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Having recently started refreshing my Suzuki gsxr600 engine, using a bore gauge I’m happy with all my clearances big end/main (around 0.025mm avg and in spec) but with a final check using plastigauge they all come back at over 0.040mm, around 0.012 over the loose end of spec. Big ends are also now over spec. I also can’t get larger bearings so I feel stuck. How much can you trust plastigauge? Iknow a few experienced builders who use it no end but with so little experience can’t decide on my own. I understand that it’s a tool to use but and measuring tools surly trump a strip of wax but I wondered what people’s thoughts are on this or where my large difference in measured has come from. Thanks
I don't use plastic gauge at all, micrometer only. The reason being is i know a few cases when it showed 0.023 mm clearance but in fact it was much bigger.
