The motor on this car had not been looked after that well by the previous owner. A costly repair was necessary.
The timing chain needed replacing as well as the timing chain guides and tensioner.
The front crankshaft seal also needed replacing.
Camshaft feeder pipes were replaced.
Adjusted tappets to spec. These had never been adjusted and adjuster threads were seized.
Replaced vacuum advance.
Replaced water pump assembly.
Air pressure sensor replaced.
I'm currently replacing door and window rubbers as these have perished with age.
I also replaced the carpet with factory original material and had the front seats re-cushioned.
Once it was fixed it ran like a dream. These are lovely cars made for cruising, preferably at high speed!
It still has a few niggles which are expected from a 30 year old car.
I recently bought a 450SLC with 103,000 miles and am enjoying it immensely. Here are the issues I've confronted:
-- Loud muffler: $7 in muffler bandage and muffler cement solved it!
-- Dashboard lights wouldn't come on: fixed by cleaning a fuse (fuses are notorious with the 107's, due to incompatible metals used in fuse system.
--High idle (about 1500 rpm) : Fixed by chasing down loose or corroded vacuum hoses (another MAJOR source of trouble with the D-Jetronic engines, which rely on manifold pressure to determine fuel requirements). Adjusted idle screw a few turns until 800 rpm reached. Total cost $3 for a bad hose going to manifold pressure sensor.
--Engines runs a bit rough or misses, especially when cold: Replacing ignition points and condenser helped tremendously; adding a bottole of Chevron techron additive to tank seems to have cured problem!
Have gone 1,400 miles and no measurable oil usage. A good sign!
Has anyone heard that replacing and upgrading the electronic fuel system is a must? I am told the 73 SLC had a complicated fuel system that should be upgraded to the 80"s version. Does anyone have any input or experience with this?
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