Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: skegbyjohn on 23 May 2011, 20:21:58

Title: erratic rev counter '98 2.5td
Post by: skegbyjohn on 23 May 2011, 20:21:58

 >:(can anyone help me? .the rev counter on my 2.5td cd estate seems to have a mind of its own. In normal driving when i accelerate the counter drops to zero. When i take my foot off the pedal the needle jumps to where it should be. Could it be a bad earth and if so where? I recently renewed the glowplugs and for a few days everything went back to norma. Thats what makes me think its a bad earthcaa

Title: Re: erratic rev counter '98 2.5td
Post by: Brikhead on 24 May 2011, 11:34:40

Where does the rev counter gets it's signal from? diesels can use the crank sensor, alternator or possibly from elsewhere...
You need somebody with more experience to reply!

Title: Re: erratic rev counter '98 2.5td
Post by: Omegatoy on 24 May 2011, 19:03:34

pretty sure the 2.5 gets signal form alternator but i stand to be corrected!!  :y

damn hit button before i had finished, so the fault could be the alternator belt slipping when throttle first applied? could well point to a worn belt or a sticky tensioner?

Title: Re: erratic rev counter '98 2.5td
Post by: skegbyjohn on 25 May 2011, 07:52:30

 :ythanks, I'll change the drive belt and check the alternator connections. Will send a post if that works!

Title: Re: erratic rev counter '98 2.5td
Post by: unlucky alf on 26 May 2011, 00:08:49

I take it you are in Skegby which aint to far from me, so if you have no joy ive got a spare TD dash you could try to eliminate the clock itself. :y

Title: Re: erratic rev counter '98 2.5td
Post by: skegbyjohn on 02 June 2011, 21:39:41

 :(Thanks, the new belt did nothing . The dial seems to be working spasmodically which still makes me think its a bad connection. Question is where could it be ?