Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please play nicely.  No one wants to listen/read a keyboard warriors rants....

Pages: 1 2 3 [4]  All   Go Down

Author Topic: Plenum Bolts Torque  (Read 5279 times)

0 Members and 1 Guest are viewing this topic.

JamesV6CDX

  • Omega Queen
  • *****
  • Offline Offline
  • Gloucestershire/Buckinghamshire
  • Posts: 16640
    • Omega 3.2 Retail MV6 LPG
    • View Profile
Re: Plenum Bolts Torque
« Reply #45 on: 27 October 2011, 16:10:21 »
Quote from: amba on 27 October 2011, 15:49:11
Well as my internet was down during my refit >:(,and I didnt have the benefit of the knowledgeable ones advise :y I have torqued them down to 20nm which seemed consistant with the injector manifold and sandwich plate. :D

In the real world, it's unlikely to do any harm  :y
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107061
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Plenum Bolts Torque
« Reply #46 on: 27 October 2011, 18:08:33 »
Like it or not, the official value is 8Nm.

Its just tight enough to seal the 6 o rings, without crushing them to buggery
Logged
Grumpy old man

JamesV6CDX

  • Omega Queen
  • *****
  • Offline Offline
  • Gloucestershire/Buckinghamshire
  • Posts: 16640
    • Omega 3.2 Retail MV6 LPG
    • View Profile
Re: Plenum Bolts Torque
« Reply #47 on: 27 October 2011, 18:36:46 »
Quote from: TheBoy on 27 October 2011, 18:08:33
Like it or not, the official value is 8Nm.

Its just tight enough to seal the 6 o rings, without crushing them to buggery

Are you of the opinion that tightening them beyond that could damage the rings then TB?
Logged

feeutfo

  • Guest
Re: Plenum Bolts Torque
« Reply #48 on: 27 October 2011, 18:55:44 »
How can the o rings be crushed or damaged? They sit in a grove designed for that diameter o ring. Its not possible to crush them unless an o ring is unseated and gets trapped.

All the bolts have to do is compress the rubber to seal until the plenum is tight to the manifold. That takes 8nm to achieve. Any more is over tight for the purpose of squashing the o rings, obviously a bolt that size will take more, as will the thread in the inlet fanimould, although I would think that's the week point.

IMO just do em up, making sure the o rings remain seated correctly while locating the pegs. Far more important than a couple of "nums".

4 pages, Lordy!


Oh, I can believe the cam shaft caps are 8nm either. But they are! :)
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107061
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Plenum Bolts Torque
« Reply #49 on: 27 October 2011, 19:05:01 »
Quote from: JamesV6CDX on 27 October 2011, 18:36:46
Quote from: TheBoy on 27 October 2011, 18:08:33
Like it or not, the official value is 8Nm.

Its just tight enough to seal the 6 o rings, without crushing them to buggery

Are you of the opinion that tightening them beyond that could damage the rings then TB?
Not in the short term.

Given the depths of the grooves, probably not in the long term either.
Logged
Grumpy old man

amba

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Medway towns
  • Posts: 4827
    • German V6
    • View Profile
Re: Plenum Bolts Torque
« Reply #50 on: 27 October 2011, 20:54:05 »
So after 4 pages  ;D ;D ;D the definitive answer is 8nm  :y ; but if they were torqued down to 20nm that would still be fine  ;D :y

Anyway that is what I have done mine to  :)
Logged

Andy B

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 39785
    • ML350 TDM SmartRoadster
    • View Profile
Re: Plenum Bolts Torque
« Reply #51 on: 27 October 2011, 21:04:29 »
Quote from: amba on 27 October 2011, 20:54:05
So after 4 pages  ;D ;D ;D the definitive answer is 8nm  :y ; but if they were torqued down to 20nm that would still be fine  ;D :y

Anyway that is what I have done mine to  :)

split the difference with 14 ........  ::) ::) ;D ;D
Logged

amba

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Medway towns
  • Posts: 4827
    • German V6
    • View Profile
Re: Plenum Bolts Torque
« Reply #52 on: 27 October 2011, 22:14:39 »
Perhaps it would be nearer that with the accuracy of some torque wrenches  ;D ;D
Logged
Pages: 1 2 3 [4]  All   Go Up
« previous next »
 

Page created in 0.022 seconds with 18 queries.