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Mckinleyvillian
Samba Member
Joined: July 22, 2021
Posts: 506
Location: Macktown, CA
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 Posted: Wed Mar 08, 2023 1:11 pm Post subject: correct throttle body for my 85 1.9? |
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so i'm looking at a used TB and it's advertised as fitting a 76-84... Looks identical, albeit in far better shape than what i've got on my 85 1.9.
I can't find any information that makes sense of 76-84 fitment. does this look proper for the 85 1.9 and is the ad incorrect?
_________________
so many roads i know
all i want is one to take me home
85 Vanagon GL 1.9 stick |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50352
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| Posted: Wed Mar 08, 2023 1:37 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| I used the throttle body off a a '91 on my 83 1/2. Required minor rewiring of the throttle position switch. |
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wcfvw69 
Samba Purist
Joined: June 10, 2004
Posts: 13389
Location: Arizona
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| Posted: Wed Mar 08, 2023 2:52 pm Post subject: Re: correct throttle body for my 85 1.9? |
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I just finished this one-
https://www.thesamba.com/vw/classifieds/detail.php?id=2605619
Ready to go. 
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc
Decades of VW and VW parts restoration experience.
The Samba member since 2004.
**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours**
Last edited by wcfvw69 on Wed Mar 08, 2023 4:59 pm; edited 1 time in total |
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Mckinleyvillian
Samba Member
Joined: July 22, 2021
Posts: 506
Location: Macktown, CA
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| Posted: Wed Mar 08, 2023 3:23 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Wildthings wrote: |
| I used the throttle body off a a '91 on my 83 1/2. Required minor rewiring of the throttle position switch. |
right on. right on. what did the rewiring entail?
_________________
so many roads i know
all i want is one to take me home
85 Vanagon GL 1.9 stick |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50352
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| Posted: Wed Mar 08, 2023 3:59 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Mckinleyvillian wrote: |
| Wildthings wrote: |
| I used the throttle body off a a '91 on my 83 1/2. Required minor rewiring of the throttle position switch. |
right on. right on. what did the rewiring entail? |
Both units use two wires so you just need to figure out what it takes to hook up the early harness to the later unit. Don't remember what I did, but it didn't take much at all to do, just not quite a plug and play, IIRC. |
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ALIKA T3
Samba Member
Joined: July 30, 2009
Posts: 6360
Location: Honolulu,Hawaii and France
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| Posted: Wed Mar 08, 2023 4:16 pm Post subject: Re: correct throttle body for my 85 1.9? |
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Both units can be swapped out.
Early WBX is dual switch and dual vacuum nipple.
Later models ( late 85 and on) had a single switch that does both functions at once. One vacuum nipple.
Wires on the dual switch are just one pair off the main harness and split in 2 pairs.
The single nipple requires a Tee to solve the vacuum routing issue.
I wanna say the 2.1L connection to the intake boot is bigger diameter, but I don't remember for sure.
GoWesty has clear instructions on their TB listing. It's just common sense once you look at it, very simple stuff.
_________________
Silicone Steering Boots and 930 Cv boots for sale in the classifieds.
Syncro transmission upgrade parts in the Classifieds.
Subaru EJ22+UN1 5 speed transmission
http://www.thesamba.com/vw/forum/viewtopic.php?t=416343
Syncro http://www.thesamba.com/vw/forum/viewtopic.php?t=4...num+gadget |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50352
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| Posted: Wed Mar 08, 2023 5:27 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| ALIKA T3 wrote: |
Both units can be swapped out.
Early WBX is dual switch and dual vacuum nipple.
Later models ( late 85 and on) had a single switch that does both functions at once. One vacuum nipple.
Wires on the dual switch are just one pair off the main harness and split in 2 pairs.
The single nipple requires a Tee to solve the vacuum routing issue.
I wanna say the 2.1L connection to the intake boot is bigger diameter, but I don't remember for sure.
GoWesty has clear instructions on their TB listing. It's just common sense once you look at it, very simple stuff. |
Doesn't one nipple have manifold vacuum and the other ported vacuum on a 1.9L? That would be required to get the vacuum retard function to work properly. I know I have bolted both the 1.9L and the late 2.1L throttle bodies to the same plenum, but can't say what year plenum it is as my engine is a hodge podge of stuff from both a 1.9L and a 2.1L. |
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wcfvw69
Samba Purist
Joined: June 10, 2004
Posts: 13389
Location: Arizona
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| Posted: Wed Mar 08, 2023 5:45 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Wildthings wrote: |
| ALIKA T3 wrote: |
Both units can be swapped out.
Early WBX is dual switch and dual vacuum nipple.
Later models ( late 85 and on) had a single switch that does both functions at once. One vacuum nipple.
Wires on the dual switch are just one pair off the main harness and split in 2 pairs.
The single nipple requires a Tee to solve the vacuum routing issue.
I wanna say the 2.1L connection to the intake boot is bigger diameter, but I don't remember for sure.
GoWesty has clear instructions on their TB listing. It's just common sense once you look at it, very simple stuff. |
Doesn't one nipple have manifold vacuum and the other ported vacuum on a 1.9L? That would be required to get the vacuum retard function to work properly. I know I have bolted both the 1.9L and the late 2.1L throttle bodies to the same plenum, but can't say what year plenum it is as my engine is a hodge podge of stuff from both a 1.9L and a 2.1L. |
Yes, that throttle body also has the hole in the throttle plate for the bypass so it idles correctly when the plate is closed and the canister retards the timing.
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc
Decades of VW and VW parts restoration experience.
The Samba member since 2004.
**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours** |
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ALIKA T3
Samba Member
Joined: July 30, 2009
Posts: 6360
Location: Honolulu,Hawaii and France
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| Posted: Wed Mar 08, 2023 6:04 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Wildthings wrote: |
| ALIKA T3 wrote: |
Both units can be swapped out.
Early WBX is dual switch and dual vacuum nipple.
Later models ( late 85 and on) had a single switch that does both functions at once. One vacuum nipple.
Wires on the dual switch are just one pair off the main harness and split in 2 pairs.
The single nipple requires a Tee to solve the vacuum routing issue.
I wanna say the 2.1L connection to the intake boot is bigger diameter, but I don't remember for sure.
GoWesty has clear instructions on their TB listing. It's just common sense once you look at it, very simple stuff. |
Doesn't one nipple have manifold vacuum and the other ported vacuum on a 1.9L? That would be required to get the vacuum retard function to work properly. I know I have bolted both the 1.9L and the late 2.1L throttle bodies to the same plenum, but can't say what year plenum it is as my engine is a hodge podge of stuff from both a 1.9L and a 2.1L. |
You get the other one from the plenum nipple close to the brake booster connection. Then both have a tee.
Again, GW has clear instructions. Here's the link https://gowesty.com/products/gowesty-throttle-valve-housing
_________________
Silicone Steering Boots and 930 Cv boots for sale in the classifieds.
Syncro transmission upgrade parts in the Classifieds.
Subaru EJ22+UN1 5 speed transmission
http://www.thesamba.com/vw/forum/viewtopic.php?t=416343
Syncro http://www.thesamba.com/vw/forum/viewtopic.php?t=4...num+gadget |
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Andymon
Samba Member
Joined: February 24, 2015
Posts: 314
Location: Medford, OR
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| Posted: Wed Mar 08, 2023 6:07 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Mckinleyvillian wrote: |
so i'm looking at a used TB and it's advertised as fitting a 76-84... Looks identical, albeit in far better shape than what i've got on my 85 1.9.
I can't find any information that makes sense of 76-84 fitment. does this look proper for the 85 1.9 and is the ad incorrect?
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Got mine for our 85 from buslab.com https://www.buslab.com/product-p/gvw-tb-df-n.htm
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"Blanch" '85 Westy
"Too many freaks and not enough circuses". |
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 9810
Location: Mt Lemmon, AZ
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| Posted: Thu Mar 09, 2023 6:44 am Post subject: Re: correct throttle body for my 85 1.9? |
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I'll bite... Is there any advantage (other than availability) to using a Digifant TB on a 1.9 engine?
The Digijet unit certainly makes it easy to adjust the throttle position switches. |
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jlrftype7
Samba Member
Joined: July 24, 2018
Posts: 3582
Location: Chicago
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| Posted: Thu Mar 09, 2023 7:26 am Post subject: Re: correct throttle body for my 85 1.9? |
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Here's our rebuilt '84 1.9 throttle body with the earlier double switch set-up for comparison. The only issue with that one for sell that you pictured, is you don't know throttle shaft play, and how worn the bore is in relation to the plate either. It's been glass beaded or media blasted, so it's clean at least...
Is yours is the '85 single switch, and not the double switch like the one in that AD?
_________________
'68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
84 Tin Top - Hilga....Auto |
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Mckinleyvillian
Samba Member
Joined: July 22, 2021
Posts: 506
Location: Macktown, CA
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| Posted: Thu Mar 09, 2023 10:37 am Post subject: Re: correct throttle body for my 85 1.9? |
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| jlrftype7 wrote: |
Here's our rebuilt '84 1.9 throttle body with the earlier double switch set-up for comparison. The only issue with that one for sell that you pictured, is you don't know throttle shaft play, and how worn the bore is in relation to the plate either. It's been glass beaded or media blasted, so it's clean at least...
Is yours is the '85 single switch, and not the double switch like the one in that AD? |
Im thinking similarly, but at a low low price and a working claim from a used parts vendor with excellent feedback, i may give it a go.
My van has the double switch as is featured in the photo.
I would ideally buy a remanned TB but 3-400 bucks isnt in my pocket to be spent at this time.
_________________
so many roads i know
all i want is one to take me home
85 Vanagon GL 1.9 stick |
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| Back to top |
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jlrftype7
Samba Member
Joined: July 24, 2018
Posts: 3582
Location: Chicago
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| Posted: Thu Mar 09, 2023 11:19 am Post subject: Re: correct throttle body for my 85 1.9? |
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| Mckinleyvillian wrote: |
Im thinking similarly, but at a low low price and a working claim from a used parts vendor with excellent feedback, i may give it a go.
My van has the double switch as is featured in the photo.
I would ideally buy a remanned TB but 3-400 bucks isnt in my pocket to be spent at this time. |
Understand about the money- Once you buy that one, check the switches with a Meter to make sure they work, and there isn't high resistance in the switches either- hopefully media grit didn't get slammed into the switches when the throttle body was blasted.
A new seal for the connection to the intake plenum is a must if yours is really old.
_________________
'68 Westy- my first VW and vehicle/Bus- long gone.- sold it to a traveling Swiss couple....
'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
84 Tin Top - Hilga....Auto |
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Pascal
Samba Member
Joined: January 13, 2006
Posts: 825
Location: Fredericton, NB, Canada
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| Posted: Sun Mar 12, 2023 4:45 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Mckinleyvillian wrote: |
so i'm looking at a used TB and it's advertised as fitting a 76-84... Looks identical, albeit in far better shape than what i've got on my 85 1.9.
I can't find any information that makes sense of 76-84 fitment. does this look proper for the 85 1.9 and is the ad incorrect? |
IIRC, 85 had both the single and dual switch TB which is why you are not making sense of the figment years. If yours has the double switch like the one pictured then its plug and play. I suspect the early 85s has the leftover TBs from the 84 production year.
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'84 Westy - 2.2wbx, GT Torque-Biasing Differential
'91 EA Cabby |
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ALIKA T3
Samba Member
Joined: July 30, 2009
Posts: 6360
Location: Honolulu,Hawaii and France
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| Posted: Sun Mar 12, 2023 8:50 pm Post subject: Re: correct throttle body for my 85 1.9? |
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| Pascal wrote: |
| Mckinleyvillian wrote: |
so i'm looking at a used TB and it's advertised as fitting a 76-84... Looks identical, albeit in far better shape than what i've got on my 85 1.9.
I can't find any information that makes sense of 76-84 fitment. does this look proper for the 85 1.9 and is the ad incorrect? |
IIRC, 85 had both the single and dual switch TB which is why you are not making sense of the figment years. If yours has the double switch like the one pictured then its plug and play. I suspect the early 85s has the leftover TBs from the 84 production year. |
That's what I mentioned earlier in this thread.
_________________
Silicone Steering Boots and 930 Cv boots for sale in the classifieds.
Syncro transmission upgrade parts in the Classifieds.
Subaru EJ22+UN1 5 speed transmission
http://www.thesamba.com/vw/forum/viewtopic.php?t=416343
Syncro http://www.thesamba.com/vw/forum/viewtopic.php?t=4...num+gadget |
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