Triumph Pistons Pair +040 /+1.016 mm 1972- 747 cc TR7R. T140 High Compr. NOSDate of Manufacture ca. 1974Powermax1972 onwards 747 ccOHV Tiger 750 TR7RBeonneville 750 T140 High Compression 10.5;1Also suitable f. 724 cc 75 mm bore Engines of bores to 75.974 mm and standard size Piston fittedRedommended max overisze is +040" 1.016 mm
This Pair of conrods is to replace the white metal bearing conrod, which is no longer available, and to give the possibility to grind the crankshaft to -010, -020,-030 or -040 thou (-040 = 1 mm under standard)
Big end bearing type Steel backed white metal Big end journal dia. STD 1.4375-1.4380 in. (36.513/36.525 mm)
Bearing side clearance .013/.017 in. (.3302/.4018 mm)
Bearing diametral clearance .0005/.0020 in. min. (.0127/.0508 mm)
Triumph Conrod with Small Bearing Crank 500cc pre unit / Pair 5T, TR5, T100 1937-51
use Big End Shell No.:
70-3706.std
70-3706/10
70-3706/20
70-3706/30
70-3706/40