donkelly23 Don Kelly Charleston, SC (130 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
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6468 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Sensing cam position on Buick/Rover V8
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 (324 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
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 (130 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
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 (130 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
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6468 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: Sensing cam position on Buick/Rover V8
Hmm... Could be a photo-diode pair.
Jim |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: Sensing cam position on Buick/Rover V8
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 |
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donkelly23 Don Kelly Charleston, SC (130 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
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 (15 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 |
Re: Sensing cam position on Buick/Rover V8
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 (15 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 |
Re: Sensing cam position on Buick/Rover V8
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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