Has anyone ever compiled a master torque values chart?

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NobleHops
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Has anyone ever compiled a master torque values chart?

Post by NobleHops »

As in title, I am wondering if anyone ever compiled all the torque values for the chassis nuts and bolts on the CBX? I did not find anyihing on the Google machine, nor searching here.
Nils Menten
Tucson, Arizona, USA '80 CBX, sort-of restored :-)

sixofsix
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Re: Has anyone ever compiled a master torque values chart?

Post by sixofsix »

Nils:
One rule. Suits all fasteners on the chassis.
I just tighten until it feels like it is coming loose again..and STOP.
No more.
That's the ctitical part.
Stop immediately when it just feels like it's coming loose again.
Your welcome.

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Re: Has anyone ever compiled a master torque values chart?

Post by Larry Zimmer »

General comment for audience at large: While this doesn't directly answer Nil's question, there are torque charts in each section of the shop manual for the important fasteners addressed in each section. As for a general overall torque chart, there is one on page 1-4 of the 81/82 shop manual. However, do note any torques specified in particular sections of the manual. General torque specs are for dry threads. Occasionally, lubed threads will be mentioned. Dry means dry.. Any oil on threads will change the torque affect by 5% to 15%. Could make the difference between a good joint or a yielded thread. {Cam bearing caps , particularly, come to mind here. And, exhaust pipe nuts. Smaller fasteners are more sensitive.)
Larry Zimmer
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Duffey Lake rd.
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Re: Has anyone ever compiled a master torque values chart?

Post by Duffey Lake rd. »

Here's what I've got on file, correct me if it's got some mistakes
You have to be extra careful with spark plugs, the oil pan, and the fork oil drain bolts.
As a rule, when in doubt finger-tighten and then do a 1/8 - 1/4 turn, if you set the torque wrenches wrong they will do more harm than good. I put a very tiny bit of grease on some screws and bolts for parts that I frequently remove.
-Scott

torque is critical, with oil on threads torque to the low end of scale
https://motorcyclemojo.com/2012/03/prop ... -critical/
https://www.lainefamily.com/images/Hond ... Manual.pdf
http://www.cbx.dk/Manual/r5cbx1000.pdf motor

https://www.manualslib.com/manual/10520 ... e=8#manual
- Aluminum brake banjo bolts 12-15 ft-lbs, set at 12 8/19, 13.5 9/3 2022 check banjo nuts
- rear master cylinder 8mm 7-10 ft-lbs 8.5 with 3/8 drive
- Stainless steel brake banjo bolts Torque specifications 15-17 ft. lbs
re-tighten banjo bolt nuts w pliers 9/3 2022
- Ohlins shocks 22 ft-lbs
- hex caliper brake bolts 22 ft-lbs
- rear master cyl 22 ft-lbs
- oil filter center bolt 20-24 22
- oil drain bolt 20-23 22
- oil pan bolts 6 X 25 5-8 ft-lbs set at 7 or = 84 in lbs
- rear axle nut 58-72
- drive sprocket 24-27
- spark plug 9-12 10
- fork drain bolt 6 mm bolt 5-8 ft-lbs set at 6.5

- exhaust flange nuts "Standard torque for 6mm bolt would apply: 8-10 Nm" or 5-8 ft-lbs
---
PAGE 5-0
- engine hanger hex bolts front top triangle 22-29 ft. lbs
mid-top triangle 13-18 ft. lbs
- oil cooler bracket 22-29 ft. lbs
- rear hanger bolts 65-72 ft. lbs
---
-- 1/4 " torque wrench use 1/4 in to 3/8 adapter
5 mm bolt 2.5-3.6 ft-lbs set at 3.0
6 mm bolt 5-8 ft-lbs set at 7 = 84 in-lbs
-- 1/4 or 3/8 " torque wrench
8 mm bolt 7-10 ft-lbs set at 8.5
-- 3/8 " torque wrench
10 mm bolt 17-22 ft-lbs
12 mm bolt 22-29 ft-lbs
14 mm engine bolt 65-72 ft-lbs
---
PAGE 13-0
Front Wheel Suspension
- front axle pinch bolts 13-18 ft-lbs set to 16 currently 19

--
PAGE 14-0
Rear Wheel Suspension
--
5-8 mm need 1/4 " torque wrench 20-200 inch-pounds
10-foot pound to inch pounds, the result is 120 inch-pounds
10-14 mm need 3/8 " torque wrench 10~80 Ft-Lb
--
https://www.lainefamily.com/images/Hond ... Manual.pdf
--
Last edited by Duffey Lake rd. on Tue Jun 27, 2023 5:29 pm, edited 1 time in total.

Larry Zimmer
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Re: Has anyone ever compiled a master torque values chart?

Post by Larry Zimmer »

Good mention in there, Duffey, as a guide if threads have any oil -- stay low. Especially small threads such as 6mm or less. For those, stay at the very minimum. This holds very true when working with aluminum castings. Typically, you can depend upon one thing with aluminum castings -- porosity! Helicoil, etc isn't fun or cheap.
One other comment: When tightening a fastener to a torque value, do not bother to check it once it has been tightened. If you want to re-check, first loosen the joint; then, re-tighten. Don't stop moving until you reach the desired torque. Otherwise, you will get false readings.
Larry Zimmer
cbxlarry@sbcglobal.net

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