Ive done that last year or so. Both hydraulic oil tensioners, both manifold "O-ring" gaskets, oil restrictor (which it already had one).
Reason I was asking is that I just got done replacing the left cassette guide and the jackshaft guide/tensioner (2WD) and Im now getting some upper cassette chain noise still. The left side oil oil tensioner (M0012 kit) is maybe a year or two old like I said. Im guessing it got worn out because of the broken cassette guide (drove it with "minor" rattle for quite a while) and Ive ordered a new one to see if it will put more tension on the guide to quiet the chain down. to make matters worse, Ive replaced the thermostat housing (3rd time btw!) because the damn thing wont seal up around the O-ring. The last one leaked around the seam. What a POS! lol...Other than that its a great engine.
Any ideas why the chain noise may still be present? I didnt replace the chain or the sprocket, just the guide. Everything was torqued properly and the timing is correct so I dont know how I can still be getting chain noise. Its definitely not the rear either as I thought. 5W-30 regular oil like always. Im stumped. I guess I will wait until the new oil tensioner arrives and see if that helps.
