ATI Damper puller/installer

I purchased an ATI damper installer/puller to properly install My Super damper and it came with a few different adapter threads but they all seem to be in standard sizes. Does anyone know where to find the adapter for the 16x1.5 pitch of the crankshaft bolt? I've looked all over and cant find anything. There's a slight chance that one of the thread adapters will actually work but I don't want to hassle with getting the bolt off and everything apart to just be stuck on that. I cant even track down a 16x1.5 bolt locally to make my own press (thats why i bought the installer). Also how can you properly torque the crank bolt without the crankshaft moving? The ATI damper doesn't have the hex shape center for the damper holding tool. Any advise will be greatly appreciated.

PS I dont have an impact gun but I do have a 3/4" drive torque wrench, Breaker bar, extensions, thin walled impact socket.

Put it in 3rd gear and set the parking brake, if it still turns get some one to stand on the brakes while torquing it. The stock crank pulley is not a press fit and you sure the new damper is different?

The damper itself is auto waves super damper, due to the elasticity of the aluminum damper it requires to be pressed on, it's the installation tool that I'm not sure about. Will that method not damage the drivetrain? Expensive components are involved so I'm just very cautious.

Call autowave:wink:

Briank said:

Call autowave:wink:

Click to expand...

I did and their technician it out until Thursday

What ever happened with this project?

AFAIK, They only make a few dampers at a time and no one has it in stock
I gave up trying for the next batch since beginning of the year.

I was also told that its a really really tight fit and its not easy to remove or install....not saying its a bad part...just saying.

liftnot said:

AFAIK, They only make a few dampers at a time and no one has it in stock
I gave up trying for the next batch since beginning of the year.

I was also told that its a really really tight fit and its not easy to remove or install....not saying its a bad part...just saying.

Click to expand...

I just got mine this week...

I bought ATI’s damper puller / installer pro kit which includes “a variety of installer studs” as well. Mine didn’t include the necessary 16 x 1.5 mm installer stud either. Precision Performance Products makes the puller / installer ATI sells and they also sell the required 16 x 1.5 mm adapter stud. It’s part number 1216 and you can find it here: http://www.precisionperformance.com/puller.htm

My ATI damper was just installed using the "ATI" damper puller / installer and the correct adapter stud. With those tools, my mechanic said the installation was very easy.

By the way, I bought the last 16 x 1.5 mm adapter stud Precision Performance Products had in stock but they said they’re going to do another production run soon.

greenberet said:

I bought ATI’s damper puller / installer pro kit which includes “a variety of installer studs” as well. Mine didn’t include the necessary 16 x 1.5 mm installer stud either. Precision Performance Products makes the puller / installer ATI sells and they also sell the required 16 x 1.5 mm adapter stud. It’s part number 1216 and you can find it here: http://www.precisionperformance.com/puller.htm

My ATI damper was just installed using the "ATI" damper puller / installer and the correct adapter stud. With those tools, my mechanic said the installation was very easy.

By the way, I bought the last 16 x 1.5 mm adapter stud Precision Performance Products had in stock but they said they’re going to do another production run soon.

Click to expand...

Did you feel improvement on the throttle response after the instalation of the new damper?

The difference is debatable but I have faith that its doing a better job than the oem one. One odd note, the oem one I removed had a center hex diameter of 50mm instead of 45mm. This leads me to believe it could have been replaced before (with the heavier auto-transmission damper). Anyways even if there are no significant gains I'm content with knowing it won't fly apart and lead to engine failure.

BBVNSX said:

Did you feel improvement on the throttle response after the instalation of the new damper?

Click to expand...

The damper has been installed but the engine is still out of the car. I also had Comptech adjustable cam gears installed, new-style LMAs, had the valve clearance adjusted, etc. I’ll report how it feels after I’ve driven the car again, but several variables changed at the same time.

USAFguy22 said:

One odd note, the oem one I removed had a center hex diameter of 50mm instead of 45mm.

Click to expand...

According to this Service Bulletin, NA1 5-speeds used 50 mm crankshaft pulleys / harmonic dampers until engine number C30A1-1300798 (some time during the US 1991 model year) and 45 mm pulleys thereafter. So if you have an early 1991, that would explain it.

USAFguy22 said:

Anyways even if there are no significant gains I'm content with knowing it won't fly apart and lead to engine failure.

Click to expand...

+1. My OEM harmonic damper fell apart and chewed a hole through the lower timing belt cover. Thankfully it didn’t cut the timing belt and destroy my engine. With the new ATI damper, that should never be able to happen again.

greenberet said:

+1. My OEM harmonic damper fell apart and chewed a hole through the lower timing belt cover. Thankfully it didn’t cut the timing belt and destroy my engine. With the new ATI damper, that should never be able to happen again.

Click to expand...

Yes my first concern is the same... throttle response improvement would be nice but I would do it the same way :wink:... where did you get your ATI Damper?

I bought the damper from ATI. It’s part number 917757 and can be found on their website here: http://www.atiracing.com/products/dampers/charts/damhonda.htm. You might want to call a few shops that sell ATI dampers to see if you can get it for less than the recommended retail price, however.

I ordered the damper and the installer at the same time so ATI knew exactly which crankshaft the installer needed to bolt to. If you order the Puller / Installer Pro Kit from ATI, make sure you specifically request that the kit includes the correct 16 x 1.5 mm adapter.

I have an ATI damper waiting in my garage for installation. I'm curious about the installer/puller, but I couldn't find it on the ATI site. How does it work, what does it look like, is it expensive ...? thanks

(But I did spot their titanium damper bolts. hmmmm...)

You can find the installer/puller here:

http://www.atiracing.com/products/dampers/damperparts/index.htm

The puller is still in my wishlist for 2013 :wink:, so I don't know How it works... or the price... :redface:

OK had a look at that, thanks. A bit pricey (especially after freighting down here).

I couldn't find a description in Workshop Manual for removing/installing harmonic balancer, but I assume both OEM and ATI are press fit, and so it's not possible to remove OEM and install an ATI super damper without a puller/installer?

sparky said:

OK had a look at that, thanks. A bit pricey (especially after freighting down here).

I couldn't find a description in Workshop Manual for removing/installing harmonic balancer, but I assume both OEM and ATI are press fit, and so it's not possible to remove OEM and install an ATI super damper without a puller/installer?

Click to expand...

The OEM damper has grooves much like splines and it will pull off by hand.
You will need the damper installer for the ATI unit because it is pressed on (It also has a groove to prevent movement). The installer threads into the crank shaft and has a larger nut and thrust bearing that is used to press on the damper (it helps to boil the damper for 5 mins to expand it). I didn't have the exact adapter threads but some that were close (able to thread in about 3 rotations) to start the pressing process. Once the ATI unit was pressed on (5-10mm) I used the crankshaft bolt to press it on the rest of the way since the initial press got it far enough for the Bolt to grab enough threads. I know this was a little risky but it payed off in the end. Some people have used the crankshaft bolt to pull it entirely on but I wouldn't recommend that. If you ever plan to remove the damper you will certainly need the installer/remover.

Hope this helps.

thanks USAFguy that explanation really helps. I've decided to fork out for the adapter and I'm in contact with ATI. I'll make sure I get the 16x1.5 adapter, although I like your "work-around" without it.

Glad I could help, if you need any of the tools for installation let me know and I could sell them for a decent price, i only used them for the actual installation and nothing else (since its 3/4" drive) all impact quality. The socket, extensions, breaker bar, torque wrench, and oem damper holder (45mm for mid '91 and newer MT). Since the damper holder only works for the oem unit (has the hex center pattern and ATI is round) you have to get creative for the torque process since the motor will want to rotate.

The ATI installer is not required, if you have access to a standard pulley puller. It will draw on with an appropriate sized impact - heating the adapter will make things easier if need be, as it is a press fit to the factory crankshaft. It can be removed with a standard puller (which is available for rent from many auto parts stores if you're doing this yourself).

We keep these in stock:
http://scienceofspeed.com/products/engine_performance_products/NSX/ATI/Super_Damper/

stevenlee has been nice enough to "lend" me the ATI installation tool he fabricated. After I am done using it, he wants me to circulate the tool within the NSX community.

It will be known as "stevenlee's damper install tool" a la Drew's ABS bleeder tool.

Thanks again, stevenlee!

ScienceofSpeed said:

The ATI installer is not required, if you have access to a standard pulley puller.

Click to expand...

it seems installing is easy enough, but being a press fit what about future removal of the ATI damper? would a "standard pulley puller" suffice? I was assuming puller needs to have bolt holes aligned to ATI pattern.

Also I read in attached that "boiling the damper for 5 minutes" before installing helped fitment. I'm wondering if this is OK, or does it risk damaging the elastomer O-rings ?

L_RAO said:

stevenlee has been nice enough to "lend" me the ATI installation tool he fabricated. After I am done using it, he wants me to circulate the tool within the NSX community.

Click to expand...

I'm not sure I can expect "stevenlee's damper install tool" to come visit Australia :smile: but could you post a good picture or two please L_RAO? Local fabrication is an option ...

I'm attaching a few photos of the damper installation tool I made.
It's easy to make if you can find a long threaded coupler (or if you can weld 2 nuts together).
I couldn't find a coupler with the right threads so I made my own coupler by welding 2 nuts together.
I made the stud by cutting the head off a bolt.
I then welded the coupler to the stud to make the part I call the "Bolt Extender".
The blue tape is used to enlarge the outside diameter of the "Steel Tube" to center it in the damper for equalizing the pressure.

Instructions for installing the damper:
1. Place the damper on the end of the crank shaft.
2. Place the steel tube (with tape) into the damper.
3. Screw the "Bolt Extender" into the crank shaft as far as it will go by hand.
4. Place the jam nut and washers onto the bolt and screw the bolt into the "Bolt Extender" as far as it will go by hand.
5. Tighten the jam nut to push the damper onto the crank shaft as far as it will travel.
6. Remove all of the installation tool components.
7. Remove the "Bolt Extender" from the other components.
8. Place the steel tube (with tape) into the damper.
9. Screw bolt with and washers jam nut into the crank shaft as far as it will go.
10. Tighten the jam nut to push the damper all the way into position.
11. Remove all the installation tool components.
12. Install the OEM bolt and washer per OEM specs.

Helpful Tip: The use of this tool and specifically the jam nut to push the damper onto the crank shaft prevents wear on the internal threads of the crank shaft.








<img src="http://www.nsxprime.com/photopost/data/500/photo_2_.JPG" />


<img src="http://www.nsxprime.com/photopost/data/500/photo_4_.JPG" />