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Front pulley toothed wheel

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Dave

Front pulley toothed wheel
« on: March 13, 2016, 08:21:24 AM »
I am detailing my front pulley/harmonic balancer and thought this is a good time to add the interrupter wheel for my future plans to go distributorless.  I figure I have two choices for sourcing one.  One is to get one from a Land Rover at the wrecking yard but that would require a battery operated impact wrench, which I don't have.  The other is to just go to a FLAPS and buy one.  In pursuit of the second option what would I request and from what year/model LR?



Thanks.

 



Dave Massey

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W Parris

Re: Front pulley toothed wheel
« Reply #1 on: March 13, 2016, 12:12:49 PM »
I don't think land rovers use them on the front pulley do they?  I used one

from DIY Autotune.



Will



>

"Bill Derksen"

Re: Front pulley toothed wheel
« Reply #2 on: March 13, 2016, 12:24:53 PM »
Dave,

B

AFAIK, the distributorless Land Rovers use a pickup that is on the

forward side of the flywheel/flexplate, plus another sensor on the cam

sprocket. I designed, had laser cut, and machined my own for my

Megasquirt system. If you want one ready-made, I highly recommend:

https://www.diyautotune.com/ for any of the MS related products; and suggest:

http://www.megasquirt-v8.co.uk/ms_3-5_etc.php for anything else you

might want for the Rover V8.

B

Cheers

Bill

W Parris

Re: Front pulley toothed wheel
« Reply #3 on: March 13, 2016, 12:30:01 PM »
If I were to do it again. I'd have one water-jet cut to fit my pulley, instead

of using a universal one. I however chose to mount mine in the middle of the

stack of pulleys, it looks better there, but this messes up water pump pulley

spacing. So you need to either space out the pump pulley or cut the pulley on

the crank shorter.



Will



>

Wayne Simpson

Re: Front pulley toothed wheel
« Reply #4 on: March 13, 2016, 01:14:08 PM »

Trevor Norris

Re: Front pulley toothed wheel
« Reply #5 on: March 13, 2016, 05:57:19 PM »
I used a trigger wheel from

http://trigger-wheels.com/store/contents/en-uk/d14.html

It fitted perfectly after I cut off the rolled section of the rear-most

pulley (power steering pump pulley?)

Trevor

Bill

Re: Front pulley toothed wheel
« Reply #6 on: March 13, 2016, 09:03:52 PM »
Rover V8s have a trigger pickup mounted to the block that picks up on a

trigger on  the flywheel\.

Dave

Re: Front pulley toothed wheel
« Reply #7 on: March 14, 2016, 07:46:40 AM »
Cool.  I typically default to scrap yard parts, at least for experimenting, since they put a bunch into R&D and reliability.  For example, I am adapting a fan/shroud assembly from a Ford Tiempo to the TR8 radiator.  It is about 3 inches (8mm) too wide but the perfect height.  I had to make some minor modifications to the shroud at the corners where the hoses attach but the plastic cuts easily.   And it is cheap.  But in this case aftermarket is the way to go.  Thanks for the link.  Thanks to all for the responses.

 



Dave Massey

Dave

Re: Front pulley toothed wheel
« Reply #8 on: March 14, 2016, 07:50:31 AM »
BTW, just how thick is the wheel?  I can't see them being more than 2 - 3 mm.

 



 



Dave Massey

Bill Derksen

Re: Front pulley toothed wheel
« Reply #9 on: March 14, 2016, 10:36:09 AM »
When I was done with mine, it was 1/4" thick at the teeth. I have seen

wheels stamped from sheet metal and the teeth were bent over tabs. I

think as long as the face that the pickup sensor "sees" is about as wide

as the sensor, it should be fine.



Cheers

Bill

William Parris

Re: Front pulley toothed wheel
« Reply #10 on: March 14, 2016, 12:07:58 PM »
Here you can see a pic of my setup.



http://tinyurl.com/jh53lok <http://tinyurl.com/jh53lok>



Will



>

"Michael Jeffreys"

Re: Front pulley toothed wheel
« Reply #11 on: March 14, 2016, 02:49:52 PM »

Dave

Re: Front pulley toothed wheel
« Reply #12 on: March 14, 2016, 05:59:22 PM »
Cool.  Thanks.



 



 



Dave Massey

Dave

Re: Front pulley toothed wheel
« Reply #13 on: March 14, 2016, 06:07:37 PM »
Thanks for the picture.  Looks like a clean installation.

 



Dave Massey

Dave

Re: Front pulley toothed wheel
« Reply #14 on: March 14, 2016, 06:16:42 PM »
This approach minimizes pulley misalignment but adds the second step of forming (bending) the teeth.  Neat idea.



 



 



Dave Massey