Quote:
Originally Posted by cfh
A thread about setting the IP in 615/616 engines says to line up the groove on the IP 2 teeth before top dead center and to have the crank timing set at 45 degrees BTDC. I tried that on my car and it worked. I believe my engine is from ‘83 - so won’t take the locking pin - and every time I tried to install the IP at 24 degrees and right on the notch (rather than 2 teeth off) it would always skip. I think 45 degrees and two teeth before the notch takes that skip into account and according to that thread, it was the method specified in the FSM for those engines. That thread is here: W115/OM616 Injection Pump Installation and Timing How To. |
I briefly looked at the thread and don't know why the author deviated from the factory method.
Before you remove the Fuel Injection Pump you look down at the degree pointer and turn the engine in the direction of normal rotation and line up on 24 degrees (for most applications) before top dead center on the compression stroke.
You will know if you are on the compression stroke by looking at the Camshaft lobes of #1 in which the tips of the lobs will point upwards in a "V" shape.
You remove the Fuel injection Pump and leave the Engine alone no rotation of the engine.
When it comes time to put the Fuel Injection Pump back on you look at the drive end of the fuel injection pump and if the bearing cap is marked normally you line up the flat area (2 splines missing) with the mark and carefully stick the fuel injection pump in with the studs in the middle of the Kidney slots on the Fuel Injection pump.
If the bearing cap is wrongly marked you would line up the flat spot with the mark and turn the drive shaft of the pump counter clockwise 3 teeth and line up that third tooth with the line on the bearing cap. If you look close you can see that in the diagram in my other post of the wrongly marked bearing camp.
And carefully stick the fuel injection pump in with the studs in the middle of the Kidney slots on the Fuel Injection pump.