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  1. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    I remember someone here said that they should be either 5mm or 7mm thick, I can't remember which. I am going to a very good engine machine shop near Portland Oregon; "Portland Engine Rebuilders". The owner has been in business for 40+ years, however Super 55 diesels in this part of the country...
  2. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    I fab'ed a pressure plate and delivered to the engine shop this morning, hoping all is good. John said I need to raise the valves up by using valve seats. I am a bit concerned about breaking into the water jacket. Can anyone provide advice on this like the size or thickness of the valve seats...
  3. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    Hi John, I sent you a message. But I don't mind my cell # is all over the net: 9712269006
  4. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    Thanks, I was wondering about them. I was thinking rust and was let set for a long time.
  5. M

    Also, is there a need to raise the exhaust valves as well?

    Also, is there a need to raise the exhaust valves as well?
  6. M

    Hi John, Charles from Magnum Powers here. My phone number is 971 226 9006. I think from the...

    Hi John, Charles from Magnum Powers here. My phone number is 971 226 9006. I think from the sounds of it my Oliver Super 55 is redeemable. I'm having a pressure plate made today so the shop can pressure test the head. I was communicating a couple years back about having valve seats installed...
  7. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    Interesting, this is my first experience with a combustion chamber sunk into the head above the exhaust valve like this. Seems like an odd setup to me. Was this a common diesel typology back then?
  8. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    Okay guys, here are some pictures of the cracks. Seems all the cylinders have cracks in the same place, from the head surface going down to the injector hole. What do you think? The engine shop does not have a pressure test plate for this head so I'm thinking of having one water jetted.
  9. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    My dear wife of 46 years on my Super 55. :)
  10. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    BTW, the engine sometime in the past had 3.625 pistons and sleeves installed. The back two pistons had broken top compression rings that really gouged up the sleeves too much to be honed out so I have two pistons with sleeves and rings here ready to go in.
  11. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    Hi John, will do. I can't get the head back before Monday as the shop is closed on Fridays that has it. I'll post pictures of the head Monday. I was planning to split the tractor after the engine was reassembled so I would not have to fight the splines being turned when disassembled. Also I...
  12. M

    Oliver Super 55 Diesel Cracked Head and PTO Clutch

    Hello All, A couple of years back I purchased a beat up 1955 Oliver Super 55 and did a lot of work to her including replacing a lot of bearings, shafts and the like because it was never greased or properly maintained. The PTO clutch was locked up as the steels were warped and the frictions...
  13. M

    Starter for Super 55 diesel

    The starter gears have the same number of teeth however the diesel appears to have a smaller diameter flywheel causing there to be too little engagement of the flywheel teeth and starter teeth when using a starter for a gas engine. My solution was to slot the starter mounting bolt holes so the...
  14. M

    Starter for Super 55 diesel

    Been working great.
  15. M

    Starter for Super 55 diesel

    Been working great.
  16. M

    Oliver Super 55 Diesel PTO clutch Issues

    Hey Chris, could you send me an email or give me a call, I have some questions. Thanks, Charles 971 226 9006
  17. M

    Oliver Super 55 Diesel PTO clutch Issues

    Nice video!!! Wish I saw that before I started the restoration.
  18. M

    Oliver Super 55 Diesel PTO clutch Issues

    Inspecting the clutch the teeth on the fiber friction disks are breaking off. The clutch lasted just a few minuets before deteriorating, maybe less than a minuet. The teeth in the hub were smooth and I replaced the three bars on the inter hub. I have the feeling the friction disks were made...
  19. M

    Oliver Super 55 Diesel PTO clutch Issues

    BTW, the keeper push pin is moving freely and popping back out into the notches as it should to keep the adjustment nut from moving from its set position.
  20. M

    Oliver Super 55 Diesel PTO clutch Issues

    I replaced the steels and a few fiber disks and re-assembled the PTO clutch. I tightened the nut till its hard to push the clutch arm over center. I attached a 60 rotary tiller to the tractor and it started tilling quite well but soon after 5 minuets or so the PTO clutch started slipping and it...
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