Mad flicking rev counter needle problem....ideas needed

[flyingbanana]

my rev counter flickers when the engine is not running but power is on,

 

when its running it flickers quite madly until its about 2.5tho rpm

 

any one had this problem before or know how i cant sort it

 

this is a after market rev counter btw

 

thanks in advance

[flyingbanana]

ive even rewired it with completely new wires and still the same

 

anyone i

[baz105e]

is your electric system positive earth ???

[flyingbanana]

no its neg earth

[razersedge]

have you tried a new coil or dizzy cap incase it's tracking down

[omj624p]

I've had two do that on two seperate occasions, and I know of someone else whos did it also. It seems common.

 

In each occasion the unit was replaced, no one ever managed to fix it

 

Steve

[Burns]

take the unit apart, remove the needle, throw the needle in the bin, then put it back together. i guarantee the needle won't flicker then

[Pye Man]

I had a problem like that, I think it was somthing to do with the coil

 

Sorry, I cant 100% remember what the cure was.

[DizzyDennis]

Hi mate what make is the rev counter?

[flyingbanana]

the cap is new so shouldn't be a problem

 

should their be a specific coil that should go with electronic ignition?

 

@ burns ...thats one way of fixing it

 

dont know what the make the rev counter is

 

ive been trying to hunt this problem out and ive found that if i switch on hazards etc it flickers slightly, but if i start playing around with the speedo cable or bang the dash dial area it flickers quite madly....ive checked everything and cant see a problem....even cleaned the contacts

 

ive had a problem with the dash lights dim when i flash or put the brakes lights on for a few years now and never found the cause....would this problem be a part of it?

 

ive even stuck a another earth cable at the back.....and still no luck

 

here is how mad it flickers when tapping the top of the dash

 

 

if you know what could be the cause please say or any suggestions....its doing my head in now

[flyingbanana]

anyone :sad:

 

 

 

still havnt found the problem....but was thinking would it need a relay?

[Savvi]

The other problems you had sounds like bad earthing ?

 

Check the main body and engine earthing you could also try a new cable or as a temp measure i use a jump start cable one end on the battery (earth or neg side) then the other end to the engine, then try the body etc etc .

 

You could also try a wire directly to the dash ? Or if you can use and have a multi-meter you can test the current drain via a new earth ?

 

Mini's use to burn the choke cables out if they had a bad engine earth this also gave similar problems to dash lights etc as these rely on a earth return to work the guage.

[surfingturnip]

are you changing up at 3000rpm or is that just not set properly?

[flyingbanana]

i thought it might be a earthing problem....thats why i put new ones in and it made no difference

 

i stuck the connections directly to my jump starter pack and still got it flicking if bang on the dash etc. ...so its not even using the car battery.........so i assume it would either be the main feed wire to the coil thats picking up something or the dial is fooked

 

and the red needle is adjustable by hand and is not been set yet.....atm it makes sure i dont over rev the rebuilt engine