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About lbg57

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    Advanced Member
  • Birthday 10/13/1957

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    Sturgeon Bay, WI

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  1. Bolt grades?

    Would anyone know what grade of bolts were used on the letter series? 2,5,8? They have the regular dot, I-H, or WP on the heads but what grade would they be? ( For torqueing purposes) Thanks.
  2. 504 PTO

    A guy at work asked me a question about his 504 PTO. This is newer than what I am accustom to working on and know nothing about so I will ask here. He says that his PTO keeps turning even when he disengages it. He says it still turns but at a slower rate. Is their some kind of adjustment (PTO brake?) that can be made or does the whole PTO unit have to come out? If it has to come out, is it a huge project? Thanks.
  3. MD clutch question

    Just installed a new clutch and pressure plate on the MD I am working on. Isn't their some initial adjustment for the plate fingers ( height off the clutch disc or pressure plate) to set? The engine is off the tractor and I thought their was some dimension to set the fingers at before the engine was reattached to the clutch housing. I looked in the operators & service manuals and all it says is how to adjust the pedal free movement. Any thoughts? Thanks.
  4. I am installing the crankshaft bearings on our MD and have a question. The center bearing has the tabs so the bearing should not spin. The cap on ours has a pin also to stop the bearing from spinning. It looks like someone had drilled and installed the pin in the cap, does not look factory. Should I carve out the bearing thrust area to accept this pin or should I try removing the pin? Will it harm anything? What is your take on this? Thanks. I hope this picture thing works.
  5. MD sleeve question.

    Well here is the latest on this question. Today I talked to Will from Tech Support at Reliance Power Parts, the distributer that sold the rebuild kit. He did some checking and got back to me and stated that the parts I have are the correct ones. Their was a design change and the .005 sleeve protrusion is correct. Their was an improved fire ring on the head gasket that is to take the place of the step on the sleeve. Sooo I guess I will move forward with the assembly. I will let everyone know how it turns out when I get it running. Thanks again for everybody who contributed to this thread. Truly a great bunch of guys.
  6. MD sleeve question.

    I will try calling Reliance Power Parts and see if I can get someone to physically locate both a M & MD 4" sleeve to see if their is a difference and question them on this protrusion issue. I suppose it will be like pulling teeth to get someone to actually do this. I will post what I find out if anything. Thanks again to all those who have took the time to look into this matter. A great bunch here.
  7. MD sleeve question.

    That had crossed my mind also. Their are no pictures on the parts site to compare them to.
  8. Including pictures with a post.

    Thanks guys, it worked like a charm. Wow, I actually posted some pictures.
  9. MD sleeve question.

    Here are a couple of pictures of the sleeves and gasket. Hopefully. This is my first time posting pics.
  10. I realize this has been discussed in the past but I tried the search feature on here to find out how to post a picture with a post but can't seem to find the info I need. Could someone point me in the right direction? Thanks.
  11. MD sleeve question.

    Thank you Kal for your 2 posts with the service manual pictures. That somewhat clears things up. The piston/sleeve set I purchased is a Power Max Engine Parts (now owned by Reliance Power Parts) I got through a dealer. Unfortunately I do not have the old sleeves to refer to.. In Kal's posts it shows a sleeve with a step on the flange I guess to act as a fire stop and the gasket would sit behind that ridge. My sleeves are totally flat across the top flange protrusion, no step. With the current set up, the head gasket metal fire ring sits partially on top of the .005 flange protrusion of the sleeve. Do you think that this will work? Thanks again guys. Nothing can ever be simple I guess.
  12. MD sleeve question.

    I posted this question on here awhile back and received comments leading me in 2 different directions without a definite answer. Following is a little more info so maybe someone can clear up this question. Here goes. I am restoring a 1951 Farmall MD. I had the block to the machinist I use to check the block, install new cam bushings and install new sleeves. This is where the question lies. The service manual states that the sleeves need to be .041" - .047" above the block deck. When I got mine back from the shop the sleeves are only .005" above the deck. I called the parts distributor where I purchased the complete rebuild kit including all the gaskets and asked them what they thought. They asked the current mechanics in back and said no one ever questioned it before that they are aware of and there are not many old timers around who worked on these for a living to check with. Next I called the machine shop and asked the same question. Both the owner and one of his machinist said that they thought .041" - .047" was an awful lot and that most engines require only about .005." Next I posted the question on here and got answers in both directions. Some said that it needed to be at the .041" - .047" and others said that .005" would be fine. Today I called my parts guy at an CNH dealership and asked him. He said he thought that it was printed in the service manual for a reason but maybe there could have been a head gasket change somewhere that was made and that I should ask the forum guys again what their thoughts were as someone had to have had this issue somewhere in the past. Was there a head gasket change? I measured mine which is a CNH #225 604 A1 and the gasket itself is .075" thick and the fire ring on the gasket is .082". I know there are a lot of knowledgeable people on here who have worked on these older units that may have gone through this and give me a definite answer as to which is correct or know of anyone I can contact on this matter. Thanks everyone for your patience.
  13. MD part number help please.

    I am in the process of overhauling our Farmall MD. I was in need of a good engine idler gear and purchased one from a used parts vendor. I stated I need one for a 1951 MD and gave him the S/N. The one I received has a number on it of 264 664 R. According to my parts book the one I need is a 264 364 R1. Can anyone tell me if this 264 664 R will work on my MD or is this for a newer model like a 400 or 450 diesel? Any help would be appreciated. Thanks and Merry Christmas.
  14. nosih: The sleeve set I got was from Power Max Engine Parts. Their p/n is 141494 which crosses over to an I-H p/n of 306 039 R. These are the 4" overbore ones. Thanks.
  15. I posted this earlier this week and have gotten only 1 reply from MMI (thanks). Can anyone else shed a little light on this? Thanks. I am about to start assembling our MD engine, so I may have more questions later. I was reading the service manual last night in regards to cylinder sleeve replacement. I was aware of the sleeve protrusion above the block deck. It states that it needs to be between .041" & .047" above the crankcase block. I had an engine re-builder that I have used in the past do this engine also (turn crank, new cam bushings, pull & install new sleeves, etc.). I double checked the sleeve protrusion of mine and it is only .0045". I called him today and he said that the .041" - .047" sounded like an awful lot and didn't think the head gasket was that thick and that most engines with sleeves are at .005". I don't want to get this put together and run it and find out that the head gasket is leaking and have to do a tear down again. The question I have from the guys who have worked on these MD's, is that .041" - .047" the correct height needed or will it work as is? Any thoughts are appreciated. Thanks.