Help identifying m102 engine
 

Hi Everyone,

My sister recently purchased an 86 190e with 77,000 miles from my aunt. It possibly had an engine replacement so I am not sure if the timing is adjustable or not. From other posts it seems that 84-86 model 2.3L engines can be adjustted by turning the distributor. I have the engine manual, but it looks different than the engine in the car. The engine in the car now has a single serpentine belt. The engine number is 102985-12-027203.

If it is adjustable, where do you aim the timing light...I can't find a line of sight to any marks.

Thanks,
Nolan

The timing is adjustable on that engine, however to see the pointer you must move some wires.
The pointer is part of the waterpump & the timing mark is on the crank damper.