Maintenance & Technical > KDX (KX step child)

KDX Leakn Head Gasket

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Hillclimb#42:
I have yamabond. How do you lap them to gether without total disassembly? Wouldn't the compound be everywhere? Do you just rub in circles, 1/4 turn the head then more circles?
It barely has smoke coming out and only during a high rev. I put the gasket on dry, do you guys oil, grease or adhere head gaskets normally? Thanks for the tips, guys, I'm listening.

Friar-Tuck:
 Yes Kyle you have to pull the cyl, head & remove the studs from the cyl. And yes it will get in the water jackets, cyl etc.
    Look up a glass shop near you and ask for a piece of scrap around 12" square or so, the thicker the better (without getting crazy.)
 I taped on sandpaper and use acetone to wash away the filings.  The tape came unglued on the bottom of the glass so I held the bottom of the paper with one hand and worked the cyl and head w/the other.  This is also messy.  I kept the tape dry on the top (furthest away from me) by putting two pencils under the glass.  this way the acetone & filings run down away from the top edge.     

 I guess you could also lay some paint stirrers on the bottom of the sandpaper and use "C" clamps to hold it down,
 (let the clamps overhang the workbench)  :|

  I move the pieces in a figure 8, I don't push down on the piece, just the weight of the part was enough to see it working.
The other reason I don't push down is to not "Influence" the cutting in any one place.

After you think you've gotten the parts flush, use some prussian blue to verify you got all the imperfections out of the mating surfaces.
 Hope this helps some...

  Tuck\o/

Maybe Larry or Jerry have a better way or Idea, I'd be interested in their opinion too.

barryadam:
Check for surface plates (granite) in used machinery places, or at machinery stores.  Usually a bargain and much less flexible than glass, and if you get a more precise one, it's flatter than glass (unless you are paying for optical quality glass). A surface plate is pretty heavy and solid, so there's no need to hold it like a piece of glass while working.

Attach sanding sheets using 3M contact spray adhesive.  Remove any "price tags" from the back of the paper, or it'll affect the  surface.  Vacuum metal dust off the sheets on a regular basis.  Remove sheets when worn and clean up the granite with acetone.

Larry Wiechman:
 A granite surface plate is the hot setup! A 12" x 18" import plate can be bought for less than the shipping costs. Great for checking flatness of cases, clutch plates and brake discs.
 http://www.jtsmachine.com/jtswebshop/measuring/PM036.asp
 Good supply house. They used to knock 10% off the price of all orders placed on Tuesdays. It never hurts to call and beg. :-D

 Chamfer the tops of the threaded stud holes. This relieves local high spots as the tension from the stud distorts the sealing surface. 
 
Larry

Friar-Tuck:
 Thanks guys!
  That's the kind of Insight that separates the amateur from the pro's  :lol:
I have that adhesive...why didn't I think of that!....( insert Forehead slap here)  :lol:
  Tuck\o/

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