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Author Topic: Bolt torque on Golden Rod  (Read 1412 times)

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Offline MRieck

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Bolt torque on Golden Rod
« on: July 28, 2014, 12:51:26 PM »
Is it 24 lbs?
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Offline kmb69

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Re: Bolt torque on Golden Rod
« Reply #1 on: July 28, 2014, 02:32:00 PM »
That sounds too high to me for aluminum but I don't know what is recommended.
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Bolt torque on Golden Rod
« Reply #2 on: July 28, 2014, 04:27:48 PM »
Michael, don't tell me YOU are using old stuff?!
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Offline cbr954

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Re: Bolt torque on Golden Rod
« Reply #3 on: July 28, 2014, 04:39:58 PM »
Two articles I found says they are torqued to 30 ft/lbs.
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Offline MRieck

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Re: Bolt torque on Golden Rod
« Reply #4 on: July 28, 2014, 07:31:48 PM »
Quote from: cbr954 on July 28, 2014, 04:39:58 PM
Two articles I found says they are torqued to 30 ft/lbs.
Thanks but I cannot get Carrillo bolts to 30lbs and they are steel. I'm thinking 22 or so....somebody must have the original sheet.
« Last Edit: July 29, 2014, 11:41:46 AM by MRieck »
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Offline Retro Rocket

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Re: Bolt torque on Golden Rod
« Reply #5 on: July 28, 2014, 09:17:38 PM »
Just dug out my old RC catalogs Mike but no torque specs in it...Sorry... ;)
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Offline City Boy

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Re: Bolt torque on Golden Rod
« Reply #6 on: July 29, 2014, 05:17:34 AM »
Hi guys.I have the torque specs at home that came with my rods.Unfortunately I am out of town for 3 days.I will report back as soon as I am home if that will help. Cheers
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Offline MRieck

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Re: Bolt torque on Golden Rod
« Reply #7 on: July 29, 2014, 05:49:18 AM »
Quote from: City Boy on July 29, 2014, 05:17:34 AM
Hi guys.I have the torque specs at home that came with my rods.Unfortunately I am out of town for 3 days.I will report back as soon as I am home if that will help. Cheers
Thanks
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Offline Bill/BentON Racing

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Re: Bolt torque on Golden Rod
« Reply #8 on: July 29, 2014, 11:00:17 AM »
Well, it does seem high, but here it is in black and white!  ;D Bill
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Offline MRieck

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Re: Bolt torque on Golden Rod
« Reply #9 on: July 29, 2014, 11:40:08 AM »
I have that article Bill.....it also shows the application of Loctite (or similiar product) on the rod bolt threads. I have seen never that done either. Max torque on a Carrillo 5/16 WMC bolt is 30lbs. The multiphase bolt is 40 lbs. I have found an ARP2000 bolt the can replace the original RC bolt but max torque on that is about 28lbs. All those values are with bolt lube.
 I guess I can measure stretch which I am guessing is in the .004 to .006 range. I want to check the big end bores and make sure they are concentric before going through the shenanigans of drilling the lower bearing.
« Last Edit: July 29, 2014, 11:47:28 AM by MRieck »
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Offline Old Scrambler

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Re: Bolt torque on Golden Rod
« Reply #10 on: July 29, 2014, 01:02:25 PM »
Tech-inspectors will not accept a magazine article as proof of ANYTHING ;D
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Offline Bill/BentON Racing

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Re: Bolt torque on Golden Rod
« Reply #11 on: July 29, 2014, 04:19:46 PM »
That's right. Not from the horse's mouth! Better to have original paperwork specs for sure. Bill
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Offline Sam Green Racing

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Re: Bolt torque on Golden Rod
« Reply #12 on: July 29, 2014, 08:33:47 PM »
Quote from: Jerry Rxman Griffin aka MuthaF'er on July 28, 2014, 04:27:48 PM
Michael, don't tell me YOU are using old stuff?!

 ;D ;D ;D ;D ;D ;D sorry Murphy, I just had to. ;D ;D ;D

Sam. ;)
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Offline Big Jay

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Re: Bolt torque on Golden Rod
« Reply #13 on: July 29, 2014, 11:55:24 PM »
I had a set in here that had SPS bolts. If that is what you have, it will be around 30 lbs. But to be safe, I would go with .005' / .006" stretch.
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Offline City Boy

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Re: Bolt torque on Golden Rod
« Reply #14 on: August 01, 2014, 08:00:43 PM »
Hi guys.Back home.I have checked my instruction sheet.RC advises to drill the bearing with a #10 drill,oil or asembly lube on bolts,chamfered side of rod bolt washers to face bolt head,torque to 28ft/lb.Bolts are listed as grade 8 aircraft.Last line is warning to fully warm engine before use,especially in the case of alloy rods.Hope this helps.
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Offline Old Scrambler

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Re: Bolt torque on Golden Rod
« Reply #15 on: August 02, 2014, 12:55:47 PM »
Now we see that the REAL specs are a lot more involved than the magazine scribe relayed to the public...............Thanks City Boy :) Maybe this bit of info should be 'archived' some place.
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Dennis in Wisconsin
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Offline Bill/BentON Racing

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Re: Bolt torque on Golden Rod
« Reply #16 on: August 05, 2014, 04:11:17 AM »
It was.....in me gray matter now! I memorized that and wrote it down! Big thanks Jay, missed y'all this weekend. I imagine you'll make November? Hope so, Bill ;D
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