oil in clutch case

Discussion in 'Frame Mounted Engines' started by urbancombat, Dec 22, 2007.

  1. urbancombat

    urbancombat Guest

    I have black oil residue in my clutch case. DAX 2 stroke Anyone ever had this happen? It's got some miles on it. I had to clean all the oil out, as the plates wouldn't grab. Is there a seal in there that needs replacing?
     

  2. fetor56

    fetor56 Guest

    "black oil residue"....this is news to me........your sure it's oil and not some sorta grease residue?
    E-mail Dax(or possibly he might see this post) with specific details(eg,how many miles/your maintenance routine,etc) and get his advice,the guys pretty knowledgeable.
     
  3. azbill

    azbill Active Member

    open the magneto cover and see if the seal behind rotor is leaking
    I have seen this before and it made my clutch slip and squeal
     
  4. urbancombat

    urbancombat Guest

    yep

    yep, did that. My clutch was slipping too, I cleaned it all out with some solvent, and some laundry detergent, also roughed up the pads and plate, and it kicks in fine now. I've got a fair amount of miles on it. it's two years old. The residue looks just like black engine oil from your car's crankcase. I don't think it's gear lube, I put that on sparingly.

    It's hard to tell if you have a leak, you can't see behind the plate. But the first time it happened I had black oil all over the plate, inside the casing, ugh.
     
  5. Abeagle

    Abeagle Guest

  6. Egor

    Egor Guest

    You will find the seal behind the small gear is bad. I had one go on one of my bikes. The oil is from the crankcase and is being pushed out instead of being fed to cylinder. I was lucky I dug through a box of seals and found 4 that will fit, I could not tell you what they were for. If you keep going it will grind the metal part up in the small gear. Have fun, Dave
    First pic is, seal in pieces, small ring should be embedded in the rubber. Second is new install.
     

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    Last edited by a moderator: Dec 29, 2007
  7. wavygravy

    wavygravy Guest

    egor im haveing the same problem with my engine! how did you get small gear off crank end? we tried to pry it out to no avail! also do you think the blown seals are due to crank end play, were crank berrings ok?
     
  8. Egor

    Egor Guest

    WAVY The way you get the gear off is with a puller, special made for this engine. A lot of the kits came with the puller in the box, if not I suspect you will have to buy one. Everything was OK the bearings were fine it is just that the seals are poor quality, every time the piston moves down it compresses the gasses in the crankcase, or pushes the seals out. Have fun, Dave
     
  9. fetor56

    fetor56 Guest

    This puller Egor i'm assuming it's a seperate puller to the countershaft sprocket puller that's supplied with the kit...is that right?
     
  10. Egor

    Egor Guest

    No, that is the same one, you just take the bolt out of the center and flip it over and use the other side, put the bolt back in from the other side. I put grease on the threads to help it work smoother. Make sure you get it threaded all the way in the gear. Good luck. Have fun, Dave
     
  11. filcan1103

    filcan1103 New Member

    ty egor for the info/pics.im trying to figure out how to pull the driveshaft.i wana ask if you ever taken apart the lower drive train casing.im planning on buying the clutch kit assembly to replace the mandrel(Part#18 in pic. starnut clutch adjuster stud bolt that broke off).i have no luck searching for this info on how to remove it.seems the bearings are pressed in.buying new lower end is not option for me coz i love working on this engines and wana sweat a bit..i'd appreciate any info from any MBC'ists..CHEERS!!!
     

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  12. Egor

    Egor Guest

    I see your quandry. Yes I have worked on the final drive. You will have to split the cases to work on that part, everything is captured between the cases. Also it is a bit of a chore to get that shaft out of the center of the part, it is all loaded under spring pressure, you can do it. You will have to remove everything from the ends of all the shafts, then get all the screw's out of the cases and they should come apart fairly easy, don't pry at the seams or it will never seal again. Have fun, Dave
     
  13. RATRODER

    RATRODER Guest

    Filcan,you don't have to spilt the cases,you can push the shaft out from sprocket side.The clutch side bearing will come out with the shaft,hope this helps. louis
     
  14. ibdennyak

    ibdennyak Guest

    Egor, I think you must be a better man than I am. I spent a good part of today trying to get that thing off. I used the puller, I oiled the threads, I hit it with a hammer, I even dusted off my best garage vocabulary. Nothing. Can it be heated without hurting anything else?

    Denny
     
  15. filcan1103

    filcan1103 New Member

    whewwws!!thanks so much guys and glad i didnt have to split open that casing.i really didnt want deal w that crankshaft..hehehe.pressed out only the "shaft stud side" and out she goes w one of the bearings still attached.(do not press on the bearing side,both bearings come out only outwards).well, lets hope the drive shaft repair kit comes fully assembled,sure hate to deal w the spring on the driveshaft.anyone ever have to replace this driveshaft?
     

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  16. filcan1103

    filcan1103 New Member

    okay, i made progress with the drive shaft.i managed to take it apart.shown are parts of the driveshaft and the broken clutch adjuster bolt. while waiting for my $19 parts to arrive.link to parts list is in here.

    http://www.the3scompany.com/images/parts.pdf
     

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  17. Egor

    Egor Guest

    Denny were you able to get the shaft off? Sorry about the post I never tried to get it out the sprocket side, I thought there was a shoulder on there, I guess their using the bolt on the big gear to hold things together, and the clutch lever pushing the shaft in.. As to the gear off I never had that much trouble, I don't think it would be a good idea to use heat. Have fun, Dave
     
    Last edited by a moderator: Jan 17, 2008
  18. ibdennyak

    ibdennyak Guest

    Yeah, thanks. :roll: In my case, I want to remove the "flywheel" crankshaft from the gear shaft and convert it to a gearbox for another engine, ala another thread here. Little sucker is gonna fight me all the way though. Guess I will have to get a bigger puller to go with the bigger hammer. :smile: Vocabulary is already maxxed out. Mothers are locking their children in the house when they see me. :shock:
     
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