threaded plug in 3.2 flywheel

[inaminit]

I have a spare 3.2 flywheel for my 86 engine, but it has no threaded plug to trigger the motronic sensor. the part, 930 102 221 00, is $65 to 75-yikes!!! Is this just an ordinary set screw, or is something else? Thanks in advance for your discussion.

[john walker's workshop]

Bought a new one years ago with a stainless screw in it that I replaced with a steel allen head bolt and it worked fine. Don't remember all the details, but i just used one that matched the height, or maybe ground one to match.

[tholyoak]

It is just a metric grub screw. I think the size is M6x1. I have an old flywheel on the shelf and can double check if you like. Just make sure to loctite it into position.

Todd

[wazzz]

Make sure it is ferrous and not stainless. Stainless steel is non-magnetic and may weaken the reference pulse amplitude supplied by the sensor.

[inaminit]

thanks guys. I cannot believe the Porsche tax on that part!
Todd-could you check in the thread size for that?

[tholyoak]

Confirmed it is M6x1.0., ~12 mm long, installed protruding height is 5mm

-Todd