alfi1 Posted September 16, 2003 Report Share Posted September 16, 2003 on lumina 1991 3.1 l ,i want to replace timing chain and the 2 gears (cam and crank) (noisy) (189,000 km) i read in the chilton manuel that i must remove the oil pan my question is: is it possible to do the job without removing the oil pan? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 16, 2003 Report Share Posted September 16, 2003 On all the motors I have worked on, the timing cover has atleast a couple of bolts that also bolt to the oil pan. Robby Quote Link to comment Share on other sites More sharing options...
91GranSport Posted September 16, 2003 Report Share Posted September 16, 2003 That's true. I've rebuilt a couple of 2.8 MPFI and 3.1 MPFI engines, and they have two three two bolts connecting the cover to the oil pan. You must remove the oil pan. On all the motors I have worked on, the timing cover has atleast a couple of bolts that also bolt to the oil pan. Robby Quote Link to comment Share on other sites More sharing options...
alfi1 Posted September 16, 2003 Author Report Share Posted September 16, 2003 That's true. I've rebuilt a couple of 2.8 MPFI and 3.1 MPFI engines, and they have two three two bolts connecting the cover to the oil pan. You must remove the oil pan. thank for the information guys, i appreciated bye Quote Link to comment Share on other sites More sharing options...
alfi1 Posted September 16, 2003 Author Report Share Posted September 16, 2003 That's true. I've rebuilt a couple of 2.8 MPFI and 3.1 MPFI engines, and they have two three two bolts connecting the cover to the oil pan. You must remove the oil pan. thank for the information guys, i appreciated bye ohh i forgot something concerning the first question, the manuel say that i must purge oil and coolant before removing the front cover. i can understand for oil but why the coolant? there is no coolant in that cover... thank to reply Quote Link to comment Share on other sites More sharing options...
The Burning Rom Posted September 16, 2003 Report Share Posted September 16, 2003 Because the water pump is inside the front cover Quote Link to comment Share on other sites More sharing options...
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