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1 x Dual gauged Leak Detection Unit(Suitable for use on any petrol engine with 10mm,12mm or 14mm spark plugs). One revolution of the crankshaft (180°) is used to test one cylinder. If you hear a leak at the muffler mouth of the exhaust pipe, the exhaust valve is not sealed.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.