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11-18-2014, 06:56 PM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
Cast Aluminum AC Pedals
I find the rubber grommets supplied with my AC pedals simply won't fit. The pedal has a scant 1/2" hole and the pedal thickness is 5/16. The overall width of the grommet should be 5/8".
I ask because as I wander through the WWW looking for these, I'm finding that, if I do, Ill be buying many more than I need. It is possible that someone here has gone through this before and has an unneeded supply stashed somewhere. I need just four but wouldn't be surprised if I bit*hed one or more up so lets say that I'm looking for six or eight. Does anyone have these? Thanks ... Alan in the too-fast 2948.
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11-18-2014, 07:06 PM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
Posts: 5,390
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Not Ranked
If you have an Ace Hardware near you, they have a pretty good selection of grommets. You can buy any number that you want too.
Larry
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Alba gu brąth
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11-18-2014, 07:16 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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Not Ranked
McMaster Carr. Just go here.
McMaster-Carr
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All that's stopping you now Son, is blind-raging fear.......
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11-19-2014, 04:22 AM
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CC Member
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Join Date: Feb 2009
Posts: 1,690
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Not Ranked
I think I took an endmill in my drill press and opened the hole up slightly. I had the same problem.
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11-19-2014, 05:53 AM
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CC Member
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Join Date: Jan 2001
Location: Cape Coral,
FL
Cobra Make, Engine: 2009 Solbra
Posts: 3,861
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Not Ranked
Oil the grommet & you can force it into the opening
__________________
Dan Wulff
I carry a gun because a cop is too heavy.
(No doubt, most will blame it on the donuts.)
You're just jealous because the voices only talk to me
Earth is the insane asylum for the universe.
The gene pool could use a little chlorine.
The original point and click interface was a Smith & Wesson.
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11-19-2014, 06:43 AM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
To remove this question, I have forced the stock grommet into place. Installed, it is badly puckered where it straddles the north-south pedal grooves while the tallest part of the installed grommet is the sharp corner of the grommet (the sides and top of the grommet meet at fully 90 degrees). It is almost as thought the stock pieces are cut from tubing rather than the molded style that would clearly fit better.
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11-19-2014, 06:53 AM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
Quote:
Originally Posted by Bernica
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Went through their entire inventory and nothing. Of all the dimensions that I need, the most difficult to find is what the industry calls 'panel thickness' - essentially a grommet's groove that allows it to fit the 5/16" thickness of my pedal. |
11-19-2014, 07:28 AM
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CC Member
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Join Date: May 2006
Location: LAS VEGAS,
NV
Cobra Make, Engine: contemporary(2) one with 427 sohc and one with 427 center oiler
Posts: 491
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Not Ranked
I changed out the pedals on csx8967 with a set that I bought from David Wagner. These were machined and designed to pivot like the originals. These pedals have rubber grommets that were made to fit the pedals. He might be able to help you.
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11-19-2014, 08:21 AM
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CC Member
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Join Date: Sep 2002
Location: Phoenix,
AZ
Cobra Make, Engine: FFR: 302 w/aluminum heads, Edlebrock injection. Street car trim, no scoop, side pipes or rollbar.
Posts: 1,869
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Not Ranked
Mine wouldn't fit either. I just tossed 'em and have gone without, 8+ years now.
__________________
"Cobra-Cobra-bo-bobra, banana-fanna-fo-fobra, fe-fi-mo-mobra...Cobra!"
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11-19-2014, 08:51 AM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
Quote:
Originally Posted by Maricopa
Mine wouldn't fit either. I just tossed 'em and have gone without, 8+ years now.
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Giving this option some serious thought. I did find something that may be close from Zoro. Of course, you just can't buy four so if they work, I'll send you what you need. |
11-19-2014, 09:06 AM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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Not Ranked
Might want to give these guys a try...
Rubber Grommets
__________________
All that's stopping you now Son, is blind-raging fear.......
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11-19-2014, 11:04 AM
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CC Member
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Join Date: Jan 2001
Location: Cape Coral,
FL
Cobra Make, Engine: 2009 Solbra
Posts: 3,861
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Not Ranked
After lubing grab the grommet & give it a turn it will come back in shape & fit the opening just fine
__________________
Dan Wulff
I carry a gun because a cop is too heavy.
(No doubt, most will blame it on the donuts.)
You're just jealous because the voices only talk to me
Earth is the insane asylum for the universe.
The gene pool could use a little chlorine.
The original point and click interface was a Smith & Wesson.
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11-19-2014, 07:18 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
I have used a counterbore tool on the front and back of the pedal pads. It makes the pedal the right thickness for the grommet and it gives the grommet a recess to sit inside making it actually last and work for a while. It also makes the grommets easier to install. I have a big bag of the grommets.
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11-19-2014, 07:32 PM
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CC Member
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Join Date: Nov 2000
Location: Flower Mound, TX,
tx
Cobra Make, Engine: Lonestar LS 427, Keith Craft 501,Toploader
Posts: 883
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Not Ranked
Its much easier to change the pedal than chase down an odd size grommet.
__________________
" It ain't no big deal" 
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11-25-2014, 06:31 PM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
Not there yet but I ordered grommets from Zoro.com. Pretty close. I got a grommet with a 3/8" groove while the pedal is 5/16". The company has grommets with 1/8" grooves and the the one oddball that I bought with that 3/8" groove. Although these could be Mickey Moused to work, I'd sure like the same model with a 5/16" groove. Interestingly (for me), I was able to fit this new grommet into the pedal with fingers only and no water or lubricant of any sort - shows how impossibly wrong the grommets supplied with the pedals were.
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11-25-2014, 06:50 PM
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Senior Club Cobra Member
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Join Date: Feb 2005
Posts: 651
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Not Ranked
Quote:
Originally Posted by SPF2948
Not there yet but I ordered grommets from Zoro.com. Pretty close. I got a grommet with a 3/8" groove while the pedal is 5/16". The company has grommets with 1/8" grooves and the the one oddball that I bought with that 3/8" groove. Although these could be Mickey Moused to work, I'd sure like the same model with a 5/16" groove. Interestingly (for me), I was able to fit this new grommet into the pedal with fingers only and no water or lubricant of any sort - shows how impossibly wrong the grommets supplied with the pedals were.
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I'd like to get the Z# of that grommet from you.
David |
11-25-2014, 07:03 PM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
Quote:
Originally Posted by 601HP
I'd like to get the Z# of that grommet from you.
David
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How many do you need? |
11-25-2014, 07:16 PM
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Senior Club Cobra Member
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Join Date: Feb 2005
Posts: 651
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Not Ranked
Quote:
Originally Posted by SPF2948
How many do you need?
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4.
David |
11-26-2014, 12:58 AM
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CC Member
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Join Date: Jun 2013
Location: Foxborough,
MA
Cobra Make, Engine: 2010 Superformance; Roush 427 SR
Posts: 49
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Not Ranked
Quote:
Originally Posted by 601HP
I'd like to get the Z# of that grommet from you.
David
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3MRJ8
" Product Description. Rubber Grommet, Oil Resistant, Military Specification, Buna-N/Nitrile Rubber, Inside Dia. (A) 3/8 In, Outside Dia. (B) 3/4 In, Overall Thickness (C) 3/4 In, Panel Thickness (D) 3/8 In, Panel Hole Dia. (E) 9/16 In, AN 931 Number 930-3, Black, Min. Temp. Rating -35 Deg. F, Max. Temp. 225 F, Durometer 50A +/- 5, Elongation 300%, Tensile Strength 870 PSI, Standards ASTM D2000 2BG506, Package Quantity 25 "
25 pieces are about $15 shipped.
For these to fit properly, you'd have to chase the existing pedal holes out to 1/2" (the existing holes are almost there already). The grommet groove needs to be shimmed which could be solved with a washer or some JB Weld or ... |
11-26-2014, 04:09 AM
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Senior Club Cobra Member
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Join Date: Feb 2005
Posts: 651
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Not Ranked
Quote:
Originally Posted by SPF2948
3MRJ8
" Product Description. Rubber Grommet, Oil Resistant, Military Specification, Buna-N/Nitrile Rubber, Inside Dia. (A) 3/8 In, Outside Dia. (B) 3/4 In, Overall Thickness (C) 3/4 In, Panel Thickness (D) 3/8 In, Panel Hole Dia. (E) 9/16 In, AN 931 Number 930-3, Black, Min. Temp. Rating -35 Deg. F, Max. Temp. 225 F, Durometer 50A +/- 5, Elongation 300%, Tensile Strength 870 PSI, Standards ASTM D2000 2BG506, Package Quantity 25 "
25 pieces are about $15 shipped.
For these to fit properly, you'd have to chase the existing pedal holes out to 1/2" (the existing holes are almost there already). The grommet groove needs to be shimmed which could be solved with a washer or some JB Weld or ... |
My pedals are 1/4" thick, and the existing hole dia. is 1/2". These grommets are a close fit.
Thank you for the info.
David |
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