> archer75--- wrote: > My '83 300D (same drivetrain as yours), which also doesn't get > driven much, does the same thing. It sort of "hammers" and > shakes the engine at idle in any kind of weather.
> I vaguely recall that carbon buildup isq supposed to be the > cause and the cure is to lug the engine up a long grade with the > engine temp topping out. Not lug! Lugging is high load, low RPM. That is not good for any engine. What you want to clean out the engine is high cylinder temperatures. So high load, high rpm, full fuel. There are a couple hills around here that are big enough and long enough and I try to "treat" the engine every time I climb them. The turbos need a bigger hill to do it well. Just high RPM isn't enough, so running the engine against the governor in a low gear isn't effective. It is the heat caused by max power and high RPM that clears junk out. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
