I.H. model 674 239 engine diesel

In 2017 I had bought a I.H. 674 model tractor. It had a blown engine somebody threw a rod. I thought I do this all the time with gasoline engines buy another block and rebuild it. I called around and bought one bare block had it shipped to me. In 2018. Well that bare block and parts have been in the machine shop since then. The person does not have a hot tank but an engine washer. He tells me it is taking time because this bare block was dirty and had dirt in it. That it is hard to clean it. Yesterday he told me I have the wrong camshaft for it. The engine only takes a three-camshaft bearing not the full amount that this on camshaft takes. I am right now confused by this and need some help. The block came from All state tractors. the casting number on it is. 239D120 286359, the package slip say's it came out of an International 685 Eng-6346. Is this really a 239 Diesel engine I am asking myself. If I can't use the camshaft taken out of the engine block what camshaft is the right one. How do I get one for this engine I have now. Yes, I do need help this is my first time I ever did a diesel engine. I have always stuck to gasoline engines. Thanks.

Brent

I recommend that you drop down and post you question on the IH board portion, of this site. There are a few on there that bleed IH red, and can probably help you out.

So you are saying that the camshaft has only 3 journals to turn on or there are more. I think you need to go look at the numbers on the block. If it is a 239 block it should say D239 on it if it is not a 4 cylinder block it is not the right block for it. The newer tractors had a D246in some models. Not for sure which ones. the block should not be that hard to clean up even if it is dirty. I've cleaned them in regular parts washers before. The oil galleries should wash out fairly easy by pumping parts washer fluid through them then blow out and repeat till clean. rest of the block is pretty easy to clean. I power washed them out with steam cleaner then oiled down right away so it didn't rust from lack of oil on it. Set inside dried out and went to work on it. I think if I remember right I sprayed it down with a light spray of diesel fuel to keep it from rusting immediately. As for the cam I would take part numbers in with me to look at those parts and All State may not allow a return now a year later.

I do not know you or your machinist, you I would give the benefit of doubt because you have been a YTer for 13 years. On the other hand a machinist that keeps your block 5 years and tells you it is because it is dirty gives me a bit of question, IDK he may be the best guy ever. So if the camshaft you took to him takes 5 bearings that looks correct per the online parts diagrams for your D-239. If the block the machinist is looking at which he claims you gave him only requires 3 then it seems as though it is the wrong block. I have attached the online diagrams provided by Messicks,
they are identical to the manufacturers but have some added features. In the linked page double click ..Complete Machine.. go to ..D-03 Camshaft.. you can clearly see the cam requires 5 bearings. Next go to D-08 Cylinder block, at the top left it says ..Print PDF.. click that. On that page scroll down 3 full pages of parts listings, at the bottom of the 3rd page is Key #1 for the block. It gives you the block part number 3136316R13. On the right side it gives you the superseding part number information. At the end this is missing.. Consists of Superseded by part number: 3228620R91..
A web search of ..IH 3136316R13 returns several results. I would really have to question the one by Wengers that says it is for a 260A, someone would have to verify that it would be correct. IF it has the proper PN assigned to it it should fit.
Good luck getting someone to refund your money on a part you bought 5 years ago!
IH D 239 parts diagrams

Go and retrieve whatever is at the machine shop first thing Monday morning. If they want to know why, you need everything in hand to make sure you get the right parts, and when you have everything right you'll bring it back.

There isn't anything conceptually different about the bottom end of a diesel from a gasoline engine. What you know about gasoline engines translates directly, so you DO know about diesel engines. They both have blocks, crankshafts, pistons, rods, main and rod bearings, and camshafts, which all have to be for the same engine in order for things to work.

Either you have the wrong parts or the machine shop is incompetent. Either way you need to get your parts back to determine what is going on.

I believe that engine requires a balancer assembly; it has to be timed to a gear in the middle of the crankshaft. The balancer is integral with the oil pump somehow, or at least the pick up tube. If you don't have the balancer assembly, it may be hard to get. Mark.

I wonder if you got the C200 gas block, If I recall it has three cam bearings.

Also, it is very likely the wrong block so you head would not fit on it. If it does it would be a big surprise to me.

Dear Mr. Skipper: I am sorry I did not know this web site had other post boards to go to. To understand that I have been on Yesterday tractors since 1994 and watch it grow to what it is today. To understand that I have always help others in strange question on the post board. to wonder why this offense, you are being posted on the discussion forums. which if I had posted it back in the year of 1990 this would have been acceptable to everybody on this web site. I have to say thank you to everyone who did replay with an answer that I already knew. somehow, I wanted to make Shure I was still thinking straight. Like I said before I have watched this web site grow big since 1994. Sorry I am a little tight, but I can remember when this site only tractor problems on the board and not just other Iteams listed on the board. This once was a great place to post tractor problems on the board and get great answer back. I mess those days. Thanks for telling me I should had posted it in the red post board. I did not know that made any differentness. to me any person who restores or repairs any tractor could answer this question I had posted.

Please,don't get your knickers in a wad,I think skipper was only suggesting that you might get more help by adding the IH board

Ok first, the 574, 674, 585 d239 only uses 3 cam bearings, yes the cam has 5 journals. Did the 685 use 5? Maybe but it doesnt matter, you only need 3. Shouldnt make any difference on the cam, 3 or 5.
Check numbers on block to make sure its a replacement for yours.

Brent, I will add I am sorry if anything I posted offended you in any way. I try to stick to facts on here but occasionally my emotions come unleashed at times. I also apologize that the link I posted to Messicks site did not open to the page I expected it to. Sorry for any confusion caused by that. Also in general I find that topics brought to Tractor Talk about IHC/Farmall, John Deere and for the most part Ford usually have enough viewers here from those brands that answers usually come forth here without going to the ..Manufactures topic section.. In the case other brands seeking more input within the brand usually is more productive.
I am now going to reply to RedMVa who has added another twist to this info journey.

RedMVa, interesting information you have added. Let me also say this you are far more the authority on this subject if you have worked on one of these engines I have not. To double check against the parts book that claims the required number of cam bearings is 5 what is your experience with these engines? Are you certain you are not confusing the fact that the gas engine for this tractor does indeed only have 3 camshaft journals? The main missed opportunity here is that the OP did not upon him receiving his replacement block immediately do a thorough comparison of it with the original to make sure it was an adequate replacement part. In the 1st link is the CNHI parts page for the D-239, this is the only parts book available for the 674 diesel engine. The block is key number 1 showing the part number given in my previous post. Key number 29 is the front cam bearing showing 1 required, key 31 is the cam bearing for positions 2-5 showing 4 required to make a total of 5. In the 2nd link is the CHNI cylinder block parts page for the 685 diesel. It shows number 30 as the block part number which is 3136316R21 the same as shown in the D-239 diagram (the Rev. number shown in the D239 book is R13 a later or higher revision can replace an earlier one) The 685 parts diagrams also shows no. 10 as the front cam bearing requiring 1 and no. 11 as the 2 - 5 position cam bearing showing 4 required for a total of 5. I do not know how the ..cast in.. numbers of his block can tell him if it is correct, maybe someone else can. It may be possible that there are some stamped in numbers that may be of help.
CNHI D 239 diesel engine diagrams

CNHI 685 crankcase parts diagram

(quoted from post at 06:58:37 02/19/23)
Please,don't get your knickers in a wad,I think skipper was only suggesting that you might get more help by adding the IH board

Click to expand...

I agree. It was not meant to be offensive, but helpful. Nobody is saying you did anything wrong. They're just suggesting that the forum which is specialized in your brand of tractor is a better choice. Not everyone with IH knowledge reads the "Tractor Talk" forum.

I've been on this site going on 20 years in one form or another, and the brand-specific boards have always been here.

Forums are categorized to make things easier on everyone.

Well being I just put one together this month and have done 2 others within the last two years, all D239s. Every one had 3 cam bearings, yes the block has 5 spaces and the cam has 5 journals but only 3 bearings, front , middle and rear.
Unless and Im not sure about this cause Ive never looked it up, a D206 and D239 block are the same and most of the internals but there are a few differences, just some food for thought. Might have go look that up just to satisfy my own curiosity

(quoted from post at 07:28:17 02/20/23) Well being I just put one together this month and have done 2 others within the last two years, all D239s. Every one had 3 cam bearings, yes the block has 5 spaces and the cam has 5 journals but only 3 bearings, front , middle and rear.
Unless and Im not sure about this cause Ive never looked it up, a D206 and D239 block are the same and most of the internals but there are a few differences, just some food for thought. Might have go look that up just to satisfy my own curiosity

Click to expand...

Thanks for the reply without getting too bent out of shape. Interesting about leaving the two bearing out. The oil passages must not be drilled.

Yes if all 5 were drilled, would have to go with five
bearings. Didnt think about that cause the ones Ive
done came apart with 3 and went back together with 3.