Jezz Posted November 2, 2009 Share Posted November 2, 2009 Does anyone have first hand experience of fitting Ferrea dual valve springs? I'm basically building a head using all Ferrea components, but the valve springs seem a little too 'Snug' for my liking. They almost need forcing in. I've checked the tollerances according to Ferreas website, and they're all bang on. Link to comment Share on other sites More sharing options...
TLicense Posted November 2, 2009 Share Posted November 2, 2009 Yeah they're usually a bit tight to fit over the valve seats. They ping on when you fit the retainers and locks. I'm not sure I would want to try to fit them with the head on though! I imgaine it would be quite a struggle. Link to comment Share on other sites More sharing options...
Jezz Posted November 2, 2009 Author Share Posted November 2, 2009 Cool, cheers Tony. It was almost as if the outer diameter was out of tollerance, but it measures spot on. I guess you dont get supposed 12500rpm by having floppy springs! Link to comment Share on other sites More sharing options...
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