Has anyone any experience with E430 V8's
My new (to me) E430T , 1998 with 93K miles blew a lot of oily smoke out of the exhaust when I first took it past 4500rpm - I thought this was just a culmulation of miles of motorway, low rev driving. On a trip today, I saw more oil colured smoke coming out of the exhaust (in the rear view mirror) I wasn't revving hard, maybe just accelerating up a hill from 75mph to 90 mph in 4th (5 speed auto) anyway, I couldn't get it to smoke under certain load/rev combinations, it just did it when it felt like it. When I got home I washed the car off and the rear hatch and screen had an oily film over it.
Are there any experts out there who can give me a clue as to which bits are likely to be worn ( I checked the oil and its not overfilled) - rings ? valve guides ? etc Thanks for the help |
I really don't think there is anything specific to your particular engine that will help. As in any other engine diagnosis procedure, start with a compression check and go from there. It might take some exploratory surgery after that.
Is the car using a considerable quantity of oil. Have a great day, |
why does it smoke?
Quite possibly your crankcase ventilation plumbing is all crudded up. When you load it, the blow-by increases and with a plugged up vent system, it backs up from the crankcase into the intake 'directly' instead of through the oil/vapor separators in the rocker covers(normal route of exit)
I suggest adding a pint of Marvel Mystery Oil to the crankcase and run it to help clean out the ring grooves. |
I've used Marvel in the past on the recommendation of my Father. Is it safe in a V8 Mercedes? :rolleyes:
|
Crank case ventilation
Kebowers
Thanks for your thoughts, I was thinking along those lines and when I book it into the workshop will send them in that direction. Is it likely that a car so new (1998) albeit with high miles (93K) would get its breathers clogged up ? Thanks |
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