, still pegs the gauge!(every thing is good,the pressure is just that high)

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MN Scott

02-17-2008 07:20:35




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
When I fired up my Super H this fall for the first time I preoiled it for the first time by cranking it with the sparkplugs out. Took about a minute to get oil to the rockers. It always amuses me how some people say to pack the pump with grease ect. When you change the oil all the oil is drained from the system and pump right so if the pump was not self priming everytime you changed the oil the engine would not self prime. The only IH tractors that need special attention and first start pump priming are the cub and german diesels because the oil pump is mounted above the oil level in the pan and a slightly woren pump will not prime.

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Gauger

02-17-2008 05:03:40




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
If you did it right at assembly you should have no problems. I use assembly lube on everything except the sleeves where plenty of engine oil is used. I can't imagine rust forming and I don't know what makes the H block any different from all of the others that I've used the cranking method with plugs removed to get initial pressure. I will find out though. I finished the engine on my SH last fall and won't start it until summer of '09. The pan is off but I have it stored inside a large trash bag with two large dessicant packs.

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Tom Windsor

02-16-2008 19:05:26




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
Goro, let me know your update cause I got one to fire up soon. tw



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old

02-16-2008 18:16:26




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
If it has been sitting that long with new rings in it I would put about 1/2 cup of ATF in each cylinder and let it sit a few days. That will lube the cylinders and also help remove the rust that will be there. I would also rig up some way to pressurize the oil system. My self I have a small air tank I rigged up so I can hook it in the oil line and then apply air pressure to it and that blows oil into all the oil passage ways

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GordoSD

02-16-2008 18:23:47




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 Re: Pre Oil Rebuilt H? in reply to old, 02-16-2008 18:16:26  
I have compressed air throughout the shop. Where do I blow air in, and how will that get it up from the pan?

Gordo



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Janicholson

02-17-2008 07:40:11




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 18:23:47  
Old puts oil in the tank so oil is pushed into the system (same as the squirt can. I always like to know there is oil in the lines before cranking. Jusat a nce insurance policy. JimN



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old

02-16-2008 18:51:11




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 18:23:47  
I hook up my tank to the oil pressure gauge line. What that does is back flows the oil so as to get to the bearings etc. It will also flow out the oil pick up tube but that in its self primes the oil pump also



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GordoSD

02-16-2008 17:54:11




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
Thanks guys. I have almost every tool known to man, except one of those thumb oil cans. Lucky I have a "farmer" neighbor that would call that the most modern tool in his shop! He's pretty much a crescent wrench and ball peen hammer guy. Poor man inherited 720 acre farm from his father, 20 years ago,and is now down to 320 acres after losing the balance to the bank. Doing the math at 2000 per acre he has lost roughly 800K, or 40k per year. Has about a 100 bred cow operation and carries the calves down to the basement of his house to warm them up! Averages about 15% open cows. BTW he uses all green, two bangers! Oh Yeah, Allen, he plows his row crop fields every year! Very happy when he gets 80 bu corn. Go figure? I get sick when I go over there for any reason. Gordo

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Bob M

02-16-2008 17:26:36




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
Gordo - Here's what I'd do:

1 - Squirt an ounce or so of engine oil into each spark plug opening; leave the plugs out.

2 - Remove the rocker box and pour a half quart of so of engine oil over the rockers and valve stems. Now replace the rocker box.

3 - Use the starter to crank the engine (plugs still out...) until pressure shows on the oil pressure gage.

4 - Finally replace the plugs and fire her up. (If it's indoors now I'd suggest rolling it outside first - cause it's gonna make some smoke when it first lights!)

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Tom Windsor

02-16-2008 19:02:19




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 Re: Pre Oil Rebuilt H? in reply to Bob M, 02-16-2008 17:26:36  
Gordo..Just spinjning it over with the plugs out may not prime the system. I have not ahad any luch with this block accomplishing this--on other blocks I have. The best approach, with this particular block, is to do it with the squirt can in the oil pressure gage line attachment point on the side.

Old, how about some more details on your system of doiong this. I do not understand how you do it with air pressure????

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Tom Windsor

02-16-2008 19:04:13




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 Re: Pre Oil Rebuilt H? in reply to Tom Windsor, 02-16-2008 19:02:19  
and I notice I cannot spell either!



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Janicholson

02-16-2008 17:20:07




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 Re: Pre Oil Rebuilt H? in reply to GordoSD, 02-16-2008 17:16:20  
I would prelube the entire oil gallery. Use a pump type oil can and a rubber hoes or fitting to inject oil into the oil pressure gauge hole in the block. The idea of oil in the cylinders is good as well. A squirt from the same oil can is called for. JimN



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