Woodnutz said:
Much props to the one that gets this right. What is the clearance for the main bearing caps on a stock 93 MX6? And what is the clearance on the conecting rod caps on the crankshaft? What do you use to check these clearences? And what is the stock timing set on the same year MX6 (how many degrees before TDC or after TDC)? 100,000 points to whoever gets this right.
Okay, as for the main bearings, there aren't individual main caps per se. Rather, there's a lower-block assembly that gets bolted to the upper block. This lower block holds the 4 main bearing saddles all in one piece. Still, the oil clearance for the main bearing journals is 0.0015-0.0022in (0.037-0.057mm) with a maximum allowed of 0.0025in (0.064mm). The crankshaft should have end play between 0.0032-0.0111in (0.080-0.282mm) with a max of 0.0125in (0.320mm).
Connecting rods should have an oil clearance of 0.0010-0.0016in (0.023-0.043mm) with a max of 0.0032in (0.080mm). Connecting rod side play should be 0.0071-0.0129in (0.178-0.330mm), with a max of 0.0157in (0.40mm)
As for what to use, I'd use Plastigage to check bearing clearances and micrometers to check for taper or out of round. Use a dial guage to check end play and side clearances.
IIRC, stock spark timing on a V6 is 10-degrees BTDC with the TEN pin grounded and idling at 650RPM with no electrical loads active.
[Edited by Mike 94PGT on 02-19-2001 at 06:03 PM]
