Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: andyc on 23 January 2008, 10:17:52

Title: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: andyc on 23 January 2008, 10:17:52

Tunrs out that the harness to the power sounder wasn't routed correctly and had been trapped by the top shock mount, wore through and caused all manner of probles.

Just throught i'd share this with you

Cheers
Andy

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: hotel21 on 23 January 2008, 10:21:20

Good stuff.  Glad you got it sorted.....   :y

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: Jimbob on 23 January 2008, 10:22:22

Bet that took some finding  :y

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: Kevin Wood on 23 January 2008, 10:22:35

Ahh, :o

I really don't like the wiring of the supplies to the power sounder. They are poxy wires and only fused by one of the 80 amp PDS fuses (if fitted - only on later cars). I remember seeing a couple of Omegas that had caught fire where the problem looks to have originated in this area too :o

Sounds to me like the switched and unswitched supplies shorted together :o

Kevin

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: Dazzler on 23 January 2008, 10:27:58

Sounds like that could have been nasty Andy, well found. :y

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: Pitchfork on 23 January 2008, 11:05:18

Quote

Ahh, :o

I really don't like the wiring of the supplies to the power sounder. They are poxy wires and only fused by one of the 80 amp PDS fuses (if fitted - only on later cars). I remember seeing a couple of Omegas that had caught fire where the problem looks to have originated in this area too :o

Sounds to me like the switched and unswitched supplies shorted together :o

Kevin

If it's protected by an 80 Amp fuse would it not be sensible to fit a lower rated fuse in line with the sounder to avoid the possibilities of fire??

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: Kevin Wood on 23 January 2008, 11:43:38

Ideally the wire should be protected by a smaller fuse at the point it is fed. The fuse is there to protect the wire after all. I really don't know why it's not fused.

Maybe this is some requirement of a Thatcham approved alarm? Seems pretty pointless when it is protected by an internal backup battery anyway, and it's not hard to disconnect the vehicle battery.

Fitting an inline fuse in each supply by the power sounder would be no bad thing, but it still leaves the majority of the length of wire unprotected. It would offer some insurance against a catastrophic failure of the power sounder, though.

Kevin

Title: Re: ENGINE WON'T STOP - PROBLEM NOW FOUND
Post by: andyc on 24 January 2008, 09:20:58

Can't take credit for finding this i was our sparky in the workshop

Andy