Thread: Cylinder head oilway question?
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Old Feb 19, 2008 | 08:10 PM
  #3  
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dooge
dooge
 
Joined: Jan 2008
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From: Midlands
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Try a 7/32 AF allen key its about 5.52 mm
AF is a common size in taper plugs
ie BSPT / NPT ect
hope this helps

dooge
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