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250cc and Above Engine Tech Technical Discussion Forum for 250cc and up Engines

 
 
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  #1  
Old 11-03-2011, 11:56 PM
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Default kawasaki V-twin --need help!

Ok, v-8 disassembly, NP, yank the intake, heads valley pan, spin it, pull the oil pan and go to town ...this thing ....


Got it stripped down and all the covers loosened. The crank is moving with the main cover and I only get about 1/8 inch gap before something is holding it up. I removed the first outer cover exposing the water pump impeller, pin in recessed slot--no way to get that off.

I've checked down every bolt hole to make sure there's no hidden fasteners of any sort. butchered the front seal thinking that might be holding it up ... Only other things i see are two plugs. (shown below) to me they look like plugs to seal the oil and water passages.

What am i missing that's holding this main cover on? I don't want to pry on it any more than I have, (ive been gentle) I know it'll snap something

I'm hoping that the crank/rods don't have to be in any particular position, as this thing is locked up tight (spun mains or rods)
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  #2  
Old 11-04-2011, 09:28 AM
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Any suggestions are welcome! )))

Managed to locate a blown-up parts drawing of the crank case and crankshaft assembly. It is a plain bearing set-up. Having never done small engine internals before, I had no idea what to expect. I figured it had saddles/bearings and caps internally. Looks like my issue is the crank bearing is seized on the shaft and press fit in the case side. gonna try a little heat. (propane torch). I that doesn't do it, I'm going to try and work up a puller rig.
  #3  
Old 11-04-2011, 11:55 AM
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roadblock #1 cleared!
  #4  
Old 11-05-2011, 01:02 AM
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what type of engine oil we should use in summer season for a racing bike?
  #5  
Old 11-09-2011, 11:22 PM
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what's the airspeed of an unladen african swallow?
  #6  
Old 11-10-2011, 07:34 AM
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I don't know ..... ahhhhhhhhhhhhhhhhhhhhhh

Killer Rabbit?

Now for something really different ...

Anyone have a recommendation for sealer type for the crankcase cover? I used Form-a-gasket #1, the dark brown type which dries to "hard" for the waterpump covers. The excess seems to break off easily and I'm thinking i don't want to use it for the main cover as the idea of a bunch of hardened chunk floating around in the case isn't appealing. BTW, i did find that it was definitely metal that got between the crank journal and case. there was what looked to be steel embedded in the galled areas of the cover. Most likely either a shard from a broken governor weight or the weight's retaining pin.
  #7  
Old 11-10-2011, 08:24 AM
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man there's no way I'd put that cover back on without using an acutal paper style gasket. Either order the right one or get some gasket paper and make your own. That's a hell of a lot of work to have to come back through in order to fix a future oil leak.
  #8  
Old 11-10-2011, 09:05 AM
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Factory install for the covers except the rear vent cover was without gaskets, white dries-pliable type sealer only. It looks like the crank relies on the side cover for endplay, a paper gasket would change that, it would also mis-align the oil pump and water pump gears and pull their shafts out of the support bores inside the case by the same amount--it may also cause oiling issues, as the support bores do have drain holes in them, gap the end of the shaft too much away from the back wall of the bore and I'm afraid it may not function correctly.
  #9  
Old 11-10-2011, 09:12 AM
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Go to Auto Zone, they sell Right Stuff made by Permatex. This is what GM uses on their engines. I put my 6.5 diesel together using this and after over 100,000 miles no leaks except the main seals. It comes in a can resembling a whip cream can for around $15.00. This is not like the silicone gasket maker you buy in a tube. This replaces gaskets. Follow the directions by putting down a thin bead then assemble and tighten. Just make sure surfaces are clean. It is impervious to oils and anti freeze but not fuel.

TOM
  #10  
Old 11-10-2011, 12:51 PM
speedshopmike speedshopmike is offline
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it's just a flesh wound.

"halomar" sounds appropriate for what you want, jim.
it's brown, nasty, and stays flexible.
(i hope i spelled it right, i'm half asleep)
  #11  
Old 11-10-2011, 02:06 PM
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hylomar,-- my tube of it was all dried up.
  #12  
Old 11-16-2011, 10:36 AM
maverickma maverickma is offline
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Quote:
Originally Posted by speedshopmike View Post
what's the airspeed of an unladen african swallow?
WHAT....is your favorite color?
  #13  
Old 11-16-2011, 01:01 PM
speedshopmike speedshopmike is offline
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bring us a shrubbery.
  #14  
Old 11-16-2011, 01:10 PM
maverickma maverickma is offline
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A what?

Last edited by maverickma; 11-16-2011 at 01:12 PM.
  #15  
Old 11-16-2011, 01:11 PM
maverickma maverickma is offline
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A what?
  #16  
Old 11-16-2011, 01:21 PM
speedshopmike speedshopmike is offline
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we are the knights who say NEET.
you will bring us a shrubbery.
nothing fancy, an ordinary suburban one will do.
  #17  
Old 11-16-2011, 02:21 PM
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I have trimmed many shrubbery in the past.
  #18  
Old 11-16-2011, 04:32 PM
maverickma maverickma is offline
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Quote:
Originally Posted by speedshopmike View Post
we are the knights who say NEET.
you will bring us a shrubbery.
nothing fancy, an ordinary suburban one will do.
Every time I read these I'm hysterically laughing. Absolute classic.
 


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