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The timing chain cover torque specs for a 2003 Pontiac Grand Am with the 3400 engine are 11 Nm (8 lb ft) for the M8 bolts and 25 Nm (18 lb ft) for the M10 bolts.
Found info for 07 not 08. I don't know sub-division model? It said 105 inch lbs. Note, that is not ft lbs. Use an inch lb torque wrench.
I did look in partsbook, the brand I looked at for water pump covered 07--011, same pump.
I'm not sure torque specs would be the same on 07 and 08? Just my opinion.
take the engine cowl off you do not need to remove the rad ,undo the viscous fan reverse thread on this -- the remove the pump ,the torque setting i would have to look up in the haynes book but i would say about 12/15 lbs but just tighten up with a 3/8 rachet and hold about halfway along the hangle and use two fingers to pull it and that should be the right torque
if you are talking about a 2.4 liter engine (4 cylinder) then this is a hard job for a novice. on a scale of 1 to 10 with 10 beiing hardest , i would give it a 8.5. first take off the exhaust. second take off the exhaust manifold.. loosen backside of water pump mount. i think there are 5 bolts hodling it to the engine ( do not try to pry pump out of back of timing chain hole). here's where it starts getting tricky. unbolt motor mounts. take off serpentine belt. take large crow bar and push engine up and put 2x4 block under engine to hold in place. take off harmonic balancer (need 300 lbs torque, buy pneumatic torque gun at harbor freight for about 40 bucks). take off timing chain cover plate. take off timing chain tensioner. lift timing chain up over water pump sprocket and remove water pump. reverse to re-assemble. i can do this all in about 4 hours. by the way change out thermostat why you are at it. make sure you do not put thermostat back in upside down. this procedure is for the 2.4 liter engine. a great engine made by screwed up pontiac engineers during a beer bash. do not attempt unless you have the time, tools and patience.
Pull the alternator brackets and front engine brackets off until you get to the water pump. You will also need to remove the fan shroud and then the fan. Remove the water pump and then you will see an aluminum cover and that will be your timing cover. remove the cover and clean all the gasket off the engine and the cover. use a razor blade, and make sure there in no oil or grease on the parts where the gasket lies. Put your gasket on, bolt the cover back on with the new gasket and repeat the teardown process in reverse.
Hi brian_cherve hope these values will help you out my friend Trans case attachment nuts = 35 Nm (26 ft lbs) Propeller shafts attachment bolts = 19 Nm (170 in lbs) Rear crossmember bolts = 41 Nm (30 ft lbs) good luck and take care :)
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