I have a mk 5 escort cabriolet with a rs turbo engine in it, when the car is on tick over the rev counter sits on 3000 and if i put my foot down it will go off the clock, i have pulled it all apart and u can not move the pin on the clock can anyone help me plz. ????

 

I had this problem with a fiesta van i had i put a 1.6 carb engine in it but it all ready had xr2i efi clocks in it which is an electronic ignition not a coil 1 like on carb.i changed clocks to a non efi and it worked fine so you can change clocks that is if your car used to be efi??? or there is a wire you can join to the coil for it to work but cant remember which 1....

 

I think the car was a 1.6,there is not much history with the car,so what your saying is that i could put a mk 5 xr3i clock in and this may work for me?

 

Theres a pot inside the clocks you can adjust, its because the clocks came from an EFI car.

 

I could not see no pot inside it, ive been talking to someone and they told me to use a mk5 1.4 escort clock and this should solve the problem.

 

Thats a better idea, i didnt think of that, the 1.4's are DIS aswell. Im sure they have a pot inside, i know mk3/4's do, thats how the calibrate them when they are made

 

Sorry tell a lie, that wont work i dont think, what is you engine running on DIS, or a conventional coil and dizzy?

 

yes my car is using the conventional coil and dizzy, does this mean i cant use the clock out off the 1.4,thought the 1.4 mk5 escort was an carb so i got told i could use the clock from this,or am i wrong?

 

The 1.4's to my knowledge are DIS, the problem you have, is you have clocks calibrated for DIS, (2 coils effectively, so obviously only sparking half the amount per coil, as theres 2 plugs run per coil), and your running a coil that operates all 4, therefore getting double the reading.

Check out the 1.4's incase im wrong but im sure everything in the MK5 range is DIS.

Can you post a picture up of the rev-counter itself (the PCB)

 

the rev counter is just a normal mk5 one,i will try the 1.4 clock but going on what you say i dont think it will work,have you got any idear what i could use plz.

 

I gathered it was a standard one, just wanted to see what components are on the PCB. If u can get a pic up i might be able to help

 

ok m8 will take some photo tomorrow and post it up for u, so you can have a look at it.

 

 

Sorry, i think you misunderstood what i meant. I meant the actual rev counters PCB, within the clocks, there will be a pot on the actual rev counters PCB

 

is it the green pot on the side that does it??

 

Indeed

 

thanx for your help m8 you are a top bloke

 

The only problem i see you having.......how are u guna know what RPM the engine is running at in order to set the gauge

timing light might be an idea

 

i will just have too keep moving the pot then put it back , then take it apart if the rev are not right and move it agian,do u think this will work m8.

 

Thats a pain in the ass way to do it. Can't you borrow a timing gun from someone? They display RPM

 

my mate has got a gun so ill borrow it off him

 

 

got there in the end lol

 

U can say that when it all works lol, dont speak to soon, remember its got a Ford badge on it

 

very true mate ill see when i do it at the weekend if it works loll

 

Nice one

 

got a rpm gun set the revs at 900 and moved the pot but the rev counter stayed at 3000 rpm ,need your help again

 

Is that the only pot on the PCB??

Thats strange

 

yes m8 that is the only pot on the pcb on the back off the rev counter

 

Thats very odd, where is the coils signal wire connected to do you know?

 

sorry m8 do not have a clue

 

Did you wire the car?

Ive played about with rev counters on mk4's and that was how i did it, the board may even be exactly the same, cant remember now though been a while, but om mk4's the clocks to run off DIS were the rarity, and i compared the rev counters out of a car that was DIS and one that was conventional coil and the rev counters were exactly the same.

Are you in a rush to get it done?

 

Think ive sorted it m8,i had a old mk4 rev counter in my garage so i took the mk5 pcb rev counter out and put the mk4 pcb rev counter in and it seems to now be on 900 rpm now, Will have to take the car for a spin tomorrow to see if it has worked

 

I was going to suggest that i thought they looked the same

if its reading right on tickover it should be fine

 

Just took my car out for a spin and the rev counter did not work,when its on tick over it sits on 900 rpm fine, But when i take it throught the gears it wont go more than 3000 rmp, When im on the motor way sitting at 70 mph its only at 2000 rpm,I dont know what car the pcb i found was out off, all i know it was a mk4 one,what pcb do you think i should try in it next m8?

 

i had that prob with a mk4 rev counter, it was shagged,

maybe a replacement mk4 rev counter?

 

To be honest with you mate it might not be the PCB, it would be extremely helpful if you could find out where the rev counter is wired to, it could be wrong for all you know?

Just out of interest aswell what engine are you running, im presuming a FRST engine running DIS yeah?

 

Just talked to my m8 that i got the mk4 clocks off and he says they were from a xr3i, so thats y they dont work.
As you can see ive got a erst engine and thats the car its in.

 

Fairplay that car is the bollucks

Right, so your running a RST lump running from a conventional coil. Any mark 4 rev counter with the exception of the EFI should work straight off, the EFI being the only DIS model in the range.

Try another mk4 PCB and if that doesnt work i'd start asking questions about the wiring personally, can't see numerous rev counters being faulty.

Christ Your running the power steering off that, does it actually tick over ok

 

Going to go to a scrap yard in the week and get another mk 4 rev counter in ,I think it will work with that,Ive just done a engine rebuild on it put low comp piston in and the car runs sweet as a nut on tick over, Need the power steering with 19 rims on