Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Sir Tigger KC on 10 April 2012, 15:43:23

Title: Miss Fire..
Post by: Sir Tigger KC on 10 April 2012, 15:43:23
I've had a miss fire lately that's been steadly getting worse.  :(  She starts, ticks over, and generally runs fine, but has tended to splutter when I plant my foot down!  ???

There's abit of an oil leak so I thought that a cam cover was leaking.  However I've stripped it down and there's no oil in the plug wells and the cam covers are dry around the outside seals.  :-\

I changed the dispack last year after there was a leak in the scuttle, but thats all dry now so I think thats OK..  ::) and I've got a new set of leads and plugs to put in.   :)

The plugs don't seem to be in very tight though and I'm wondering if she's losing compression when driven hard, causing the splutter  :-\
Title: Re: Miss Fire..
Post by: dbug on 10 April 2012, 15:51:57
Misfire normally ignition related - plugs, points and diss pack.

As you've changed diss pack (genuine Vx or Bosch? - asuming OK) next point of call would be change plugs, tightening up to recommended torque.

If still missing likely to be plug lead(s) - are they tightly connected to plugs and disspack?

HTH
Title: Re: Miss Fire..
Post by: Sir Tigger KC on 10 April 2012, 17:22:45
The dis pack I fitted last year was a pattern one....  ???

New leads and plugs going in!!  :y
Title: Re: Miss Fire..
Post by: dbug on 10 April 2012, 17:47:23
The dis pack I fitted last year was a pattern one....  ???

New leads and plugs going in!!  :y

May well be ok but at this stage I wouldn't be 100% sure of it  ???
Title: Re: Miss Fire..
Post by: Sir Tigger KC on 11 April 2012, 15:51:30
I decided to 'whip out' the dispack to have a look and it was wet, but no signs of corrosion, so hopefully it's OK!  ::) :-\

I'm going to fill all the recesses on the top of the dispack with silicone, so hopefully any wet that gets in will run off.....  ??? :-\

Last time I replaced the scuttle I put enough silicon around it to seal the Titanic.... Not good enough evidently!!  :(

Title: Re: Miss Fire..
Post by: Sir Tigger KC on 12 April 2012, 23:01:51
Put it all back together, turned the key and now she's running like a box of nails!!  :'( Bugger!!  >:(
Title: Re: Miss Fire..
Post by: The Red Baron on 12 April 2012, 23:18:16
I decided to 'whip out' the dispack to have a look and it was wet, but no signs of corrosion, so hopefully it's OK!  ::) :-\

I'm going to fill all the recesses on the top of the dispack with silicone, so hopefully any wet that gets in will run off.....  ??? :-\

Last time I replaced the scuttle I put enough silicon around it to seal the Titanic.... Not good enough evidently!!  :(

shame they didnt have any in 1912.  ::)
Title: Re: Miss Fire..
Post by: HockeyDave55 on 12 April 2012, 23:31:16
Put it all back together, turned the key and now she's running like a box of nails!!  :'( Bugger!!  >:(
How are the plugs and leads? Is there any oil in the spark plug holes???
Title: Re: Miss Fire..
Post by: Sir Tigger KC on 12 April 2012, 23:36:49
New plugs and leads! There's something not put back right and I can't think what! I'm probably going to have to strip it all down again...... What a bloody PITA!!!  :(
Title: Re: Miss Fire..
Post by: Sir Tigger KC on 13 April 2012, 12:17:44
I've just done the paperclip and I'm getting code 19, which is 'incorrect rpm signal'....

Anyone know what causes this? Just so I've an idea what I've done!!  ::)

Thanks  :)
Title: Re: Miss Fire..
Post by: RobG on 13 April 2012, 12:53:50
I've just done the paperclip and I'm getting code 19, which is 'incorrect rpm signal'....

Anyone know what causes this? Just so I've an idea what I've done!!  ::)

Thanks  :)
Crank sensor
Title: Re: Miss Fire..
Post by: Sir Tigger KC on 13 April 2012, 13:45:16
I've just done the paperclip and I'm getting code 19, which is 'incorrect rpm signal'....

Anyone know what causes this? Just so I've an idea what I've done!!  ::)

Thanks  :)
Crank sensor

Would an iffy crank sensor have caused the original missfire?  I'm not sure that I unplugged it, might have tho and might not have replugged it....
Title: Re: Miss Fire..
Post by: Sir Tigger KC on 13 April 2012, 15:08:19
Hell!! Just spoken to the local dealer and a crankshaft sensor is £67 or £91 + VAT depending which one I need!!

Do these tend to go suddenly? or is there a deterioration?  Would something I've done kill it?  ???