Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Search the maintenance guides for answers to 99.999% of Omega questions

Pages: [1] 2 3 4 5 6 7 8 ... 42   Go Down

Author Topic: Engine noise, terminal?  (Read 39102 times)

0 Members and 1 Guest are viewing this topic.

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 94722
  • Ah, the Silver Bullet
    • Jaaaaaaaag
    • View Profile
Engine noise, terminal?
« on: 01 March 2010, 09:21:24 »

My poor, beloved MV6 has developed a very worrying noise from the engine. Sounds very metallic, almost like a lifter but much, much louder, and probably double the frequency.

This happened during an LPG conversion at the weekend with Kevin Wood and Chrisgixer. The only parts of the engine that were touched were the inlets and the cooling system rerouted.

Difficult to pinpoint the noise to either bank, sounds more like its coming from under plenum, but at a loss as to what it could be?

The car starts OK, and idles at a steady fast idle as expected, except the noise.  No oil light.  No tried increasing revs, as it really doesn't sound good.

Aux belt currently off the crank pulley to eliminate anything that runs.

I have had to leave the car at Kevin Wood's house, as with that noise, I don't think it would make it out of the village, let alone the trip home  :'(


Any places to start?
Logged
I don't tolerate bickering, and I'm always grumpy.
And Lizzie Zoom says I'm a heartless bastid...and she's absolutely correct!

tunnie

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Surrey
  • Posts: 35843
    • 3.2 Elite & Zafira Tourer
    • View Profile
Re: Engine noise, terminal?
« Reply #1 on: 01 March 2010, 09:32:39 »

similar to the noise my 2.2 had a while back? Cambelt tensioner?
Logged
Got a VW, Audi, Skoda or Seat? I have full Diagnostic software VCDS to read and program your car. Need something enabling? Perhaps full diagnostic? Drop me a PM. Can diagnose in Camberley or Osterley Area.

tunnie

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Surrey
  • Posts: 35843
    • 3.2 Elite & Zafira Tourer
    • View Profile
Re: Engine noise, terminal?
« Reply #2 on: 01 March 2010, 09:33:02 »

also i don't need my car until Wednesday if you need wheels....
Logged
Got a VW, Audi, Skoda or Seat? I have full Diagnostic software VCDS to read and program your car. Need something enabling? Perhaps full diagnostic? Drop me a PM. Can diagnose in Camberley or Osterley Area.

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 94722
  • Ah, the Silver Bullet
    • Jaaaaaaaag
    • View Profile
Re: Engine noise, terminal?
« Reply #3 on: 01 March 2010, 09:35:00 »

Quote
similar to the noise my 2.2 had a while back? Cambelt tensioner?
That though had crossed our minds, but cambelt area not touched.  Big end failure had crossed Kevin Wood's mind, but that again would have to be coincidental ?
Logged
I don't tolerate bickering, and I'm always grumpy.
And Lizzie Zoom says I'm a heartless bastid...and she's absolutely correct!

feeutfo

  • Guest
Re: Engine noise, terminal?
« Reply #4 on: 01 March 2010, 09:36:35 »

is it the injectores rattling on the metal plate on plenum? they make a hell of a racket for injectors,  when new, and are rubber mounted usually..?

please god nothing fell down the inlet, but you say its not cylinder specific?
Logged

tunnie

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Surrey
  • Posts: 35843
    • 3.2 Elite & Zafira Tourer
    • View Profile
Re: Engine noise, terminal?
« Reply #5 on: 01 March 2010, 09:38:11 »

Quote
Quote
similar to the noise my 2.2 had a while back? Cambelt tensioner?
That though had crossed our minds, but cambelt area not touched.  Big end failure had crossed Kevin Wood's mind, but that again would have to be coincidental ?

No work was done on my engine when it started making that noise, it just happened one morning. Worth taking cambelt cover off and using that listening stick used on mine...
Logged
Got a VW, Audi, Skoda or Seat? I have full Diagnostic software VCDS to read and program your car. Need something enabling? Perhaps full diagnostic? Drop me a PM. Can diagnose in Camberley or Osterley Area.

Jimbob

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Chester / Flintshire
  • Posts: 23940
  • I like traffic lights, but only when they're green
    • 3.2 MV6 Est, 1.9 Zafira
    • View Profile
Re: Engine noise, terminal?
« Reply #6 on: 01 March 2010, 09:38:28 »

Doesnt sound good  :'(

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 94722
  • Ah, the Silver Bullet
    • Jaaaaaaaag
    • View Profile
Re: Engine noise, terminal?
« Reply #7 on: 01 March 2010, 09:43:56 »

Quote
is it the injectores rattling on the metal plate on plenum? they make a hell of a racket for injectors,  when new, and are rubber mounted usually..?

please god nothing fell down the inlet, but you say its not cylinder specific?
I was late last night (like gone midnight), but we're both considering the possibility of a foreign object in No1.  Compression tests were not hopeful  :'(, but hoping it was just borewash, and the real problem is elsewhere, and not terminal.
Logged
I don't tolerate bickering, and I'm always grumpy.
And Lizzie Zoom says I'm a heartless bastid...and she's absolutely correct!

feeutfo

  • Guest
Re: Engine noise, terminal?
« Reply #8 on: 01 March 2010, 09:44:00 »

Quote
Quote
similar to the noise my 2.2 had a while back? Cambelt tensioner?
That though had crossed our minds, but cambelt area not touched.  Big end failure had crossed Kevin Wood's mind, but that again would have to be coincidental ?
big end type noise? not injecters then.
Logged

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 94722
  • Ah, the Silver Bullet
    • Jaaaaaaaag
    • View Profile
Re: Engine noise, terminal?
« Reply #9 on: 01 March 2010, 09:45:22 »

Additional info, this noise only appears when the car actually starts. Just cranking over buy disconnecting the crank sensor, the noise cannot be heard.  I am hoping this is a good sign...
Logged
I don't tolerate bickering, and I'm always grumpy.
And Lizzie Zoom says I'm a heartless bastid...and she's absolutely correct!

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 94722
  • Ah, the Silver Bullet
    • Jaaaaaaaag
    • View Profile
Re: Engine noise, terminal?
« Reply #10 on: 01 March 2010, 09:46:08 »

Quote
Quote
Quote
similar to the noise my 2.2 had a while back? Cambelt tensioner?
That though had crossed our minds, but cambelt area not touched.  Big end failure had crossed Kevin Wood's mind, but that again would have to be coincidental ?
big end type noise? not injecters then.
LPG ECU has no power currently.
Logged
I don't tolerate bickering, and I'm always grumpy.
And Lizzie Zoom says I'm a heartless bastid...and she's absolutely correct!

Fuse 19

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 31770
  • Git!
    • View Profile
Re: Engine noise, terminal?
« Reply #11 on: 01 March 2010, 09:46:37 »

Big end is a very deep knock....pretty obvious.

Foreign object down the inlet.....causing valve to stick.

Was it idling smoothly ?
Logged

tunnie

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Surrey
  • Posts: 35843
    • 3.2 Elite & Zafira Tourer
    • View Profile
Re: Engine noise, terminal?
« Reply #12 on: 01 March 2010, 09:47:02 »

bore wash, did not drill manifold in place did you?  ::)   :P

Was going to suggest something in the waterpump, but the aux belt is off. My money is still on cambelt tensioner
Logged
Got a VW, Audi, Skoda or Seat? I have full Diagnostic software VCDS to read and program your car. Need something enabling? Perhaps full diagnostic? Drop me a PM. Can diagnose in Camberley or Osterley Area.

Fuse 19

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 31770
  • Git!
    • View Profile
Re: Engine noise, terminal?
« Reply #13 on: 01 March 2010, 09:47:43 »

Well, its clear you need to check and work through the basics.........
Logged

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 94722
  • Ah, the Silver Bullet
    • Jaaaaaaaag
    • View Profile
Re: Engine noise, terminal?
« Reply #14 on: 01 March 2010, 09:49:08 »

Quote
Big end is a very deep knock....pretty obvious.

Foreign object down the inlet.....causing valve to stick.

Was it idling smoothly ?
Idle was steady at 1100 rpm which is about right for fast idle on that car (it was bloody cold, and we never ran it for more than about 10s at any time - probably tried it 3 or 4 times trying to pinpoint the noise (eg removing aux belt etc))
Logged
I don't tolerate bickering, and I'm always grumpy.
And Lizzie Zoom says I'm a heartless bastid...and she's absolutely correct!
Pages: [1] 2 3 4 5 6 7 8 ... 42   Go Up
 

Page created in 0.094 seconds with 16 queries.