In a message dated 9/12/2005 4:21:42 P.M. US Mountain Standard Time, [EMAIL PROTECTED] writes:
The engine does have lots of blow by and is an EGR engine, do all 617's have EGRs? Trampas, My 79 300SD does not have EGR but they started adding it in 1980. Most will recommend that you block the EGR off permanently. A thin metal plate where the EGR valve is mounted works wonders. A functioning EGR WILL clog up the intake manifold and build up carbon around the intake valves. Did you check chain stretch? Your chain could be bad enough to be retarding timing of both valves and fuel injection. The result would be loss of power and smoke! Regards Jim Friesen Phoenix AZ 79 300SD, 261 K miles 98 ML 320, 137 K miles
