Question? 3.4L D.O.H.C

[92_Lumina_Z34]

When changing the timing belt do u need camshaft holding tools?
Also i am removing the rear head to replace the o-ring on the oil pump drive,
any advice or precautions when doing this would be helpful.
(using Haynes manual)

[blazes9395]

Yes, you need camshaft timing tools, or you'll never get it timed properly and will have to take it in to do it, which costs a few dollars too.

[92_Lumina_Z34]

ok thanks