Chain tensioner...to swap or not to swap - Pontiac G8 Forum: G8 Forums - G8Board.com
 
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post #1 of 18 (permalink) Old 04-02-2012, 11:43 AM Thread Starter
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Chain tensioner...to swap or not to swap

I have done 1 cam swap, and left the stock one in due to the fear of the oil pick up tube (further confirmed by Daniels engine failure). Are most people swapping this to the ls2 version, or leaving it with the stock one? I am starting my 2nd swap this evening, and am unsure of what to do. Also, would the stock chain need switched after 26k? Thanks for any input.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #2 of 18 (permalink) Old 04-02-2012, 11:47 AM
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I've always subscribed to the school of thought that says if it's a wear item and it's a lot of work to get to it - replace it while you're in the neighborhood...just like a throwout bearing if the trans was dropped...

Really not necessary, no, but perhaps a small piece of mind...of course it's at the risk of breaking something that wasn't broken lol

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post #3 of 18 (permalink) Old 04-02-2012, 12:32 PM
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I am currently in the middle of a cam swap and im switching to the ls2 style. car has 45k miles and the stock chain tensioner was in perfect shape. Im also replacing the chain.

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post #4 of 18 (permalink) Old 04-03-2012, 01:12 AM Thread Starter
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Swapped...and not happy about it.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #5 of 18 (permalink) Old 04-03-2012, 01:13 AM
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Quote:
Originally Posted by gtp6515 View Post
Swapped...and not happy about it.
could you be more specific as to why?

PBM 09 G8 GT premium, 226/234 PatG Cam, 2800 PI Stall, Pacesetter Headers, Full custom 3" exhaust, Fast 102, NW 102, ls7 maf, Treadstone Performance maf housing, HPTuners self-tuned. 442 RWHP with stock heads
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post #6 of 18 (permalink) Old 04-03-2012, 10:41 AM Thread Starter
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Quote:
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could you be more specific as to why?
Because I was dumb enough to put on the oil pump, get the pick up tube on, and the bolt tight, and then realized that because I have not installed the cam I would not be able to see the dot on the crank sprocket. Was such a pita to get the tube situated and the bolt tight, and then had to take it back off. With the other dampener, you can see the timing dot. I won't have the cam until Thursday or Friday, so I thought I could get started and get ahead of the game.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #7 of 18 (permalink) Old 04-04-2012, 03:54 AM
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I found large parts of mine in the oil pan. I'd be ready to change it, either way. And yes, it's best to check the alignment prior to reinstall of the oil pump. I'm also thinking that if it is as easy as I've heard, remove the 2 motor mount bolts, jack up the motor 2 inches. Place small 2x4s between the mount and the k member to give more clearance. Then when you lower the pan, you have enough room to get the oil pump pickup bolt with no issues. Next time...
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post #8 of 18 (permalink) Old 04-04-2012, 08:38 AM Thread Starter
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Never heard of this method. I did have some trouble getting the oil pan to drop much.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #9 of 18 (permalink) Old 04-05-2012, 02:17 AM
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Never heard of this method. I did have some trouble getting the oil pan to drop much.
We dropped the oil pan 4 times for my cam install. Removing the oil pan by lifting the engine slightly is an excellent way to do it. Plus, it gives you incredible peace of mind knowing that you got the oil pick up tube into the oil pump properly!

The reason the oil pan doesn't have much room to drop is because of the steering rack & pinion. If you search the forums I posted a small how to on the easiest way we could come up with to drop the oil pan completely out. It does include taking of the two motor mount nuts, the rack & pinion, and and a few various other bolts responsible for holding that oil pan on.

The rack & pinion is literally 4 large nuts on the frame and one nut on each side for the tie rods. Very easy.

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post #10 of 18 (permalink) Old 04-05-2012, 08:45 AM
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:banghead, remember, when the number 1 piston is all the way up that means that the timing dot on the crank is facing straight up.

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post #11 of 18 (permalink) Old 04-05-2012, 08:49 AM
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It's easy when you have the heads off, but not too bad even with them on. A simple flashlight to the spark plug hole helps tremendously so you can see the piston.

08 PB GT
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Borg Warner S480 coming soon
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post #12 of 18 (permalink) Old 04-05-2012, 09:09 AM Thread Starter
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I just thought it was easiest to line up the dots. But the pick up tube was a real bitch.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #13 of 18 (permalink) Old 04-05-2012, 09:15 AM
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It is the easiest, but what I'm saying is, you don't have to see the bottom dot on the crank pulley to know where it's at. Simply put number one piston (the one closest to you facing your right hand side as you're looking from the front of the engine) all the way up, TDC, and you can rest assured the dot on the crank is facing straight up.

08 PB GT
695/598 14.7psi. With a TVS1900

Borg Warner S480 coming soon
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post #14 of 18 (permalink) Old 04-05-2012, 12:57 PM
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Subed for good info

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post #15 of 18 (permalink) Old 04-06-2012, 11:18 PM Thread Starter
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Swap done...Very happy with the results.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #16 of 18 (permalink) Old 04-07-2012, 12:37 AM
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Video! Sound clip! Yarg!

08 PB GT
695/598 14.7psi. With a TVS1900

Borg Warner S480 coming soon
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post #17 of 18 (permalink) Old 04-07-2012, 09:00 AM Thread Starter
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Working today, then heading to vegas tonight. I will do it weds when I get back. Definitely a fair amount more power.


219/223 .625 .625 112 "Little Lunati", 11.78 @ 119, 440/421 dynojet, Crawford heads, tb, intake. Kooks 1 3/4 lts and solo Mach balance catted with added Solo resonators, VCM, 3.45's, stock stall.
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post #18 of 18 (permalink) Old 04-07-2012, 12:32 PM
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Tune for 12.5AFR, and bump the timing up. That cam will take some timing!

08 PB GT
695/598 14.7psi. With a TVS1900

Borg Warner S480 coming soon
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