2.8L timing cover (Page 1/1)
Cunnive DEC 21, 08:59 PM

I got a new timing cover and when comparing it to the old timing cover, I noticed a spot that doesn't have a screw hole.

I am wondering if this is something I need to put in myself? If so, does anyone know or recommend what I should do here?

https://photos.app.goo.gl/oaKQYgwYSYSqE1VF6

Thank you!
pmbrunelle DEC 21, 09:11 PM
Rotate engine to TDC compression #1

Install timing chain cover on engine

Using the one screw hole that is present, attach your graduated timing scale to the timing chain cover. I suggest a normal flanged-head bolt, and not the tamper-proof rubbish...

Position the scale such that its 0° mark is aligned with the notch on the harmonic balancer.

With the scale in a suitable place (hopefully with its screw hole over the aluminium boss), punch the hole position onto the timing chain cover.

Remove timing scale

Drill for M6 tap (I think that's the size). Study the timing chain cover beforehand to know how deep you can drill.

Countersink to 6 mm dia (slightly larger than thread OD)

Taper tap the threads

Bottom tap the threads

Clean holes, reinstall scale aligned with harmonic balancer. Use blue Loctite on the bolt threads.
fierogt28 DEC 22, 12:11 PM
Just to remind you, this is the old design 85-86V6 fiero timing cover.

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fierogt28

88 GT, Loaded, 5-speed.
88 GT, 5-speed. Beechwood interior, All original.