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Underdrive Pulley - easy removal?

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Old Dec 26, 2005 | 02:34 PM
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Default Underdrive Pulley - easy removal?

I'm in the midst of removing my underdrive pulley - any special tricks or tips or special removal tools needed?



EG
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Old Dec 26, 2005 | 02:53 PM
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I was thinkiing about instaling one. Just curious why you're removing your's.
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Old Dec 26, 2005 | 03:25 PM
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In the midst? You've already started and aren't sure what to do?
Tips n tricks:
Put the car up on a lift
Remove the front wheels
Drop the steering rack
Most likely drain the radiator and remove it
Slide the condensor aside
Get a torque wrench, air compressor and 6 foot breaker bar
Get a pulley remover
Remove the pulley
Reverse the process to install the stocker
What a breeze huh!!!!

There is no way I would do that much work to remove a pulley.

Last edited by TheRooster; Dec 26, 2005 at 03:28 PM.
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Old Dec 26, 2005 | 05:01 PM
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Dynamite lol
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Old Dec 26, 2005 | 06:11 PM
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EG,

If I remember you are running the SLP. I think you need to use a different puller, but am not sure. Are there threaded holes in the hub section? I would be careful before slapping on a 3 jaw puller, not sure it will take the force that will be required for removal.
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Old Dec 26, 2005 | 07:00 PM
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I am using the ASP, Bob I got it off no worries - I just had the wrong puller for the application. I had a puller for the stock pulley - I bought a threaded puller and it worked like a charm.

And to answer the question some have asked - I have done this before and was investigating a noise I was getting from my cam/pulley area. Turns out to be a stretched chain (bought new - but oh well)

Car is going back together in a few days when the new LS2 chain arrives.

Stephen
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Old Dec 26, 2005 | 07:48 PM
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Originally Posted by TheRooster
In the midst? You've already started and aren't sure what to do?
Tips n tricks:
Put the car up on a lift
Remove the front wheels
Drop the steering rack
Most likely drain the radiator and remove it
Slide the condensor aside
Get a torque wrench, air compressor and 6 foot breaker bar
Get a pulley remover
Remove the pulley
Reverse the process to install the stocker
What a breeze huh!!!!

There is no way I would do that much work to remove a pulley.
Been there, done that

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Old Dec 26, 2005 | 08:06 PM
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Is this the "old" motor? If not, have you considered the Katech (JWIS) timing chain?

Any idea why it stretched or how much? You are the first I have heard of that has had an issue with the LS2 chain. Also, is your block drilled for the timing chain damper? I installed one in mine while it was apart

PS: That's your old damper bolt in the photo

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Old Dec 26, 2005 | 08:24 PM
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Bob, it is my "old" LS1 engine that I installed the big cam in July. Regarding the timing chain damper - no, I do not have one but I am putting one on my new LS2. I ordered a new LS2 timing chain from the stealership - I have no idea why it stretched (if it did indeed stretch). We cannot locate a 'smoking'gun' for the loud noise that is made on cold start only.

Stephen
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Old Dec 26, 2005 | 08:29 PM
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I believe the LS2 comes with the damper already, GM woke up I guess.
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Old Dec 26, 2005 | 09:25 PM
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Originally Posted by vettenuts
I believe the LS2 comes with the damper already, GM woke up I guess.
Sweet! Thanks for the heads up, Bob
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Old Dec 26, 2005 | 10:42 PM
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EG,

Are you adding an underdrive pulley w/ your blower setup?

I had a h/c package (w/ an ASP underdrive pulley) and then added a P1.....only made 3.5 to 4 lbs of boost and actually lost hp vs. NA. I thought that I would just get a different pulley, but that wouldn't work.

Not sure if you are about to make the same moves I did about 6-8 months ago......

-Marko
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Old Dec 26, 2005 | 10:54 PM
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Originally Posted by vettenuts
I believe the LS2 comes with the damper already, GM woke up I guess.
correct, here's a pic of a 2005 cam install from a few months ago

419whp w/ cam/LT headers
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Old Dec 26, 2005 | 11:06 PM
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Originally Posted by nextphasemarko
EG,

Are you adding an underdrive pulley w/ your blower setup?

I had a h/c package (w/ an ASP underdrive pulley) and then added a P1.....only made 3.5 to 4 lbs of boost and actually lost hp vs. NA. I thought that I would just get a different pulley, but that wouldn't work.

Not sure if you are about to make the same moves I did about 6-8 months ago......

-Marko
I'm going back to the stock pulley when I get the new LS2. The ASP undersrive pulley is being sold with my current LS1.

EG
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