[SEL] bearing clearances

[Jim Kirkes]

Hi Peter,

1 opr 2 thousands ought to work ok.  I would make the bolts out of round stock and mill the head square.  Finding 9/16 will be tough and when you do 
it will be expensive.

Jim

Jim and Diane Kirkes
Hemet, California U.S.A.
jd.kirkes at verizon.net
  ----- Original Message ----- 
  From: Peter Lowe 
  To: ATIS ; oldengine.org 
  Sent: Thursday, March 05, 2009 9:32 PM
  Subject: bearing clearances


  Hi All

  I know we have spoken about this before, but I did not log the answers.

  I am making two (2) cylindrical one piece bearings, 4.500" long, crankshaft diameter 1.450", how many thousanths of an inch clearance should I allow for when boring out the bearing to take the crankshaft? I have brand new crank arms and want a nice snug fit with no play, but not too tight so it will seize, the correct clearance in other words. Lubrication on this early model is grease.

  Also does anyone in Oz know of a source for 9/16" square steel bar. The early R&V's had all square head bolts and will have to make all new ones, NO they are not set screws etc etc etc, we have been there. These bolt are NO longer available, will post that info to my web site tonight.

  Regards
  Peter, Oz


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