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ATI Super Damper STUCK on LSA crank.

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Old Jun 28, 2023 | 09:02 PM
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Default ATI Super Damper STUCK on LSA crank.

I've been battling this bastard since Friday. Here's the order of operations I've taken:

Access the crank pulley first and foremost.

Cut stock crank bolt to give me something to push onto

break 3 pullers (bolts snapping, the bearing in the hub popped from one)

https://shop.advanceautoparts.com/p/...nid=10451277-P

friend brings his ATI puller over

starts to break

he goes home.

buy MAPP torch

break another Advance Auto rental, this time with a hot ATI hub.

Talk to ATI. They say a lot of heat - or i have to cut it off.

I start cutting it off with a cutoff wheel, but I'm really scared of cutting into the crankshaft. That's just about the last thing I want to do. I don't have the ***** to continue.

Am I allowed to use an acetylene torch on this thing? What are my other options? I have absolutely no idea how this bastard got so stuck.
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Old Jun 29, 2023 | 02:01 AM
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Oh man that's rough. I have an LSA crank in my engine and when I installed my super damper I had the hub slightly honed and lathered the crank snout with anti-seize. If you don't want to use a torch maybe try a really good heat gun and let it sit there for a few hours to get it really hot all the way thru then try the puller??
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Old Jun 29, 2023 | 09:01 AM
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Dumb question here, but are you sure your bolt flange is not overlapping the hub and keeping the damper pinned down? It's been a long time since I fiddled with my damper, but I also remember doing the same by cutting threads off a stock bolt and using it as a base to push on with the puller.

For future reference, the ATI dampers are intended to be honed to fit, not just put on as received. Interference fit specs are provided with the instructions. Measure the crank OD and damper ID and hone the damper until the interference is within spec. My LS7 crank had an OD on the high side of spec so I had to hone my ATI damper or it would have been too tight.
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Old Jun 29, 2023 | 09:16 AM
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Originally Posted by QwkTrip
Dumb question here, but are you sure your bolt flange is not overlapping the hub and keeping the damper pinned down? It's been a long time since I fiddled with my damper, but I also remember doing the same by cutting threads off a stock bolt and using it as a base to push on with the puller.

For future reference, the ATI dampers are intended to be honed to fit, not just put on as received. Interference fit specs are provided with the instructions. Measure the crank OD and damper ID and hone the damper until the interference is within spec. My LS7 crank had an OD on the high side of spec so I had to hone my ATI damper or it would have been too tight.
I don't believe the guy who installed it has a clue what a hone is. But you are 100 percent right

The flange is totally gone. I cut myself a chasm so I can see where I'm cutting if it comes to that. I think it did


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Old Jun 29, 2023 | 08:32 PM
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Wow! You're having a bad day there.

The sleeve unfortunately goes all the way back behind the engine front cover. And correct me if I'm wrong but it seems now there is no structure left to pull on? If no way to pull, then I'm worried you have no choice left but to cut the sleeve end to end and peel it off.

I'm guessing the tightest hold is toward the mid-span of that sleeve because the extra tight fit probably buggered up the surface finish on the crank as it was slid in place.
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Old Jun 30, 2023 | 08:37 AM
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"are you sure your bolt flange is not overlapping the hub and keeping the damper pinned down? It's been a long time since I fiddled with my damper, but I also remember doing the same by cutting threads off a stock bolt and using it as a base to push on with the puller".

This been verified?
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Old Jul 4, 2023 | 12:50 PM
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Dang brother...It pains me to see what you've been going through. I've yet to have an issue when installing an ATI product and it's always been just anitseize on the ones I've installed.
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Old Jul 5, 2023 | 08:29 AM
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Should always mic the crank snout and balancer hub to see if the hub needs honed a bit. This really sucks man.
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Old Jul 13, 2023 | 07:11 PM
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just a follow up on what i wound up doing to get it off (just in case someone runs into this)


A friend let me borrow his induction heater. This thing is a miracle tool. I pulled the heater around the back of the hub, and in front of the AC pulley.

I was stuck using only 2 bolts (due to cuts, as well as bolts breaking off inside the hub)
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