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Racing,
Upon further review, I think this early model (it is a 1985 190E 2.3-16 European model) has no guide rail in this position. All the other stuff that was ground off by the chain had obvious grinding marks on it. In this case the part I suspected last night might be a ground off fastener that held the tensioner bracket (pc 33 in the attached photo) it seems this is a pressed in plug. The surface finish is circular, like it was cut off in a lathe or some other machine tool, not by a chain grinding across and then through it at an angle.
If you look at the photo, the bracket, pc. 33, has two fastening locations, or seems to. There is no sign of any kind of fastener location, either a hole or a pin, for the second fastener for pc. 33 (by second I mean the one up and to the left, the "plug" with the circular finish marks I noted is just at or slightly above the "idler sprocket" labeled pc. 18b).
In addition there was no sign of the bracket in the oil pan or in the strainer.
So, my question is, do all of these engines have a guide rail (pc. 32) and bracket (pc. 33) just above the pc. 18b sprocket?
Thanks, Jim
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Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles
Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)
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