Knock Off Nut Torque

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horner
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Knock Off Nut Torque

Post by horner » Wed Oct 08, 2008 8:49 am

Esp. w/ reference to Ricambi's new tool, I searched unsuccessfully for the correct knock off nut torque setting for our Series II s/n 8325. Does not mean that the info is not directly in front of me. Anyone know where to find the answer? I tried the 'search' function here and at Kerry's site. Thx, LJH
Jack Horner, 1966 330 GT 2+2 Series II, s/n 8325 (x-1981 Mondial 8, s/n 36213)

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gsjohnson
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Re: Knock Off Nut Torque

Post by gsjohnson » Wed Oct 08, 2008 9:11 am

horner wrote:Esp. w/ reference to Ricambi's new tool, I searched unsuccessfully for the correct knock off nut torque setting for our Series II s/n 8325. Does not mean that the info is not directly in front of me. Anyone know where to find the answer? I tried the 'search' function here and at Kerry's site. Thx, LJH
I bought the same Hill Engineering knock off tool from Ricambi as well. I got tired of dinging up my deep dish Borannis everytime I took them on and off. Especially now, since I sent them out and had them professionally refinished. When I dinged my first one after the re-polish, I was pissed and bought the tool. I did a search on F-chat and everyone quoted torquet numbers from 325 to 350 ft lbs. Some stating they were quoting out of the shop manual. I found that difficult to believe, especially since most 3/4" drive torque wrenches only go to 300 lbs. The best advice I saw was tightening them as much as possible by hand (I'd step on the breaker bar with my whole weight), drive the car a couple of blocks and repeat the procedure. It has worked for me without any hiccups and I have had my Borranis on and off at least 4 or 5 times. Hope this helps.
GS
1965 330 GT 2+2 Interim
S/N 6997

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Yale
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Post by Yale » Wed Oct 08, 2008 9:41 am

Jack Horner lives!
Ex - 1964 330GT #6097
1963 Abarth Monomille
1970 Porsche 911S
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horner
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Post by horner » Wed Oct 08, 2008 12:53 pm

Thank you, GS; and yes, Yale, I'm still on this side of the dirt, and the torque answer is ... ? :) LJH
Jack Horner, 1966 330 GT 2+2 Series II, s/n 8325 (x-1981 Mondial 8, s/n 36213)

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tyang
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Post by tyang » Wed Oct 08, 2008 8:36 pm

Hi Jack,

Welcome back.

I tried my new knock off tool with a handle and tried to get an idea of the torque. I tightened the knock off with the tool, and then tried to see if my knock off hammer would tighten it any more. It takes a lot of force.

Bill Pollard's shop uses one of the other brand knock off tool and it literally requires a person to stand on the wrench with one foot.

Tom
'63 330 America #5053

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330GT
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Post by 330GT » Wed Oct 08, 2008 9:11 pm

325 ft. lbs. I have a 4' long 3/4" torque wrench that goes to 600 ft. lbs. Quite daunting, particularly if it slips off the knock-off.
Image
Last edited by 330GT on Thu Oct 09, 2008 8:37 am, edited 1 time in total.
Regards, Kerry
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gsjohnson
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Post by gsjohnson » Wed Oct 08, 2008 9:16 pm

330GT wrote:325 ft. lbs. I have a 4' long 3/4" torque wrench that goes to 600 ft. lbs. Quite daunting, particularly if it slips off the knock-off.
Image
Okay Kerry, I give. Where did you find that torque wrench and how much was it?
GS
1965 330 GT 2+2 Interim
S/N 6997

Rudy van Daalen Wetters
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Post by Rudy van Daalen Wetters » Wed Oct 08, 2008 10:51 pm

Give me back that lead hammer! How else can you get even
with a car that you share a love/hate relationship with?

Rudy van Daalen Wetters
1963 GTE s/n 4001
1966 330 GT s/n 8705

xs10shl
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Post by xs10shl » Thu Oct 09, 2008 1:02 am

300+ ft lbs is a pretty ridiculous torque setting - I think you are probably safe with anything remotely resembling "Fully Tight", and leave it at that.

horner
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Post by horner » Thu Oct 09, 2008 8:16 am

Thanks to all for your comments, experiences, and photos. I'll need to go down to our Fire House to find a 300+ torque wrench. Better yet, leave it to the professionals. I will tell the few local experts, other than the obvious Francois/Tom team, to look into the Ricambi tool and cross reference this site. Thx again, LJH

PS Yale, you are a brave lad driving 45 miles from Stamford to NYC on a jump start.
Jack Horner, 1966 330 GT 2+2 Series II, s/n 8325 (x-1981 Mondial 8, s/n 36213)

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330GT
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Post by 330GT » Thu Oct 09, 2008 8:36 am

gsjohnson wrote:Okay Kerry, I give. Where did you find that torque wrench and how much was it?
I found it on eBay, can't remember how much it was. Probably not too accurate, but at that value, a couple of pounds off doesn't matter much.
Regards, Kerry
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8339
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Post by 8339 » Thu Oct 09, 2008 8:38 am

A couple of things to consider, I have had wheel nuts on Ferraris so tight that even with pipes on flex handles were a problem getting them off. Hammering on the wheel nut can apply too much torque and it's never equal wheel to wheel. If you take a 1/2 inch torque wrench and extend the length out from the square drive by 12 inches you effectively double the torque of the torque wrench. So, your 1/2 inch torque wrench set at 150 ft/lbs will now aply 300 ft/lbs of torque on the wheel nut. 300 ft/lbs is in my humble opinion and experience is correct for the wheel nuts. If you look at any torque tightening chart, even a 20mm nut or bolt can be torqued to 309 ft/lbs. Oh yeah make sure you use anti-seize not only on the on cone at the base of the hub but also on the taper inside the wheel nut. If I can ever figure out how to add an article on my website, I hope to have plans for making a wheel nut tool that's not expensive and works extremely well. I have made them for my shop and have never had a problem with them.

Richard Garre, Radcliffe Motorcar Company.

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330GT
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Post by 330GT » Thu Oct 09, 2008 8:42 am

xs10shl wrote:300+ ft lbs is a pretty ridiculous torque setting - I think you are probably safe with anything remotely resembling "Fully Tight", and leave it at that.
I used to use a 5 lb dead blow hammer with nylon faces. I would tighten the knock-off as much as possible, but it would always loosen. The next time I would check, I could tighten it more.

Since using the torque wrench, it never loosens.
Regards, Kerry
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Yale
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Post by Yale » Thu Oct 09, 2008 12:22 pm

horner wrote: PS Yale, you are a brave lad driving 45 miles from Stamford to NYC on a jump start.
Well Jack I was a bit trepedatious in the beginning but what really scared me was that I was clocked by laser at 87 on the Taconic going to Tom's, yeesh and if I did get caught again going south.... not being able to start the car would not be my largest problem. Best, Yale
Ex - 1964 330GT #6097
1963 Abarth Monomille
1970 Porsche 911S
1974 BMW 2002turbo

xs10shl
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Post by xs10shl » Fri Oct 10, 2008 2:46 am

330GT wrote:
xs10shl wrote:300+ ft lbs is a pretty ridiculous torque setting - I think you are probably safe with anything remotely resembling "Fully Tight", and leave it at that.
I used to use a 5 lb dead blow hammer with nylon faces. I would tighten the knock-off as much as possible, but it would always loosen. The next time I would check, I could tighten it more.

Since using the torque wrench, it never loosens.
That is an odd experience - almost sounds like your wheel hubs are reversed. I can only say that I've never had this problem when using a lead hammer, but that does not mean that my method works for everyone. I'm sure one of these day's I'll miss the knock-off, and hit the rim, and then I'll reconsider my routine! :^)

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