Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 14th November 2019, 12:02   #1
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default Torque setting for small or odd items

What do people use to set the correct torque on numerically small and/or physically small, or odd items such as these:

  • Brake caliper bleed screw (5Nm)
  • Brake pipe union to brake hose (16Nm)
  • Brake hose bracket on trailing arm (?Nm)
  • ABS sensor cable to trailing arm nut (9Nm)
  • (Values shown are from Rave)
I've got an ordinary, full-length torque wrench and a smaller torque adapter but both of those will only go over the end of a nut/bolt. Some items need a torque spanner but most of the ones available don't go small enough (e.g. this one). Here's an adjustable link but I'm not sure I'd trust it on a brake union or bleed nipple due to the risk of rounding off the flats.
Blink is offline   Reply With Quote
Old 14th November 2019, 12:08   #2
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default

Here's the same adjustable on Amazon - https://www.amazon.co.uk/Neilsen-Tor...FH3AQVHS5NSJ60

Probably a good one but smallest head is 17mm - https://www.amazon.co.uk/Rothenberge...TF6EVYJMQ4N7J0
Blink is offline   Reply With Quote
Old 14th November 2019, 12:23   #3
macafee2
This is my second home
 
Rover 75 Saloon & Tourer

Join Date: Sep 2012
Location: Lincoln
Posts: 14,890
Thanks: 1,630
Thanked 3,032 Times in 2,181 Posts
Default

opps mis understood OP so I have deleted my reply
macafee2 is offline   Reply With Quote
Old 14th November 2019, 13:22   #4
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default

Quote:
Originally Posted by macafee2 View Post
opps mis understood OP so I have deleted my reply
Your reply was still relevant though for low torque nuts/bolts (but not for things like the brake pipe union, which needs a torque spanner).

I like the look of the Draper 5-22Nm - I'd buy one to go with its bigger brother* but £98 is a bit too pricey for me.

* I've got the Draper 30-210Nm but it's far too big for a lot of uses (which is why I bought the torque adapter). The scale is tricky to read as well.
Blink is offline   Reply With Quote
Old 14th November 2019, 16:35   #5
SD1too
Doesn't do things by halves
 
SD1too's Avatar
 
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,265
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
Default

Quote:
Originally Posted by Blink View Post
I like the look of the Draper 5-22Nm .... but £98 is a bit too pricey for me.
Good tools will last for your lifetime Simon, as well as saving you huge labour costs every time you use them.

Remember that saying: you'll remember the quality long after you've forgotten the price.

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Old 14th November 2019, 18:36   #6
Phil-T4
I really should get out more.......
 
Phil-T4's Avatar
 
MG ZT-T, Rover 75 Tourer

Join Date: Mar 2011
Location: Olney
Posts: 2,969
Thanks: 245
Thanked 1,088 Times in 657 Posts
Default

Another question you must ask yourself, if your that worried about accuracy, is "how will i get it calibrated every 6 months or yearly?"

If you're not that worried, don't bother and tighten them by "feel"

Last edited by Phil-T4; 14th November 2019 at 18:40..
Phil-T4 is offline   Reply With Quote
Old 14th November 2019, 19:26   #7
COLVERT
This is my second home
 
R75 Saloon.

Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
Default

Simply by feel.------Except cylinder head bolts by torque spanner.
COLVERT is offline   Reply With Quote
Old 15th November 2019, 01:56   #8
Rich in Vancouver
Gets stuck in
 
Rich in Vancouver's Avatar
 
MG ZT-T

Join Date: Jun 2016
Location: White Rock, BC on Canada's Pacific Coast
Posts: 844
Thanks: 338
Thanked 367 Times in 210 Posts
Default

I agree with Colvert. For smaller fasteners "Snug" is good.
When I worked in the trade back in the ol' days of the 70's and 80's
we generally only used torque wrenches for parts that required even fastening with multiple fasteners like cylinder heads and rod and main bearings or accuracy in tightening for precise parts as in gearbox bits.
I do find that I now own more torque wrenches than I did when I made my living with them. Mind you, a KV6 is quite a bit more complex than a B or A-series engine!
__________________
ZT-T190, Anthracite, LHD, Left the Line on June 24, 2002,
Sold new in Switzerland, spent time in Germany, Imported to Canada in September 2021
Rich in Vancouver is offline   Reply With Quote
Old 15th November 2019, 08:51   #9
Blink
Posted a thing or two
 
Blink's Avatar
 
Rover 75 Saloon

Join Date: Apr 2019
Location: Under the car
Posts: 1,840
Thanks: 210
Thanked 244 Times in 221 Posts
Default

Brake bleed nipples are the ones I worry about most when tightening by feel - too loose and brake fluid goes everywhere, too tight and they can snap off or mess up the seating surface in the calipers. I have no idea at all what 5Nm (post 1) feels like.
Blink is offline   Reply With Quote
Old 15th November 2019, 21:35   #10
roverbarmy
This is my second home
 
roverbarmy's Avatar
 
Roverless + 1.7D Sportage

Join Date: Aug 2014
Location: East Norfolk
Posts: 7,022
Thanks: 729
Thanked 2,021 Times in 1,449 Posts
Default

5Nm is just over 3.5 lbs ft. That means 3.5 pounds of pull on a foot long spanner. 3.5 pounds is less than 2 kilos (think of holding 2 x kilo bags of sugar). When you've stripped or snapped a few, you get the feel for it!!!
__________________
Oil in my veins!
roverbarmy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 13:06.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd