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Old 08-08-2005, 07:19   #1 (permalink)
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XD V8 TACHO, help

hi all

I have a XD V8 , with a 6cyl tacho in ,it i've been told u can change the tacho to suit the v8 by changine a resistor ?
does anyone no if this is true ?
and what resistor do i change or fit to do this ?
any imput would be helpfull thanksl.
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Old 08-09-2005, 02:26   #2 (permalink)
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Re: XD V8 TACHO, help

I would also be like to know the answer to that. I have opened it up, no clues. Maybe VDO can help. I will chase it up tomorrow.
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Old 08-09-2005, 06:14   #3 (permalink)
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Re: XD V8 TACHO, help

i rang a auto elecrician and he quoted me $50 so i no it can be done.
but cheaper if i can do it myself ,
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motorvation top10 , AME top 10 + top engine bay + top interior + top sedan +top street machine ,
all ford day top 10 . 2005 was a good year for the old girl
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Old 08-09-2005, 20:11   #4 (permalink)
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Re: XD V8 TACHO, help

Speedo is offfff

post 19 shows the trimpot you are looking for....
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Old 08-12-2005, 03:19   #5 (permalink)
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Re: XD V8 TACHO, help

Thanks Silicon, i would have thought the trim pot would simply fine tune the circuit after the correct value components were fitted.? Anyway I have emailed VDO to ask for info but as yet you are the only useful reply I have recieved.
thanks
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Old 08-12-2005, 15:14   #6 (permalink)
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Re: XD V8 TACHO, help

Quote:
Originally Posted by nassi
Thanks Silicon, i would have thought the trim pot would simply fine tune the circuit after the correct value components were fitted.? Anyway I have emailed VDO to ask for info but as yet you are the only useful reply I have recieved.
thanks
I can assure you the trimpot has enough range to tune the 6cyl unit to read correctly as a V8. Using another external tacho is the trick to fine tune it.
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Old 08-13-2005, 03:01   #7 (permalink)
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Re: XD V8 TACHO, help

Thanks mate I'll give it a go.
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Old 10-28-2005, 18:21   #8 (permalink)
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Re: XD V8 TACHO, help

hey guy's
Know its been a while but finally tuned in the tacho , got a aftermarket universal tacho i found in the shed set that up and held it a 3000rpm as i tuned in the orignal tacho and it works fine .

so there you go thanks alot for you're help
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motorvation top10 , AME top 10 + top engine bay + top interior + top sedan +top street machine ,
all ford day top 10 . 2005 was a good year for the old girl
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Old 10-30-2005, 03:49   #9 (permalink)
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Re: XD V8 TACHO, help

Quote:
Originally Posted by Lee81
hey guy's
Know its been a while but finally tuned in the tacho , got a aftermarket universal tacho i found in the shed set that up and held it a 3000rpm as i tuned in the orignal tacho and it works fine .

so there you go thanks alot for you're help
Good one!

We got another satisfied guy last week using the tacho side trim pot trick too!

Don't forget the speedo has a trim pot too for those tyre/diff gear changes.
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