i have a 1985 500SEL with 204,000mi. al lot has been done to it
because i love this car and want to keep it for a while. my last job
was to replace the timing chain with new guides and and to do a valve
job. i have a professional mechanic who only works with mercedes to
hepl me and he does.
after replacing the the timing chain, when we started the car, it was
shaking soooo bad. when we looked at the econo guage, it is obvious
that it is a vacuum leakit was arounf 3/4 away from its normal
position while idling. could not figure out the problem. this car
has all new vacuum lines with switches.
with this in mind, we also did a valvejob (sent it to a machine shop)
hoping everything is done properly. after replacing new gudes, seals,
rocker arms, headgaskets, intake was sent out to clean, new intake
gaskets, intake plenum gaskets, used air meter, new fuel distributer
o ring, all new air hoses and fuel injector seals and holders, new
throttle body switch.....WHEN THE CAR STARTED, SHE IS EVEN WORSE.
CANT UNDERSTAND WHY. ECONO GUAGE IS NOW AT 1/2 POINT WHEN ENGINE IS
please help. what are we missing here? has anyone else had the same
problem? could this be due to bad fuel pressure regulators? my
mechanic said he has to plug it in to a scope to further understand
thank you in advance