Moparts

ATI damper install issue: What's the problem?

Posted By: 64Post

ATI damper install issue: What's the problem? - 10/04/09 02:50 AM

This looks to me like a simple hub issue, but is it?. The PN for the damper is 917122E, and 916661 L for the hub. I'm assuming the "L" is a long hub version, and I just need to get the 916661. You can see by the pics there was no way the damper was going to work without hitting the oil pan, and I still had another .310" to go before the hub would sit flush with the end of the crank.

Comments, suggestions, advice?







The bolts under the damper on the left are just about the diameter (.310") that is needed to have both dampers flush with the crank end.
Posted By: Anonymous

Post deleted by Defbob - 10/04/09 03:27 AM

Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 04:11 AM

Quote:

the damper is 917122E is noted in the catalog
as "not a OEM replacement for stock pulley location"
there must be a spacer ring but not listed.
CALL ATI MONDAY



I planned to call them first thing, but figured someone else ran into this problem already. They don't list a lot of choices for a Mopar. There has to be a combo of parts for this application.
Posted By: Anonymous

Re: ATI damper install issue: What's the problem? - 10/04/09 04:14 AM

Quote:

Quote:

the damper is 917122E is noted in the catalog
as "not a OEM replacement for stock pulley location"
there must be a spacer ring but not listed.
CALL ATI MONDAY



I planned to call them first thing, but figured someone else ran into this problem already. They don't list a lot of choices for a Mopar. There has to be a combo of parts for this application.



actually they do have a pretty good listing for Mopars. is there something unusual about what your building?
Posted By: Cab_Burge

Re: ATI damper install issue: What's the problem? - 10/04/09 04:22 AM

Quote:

the damper is 917122E is noted in the catalog
as "not a OEM replacement for stock pulley location"
there must be a spacer ring but not listed.
CALL ATI MONDAY

I call them first before buying any of there dampeners on any motor, they have way to many choices for me to guess and get it right the first time. There tech department is outstanding, make sure and give them all the details they ask for before ordering this one and the next ones, ask them about pulleys if your going to run one also
Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 04:27 AM

Quote:

Quote:

Quote:

the damper is 917122E is noted in the catalog
as "not a OEM replacement for stock pulley location"
there must be a spacer ring but not listed.
CALL ATI MONDAY



I planned to call them first thing, but figured someone else ran into this problem already. They don't list a lot of choices for a Mopar. There has to be a combo of parts for this application.



is there something unusual about what your building?



Yeah, it actually runs this time and makes good power...

Nothing unusual just a 383/451. The damper on the left is cheap piece and the outer ring is getting loose. I was planning on squeezing another 40 HP out of the combo and thought it would be prudent to invest in a quality damper.
Posted By: Anonymous

Re: ATI damper install issue: What's the problem? - 10/04/09 04:33 AM

what kind of damper is the one on the left?

glad the engine runs this time.
Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 04:36 AM

Quote:

Quote:

the damper is 917122E is noted in the catalog
as "not a OEM replacement for stock pulley location"
there must be a spacer ring but not listed.
CALL ATI MONDAY

I call them first before buying any of there dampeners on any motor, they have way to many choices for me to guess and get it right the first time. There tech department is oustanding, make sure and give them all the details they ask for before ordering this one and the next ones, ask them about pulleys if your going to run one also



I know Andy sells a spacer through Mancini, but i don't know if it's applicable to this case. I am going to run pulleys, but I wasn't too concerned with the alignment as I can buy the WP spacers and fab the alternator spacers.

I thought I was going to be crapping in high cotton when the hub came out of the box at .0011," -- right at the outside tolerance limit.
Posted By: Cab_Burge

Re: ATI damper install issue: What's the problem? - 10/04/09 05:07 AM

ATI makes and sells the spacer for their dampeners, Summit sells them
Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 05:17 AM

I don't mind paying for a new hub if necessary; ignorance should be costly. A different damper is another story. ATI and Summit are pretty strict on their return policy for these dampers. It doesn't help that mine showed up with oil and fingerprints already on the parts.

Thanks, Cab
Posted By: Cuda_70

Re: ATI damper install issue: What's the problem? - 10/04/09 08:30 AM

It's hard to tell from the picture how much distance you have left before the damper hits the oilpan, but it's not the front of the hub that should line up with the end of the crank, it's the rear that should hit the crank sprocket+oilslinger. Make sure that the oilslinger is in the right position.
Posted By: BSB67

Re: ATI damper install issue: What's the problem? - 10/04/09 12:01 PM

917470E is probably the damper that you need. It has shell #7040EP, and hub #6661. I doubt that the 6661 hub will help, as the shell that you have is thicker.

Let us know what ATI says.
Posted By: JohnRR

Re: ATI damper install issue: What's the problem? - 10/04/09 02:27 PM

Quote:

I don't mind paying for a new hub if necessary; ignorance should be costly. A different damper is another story. ATI and Summit are pretty strict on their return policy for these dampers. It doesn't help that mine showed up with oil and fingerprints already on the parts.

Thanks, Cab



Summit has a strict return policy ON PAPER , but they don't seem to adhere to it . I bought a set of main bearings , they were LOOSE IN THE BOX , right on the box it says not returnable if shinrk wrap is broken , shrink wrap ? There was no shrink wrap on these . They did send me another set and took these back , I wonder who got them next
Posted By: AndyF

Re: ATI damper install issue: What's the problem? - 10/04/09 05:35 PM

917122E should fit fine with a stock timing chain cover. I use that damper all the time on stock type motors. That damper fits my billet timing chain cover but it won't fit the Indy cover or the Jesel belt drive.

Attached picture 5524288-DSC_1145(Large).JPG
Posted By: dodgeboy11

Re: ATI damper install issue: What's the problem? - 10/04/09 05:59 PM

That's interesting, but based on the picture you took, the balancer hub should bottom just before the balancer hits the oil pan. Unless I'm just not seeing things right. Interesting story on my ATI for my small block, the hub's too long. I had to build a custom pulley for it to line up the belts. Then I found out I can cut the hub down if I need to, up to .650" if I remember correctly.
Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 06:17 PM

Quote:

917122E should fit fine with a stock timing chain cover. I use that damper all the time on stock type motors. That damper fits my billet timing chain cover but it won't fit the Indy cover or the Jesel belt drive.



What hub number, Andy? The hub I have is clearly toooo long.
Posted By: W5Duster436

Re: ATI damper install issue: What's the problem? - 10/04/09 06:30 PM

Are you sure this will work with a 3/8 fuel line?
Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 06:39 PM

Quote:

I doubt that the 6661 hub will help, as the shell that you have is thicker.



I was thinking the same thing. The mounting flange/register has to be in the same location on both hubs (6661, and 6661L) in order for the damper and pulley to center themselves on the hub. In my mind the 6661 hub should measure out at 1.825" vs the 2.135" of the 6661L; Combined with a thinner shell that should take care of the problem.

I read the ATI chart and did see the footnote about not being for stock pulley location. But it wasn't specific in saying the added thickness of the shell was toward the engine side vs the radiator side (if it's even possible). If the added thickness was toward the radiator side I could've shimmed the WP pulley and corrected the alternator spacers.
Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/04/09 06:41 PM

Quote:

Are you sure this will work with a 3/8 fuel line?




Posted By: 451Mopar

Re: ATI damper install issue: What's the problem? - 10/05/09 04:27 AM

Did the hub go all the way on, and bottom out?
I know on mine the outer shell is really close to the oil pan / timming chain cover.
I guess you could always put another oil slinger between the timming chain gear and the damper hub?
Posted By: Cudafied

Re: ATI damper install issue: What's the problem? - 10/05/09 09:59 AM

I had to use 2 spacers on mine..

Posted By: 64Post

Re: ATI damper install issue: What's the problem? - 10/05/09 01:49 PM

I just got off the phone with ATI tech and the suggested combo for the stock pulley alignment is the 2-ring 917470E and 916661 hub. Obviously the 3-ring does a better job, but will require pulley alignment. So there you have it. Back to the man cave...
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