BenzWorld Senior Member
Date registered: Jan 2005
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Debugging a 1975 420 SL
Smoking is easy to isolate in any engine ,but do it the best way.Before you aggree on price get a GOOD mecahnic to do a Leak down test on the engine.NOT a compression test!.A leak down test isa what every mercedes trained mechanic does ,in one simple proceedure the head gasket is tested for leaks in the water jacket,the valves a re tested for burnt or otherwise damaged seats, and the rings are tested for sealing.
A leak on the passenger side can be either the top rocker cover vent hose cracked or the cover seal damaged .Both can be symptoms of worn rings pressurising the sump,try removing the oil filler with the engine idling,any fumes at all indicates worn rings,a blue haze means either you get the car for a rock bottom price or you walk away.
re your trans,It would never ever be a friggen ZF!!![:(!][:(!][:(!]that is the other crowd over in Munich who put that rubbish in their cars!( From someone who has had to fork out for wrecked ZF components in the past)
Mercedes have......Mercedes transmissions.Keep it serviced by someone who knows how and it will last forever.[:)][:)]