[Spridgets] rocker clearance

Michael MacLean rrengineer.mike at att.net
Sat Oct 31 14:49:53 MDT 2015


How about when you have 1.5 rocker arms?  Drove the Bugeye around yesterday.  Runs great, still blue smoke on acceleration on a recent rebuild.  At leat 1000 miles since rebuild.  I'm afraid the rings never seated properly.  Not sure of the cylinder wall surface during the rebuild as I did not so that part of it.
Mike MacLean
 


     On Saturday, October 31, 2015 1:26 PM, Rick Fisk via Spridgets <spridgets at autox.team.net> wrote:
   
 

 The 0.029 in. spec is a whole different thing used when you are assembling the engine.  If your engine is together and you just want to set the valve clearance it should be 0.012 in. set cold.

Sent from my keyboard
On Oct 31, 2015, at 4:06 PM, Michael Rowe via Spridgets <spridgets at autox.team.net> wrote:



New 1275 engine.Haynes says "Rocker clearance, timing only = 0.029 in.My mechanic/tutor says, "that is twice what it should be."Bentley says:Rocker clearance: Running (Standard) = 0.012 in. cold                                Running (competition work) = 0.015 in.                                timing        = 0.029 in.Online sites agree on  = .012 in. cold. So what is the 0.029 in. for? Michael Rowe
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