MAHLE Tech Video: How-To Properly Measure Piston To Bore Clearance


MAHLE Tech Video: How-To Properly Measure Piston To Bore Clearance

This is a great how-to video and it is an illustration of the steps that dedicated engine builders take when assembling engines. It is not just about bolting stuff together and praying that it works, it is about putting in the leg work to make sure that things will not only fit right but also work to their maximum potential. This video that shows how to Measure Piston To Bore Clearance is invaluable to anyone building an engine right now or getting ready to assemble one. Why? Proper piston to bore clearance is essential to performance an engine longevity.

You don’t want too much room in the bore or the piston will rock and slap with consequences that you don’t need to be a rocket scientist to figure out. On the other side, a lack of clearance you won’t have the oil film you need on the bore and you’ll ultimately have a piston that tries to seize itself in the bore. Things will scuff and ultimately material will be ripped from the piston and cylinder walls leading to your tears, an empty wallet, and a busted hot rod.

Watch this video an the next time you are sticking an engine together remember the steps and the process used here. It is not rocket science but it could be vitally important to both your mental and financial health the next time you build a motor. This is truly great stuff!

Press play to see this video on how to properly measure piston to bore clearance –


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3 thoughts on “MAHLE Tech Video: How-To Properly Measure Piston To Bore Clearance

  1. Hemi Joel

    That’s a great video, but there is a slightly better way. Don’t set the dial bore gauge to the theoretical bore size like Mahle Guy does. Instead, after you mic the piston, lock the micrometer and set the dial bore gauge to zero using the locked in micrometer. This sets the DBG to the piston size. Then when you swing the DBG thru the bore, it is reading the exact clearance right on the dial, no math needed.

  2. Hemi Joel

    That’s a great video, but there is a slightly better way. Don’t set the dial bore gauge to the theoretical bore size like Mahle Guy does. Instead, after you mic the piston, lock the micrometer and set the dial bore gauge to zero using the locked in micrometer. This sets the DBG to the piston size. Then when you swing the DBG thru the bore, it is reading the exact clearance right on the dial, no math needed.

  3. Essay Inc - Essay Help

    This technique for measuring the Bore clearance is a very unique and useful strategy. It not only tales in to account one of the best strategies to generate the right results, it also helps in mitigating any errors that are likely to be encountered.

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