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FJR Motorcycle Forums
Technical & Mechanical Problems
My Valve Check/CCT replacement Moral Support Thread
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<blockquote data-quote="hppants" data-source="post: 1171698" data-attributes="member: 27852"><p>For the more experienced mechanics, please allow a relatively dumb question:</p><p></p><p>I bought a set of "go no-go" feeler gages. The package says the each gage has the end of it ground 0.002" less then the thickness of the gage.</p><p></p><p>So for the Exhaust side, the spec is 0.007" - 0.010". I chose the gage that says 0.007" - 0.009", which I'm interpreting as the ground end of the gage is 0.007" (my minimum thickness) and the unground side is 0.009". My McMaster vernier caliper (not micrometer) at least agrees with me. For some of the exhaust valves, the 0.009" part will go (albeit a little tight). For 2 of the exhaust valves (the ones that I suspected needed re-shimming from my data sheet on the last time I did this), the 0.007" ground part goes, but the 0.009" part will not. When I pull the gage out, I have a film of oil on the ground part, which leads me to believe that that particular valve will "go" on 0.007" (with a little film of oil to boot), meaning it's right on the edge, but still good.</p><p></p><p>All on the intake side will "go" on 0.006" nicely, and will slide on the 0.008" part with a little oil to boot.</p><p></p><p>So.... I think I am good, yes?</p><p></p><p>I'll eat a sandwitch before starting to button her back up.</p></blockquote><p></p>
[QUOTE="hppants, post: 1171698, member: 27852"] For the more experienced mechanics, please allow a relatively dumb question: I bought a set of "go no-go" feeler gages. The package says the each gage has the end of it ground 0.002" less then the thickness of the gage. So for the Exhaust side, the spec is 0.007" - 0.010". I chose the gage that says 0.007" - 0.009", which I'm interpreting as the ground end of the gage is 0.007" (my minimum thickness) and the unground side is 0.009". My McMaster vernier caliper (not micrometer) at least agrees with me. For some of the exhaust valves, the 0.009" part will go (albeit a little tight). For 2 of the exhaust valves (the ones that I suspected needed re-shimming from my data sheet on the last time I did this), the 0.007" ground part goes, but the 0.009" part will not. When I pull the gage out, I have a film of oil on the ground part, which leads me to believe that that particular valve will "go" on 0.007" (with a little film of oil to boot), meaning it's right on the edge, but still good. All on the intake side will "go" on 0.006" nicely, and will slide on the 0.008" part with a little oil to boot. So.... I think I am good, yes? I'll eat a sandwitch before starting to button her back up. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
My Valve Check/CCT replacement Moral Support Thread
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