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Home > Help Needed / General Tech Chat > Trigger wheel mounting - an alternative ???

Rod S

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5988 Posts
Member #: 2024
Formally Retired

Rural Suffolk

15th Mar, 2008 at 12:40:50pm

Just got my trigger wheel (Thanks Ross, mini-maruader in the For Sale section) and I've been thinking...

All the photos I've seen on this site (and others) seem to mount the trigger on the front (outside) of the pulley, or even get the notches machined straight into the outer bit, but why not the back ???
(wedged in place for photo)

Or even use the metal plate that is fitted to the back of later pulleys (left of photo) to attach it to the bit without the rubber, can't mimic it in the photo (need to take the plate off first) but you can probably see what I mean.
It would need a slightly smaller trigger wheel or a small mod to the chain cover, or the earlier cover, but do-able ???

Rod.

Schrödinger's cat - so which one am I ???

Joe C

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Carlos Fandango

Burnham-on-Crouch, Essex

15th Mar, 2008 at 01:04:21pm

looks like a fair idea,

also i reckon you could make "tooth 1" line up with the existing timing marks.

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



stevieturbo

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Member #: 655
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Northern Ireland

15th Mar, 2008 at 01:22:11pm

Thats how I did my Rover V8, and my LS1.

Easy peasy, and no fancy machining. Also gives you the freedom to mount the sensor anywhere if you wanted.

Although a Dizzy based cam/phase would be another option ( Nissan and Toyota use compact dizzy style mount sensors, although these would require some work to adapt )

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


Rod S

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5988 Posts
Member #: 2024
Formally Retired

Rural Suffolk

15th Mar, 2008 at 03:04:25pm

OK, Just machined the rivets off to free the plate (damaged pulley, not by me, if anyone notices)
then taped the triggerwheel to the plate


and, as expected, it fouls the cover ever so slightly

The next size down trigger wheel would clear, or a small modification to the cover.
I have yet to figure out if I can get a small enough VR sensor in there (next on my shopping list) but I thnk I prefer the trigger wheel behind the pulley, and mounted on the non-rubber part of the pulley.

Schrödinger's cat - so which one am I ???

Scruffy

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Seaford Rise, South Australia

15th Mar, 2008 at 07:49:31pm

Used to have the trigger wheel on the back of the pulley on my long cam set up (KAD) kept cracking the mounting, the tin plate etc whatever I used - but that might have been revs!

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know *wink*

rubicon

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I like granny porn.

LONDONSHIRE

15th Mar, 2008 at 08:57:05pm

im starting to think i should have taken more time with mine..lol

On 2nd Oct, 2009 Vegard said:

On 1st Oct, 2009 Jimster said:
I bet my first wank came quicker than your first mini turbo


These new modern turbos with their quick spool up time, would make the competition harder.


On 15th Aug, 2011 robert said:
phew!!! thank you brett for smashing in my back doors .( not something i imagined writing... EVER)
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