blakep82
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| posted on 21/2/12 at 01:05 AM |
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type 9 speedo cable turns per turn of prop?
anyone know?
how many times does the speedo cable output on a type 9 gearbox turn per turn of the prop shaft?
i'd guess 1:1, but shouldn't assume!
thanks in advance!
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woolly
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| posted on 21/2/12 at 01:13 AM |
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depends on the gear inside the box that the cable connects to
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blakep82
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| posted on 21/2/12 at 01:24 AM |
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ooh, aren't they all generally the same?
thought they'd all be the same ratio?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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snapper
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| posted on 21/2/12 at 06:57 AM |
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Little gear that drives the cable is used by fords to get the correct output for different diff ratios and tyre sizes
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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britishtrident
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| posted on 21/2/12 at 07:40 AM |
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The Ford blue drive speedo gear often found in type 9 boxes has a ratio of 27:7 ie 27 turns of the propshaft to 7 turns of the
cable.
Fords speedo are calibrated for 1000 turns per mile.
Smiths speedos have the turns per mile in a tiny font right at the bottom of the clock face ---- usuallly a number betweeen 800 and
1500 .
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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Chippy
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| posted on 21/2/12 at 04:28 PM |
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quote:
Originally posted by britishtrident
The Ford blue drive speedo gear often found in type 9 boxes has a ratio of 27:7 ie 27 turns of the propshaft to 7 turns of the
cable.
I thought that there were differing gear ratios, I seem to recall that there are three, (at least), diferent gears you can get to fit the T9 box.
Cheers Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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britishtrident
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| posted on 21/2/12 at 07:06 PM |
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quote:
Originally posted by Chippy
quote:
Originally posted by britishtrident
The Ford blue drive speedo gear often found in type 9 boxes has a ratio of 27:7 ie 27 turns of the propshaft to 7 turns of the
cable.
I thought that there were differing gear ratios, I seem to recall that there are three, (at least), diferent gears you can get to fit the T9 box.
Cheers Ray
F
At one time there was a Ford Capri owners website that gave the info and part numbers for at least 3 different ratios but I can no longer find
it I know blue ratio works with out at 1000 turns per mile the 3.89 and tyres they same rolling radius as 185/70x13
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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