Gozling2 Posted June 16, 2009 Share Posted June 16, 2009 HI Guys, Discovery 1991 200TDI Wondered if any one can advice me on this issue, I've removed the Pistons and cleaned the tops and they are STD Pistons with no ERR 1387 and (TX) stamped on the crowns, have these pistons been superseded by ERR 1390?, or am I whistling Dixie from a certain wrong Orifice, if any one could help with the correct no I'd be most grateful, thanks in advance. Goz Quote Link to comment Share on other sites More sharing options...
Les Henson Posted June 16, 2009 Share Posted June 16, 2009 Std is either 'x' ERR1390 or 'y' ERR1391 Les. Quote Link to comment Share on other sites More sharing options...
cipx2 Posted June 16, 2009 Share Posted June 16, 2009 The ERR1387 were only factory fitted to new blocks, slightly oversize due to production tolerance. TX = Tolerance grade X The difference between the part #s Les gave you: http://forums.lr4x4.com/index.php?showtopic=36920 Quote Link to comment Share on other sites More sharing options...
Gozling2 Posted June 19, 2009 Author Share Posted June 19, 2009 Many thanks to you both, most helpful, cleared up a bit of confusion on my part, have ordered a full set of pistons so hopefully should be rebuilding her soon. Goz Quote Link to comment Share on other sites More sharing options...
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