2001 Buick Century Custom Timing Chain cover gasket
This is my first post so please bear with me.
My 01 Century "the BU" sprung a leak in the cooling system. Being the proactive guy I am I went ahead and replaced the intake manifold gasket, water pump, thermostat, spark plugs. Got it all put back together, no vacuum leaks. However, still leaking coolant from passenger rear motor. Determined timing chain cover gasket is culprit. So i bought a OEM gasket set from auto zone. So far I have alternator, power steering, and water pump off and out of the way.
The question is: A-Do I have to remove the belt tensioner to remove the timing chain cover. B- Do I have to remove the lower pulley and if so does it require a puller? I am aware that I need to mark the lower pulley to the cover so I dont screw the timing up. C- I have heard that a "non-hardening permatex silicone sealer works best, what exactly needs sealed after the new gasket goes on?
Many thanks to anyone who can provide some wisdom!