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ATI Balancer/Timing Cover Issue #2759551
04/03/20 04:38 PM
04/03/20 04:38 PM
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portland, ct
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Since1822 Offline OP
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Since1822  Offline OP
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Anyone have an issue with the hub bolts on an ATI damper hub being too long and contacting the stock timing chain cover? It is the 917470E damper for stock pulleys. The bolts for the hub seem to be slightly long on the back side.. Never ends lol

Re: ATI Balancer/Timing Cover Issue [Re: Since1822] #2759559
04/03/20 05:10 PM
04/03/20 05:10 PM
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A collage of whims
topside Offline
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A collage of whims
I think I saw something about that in either HotRod magazine, or HotRod Garage or maybe Engine Masters (the latter two streaming).
Sorry I can't narrow it down better.

Re: ATI Balancer/Timing Cover Issue [Re: Since1822] #2759681
04/03/20 11:14 PM
04/03/20 11:14 PM
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North Dakota
Azzkikrcuda Offline
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I have the same damper and had the same problem. Had to grind the bolts flush with the back side. Check your pulley bolts also, very little clearance if they stick thru the back.


The only Carbs I care about are under the hood!
Re: ATI Balancer/Timing Cover Issue [Re: Azzkikrcuda] #2759683
04/03/20 11:23 PM
04/03/20 11:23 PM
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pittsburghracer Online work
"Little"John
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Summit offers different sized bolts for this application if you don't want to grind them. They also offer the torx bit if you don't have one.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: ATI Balancer/Timing Cover Issue [Re: pittsburghracer] #2759684
04/03/20 11:25 PM
04/03/20 11:25 PM
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pittsburghracer Online work
"Little"John
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They also offer the shim that goes behind the damper to space it out if anyone needs that.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: ATI Balancer/Timing Cover Issue [Re: Since1822] #2759699
04/04/20 03:16 AM
04/04/20 03:16 AM
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New York, USA
Chargerfan68 Offline
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Originally Posted by Since1822
Anyone have an issue with the hub bolts on an ATI damper hub being too long and contacting the stock timing chain cover? It is the 917470E damper for stock pulleys. The bolts for the hub seem to be slightly long on the back side.. Never ends lol


Yes. I had that exact problem. I had to grind the bolts so they were flush. The just contacted the corner of the raised area that houses the seal. Finding zero crank endplay after the motor was fully assembled with damper on is how it was discovered. Could have been a disaster if not found.


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: ATI Balancer/Timing Cover Issue [Re: Since1822] #2759707
04/04/20 05:41 AM
04/04/20 05:41 AM
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NW Pa.
KD800X Offline
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Had the same problem a few years ago after I had my ATI damper rebuilt. I called them and they sent me shorter bolts.

Re: ATI Balancer/Timing Cover Issue [Re: pittsburghracer] #2759759
04/04/20 10:12 AM
04/04/20 10:12 AM
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Milwaukee WI
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TRENDZ Offline
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Originally Posted by pittsburghracer
Summit offers different sized bolts for this application if you don't want to grind them. They also offer the torx bit if you don't have one.


Not sure if this is the same situation, but I recently was working on a brand x engine. The bolts for the ATI damper were separate. They offered the drive bit for sale with the bolts. I have torx bits. Just not the correct torx bits. Had to buy the bit after the fact. The bolts require a torx40+, not the same as a t40, or a tamper proof t40. None of my tool trucks stock that bit, but all can special order them. So, if the tool is offered, get it.


"use it 'till it breaks, replace as needed"
Re: ATI Balancer/Timing Cover Issue [Re: TRENDZ] #2759760
04/04/20 10:16 AM
04/04/20 10:16 AM
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"Little"John
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Originally Posted by TRENDZ
Originally Posted by pittsburghracer
Summit offers different sized bolts for this application if you don't want to grind them. They also offer the torx bit if you don't have one.


Not sure if this is the same situation, but I recently was working on a brand x engine. The bolts for the ATI damper were separate. They offered the drive bit for sale with the bolts. I have torx bits. Just not the correct torx bits. Had to buy the bit after the fact. The bolts require a torx40+, not the same as a t40, or a tamper proof t40. None of my tool trucks stock that bit, but all can special order them. So, if the tool is offered, get it.




Ya I ordered two of them years ago just in case. Lol. Don’t forget to locktite those bolts


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: ATI Balancer/Timing Cover Issue [Re: pittsburghracer] #2759762
04/04/20 10:24 AM
04/04/20 10:24 AM
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Milwaukee WI
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TRENDZ Offline
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Info...

2DF3FF1D-356C-45D5-9AE4-E37A7A93226E.jpeg

"use it 'till it breaks, replace as needed"
Re: ATI Balancer/Timing Cover Issue [Re: TRENDZ] #2759797
04/04/20 12:18 PM
04/04/20 12:18 PM
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north of coder
moparx Offline
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with one not knowing the difference unless you have the regular and plus fasteners side by side, is there a way to tell by looking which you have ?
in other words, how can you tell at a glance which bit to use on a particular fastener ?
beer

Re: ATI Balancer/Timing Cover Issue [Re: moparx] #2759811
04/04/20 12:55 PM
04/04/20 12:55 PM
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Milwaukee WI
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TRENDZ Offline
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Image of both...

EB6C9924-3B38-4CB6-9083-FB9C3735B7B4.jpeg

"use it 'till it breaks, replace as needed"
Re: ATI Balancer/Timing Cover Issue [Re: TRENDZ] #2760293
04/05/20 09:45 AM
04/05/20 09:45 AM
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440Jim Offline
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I didn't know that about the various Torx fasteners/bit.
I learn something new everyday. scope


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: ATI Balancer/Timing Cover Issue [Re: 440Jim] #2760302
04/05/20 10:00 AM
04/05/20 10:00 AM
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Ohio
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jlatessa Offline
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Ohio
Damn, just when I thought my toolbox was full!
I may need another storage unit....
Joe

Re: ATI Balancer/Timing Cover Issue [Re: TRENDZ] #2760356
04/05/20 12:19 PM
04/05/20 12:19 PM
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north of coder
moparx Offline
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Originally Posted by TRENDZ
Image of both...


thanks for that blown up pic ! [us old, blind guys appreciate BIG pictures and diagrams ! up]
at what torx size do these plus bits come into play ? size 20 and larger ? smaller than that ? the 20 size in the torx is kind of tough to see for me if it would be a square or round shouldered.
i like a good excuse to buy new tools !
beer

Re: ATI Balancer/Timing Cover Issue [Re: moparx] #2760629
04/06/20 07:54 AM
04/06/20 07:54 AM
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Posts: 215
portland, ct
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Since1822 Offline OP
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Since1822  Offline OP
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portland, ct
Thanks for the replies everyone. Apparently ATI makes a spacer as well and that is what we went with. Going to use the Doty pulley and everything should line up with no rubbing.







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