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tips, technology, tools and techniques related to vehicle driveline components

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donkelly23
Don Kelly
Charleston, SC
(111 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: Sensing cam position on Buick/Rover V8
Posted by: donkelly23
Date: August 03, 2016 05:20PM

Yep, pretty sure it is NLS.
Just use the top number I think
20160803_171800_resized.jpg



Edited 1 time(s). Last edit at 08/03/2016 05:21PM by donkelly23.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5830 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Sensing cam position on Buick/Rover V8
Posted by: BlownMGB-V8
Date: August 03, 2016 07:03PM

Looks like that was an extremely good price. Makes sense of the mods Curtis and I have done. Cheapest I saw was about $175 on ebay (maybe) and prices between $230 and $375 otherwise.

Wonder if they sell just the sensor off the top? Maybe that could be useful. Don, would you be willing to remove the cap and take some pictures of what is inside?

Jim


MG four six eight
Bill Jacobson
Wa state
(299 posts)

Registered:
10/23/2007 02:15AM

Main British Car:
73 MGB Buick 215, Eaton/GM supercharger

Re: Sensing cam position on Buick/Rover V8
Posted by: MG four six eight
Date: August 03, 2016 11:27PM

Interesting, I didn't realize that such a part existed. Although it's fairly expensive, it would have been easier then making one.
Looking back, I did enjoy using the lathe to fabricate one up though!

Bill



Edited 1 time(s). Last edit at 08/03/2016 11:34PM by MG four six eight.


donkelly23
Don Kelly
Charleston, SC
(111 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: Sensing cam position on Buick/Rover V8
Posted by: donkelly23
Date: August 04, 2016 08:58AM

Jim
"Don, would you be willing to remove the cap and take some pictures of what is inside?"
Sure, I'll try to get to it today.

Right now I'm hassling with the lifter preload on my 4.0 motor


donkelly23
Don Kelly
Charleston, SC
(111 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: Sensing cam position on Buick/Rover V8
Posted by: donkelly23
Date: August 04, 2016 09:24AM

Looks like a standard Hall effects sensor
20160804_091316_resized.jpg
20160804_091157_resized.jpg
20160804_091201_resized.jpg


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5830 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Sensing cam position on Buick/Rover V8
Posted by: BlownMGB-V8
Date: August 04, 2016 10:29AM

Hmm... Could be a photo-diode pair.

Jim


DiDueColpi
Fred Key
West coast - Canada
(1259 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: Sensing cam position on Buick/Rover V8
Posted by: DiDueColpi
Date: August 04, 2016 10:33PM

I`m going with Hall Effect for two hundred Jim!

Hold something ferrous, like a screw driver up to the sensor. If it`s magnetic then it`s a Hall effect.
Either way you will need to trim the trigger wheel so that it`s a 180 degree cut out for most systems to recognize it
Still a very useful part at an excellent price.

Live like you mean it.
Fred



donkelly23
Don Kelly
Charleston, SC
(111 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: Sensing cam position on Buick/Rover V8
Posted by: donkelly23
Date: August 05, 2016 08:10AM

Fred
"Either way you will need to trim the trigger wheel so that it`s a 180 degree cut out for most systems to recognize it "

English please.
Still new to all these modern dealies.


TR8Driver
Darrell Walker
Vancouver, WA, USA
(5 posts)

Registered:
08/23/2019 07:59PM

Main British Car:
1981 Triumph TR8, 1966 Triumph TR-4A 3.5 Rover V8, 2.1 wet liner 4 cyl with super charg

authors avatar
Re: Sensing cam position on Buick/Rover V8
Posted by: TR8Driver
Date: October 08, 2019 06:34PM

I know this is an old thread, but I'm going to use this same sensor for my Rover V8. I will have to change the drive gear, and have found that the Buick shaft is slightly thicker than the Rover shaft, so I'm waiting for a 1/2" reamer to open up the drive gear slightly. I will also have to cut off the end of the Buick shaft, as the TR8 uses a different drive end.

But I wanted to comment on the comment from Fred:

"Either way you will need to trim the trigger wheel so that it`s a 180 degree cut out for most systems to recognize it "

If I want to use this as a single-tooth wheel, I believe it will work as-is, and I can define either rising or falling edge. If I wanted to use a polled setup, then yes, I think you could widen the window to be 180 degrees. But from what I'm reading the MegaSquirt manual, the only downside of setting it up as a single-tooth is it might take an extra rotation for the ECU to set sync.


TR8Driver
Darrell Walker
Vancouver, WA, USA
(5 posts)

Registered:
08/23/2019 07:59PM

Main British Car:
1981 Triumph TR8, 1966 Triumph TR-4A 3.5 Rover V8, 2.1 wet liner 4 cyl with super charg

authors avatar
Re: Sensing cam position on Buick/Rover V8
Posted by: TR8Driver
Date: November 22, 2019 06:37PM

Just a note for anyone looking to use this Buick Grand National cam sensor (if you can find one). It will require a pull-up resistor when using with a MegaSquirt.
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