Clay - it's getting all new filters and fluids, something I do
whenever I get a car that's new to me. That way I've got a point of
reference for everything. I'll do the differential this weekend and
probably the transmission next weekend.
Bob - it's weird - I have been driving this car with my diesel
technique - foot to the floor, get it up to speed and let off to
maintain. It gets to speed so quickly I've found my self
consistently going well above the speed limit and not realizing it.
I can only think that I've been channeling my old 1979 300TD, which
you had to drive like this if you wanted to get anywhere.
Thanks to everyone for the help and suggestions, especially you diesel folks.
Dan
When I first drove a turbodiesel, the fastest Diesel I had driven was
the escort, roughly similar to a 240D 4 speed. Before I knew it, the
turbodiesel was up to 90 indicated. That was a vw. I was impressed.
The caveat to the "drive it like you stole it" mantra is this: Drive
softly until the oil us up to operating temp. ~15 min. THEN Drive it
like you stole it. Then either let it idle 5 min before you shut it
down or drive softly the last 15 min.
Head cracks are caused mostly by driving it like you stole it with a
cold engine. Oil temp gauges and Exhaust Gas Temp gauges (EGT
Pyrometer) are good to have. Turbos are ruined (cooked) and head
cracks are formed by drive it like you stole it, then shutting off
the engine with high EGT. This operating strategy is good for both
turbo and non-turbo diesel engines. The EGT gets higher in turbo
engines. Higher boost =higher EGT.
Iron head engines are more prone to cracking than the OM60x engines,
but i suspect the water jacket cracks common to the OM603 are caused
by hard driving a cold engine. there can easily be 50% higher EGT
when driving hard than driving soft. Having the engine up to
operating temp before the eyetalyeen tuneup lessens the pressure
differential.
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