pke906 Posted September 15, 2005 Share Posted September 15, 2005 Has anyone tried the O-ring cure for 98 2.5 heads? If so who performed the machine work? Thanks pke906 Link to comment Share on other sites More sharing options...
blitz Posted September 15, 2005 Share Posted September 15, 2005 I don't know anyone that's o-ringed Subie heads. It would seem like a challenge on an open-deck block no? A buddy of mine that builds and races miniature 2-stroke outboard hydroplanes mentioned that it's standard practice on "gasket-eating" race motors to mill the block deck about .001-.002 lower than the bore-liner to get a little more crimp at the pressure edge. He suggested it as a potential solution for the Subaru head-gasket problem. Still, it sounds like a pricey venture for anyone that doesn't have access to a machine shop. Link to comment Share on other sites More sharing options...
pke906 Posted November 8, 2005 Author Share Posted November 8, 2005 1500 mi. on 98 2.5, heads milled .004 , valve grind, copper o-rings installed around combustion chamber, oem gaskets, new head bolts, torque to factory spec. machine work by Watson Ruppel performance Sarahsville Oh. 740-838-6405 work by owner runs great so far, will keep you posted pke 906 Link to comment Share on other sites More sharing options...
outback_97 Posted November 8, 2005 Share Posted November 8, 2005 I remember reading about someone doing this before, here it is: Taken from: http://wac.addr.com/auto/obs/headgasket/headgasket.html Steve Link to comment Share on other sites More sharing options...
idosubaru Posted November 9, 2005 Share Posted November 9, 2005 overkill for standard vehicle applications as the new headgasket design solves the headgasket problem. some nifty work though, and interesting idea about milling the block surface. very cool idea. Link to comment Share on other sites More sharing options...
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