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Great idea! I wonder if a cylinder ring compressor would work. Heck I have thin sheet stock to compress the rings. Yes the block bore is chamfered and somewhat polished. Let's say it's very smooth for cast iron. What's happening is the friction from pressing the sleeve is firstly pushing the...

Oh I do have a mill and lathe. I thought of widening the grooves of the sleeve. I'm thinking it's just not enough room for the rings to glatten out and squish. When pressed they are cutting ong the edges of the oring groove of the sleeve. Now that's just my observation guessing as you can't see...

I've got a little 25 hp chinesium tractor. So no real formal specs to toss around. I rebuild this thing new last summer. All new internals and seals. The sleeves are wet press in with two 4mm thick orings as seals on the bottom of the sleeves. Seals off the coolant from the oil sump. I...

I had freshly rebuild my jinma farm pro 2420 last summer. Had very little hours on it. Checked the oil this spring and it was full of antifreeze. I tore this thing Down and inspected it with a fine tooth comb. No cracks nada. I added pressure to the coolant side and it seemed to be leaking from...

Our lots are full here. I know one thing! I have been in the market to need and want to buy a tractor. The prices are frigging unreal!! Even used implement prices here are stupid compared to a few years back. Chinese tractors once sold new for 3-5 grand new now they are selling for 7-9...

Yes I didn't think of that. There are freeze plugs under the rocker arms. However I think I'm on the trail. I put it all back together with a new head gasket. I pressurized the coolant side to 20 psi. I've got drips coming from the rear sleeve. It's not really clear if it's from the outside of...

No she's stone age basic.

Thank you so much for your insight! Last night I suspected a rolled Oring on a sleeve. The more I laid in bed thinking. There are two Orings. It would have to roll both or pinch/ break both. Possible YES likely No. Then I kept thinking about the coolant so high in the engine. All the way on...

That's my sneaking suspicions also. I'm not sure how to rule out a head gasket or the head though.

It does have a mechanical pump. What os puzzling is the oil is not milky. I have no idea when this happened but nothing indicates it's been ran like this. It's almost like a frozen cracked block or cracked sleeve. This antifreeze is new and like 30 below plus I live in Alabama. I have no idea...

Here are a few pics of the head and cylinders.

I hope somebody will give me a little direction or outside insight. Please! I have freshly rebuild this little tractor last summer. Everything new but the block. It was meticulously build to the best specs i coukd obtain. Furthermore, It was used lightly and only a few hours this year. Never...

I thank you all so very much for the replies and help!! This is what I needed! Thank again!!

FOUND IT!! Well.... what in the hell goes in front of the seal to keep it in place if it’s pissibke to push out? Why did it push out? Why is it sucking air instead of pushing fluid out into the crank case? Sucking air but blowing the seal out! Hmmmm There is a groove but it doesn’t look...

FOUND IT!! Well.... what in the hell goes in front of the seal to keep it in place if it’s possible to push out? Why did it push out? Why is it sucking air instead of pushing fluid out into the crank case? Sucking air but blowing the seal out! Hmmmm There is a groove but it doesn’t look like a...

Oh and it flows fine. Me being an idiot took off an output line and put it in a jug. ““Testing your exact theory”” I was just going to bump it over to see the flow. I seen it alright! The motor starts on on a half a bump!! 🤣 I got drenched before I could shut it down! Yeah that hard line...

Well how this works is as follows... In the sump or reservoir there is a brass mesh filter with a pickup tube. That runs vertical and connects to the outlet or bolt on bracket which has the outlet for the hard line. Now the hard line is a mushroom taper fitting. No O-rings. It connects to...

Hey guys, I’ve got a farmpro 2420. I started having overflow out of my vent tube. (Problem)lol Please read below before rushing to give advice. Likely already checked the basics. Well after inspecting, it appears I have air feeding into the system. Let me explain. On this tractor there is...

Hey thanks for this info!! This eases my mind a TON!! I knew I did an excellent job rebuilding this thing! Thanks so much to everyone with their answers and knowledge they have so freely given!!

No sir not to argue but on these Chinese tractors, what you buy is what you get. Not a lot you can do or say. It ain’t a Ford whereyou can just drop back by the parts house. I own a machine shop as my business. I mic’d the crank and checked the bearings. I checked the side gap, ring gap, etc...

These are images of rpm and pressure.

Yes brand new pump. The pump is gear operated internal design. I’ve seen no sign of a relief made into it. The only thing I know that’s on this tractor is what I think to be a oil regulator in the form of a spring and ball bearing tensioned by a set screw. It is located on the oil filter...

It was a brand new standard crank. New cam new bearings. All brand new and no need to gage. Everything but the head and block is new.

Any ideas on what to check and how to go about it??

Well It’s a brand new mechanical gauge. I would hope it’s not that. Before I rebuild it and the main reason was low oil pressure. It’s strange... I was also thinking it should hover at 40-45 then drop to about 30-35. At real low idle it’s as low ad 5-10.

Hey guys I have a 20 hp farmpro / jinma actually a 2420. I’ve been battling for a while! I’ve resorted in a complete rebuild inside and out. Everything is brand new! Yes oil pump also. When I first cranked it up I would get about 20ish lbs of oil pressure at a little above idle. When I reved...

Okay my memory was close. What I was doing is pulling up the front number one cylinder just after the exhaust closes and just before the intake opens. On the flywheel the indicator shows 0° tdc. I was setting both intake and exhaust lash on that number one piston at that point. What you are...

Hey guys I have a little two cylinder diesel Tractor With solid lifters. It’s been years since I’ve had to set valves and my memory is rusty. This thing has no manual but but I know the gap tolerance. Can anyone help refresh me?

Hey guys I posted the other thread about the injection pump. I figured I'd post a thread that isn't labeled so specific to be misleading. This tractor is new to me and so has had me confused with some issues. At first it had a knock in the rear two cylinder engine. Turned out it was fuel...

Hey guys I know most of you will grumble about chiniesium tractors but that's what I got. I just purchased a little farm pro 2420. It had a knock in the rear cylinder. There was some white smoke and more if I throttle up. sooo off to the races to figure it out. I noticed that one of the...

Hey guys I know most of you will grumble about chiniesium tractors but that's what I got. I just purchased a little farm pro 2420. It had a knock in the rear cylinder. There was some white smoke and more if I throttle up. sooo off to the races to figure it out. I noticed that one of the...

Hey guys, I just bought a farm pro 2420. It had a slight "what I think" to be a fuel knock. I noticed it was missing a stud on the rear injector. So I cleaned removed and cleaned the injector and replaced the missing stud. This cured 80% of the knock! The guy I bought it from did say the...

Here is another picture of the pump assembly that I have found on the net.. You can see on the left side there is a concave hole but the other side is flat or in my case woodruff or slit.. The pilot pin screw I AM ASSUMING is the hole the sleeve in place while the plunger goes up and down.. I am...

Ok I got the assembly apart and got it cleaned.. I used carb cleaner and ZEP 45 along with a little compressed air... I got them unstuck but as I figured not ever touching anything like this before I AGAIN found myself lost.. Here are the pictures of the assembly. Sorry I do not know the names...

Hey guys I posted another thread asking about fuel lines.. Now that I have that worked out thanks to you guys I have delved into deeper waters... Let me start by saying I came up on this ole Bison II almost free.. I traded an old 88 dodge dakota not running in real rough shape for it.. I gave...

This is the lines I am talking about.

Hey guys it's been a while since I have posted here but now I find myself needing a few questions answered. I am new to diesel engines and have acquired a little bison 25. It has ran down quite a bit but still repairable. The lines on top of the injectors are rotted and just done. They look...

Ok now for the culprit that I think is causing everyone the grief.. It is called a check poppet assembly.. If you look on the bottom of your valve bank you will see a plug that is held in by a snap ring.. You can see the size below.. ON the front bank there are TWO for this purpose I only...

Here is a close up view of the "conical plunger" that is damaged next to the new machined part.. I mentioned that I had machined it out of carbon steel.. I know some might suggest tool steel.. I know buuuut when I took a file to the old one it actually bit in.. It didn't skate off like a...

Ok now underneath the orifice will be the screen an beneath that a spring now we come to this part of the valve.. It sorta floats and rides up and down inside the pilot valve body.. Keep in mind which way it comes out as I suppose someone COUUULD actually reverse it.. Notice the "staking" yes...

Here I removed the "CUSHION" relief is is marked on the hex head 1600 P S I as that is what the parts break down refers to it as.. It has one set of holes at the base and if you look you can see a ball bearing in orifice.. Here is the top view of the orifice.. Ok now to spare room I did not...

Here I have laid the control valve body out for you to see as reference if you have never taken yours out before. Be extremely careful when you take the rod out as there are three little ball bearings that can get lost VERY easy.. I almost did not find one of mine and thank god for neodenium...

LOk, I purchased this old 3414 Bc144 gas burner for about $1500, got her home and started digging. Well not long after I noticed that it was awful weak.. I started to ask questions on the internet and read other posts where TONS of folks where having the same issue.. I could start it up cold...

Ok guys, this post will be a picture heavy illustration of my disassembly of the front valve bank on my International Harvester 3414.My machine just so happens to be a bc144 english gas burner.. I am also posting this as quest for help and suggestions.. I know there are few posts floating around...

Hey guys I have done a lot of searching and have plenty threads regarding these old odd balls but none that has been helpful to my issue..... Let me explain my issues and any help will be GREATLY appreciated.. I bought an old 3414 case IH backhoe.. I think the backhoe part is another model...