1.8 engine timing mark Options

[mcericmc]

There is only one timing mark on my 1.8 fan. It's visible through a notch on the rear side of the fan via the inspection port. Pelican parts info says the mark is TDC. Auto Atlanta says it's 7.5 degrees BTDC in the 914 tech tips 700 book. Can someone please tell me which is correct? I need to make sure the timing and valves are adjusted properly. (IMG:style_emoticons/default/WTF.gif)

[mjrrti]

There should be a notch in your flywheel that can be seen in the opening on the top of your trans bell housing that will be dead on TDC. I always put it there when I work on a new to me 914 and then go under the car on the bottom window and mark it there with 3 center punch dots for exact valve adjustment position also. It is helpful to be able to see the TDC mark and the center punch marks @ 180 from below to stay under the car when adjusting valves. (IMG:style_emoticons/default/biggrin.gif)

[wonkipop]

There should be a notch in your flywheel that can be seen in the opening on the top of your trans bell housing that will be dead on TDC. I always put it there when I work on a new to me 914 and then go under the car on the bottom window and mark it there with 3 center punch dots for exact valve adjustment position also. It is helpful to be able to see the TDC mark and the center punch marks @ 180 from below to stay under the car when adjusting valves. (IMG:style_emoticons/default/biggrin.gif)

correct. there is. even for an L jet. as you suggest i have also marked the flywheel for valve adjustments when i am under the car rather than on top. no real need to refer fan markings while doing valves - which would be a pain in the arse. (IMG:style_emoticons/default/biggrin.gif) and no need to refer to TDC with an L jet doing tuning.

i have a feeling most 914s simply inherited the fan markings from the 411 and the buses.
esp easy to use the fan markings on a bus motor. fully visible. not sure if the L jet 412s got the same fan markings as the L jet 914s. maybe. never seen one. but no need for any other marking on an L jet when it comes to initial base idle tune setting.