Last Lemming

I just want some piece of mind. Can someone tell me if it sounds normal? I just changed my belts with new pulleys. Ive got about 15 miles on the car with the new belts. The video below shows the sound after car is fully warmed up. I used the Arnnworx tool and I had my numbers dead on from what they suggest.

black944 turbo

Sounds a touch tight. Mine does sound very similar.

Last Lemming

Do you think it will loosen up or do I need to strip it down again and loosen it a touch? It didn't seem too tight to me. I could easily twist it to 90 degrees. And I set it to .1 on the arrnworx tool.

black944 turbo

It is hard to tell from the video, but it would most likely be ok until the first tension at 1500 miles.

Last Lemming

ok, I aside from the belt/roller noise, the tap/ticking noise - Normal? Not normal?

I was listening to other 944 videos of engines and I didn't seem to hear that sound. This head had a rebuild 1500 miles or so. PO told me that the mechanic said the lifters looked good. New rod bearings were installed as well, and "coated" <-- not 100% sure with what. Also the PO has an oil that is a lighter oil than 20/50. Cant remember what weight off the top of my head, I'll have to look tonight.

I cant tell if its just typical valve train noise or injector noise or something more ominous.

jss

all lifters "look ok" even if not good.

but I wonder if your noise is exhaust header leaking not the cyn head.

Last Lemming

I'll certainly give that a look.

Last Lemming

From what I can tell it is the injectors. I put a wood stick up to the cam housing and I got the same general sound across the entire top of the housing and the top old the large Allen head bolts - a soft "twirling" sound. From the cam and lifters. The injectors on the other hand were right in time with the ticking that you can hear in the video.