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Bills 389 Tri Power

  • You will notice the drilled and tapped Oil Galleys.  These will keep the oil in the block and not let it push out the plugs and super oil the chain.

    • You will notice the drilled and tapped Oil Galleys. These w…
  • We installed the cam shaft bearings with my special tool.  I just love that adapter.  It puts those bearings right dead nuts on.  When you put in the cam and it just spins by hand there is no better experience.

    • We installed the cam shaft bearings with my special tool. I…
  • It is all about placement in reference to rotating and stationary items.  If there is a rotating item that is interfering with a stationary item then you get friction.  This creates heat and will destroy an engine.

    • It is all about placement in reference to rotating and stati…
  • Another area of consideration is the location of the camshaft lobes under the lifter bores.  If they are not in the right spot then you can have some unique problems here also.

    • Another area of consideration is the location of the camshaf…
  • Here you can see the correct installation of the rear main rope seal.  I use these all the time and have no problems with their design.  Matter of fact the rope seal can continue to work for many years if you properly lube oil and filter the motor.

    • Here you can see the correct installation of the rear main r…
  • Now once you install the bearings, the crank is ready to go in.  Of course you have miked the crank journals to check the machine shop.  Then ordered the correct oversize bearings.

    • Now once you install the bearings, the crank is ready to go…
  • If all that has happened then the crank will bolt in and turn by hand.  It will be difficult to turn at first due to the rope seal but after three or four revolutions the oil should be over the seal and it should turn easy.

    • If all that has happened then the crank will bolt in and tur…
  • The tolerances on this crank are about .00175.  Almost .002.  This is the preferred range that I shoot for.  Of course this is the end result of correct Main Line Bore, Cap Size, Bearing Size and Crank Shaft Journal size.  Once bolted in you cannot cha...

    • The tolerances on this crank are about .00175. Almost .002.…
  • Now you get to put in the Cad Cam Connecting Rods.  These are very unforgiving.  If your little machinist was out drinking coffee and forgot to keep an eye on the Sunnen Crankshaft Machine there may be alot more clearance here then you need.

    • Now you get to put in the Cad Cam Connecting Rods. These ar…