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  #1  
Old 11-30-2001, 01:38 PM
Bax Bax is offline
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Join Date: Mar 2001
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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
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T Bax
1998 Vath V47 (E430T) + 18" rims
2003 Range Rover 4.4 Vogue
1995 Porsche 993 twin turbo 522ps/757nm DIN
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  #2  
Old 11-30-2001, 02:15 PM
LarryBible
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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,
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  #3  
Old 12-02-2001, 10:52 PM
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Join Date: Jul 2000
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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.
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Old 12-03-2001, 01:23 AM
roas
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I've used Marvel in the past on the recommendation of my Father. Is it safe in a V8 Mercedes?
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  #5  
Old 12-03-2001, 07:54 AM
Bax Bax is offline
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Posts: 15
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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T Bax
1998 Vath V47 (E430T) + 18" rims
2003 Range Rover 4.4 Vogue
1995 Porsche 993 twin turbo 522ps/757nm DIN
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