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618F1
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Post subject: Re: Big valves on early F1? Posted: Sat Dec 06, 2014 12:41 pm |
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Joined: Thu Oct 14, 2010 11:23 am Posts: 1802
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Not sure what "TT" cams are; are they marked with a P on each? Then they are same as the Montjuich, sold for the early Pantah racers using the same part #. You will not be able to use them unless you can get at a minimum 5.75mm, even 6.0mm, between the valves when they are closed. Overlap when open will be the problem. Not sure where they are now with stock valves (4.5mm?) but do a quick physical/math check before you do this. The 41mm valves are about 2.5mm shorter than the 37mm valves! MikeV
I know many others can chime in on this, with more experience than me.
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teetee2
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Post subject: Re: Big valves on early F1? Posted: Sat Dec 06, 2014 8:37 pm |
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Joined: Sun Oct 17, 2010 2:24 pm Posts: 30 Images: 4
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I'm assuming they are NCR 7 cams as they have a number 7 stamped on the end.
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