TW25 digital dashboard issues

[moldengineer]

Recently the dashboard on our 1989 tw 25 has been playing up. It operates normally but after a while everything starts flashing. This can be cleared by pressing any of the soft keys on the rhs of the digital display. Also stops with rpm higher than 1500 ish. Anyone experienced this?

 

[Kevtherev]

Have a word with David King electronics I think he can repair them?

 

[moldengineer]

Sadly it's a bit too intermittent at the moment, I do like it when things fail properly!! Will give Dave King a call though.

 

[7610 super q]

Worn, or brittle wires somewhere most likely.

 

[cormywormy]

Neighbours 8830 does the exact same. One of the screws holding the dash together could have rattles loose which pulls connections apart. Or there could be a wire pulled on one of the connections, he had to re solder it twice. It tells you at tick over it's doing 7000 rpm haha

 

[Barleymow]

Neighbours 8830 does the exact same. One of the screws holding the dash together could have rattles loose which pulls connections apart. Or there could be a wire pulled on one of the connections, he had to re solder it twice. It tells you at tick over it's doing 7000 rpm haha

the connection on the fuel pump failing can cause unusual rpm readings

 

[7610 super q]

the connection on the fuel pump failing can cause unusual rpm readings

Yes, wire goes brittle and cracks.

 

[cormywormy]

the connection on the fuel pump failing can cause unusual rpm readings

Yes, wire goes brittle and cracks.

Bother right there lads, the cable is gone going into the pump, mainly te threads on the pump are fecked

 

[Barleymow]

I pushed some red in line crimps into the pump end crimped wire the other end onto loom and masticked the pump end ones in place been there for 3 yrs so far and working as normal

my fuel gauge keeps showing empty I expect that is wiring as it's ok sometimes

 

[glasshouse]

they are a fecking pain.
give me a rev counter any day

 

[moldengineer]

Sorted the erratic rpm thing a few years ago with a new sensor on the injector pump. But the coating on the wires is brittle. Also had a speedo issue, again sorted with a new sensor in the gearbox. Everything flashing on the dash is still an issue.

 

[Oily rag]

Check the multi-pin plug by the bulk head. Connections go green and cause dash to go haywire!

 

[Thomas5060]

On the digital dash on my 8210 where it's meant to show the revs it just says "open", anyone know what the problem could be?

 

[7610 super q]

On the digital dash on my 8210 where it's meant to show the revs it just says "open", anyone know what the problem could be?

Open circuit. Broken wire somewhere. Wires tend to go brittle and break.
Will take a pic of mine later.

 

[Thomas5060]

thanks for that, though it was telling me to go 'full open'

 

[7610 super q]

This is the wire that gives me trouble (note electrical tape bodge).
TW and 8210 may have a different set up though.........