Replacing broken secondary chain on 94 lincoln mark VIII

I'm stumped.

I'm surprised there's anything supposed to be there. 🤷‍♂️

Maybe it's some kind of noise damper? Perhaps our resident NVH specialist @billcu would know?
 
That's Ceramic fiber material for heat shielding. Same stuff that is in those plastic baggies glued to the underside of the carpet just above the catalytic converter areas of the floor. It was probably acting as a wick to burn the oil.
 
I am as surprised as you may be; yes still at it. It definately was acting like a wick. Well, guys. After getting heads back a second time, installing everything back on ( it took me forever this time) but did it. Here is what the latest is. Got him starting, letting him idle, shut off, check coolant etc etc. Last night I decided hes going on the road. Well, the moment i put him in reverse the engine starts pinging,. Got pisst off and still pisst off as the pinging is not going away. Today i removed passanger side valve cover since noise seems to be coming from there and noticed #1 cylinder intake rocker arm has slight play. It shouldnt, replace that lifter. A little better but pinging too much for comfort. Any idea what the hell would putting it reverse cause what I mentioned? thanks in advance
 
94JAMarkVIII said:
Any idea what the hell would putting it reverse cause what I mentioned?
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Not at all.

Does it sound different cold versus normal operating temperature? Does it change under load (in neutral versus in gear or in gear and throttling against the brakes)? Can you zero in on the location with an engine stethoscope?
 
The sound remain the same no matter the temperature, under load and when switching gears or neutral. Pedal when braking, same sound also. I'd like to say sound is from passenger side head but I'll invest in a stethoscope. Is it normal to hear a very noticable hiss from throttle body with intake hose off? I put my finger over the hole at back of throttle body a few seconds and he'll shut off. ??
 
94JAMarkVIII said:
The sound remain the same no matter the temperature, under load and when switching gears or neutral. Pedal when braking, same sound also.
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That appears to be mechanical then. Perhaps it could be an oiling issue? Does it vary by rpm?

I'm obviously grasping at straws... it could be dozens of things.

But if you could isolate it somehow to one side or the other I would remove the valve cover on that side and run it some while observing the valve train and oiling. You can limit some of the mess from the oil splash with plastic sheeting over the inner fender and firewall.

Perhaps someone else can chime in on the throttle body, but I recall there being a plug in the backside of the throttle body that has a occasional propensity to fall out.
 
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Hey Folks..still at it. Anyone know where I could get an OEM or The equivalent to the passenger side 02 sensor? Mines broken and according to dealership, those are now obsolete. Thanks in advance
 
94JAMarkVIII said:
Hey Folks..still at it. Anyone know where I could get an OEM or The equivalent to the passenger side 02 sensor? Mines broken and according to dealership, those are now obsolete. Thanks in advance
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Rockauto has them.
 
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