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Author: Subject: 36-1 Trigger Wheel on a Pinto ?
mcerd1

posted on 28/2/08 at 01:16 PM Reply With Quote
36-1 Trigger Wheel on a Pinto ?

I need to mount a 36-1 trigger wheel of some kind on my pinto (its got a cossie crank)

I know I could buy something like this: click
but they arn't cheap and thats not including the pulley

I've got a cortina style single 'v' pulley I'd like to use - this suits the pinto crank which is 8mm shorter, so I'll need a spacer anyway and I fancy doing something a little better than holding it with just the crank bolt trough the centre


.... so I was wondering about making a spacer that included a mount for the tigger wheel (or is the trigger wheel) like this:


only problem is the key will be covered by the pulley so I won't be able to use it to stop the trigger wheel turning



any thoughts ??

-Robert

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Mr Whippy

posted on 28/2/08 at 01:33 PM Reply With Quote
hmm really all you need is a disk with a roll pin between the disk and the pully hub?





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mcerd1

posted on 28/2/08 at 01:44 PM Reply With Quote
the plan would be to drill out the ctr of the trigger wheel, big enough that the crank bolt + washer will fit throught the centre and clamp the spacer/ pulley to the crank (without touching the trigger wheel)

but not so big that I need to get a ring type trigger wheel instead (although this woundn't be the end of the world)

I'd bolt the trigger wheel to the spacer with some small csk or cap heads into tapped holes in the spacer

but that still leaves one problem - there is nothing to stop the spacer / trigger wheel turning on the shaft ?????

of course I could make a whole new pulley with a trigger wheel mounting - but thats starting to get expencive

[Edited on 28/2/08 by mcerd1]

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Agriv8

posted on 28/2/08 at 02:05 PM Reply With Quote
ve you had a look at the engine specific ones at http://trigger-wheels.com/store/index1.html ?

regards

Agriv8





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rayward

posted on 28/2/08 at 02:35 PM Reply With Quote
just fitted one to my pinto, will take some pics tonight

Ray

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Paul TigerB6

posted on 28/2/08 at 02:45 PM Reply With Quote
You could try this chap.... MartinPTownsend@aol.com by dropping him an email

I got my trigger wheel and a bracket for making up the VR sensor mounting from him for £12 anyway.

Description
Description


[Edited on 28/2/08 by Paul TigerB6]

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mcerd1

posted on 28/2/08 at 03:07 PM Reply With Quote
quote:
Originally posted by Agriv8
ve you had a look at the engine specific ones at http://trigger-wheels.com/store/index1.html ?



yeah, I've seen them

I was thinking about something like the there RV8 ones - but I'll need to make something for them to mount to...

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mcerd1

posted on 28/2/08 at 03:13 PM Reply With Quote
quote:
Originally posted by Paul TigerB6
You could try this chap.... MartinPTownsend@aol.com by dropping him an email
thanks for that

do you know which pulley you've got there ??

my problem is that I've given myself an extra headache by using the cossie crank - so I'll need a spacer of some kind regardless

I could get a cossie pulley - but these go for silly money (and weigh twice as much)

[Edited on 28/2/08 by mcerd1]

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Paul TigerB6

posted on 28/2/08 at 03:19 PM Reply With Quote
quote:
Originally posted by mcerd1

do you know which pulley you've got there ??

my problem is that I've given myself an extra headache by using the cossie crank - so I'll need a spacer of some kind regardless

I could get a cossie pulley - but these go for silly money (and weigh twice as much)



Its the standard Pinto pulley and the trigger wheel is simply bolted to it after locating it with the original pulley bolt as the hole is drilled specific to fit. Just needed to leave the thick spacer off that was originally on the engine

[Edited on 28/2/08 by Paul TigerB6]

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mcerd1

posted on 28/2/08 at 03:29 PM Reply With Quote
quote:
Originally posted by Paul TigerB6
Its the standard Pinto pulley and the trigger wheel is simply bolted to it after locating it with the original pulley bolt as the hole is drilled specific to fit. Just needed to leave the thick spacer off that was originally on the engine

ok thanks, so you've probably got the same pulley as me then

do you have a couple of washes behind the trigger wheel ?? (to make the centre of the pulley level with the outside edge - if that makes sense)

what are the 3 small bolts bolted to ? / did you have to drill / tap the pulley ?

(sorry for all the questions)
-Robert

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Paul TigerB6

posted on 28/2/08 at 06:25 PM Reply With Quote
quote:
Originally posted by mcerd1
ok thanks, so you've probably got the same pulley as me then

do you have a couple of washes behind the trigger wheel ?? (to make the centre of the pulley level with the outside edge - if that makes sense)

what are the 3 small bolts bolted to ? / did you have to drill / tap the pulley ?

(sorry for all the questions)
-Robert


I simply put the trigger wheel on after the pulley and tightened the crank bolt and then backed it off a bit so that i could turn the trigger wheel to align it as per instructions. Once this was done i drilled straight through the trigger wheel and pulley in one go amd fitted a long bolt and nyloc. The trigger wheel sits flush against the outer edge of the pulley anyway so no need for washers. Adjustment to the timing is done via moving the the VR sensor bracket which has a good few degrees of movement


Image deleted by owner

Image deleted by owner


[Edited on 28/2/08 by Paul TigerB6]

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cng1

posted on 29/2/08 at 07:41 AM Reply With Quote
If the puller holes are the same on the cortina style pulley as the cosworth one then the "lightweight" trigger wheel from www.trigger-wheels.com should bolt straight on.
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mcerd1

posted on 29/2/08 at 10:59 AM Reply With Quote
the cortina one I've got doesn't have any puller holes

its this type:

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