Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
In my 253 HZ running std strommie...185 accross the board comp...new electronic dissy, leads & NGK plugs.
When I check for plug electrode colour I get white electrodes on all cylinders except #4, which has a nice bronze colour. on the others they are white (clean) with fawn coloured earth tip?? I hjave the mixture screws at just under 1 1/2 turns out on both but makes no difference?
Any ideas please....as she also has a flat spot at 1500rpm and pinging under load...dissy is set to 4degs advance as i tried to set as per bonnet info but could not get down the road...4 is ok at this stage.
I got a ACA electronic dissy.
Cheers
Darren
Don't worry dear...it's only money!
|
|
|
|
|
|
Rank: Veteran
Groups: Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 1,991
Was thanked: 2 time(s) in 2 post(s)
|
The unleaded petrol makes judgment by the colour of the electrodes unreliable. The pinging could be running a bit lean, low float level, blocked fuel filter not allowing full flow of fuel,this also could be reason for flat spot. The dissy set you have to
|
|
|
|
|
|
Rank: Guest
Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977
Was thanked: 5 time(s) in 5 post(s)
|
either a slightly worn ring, or maybe a dodgy lifter/valve?
if its just on one cylinder it can't be anything common like mixture timing etc
VN Calais, V8 Auto, Blown etc etc.
Air con, Electrical, Car audio Master.
|
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
