f28 speedo help

[dearing5]

i removed my f20 today and nocited it has a different transducer to my f28??

my f20 had a little 3pin plug and the f28 has nothing like it...

can i just swap them over?

thanks

[mac1976]

no mate you need to open box up and swap speedo ring over to a black f20 1 , the f28 1 is blue

[dearing5]

ah right, but the f28 is mechanical..i dont want to be splitting the box

[seanr28]

no choice if you want it to read the speed correctly, else you need the turbo clocks!

[sneakycorsa]

How do you know what speedo drive you have then ? I have a f28 but i'm sure it was std so i've just got 160mph clocks to go with it, But how do i make sure it is std speedo drive, (its mechanical type)...

[Pitstoppete]

as he says above
if you are going to use the 160 clocks you need the blue pinion and crownwheel fitted to the std f28 -

undo the little keeper plate pull out the pinion from the f28 and be careful to hold the gear inside and check its blue. then check with a tiny torch down the hole and make sure the wheel is also blue. this will read right with 160 clocks, if you are running 205/50/16s that is. any other size and it still wont be right.

[sneakycorsa]

I'll br running 205/40/17 will that throw it out much ??

[Pitstoppete]

not by much no.

[sneakycorsa]

out of intrest the bigger the wheel does it read as faster or slower than you really are going ?