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Old 08-19-2002, 11:37 PM
Dave Bunker's Avatar
Join Date: Aug 2002
Location: Elk Grove, CA. 95758
Posts: 90
Rocker Arm Asembly

I ran into an indy MB shop today. The svc mgr told me that right around 180k miles the metal alloy starts wearing off the surface of the rocker arm causing the cam lobs to wear down. He says it's common in 420's. He says a cam job is $2000 and replacing the rockers is around $500. I wanted some feedback on this, before I look any further. Does anyone have any opinions on this.
Dave Bunker
1987 420SEL, 180k strong Blu & Grey
2004 Road King Custom
Sacramento, CA
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Old 08-20-2002, 02:42 AM
amg280's Avatar
Registered User
Join Date: Apr 2002
Location: NY
Posts: 530
Sounds kinda expensive if you ask me. I had my cams in my 86 420SEL replaced at 80K and the dealer only charged me I believe well under $1000. The rockers sounds ok, they can be pricey to replace all them. If its not that loud, I would live with it.
93 300D 2.5 Turbo, Black/Palomino 273K
09 E350 Black/Black 41K
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