06-07-2006, 09:49 PM
Well, I had posted about this before, but had no time to tear down to where the noise was.
Problem: was getting a very loud tapping noise from under the valve cover at 2.5k - 4.5-5k rpm when there was no load on the engine (ie. holding steady at that rpm on a straightaway or in neutral), but at WOT no noise, and when the gas is released, no noise.
Also - was having a small vac leak somewhere (was getting 16-17.5 at idle with a ranger roller cam), and was having veryvery delayed boost (15psi @ 4k rpm+).
I get to go back and play in the sand in Iraq for another year, but I have the next week to myself, so I went ahead and took off the valve cover, and I can't seem to find anything out of order so far.
All the rollers/sliders are all on track with no cracks or visible damage. I can't seem to see anything out of place, and I really dont want to take the cam out if I don't have to (nightmares from my first attempt to put it back in). But if thats the next step, then I just need to know some possible things to be looking for, maybe valves?
Thanks in advance -
Kramer
Problem: was getting a very loud tapping noise from under the valve cover at 2.5k - 4.5-5k rpm when there was no load on the engine (ie. holding steady at that rpm on a straightaway or in neutral), but at WOT no noise, and when the gas is released, no noise.
Also - was having a small vac leak somewhere (was getting 16-17.5 at idle with a ranger roller cam), and was having veryvery delayed boost (15psi @ 4k rpm+).
I get to go back and play in the sand in Iraq for another year, but I have the next week to myself, so I went ahead and took off the valve cover, and I can't seem to find anything out of order so far.
All the rollers/sliders are all on track with no cracks or visible damage. I can't seem to see anything out of place, and I really dont want to take the cam out if I don't have to (nightmares from my first attempt to put it back in). But if thats the next step, then I just need to know some possible things to be looking for, maybe valves?
Thanks in advance -
Kramer