Measuring the height of the TDC / Reference Stud / Pin

[KeithU]

Make fun of me if you want, but if I knew what I was doing, how would I measure whether the top dead center / reference sensor stud (pin, whatever) is 5mm above the flywheel with the engine in the car?

Given the limited access, I'm guessing there is a forehead-slappingly easy way that I can't think of. All I can come up with is to cut a 5mm sliver of wooden dowel then drill a hole in the middle and drop in on to see if the top of the stud is flush. But that seems overly complicated.

[944 Ecology]

While it is much easier when the flywheel is not covered by the bell housing, in your case I would use a tire depth gauge. This one is $3 at Advance Auto...

https://shop.advanceautoparts.com/p/victor-tire-tread-depth-gauge-22-5-60174-8/10021750-p?c3ch=PLA&c3nid=10021750-P&adtype=pla&gclid=Cj0KCQjw1q3VBRCFARIsAPHJXrFpivLlrzpff0WvG5fT VjovRe4z_isr-Vfkv62dJaRaswW8NcFIn0saAgRMEALw_wcB&gclsrc=aw.ds

[KeithU]

Brilliant. I (honestly) had no clue. You're still welcome to make fun of me if you want.

That even looks similar to the tool being used in the workshop manual.

If I can account for the distance between the top of the stud and the housing (because the base of that gauge isn't going to fit through the hole) then that will totally work.

Good grief, thank you - I really did just slap myself in the forehead.

[944 Ecology]

You can always modify the base of the tool until it is small enough to fit inside the hole. It's not rocket science, eh, what?

[KeithU]

There is no limit to how simple a task I can mess up.

[KeithU]

Worked perfectly, thank you!