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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16961
Location: San Diego, California
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 Posted: Mon Oct 15, 2018 2:10 pm Post subject: 1987 Vanagon Mystery electronics |
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Guys,
Can anyone tell me what this mystery gizmo is? It has a red LED on it.
Thanks
_________________
Lead Mechanic: San Diego Air and Space Museum
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the joker
Samba Member
Joined: October 12, 2006
Posts: 1287
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| Posted: Mon Oct 15, 2018 2:25 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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more info, what's it hooked to hoses  |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16961
Location: San Diego, California
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| Posted: Mon Oct 15, 2018 2:26 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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I don't know yet. The owner was Tom Powell and he's dead now.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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DanHoug
Samba Member
Joined: December 05, 2016
Posts: 4775
Location: Bemidji, MN
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| Posted: Mon Oct 15, 2018 2:32 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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if that vacuum hose is attached to the box, he's made a vacuum actuated throttle switch with LED indication! that vacuum line is T'd off of the port that should have less than 1" at idle and increases when the throttle is opened. the purple line controls the purge valve on the charcoal canister.
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-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com
Last edited by DanHoug on Mon Oct 15, 2018 2:33 pm; edited 1 time in total |
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crazyvwvanman
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Joined: January 28, 2008
Posts: 9923
Location: Orbiting San Diego
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| Posted: Mon Oct 15, 2018 2:33 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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Looks like one of the vacuum switch replacements for the throttle position switch that originally was part of the throttle body assembly.
Mark |
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Zeitgeist 13
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Joined: March 05, 2009
Posts: 12115
Location: Port Manteau
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| Posted: Mon Oct 15, 2018 2:34 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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Isn't that one of Vanistan's old vacuum actuated TPS?
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'89 Bluestar ALH w/12mm Waldo pump, PP764 and GT2052
'01 Weekender --> full camper
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Steve Arndt
Samba Member
Joined: August 01, 2005
Posts: 1780
Location: Boise, Idaho
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| Posted: Mon Oct 15, 2018 2:56 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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That is the tencent / Rocky Jennings VSM vacuum switching module. I liked mine. It recently died. The electronics and case are not made for a HOT/COLD engine compartment environment. There was a lot of corrosion inside mine when I took it apart to inspect after it quit working.
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Steve
Steve's 87 Syncro project |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2559
Location: Philly, mang
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| Posted: Mon Oct 15, 2018 4:17 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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i believe i found the workshop manual for it 
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16961
Location: San Diego, California
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| Posted: Mon Oct 15, 2018 8:03 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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Thanks dabaron,
Whatever that means is a big help buddy.
So the Led light comes on when I blip the throttle off idle. The wires hook into a harness connector near the AFM and there is a vacuum hose to a Tee near the intake. Any idea what this thing does?
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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dobryan
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Joined: March 24, 2006
Posts: 16503
Location: Brookeville, MD
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tencentlife
Samba Member
Joined: May 02, 2006
Posts: 10077
Location: Abiquiu, NM, USA
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| Posted: Tue Oct 16, 2018 8:26 am Post subject: Re: 1987 Vanagon Mystery electronics |
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| Steve Arndt wrote: |
| That is the tencent / Rocky Jennings VSM vacuum switching module. |
Vanistan VSM. It was my product.
| Quote: |
| The electronics and case are not made for a HOT/COLD engine compartment environment. |
The design specs anticipated the temps that would be encountered in North America, cold being the more critical factor. A Vanagon engine compartment doesn't reach 160ºF, that's barely warm to electronics. It's normally under 135ºF where the VSM rides.
| Quote: |
| There was a lot of corrosion inside mine when I took it apart to inspect after it quit working. |
What it wasn't was potted, so it is susceptible to water and pollutants. Where it's mounted in the engine bay it's not exposed to much of either. You're the only one to ever mention any damage.
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Steve Arndt
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Joined: August 01, 2005
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Location: Boise, Idaho
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| Posted: Tue Oct 16, 2018 8:48 am Post subject: Re: 1987 Vanagon Mystery electronics |
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Is there a Warranty or support? I wouldn't mind trying to bring it back to life.
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Steve
Steve's 87 Syncro project |
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DanHoug
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Joined: December 05, 2016
Posts: 4775
Location: Bemidji, MN
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| Posted: Tue Oct 16, 2018 9:04 am Post subject: Re: 1987 Vanagon Mystery electronics |
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the Support is to remove the 4 screws holding the lid on and show us a clear picture of the inside! we'll tell ya what is wrong with it and how to fix it!
_________________
-dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
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tencentlife
Samba Member
Joined: May 02, 2006
Posts: 10077
Location: Abiquiu, NM, USA
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| Posted: Tue Oct 16, 2018 10:07 am Post subject: Re: 1987 Vanagon Mystery electronics |
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| Steve Arndt wrote: |
| Is there a Warranty or support? I wouldn't mind trying to bring it back to life. |
My stuff all comes with full warranty and support for one year. You bought yours over 9 years ago. I haven't even sold these in over 4 years.
I had one known failure of the 5V VR chip, that's easy to test with a VOM, or if the chip is very hot it's failed, soldering in a new one will probably fix it. Get the p/n off the chip. The other reported problems were almost all due to the vac tube loosening on the MAP sensor nipple, open the cover and check that. That's about all I can tell you. Like Dan says, it's often easy to see a failed component by just looking inside.
_________________
Shop for unique Vanagon accessories at the Vanistan shop:
https://intrepidoverland.com/vanistan/
Please don't PM here, I will not reply.
Experience is kryptonite to doctrine. |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2559
Location: Philly, mang
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| Posted: Tue Oct 16, 2018 11:30 am Post subject: Re: 1987 Vanagon Mystery electronics |
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| aeromech wrote: |
Thanks dabaron,
Whatever that means is a big help buddy.
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the question was answered, my first thought was it was "the internet" thus my post AFTER the real answer was posted.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16961
Location: San Diego, California
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| Posted: Tue Oct 16, 2018 11:51 am Post subject: Re: 1987 Vanagon Mystery electronics |
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We have enough smart asses here
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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dobryan
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Joined: March 24, 2006
Posts: 16503
Location: Brookeville, MD
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Zeitgeist 13
Samba Member
Joined: March 05, 2009
Posts: 12115
Location: Port Manteau
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| Posted: Tue Oct 16, 2018 12:14 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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I suspect there are a few dumb asses pretending to be smart asses. A wise ass knows how to differentiate between the two.
_________________
Casey--
'89 Bluestar ALH w/12mm Waldo pump, PP764 and GT2052
'01 Weekender --> full camper
y u rune klassik? |
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dabaron
Samba Member
Joined: June 21, 2018
Posts: 2559
Location: Philly, mang
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| Posted: Tue Oct 16, 2018 12:38 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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| aeromech wrote: |
| We have enough smart asses here |
i'll be the dumb ass then.
_________________
1991 Vanagon GL Camper
i had no idea i wanted to be a mechanic
"burnin oil and cookin coils" -- Destructo
BiWerks Design, LLC |
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joetiger 
Samba Member
Joined: January 27, 2005
Posts: 5078
Location: denver
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| Posted: Tue Oct 16, 2018 12:42 pm Post subject: Re: 1987 Vanagon Mystery electronics |
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| dabaron wrote: |
i'll be the dumb ass then. |
I'm already playing that part, but I suppose there's room for more. 
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Joe T.
'86 NAHT Vanagon GL Syncro/ supercharged ABA 2.0 "Pigpen"
'04 GTI 1.8T
'04 Golf R32
"get metaphysical with it. if it's simply a means to get to and from places, it will let you down. if it becomes your zen, it can't fail you." -dabaron
"Still, it's good to be afield."--VWagabond
Available Now! Vanagon to Louisiana--A Two-Lane Reckoning Through Past and Present
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