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jocoman
Samba Member
Joined: August 11, 2016
Posts: 427
Location: Ottawa, Canada
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 Posted: Wed Jan 11, 2017 6:46 pm Post subject: Throttle body replacement recommendation. |
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Hi folks.
I found the culprit to my idle problems. Surprise surprise its the throttle switch.
It is not closing at idle. I also noticed that there is no adjustment left most likely due to wear. So I have 2 questions
1. Is there a step by step procedure for throttle body removal. Bentley is not too helpful.
2. I suspect I will find significant wear on this original TB once I have it removed. I notice both Gowesty and VanCafe sell replacement TB's.
Any comments on the quality and effectiveness of either replacement part?
Or does one look better based on the companies description?
Love this forum. Thanks
Gowesty TB
http://www.gowesty.com/product-details.php?id=23904
Van Cafe TB
http://www.van-cafe.com/home/van/page_1131_1443/rebuilt-throttle-body.html |
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AZ Landshaper
Samba Member
Joined: February 08, 2009
Posts: 1698
Location: The Old Pueblo
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| Posted: Wed Jan 11, 2017 7:35 pm Post subject: Re: Throttle body replacement recommendation. |
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Have yours rebuilt. Whip618 does a fantastic job on throttle bodies. BTDT. You won't regret it.
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85 Weekender w/ EJ22
Previously
64, 71, 72, 73, 76, 81, 84, 85 & 87 Campmobiles and Westfalias
and a 67 bug. |
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DometicLover
Samba Member
Joined: August 06, 2013
Posts: 70
Location: Montréal
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| Posted: Wed Jan 11, 2017 7:51 pm Post subject: Re: Throttle body replacement recommendation. |
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There's only 2 Phillips screws holding the TB.
Remove the Air Box and Intake Boot. Disconnect Throttle Cable and Vacuum Hose and unscrew the two bolts. It takes between 5 minutes or couples hours depending of the state of the screws...
As far as I know Vancafe TB doesn't come with new switch.
GoWesty make no mentions of new seal, only ''sealed ball bearing''. Maybe someone could confirm...
I don't want to start a debate but from my personal experience Vancafe sells superior products
Don't forget to buy the TB to plenum seal! |
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syncrodoka
Samba Member
Joined: December 27, 2005
Posts: 12005
Location: Santa Cruz, CA
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| Posted: Wed Jan 11, 2017 8:15 pm Post subject: Re: Throttle body replacement recommendation. |
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| I had a worn throttle body that had enough movement in the pivot that the throttle switch would only work correctly intermittently- drove me crazy. Installed a unit from VC and the idle improved dramatically, the throttle switch worked perfectly from then on as well. |
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dyldebus
Samba Member
Joined: August 11, 2015
Posts: 171
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| Posted: Wed Jan 11, 2017 9:14 pm Post subject: Re: Throttle body replacement recommendation. |
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When I had the 2.1 my TB started sticking open during a multi day trip. At every stop I had to spike the throttle to get it to close.
I went with the GoWesty TB and the swap took a total of ten minutes and worked perfectly. Can't speak for the van cafe unit but it sounds like you're safe with either. |
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dart330
Samba Member
Joined: July 19, 2004
Posts: 454
Location: Houston, TX
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Mellow Yellow 74
Samba Member
Joined: October 14, 2014
Posts: 1615
Location: Sydney, Australia
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| Posted: Thu Jan 12, 2017 5:02 am Post subject: Re: Throttle body replacement recommendation. |
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If the throttle position switch is not working because it is worn, why do you want to replace the throttle body? Unless there is an obvious problem with the throttle body, I would just replace the switch. The original type are NLA but Van cafe have an aftermarket switch and GoWesty have a vacuum TPS.
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1962 Karmann Ghia
1974 Deluxe Microbus
1985 Caravelle (Vanagon) |
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dart330
Samba Member
Joined: July 19, 2004
Posts: 454
Location: Houston, TX
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| Posted: Thu Jan 12, 2017 7:03 am Post subject: Re: Throttle body replacement recommendation. |
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| If you are still rocking your original throttle body, I think you would be surprised how much a new one improves your throttle response. Everyone sticking to the WBX should install a rebuilt unit. |
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SteveMc
Samba Member
Joined: December 19, 2013
Posts: 210
Location: Alberta, Canada
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pablum
Samba Member
Joined: December 17, 2015
Posts: 562
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| Posted: Fri Jan 13, 2017 8:19 am Post subject: Re: Throttle body replacement recommendation. |
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Pics please, because I can't fathom why you would replace the TB when it's the TPS that needs renewal.
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The wise man learns from history, the fool from experience.
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I see [a cat] in the street and i aim for the pest with my car. --  bluebus86 |
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jocoman
Samba Member
Joined: August 11, 2016
Posts: 427
Location: Ottawa, Canada
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| Posted: Fri Jan 13, 2017 8:24 am Post subject: Re: Throttle body replacement recommendation. |
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Thanks for all the input!
I have been able to locate a supposedly good used TB locally for a reasonable price. My plan is to remove mine and then do a thorough inspection for wear of both of them and then reassess. (Good to have a spare) Since the van is not going anywhere for a while (under snow) I can tinker with this. Might be able to do my own rebuild 
So I'm sure I'll have more questions as I pursue this. I'm just so happy I have found the problem with the idle. Diagnosis is half the battle.
Thanks again for all the great input! |
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SCM
Samba Member
Joined: January 26, 2011
Posts: 3115
Location: Bozeman MT
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| Posted: Fri Jan 13, 2017 9:01 am Post subject: Re: Throttle body replacement recommendation. |
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Ah, it looks like 10c / Vanistan is no longer offering his TB. RJE has bebuilt units too but not as hi-zoot as the old Vanistan units.
I have a small leak in my TB shaft that causes high idle, especially when cold. I agree, it seems like a good idea to swap in a rebuilt unit if you're messing around there anyway and have the $ to spare.
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'91 Westfalia GL Automatic (GTA "Turbo" Rebuild w/Peloquin) and 2.3L GoWesty Engine |
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jberger
Samba Member
Joined: November 17, 2003
Posts: 2476
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| Posted: Fri Jan 13, 2017 9:16 am Post subject: Re: Throttle body replacement recommendation. |
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| The benefit from a rebuilt throttle body is the action of the throttle. When you install bearings at the shaft, the butterfly is able to move easily and consistently every time. Years ago I was not happy with the rebuilt units available (they had vacuum leaks worse than the original) and was able to come up with my own improved solution. Not sure if this is still the case with the current new or rebuilt TB's. |
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seventyfo
Samba Member
Joined: February 13, 2007
Posts: 916
Location: Ocoee FL
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| Posted: Fri Jan 13, 2017 2:15 pm Post subject: Re: Throttle body replacement recommendation. |
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I've seen one of Frank's, I'd go with any of the other offerings.
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85 Vanagon GL Westy GW 2.2 (Rebuilt by YT)
"I don't know you well enough to care about your comments". Watkins Cravey |
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t3 kopf
Samba Member
Joined: October 22, 2012
Posts: 1115
Location: over by 'der
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| Posted: Sat Jan 14, 2017 5:49 am Post subject: Re: Throttle body replacement recommendation. |
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The throttle bodies being built by Rocky Jennings are top notch. Ill always recommend him.
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Jim Hunter
Samba Member
Joined: February 14, 2014
Posts: 107
Location: MB, Slovenjia
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| Posted: Sat Jan 14, 2017 6:02 am Post subject: Re: Throttle body replacement recommendation. |
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| t3 kopf wrote: |
| The throttle bodies being built by Rocky Jennings are top notch. Ill always recommend him. |
+1 Rocky is the best for WBX parts and work !
http://www.thesamba.com/vw/classifieds/detail.php?id=1342947 |
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jocoman
Samba Member
Joined: August 11, 2016
Posts: 427
Location: Ottawa, Canada
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| Posted: Sun Jan 15, 2017 2:32 pm Post subject: Re: Throttle body replacement recommendation. |
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Hi. I'm the original poster. I got my TB out of the van today. (this van is new to me and I don't have any history).
So, the bottom cover was missing,  the cam is quite worn and at the end of adjustment and the micro switch itself is sluggish especially when it gets cold.
The throttle body itself seems not too bad. I can see light aorund the throttle plate when I hold it up to the light though.
Questions:
1) Does anyone know of a source for the cam? I came a cross it once but can no longer find it.
2) can just the microswitch be replaced? If so, where can I source that part. (I'm pretty sure the answer is that it is not available no where, no how). If the switch is not available are my only choices to buy the after market kits that van cafe and go westy sell? Any preferences?
3) When I hold the TB up to the light I can see light around the butterfly. From my reading, this should not be the case. Can that be adjusted out or is a replacement necessary.
Thanks everyone. I tried to do my homework on this but some of the older posts no longer have the associated images) |
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Ahwahnee
Samba Member
Joined: June 05, 2010
Posts: 9800
Location: Mt Lemmon, AZ
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| Posted: Sun Jan 15, 2017 4:16 pm Post subject: Re: Throttle body replacement recommendation. |
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| jocoman wrote: |
| ...3) When I hold the TB up to the light I can see light around the butterfly. From my reading, this should not be the case. Can that be adjusted out or is a replacement necessary. |
I think some light at each side is normal and up around 2:00 is a gap where the big adjustment screw sits to allow the 'leakage' to be greater as an idle adjustment.
I don't think it needs to (or should) be totally light tight - else why would they have drilled that big hole in it?
But I'm no TB expert. Post a photo and someone else may be one. |
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T3 Pilot
Samba Member
Joined: January 10, 2011
Posts: 1507
Location: Deep South of the Great White North
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Slimvest
Samba Member
Joined: March 20, 2014
Posts: 431
Location: Portland, OR
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| Posted: Sun Sep 03, 2017 9:03 am Post subject: Re: Throttle body replacement recommendation. |
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New version from GoWesty. All new, not rebuilt, it looks like. Their own anodized billet housing. I've been playing with used TBs trying to improve performance, but this one looks nice. No core charge either.
http://www.gowesty.com/product-details.php?v=&id=24718
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