Edwin Posted October 8, 2010 Report Share Posted October 8, 2010 Hi All, Yesterday I removed the pistons from the 6 to examine the condition of the engine (burning a lot of oil). My big TR6 book states the following about the diameter of the pistons (grade B, as stamped on the block): * top diameter : 2,9369 - 2,9374 * bottom diameter: 2,9386 - 2,9391 Mine are the following: * top diameter : 2,925 * bottom diameter: 2,939 According to the book the bottom is correct... the top seems a tiny bit too small. I think they are Hepolite pistons (an 'H' with 'U20' or 'U21' stamped on top). Are my pistons fine or do the measurements suggest too much wear at the top? Cheers, Edwin Quote Link to post Share on other sites
rpurchon Posted October 8, 2010 Report Share Posted October 8, 2010 Hi All, Yesterday I removed the pistons from the 6 to examine the condition of the engine (burning a lot of oil). My big TR6 book states the following about the diameter of the pistons (grade B, as stamped on the block): * top diameter : 2,9369 - 2,9374 * bottom diameter: 2,9386 - 2,9391 Mine are the following: * top diameter : 2,925 * bottom diameter: 2,939 According to the book the bottom is correct... the top seems a tiny bit too small. I think they are Hepolite pistons (an 'H' with 'U20' or 'U21' stamped on top). Are my pistons fine or do the measurements suggest too much wear at the top? Cheers, Edwin i know its not the right section.but i have a set of brand new AE std pistons. get one of them honing jobs as on other post and fit these .unless your going down the rebore route. richard Quote Link to post Share on other sites
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