Changing oil pump and timing chain
#1
Changing oil pump and timing chain
I am currently doing a head and camshaft change on an 04 GTO. The car only has 30k miles on it, so I was wondering if my stock oil pump and timing chain will work just fine. I have the TSP224 camshaft and PRC 5.3 Stage 2.5 heads. On a low mileage vehicle like mines, will my stock oil pump and timing chain be ok?
#2
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You will get advise from both sides of the coin on this one . With that being said ... seeing that your motor has only 30,000 miles and it's a 2004 which had no issues with the oil pumps like the older ls1 had , I would not hesitate to reuse them, at least the oil pump anyway . . It probably wouldn't hurt to buy a new ls2 chain seeing they are only like $25 from SDPC . .
#4
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While your in there, might as well replace every part that has a possibility of wearing. It never ends.
If $ are no object, might as well buy a new ZR1.
I am doing a cam swap next month on a 40k engine. It will get a new timing chain, but I'm going to roll the dice on re-using the oil pump. I gotta draw the line somewhere.
If $ are no object, might as well buy a new ZR1.
I am doing a cam swap next month on a 40k engine. It will get a new timing chain, but I'm going to roll the dice on re-using the oil pump. I gotta draw the line somewhere.
#7
How difficult is it to change the oil pump and timing chain? I was told that it is a pain to do them because the oil pan has to be taken off. Does the oil pan have to be taken off, or does it have to be dropped?
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dont know about the gtos but with mine i had to loosen all the bolts for the oil pan to let the front drop about an inch. i chased an oil pan leak for the next 6 months until finally pulling the k member and pan completely. but mine had 100k and i think yours will prolly be fine to reseal itself. i would trust the oil pump but i would prolly swap chain just for piece of mind.
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You have to drop the pan down as far as the k member will let it if you plan on changing the timing chain because you have to remove the oil pump to replace the timing chain . As long as you are carefull not to damage the pan gasket you should not have any problems with leaks . Look on LS1howto .com , there is a lot of good reading and pictures there to help guide you .