Contour Enthusiasts Group Archives Forums General Troubleshooting Noises coming form the rear valve cover the end wh

I just put the DMD pulley on my car tonight and I started the engine up and I noticed a rhythmic noise coming from the back valve cover the side with the timing chains. The noise may have been previously and not heard.

A little back ground on my tour I had it for a year now no problems till this, it has 76,000 miles on it. I have done some mods but other than a water pump and the DMD pulley nothing to the motor, but I have SVT/ ST200 UIM/LIM, cold air intake, with a BAT y pipe in the wings.

So any help with my noise would be much appreciated.

97_contour _sport

T-red tour sport
DMD pulley
Ford 9mm wires
SVT motor mount
Cougar big brakes
21mm BAT bar (rear)
Added stock flat wing
SS brake lines (front)
Metal impeller water pump
ST200 badges and floor mats
ES bushings in motor mount and sway bars

SOON SOON SOON SOON SOON
SVT/ST200 UIM/LIM
Cold air intake
Air inlet pipe
BAT Y-pipe

Check out the 'DMD' posts with the search facility. There are many.
It could be the harmonic balancing is off. Also could be a slight problem the hydraulic tensioner and chain looser than normal.