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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12728 Location: on a bike ride somewhere
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Posted: Sun Dec 16, 2012 11:31 pm Post subject: accelerator cable guide tube through T1 fan shroud |
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After digging through 50+ search threads, I could not find information on this.
I had a miserable time replacing my accelerator cable after an engine R&R this weekend, and I think I found out why. In the center of this picture, there is a metal guide tube for the cable that goes through the fan shroud and allows the cable to be pushed through to the carb linkage:
(pic stolen from desertbusman's gallery page)
Is this standard on any engine? An aftermarket part? After fighting with the cable through the firewall grommet trying to fish it blindly through the shroud, I stuck a bendy straw through my fan shroud and had a buddy push the cable through. (It worked GREAT!) But I'm worried that the cable is rubbing on the shroud and it may break soon. I can't image that everyone replaces their cable by getting lucky threading it through the black depths of the fan shroud… Is this a stock part, or does everybody else just let it rub? _________________ Learn how your vintage VW works. And why it doesn't!
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Desertbusman Samba Member
Joined: June 03, 2005 Posts: 14655 Location: Arizona
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Posted: Sun Dec 16, 2012 11:56 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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asiab3 wrote: |
Is this a stock part, or does everybody else just let it rub? |
Yes, it's a very stock part. On T-1's bugs and buses. Prevents air leaks but mainly a shroud exit guide so the cable doesn't saw a slot in the shroud. I think it might be P/N 113-721-551.
Now the rest of the story- Between where that protrudes forward thru the front tin and the integral steel cable tube exiting the rear of the chassis is another item. A flex tube just like the clutch Bowden tube except smaller diameter for the throttle cable. It slips on at both ends. So what that means is the cable is fully enclosed in a guide all the way until it exits the shroud in front of the carb.
Off hand I don't see it listed. Our amazing Karl of past fame is whom I got mine from. As far as the tube thru the shroud about every supplier should have them. _________________ 71 Superbug
71 Westy |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12728 Location: on a bike ride somewhere
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Posted: Mon Dec 17, 2012 12:01 am Post subject: |
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I'll put that drinking straw in place as a temporary guide, and I'll get to ordering the tube tomorrow! Thanks AGAIN
EDIT: after all my samba searching, a google search ended up with the prize:
http://www.vw-resource.com/accelerator_cable.html
Part number (according to AutohausAZ) shows: 043-129-893 _________________ Learn how your vintage VW works. And why it doesn't!
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Tom Powell Samba Member
Joined: December 01, 2005 Posts: 4855 Location: Kaneohe
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Posted: Mon Dec 17, 2012 12:28 am Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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asiab3 wrote: |
... I can't image that everyone replaces their cable by getting lucky threading it through the black depths of the fan shroud ... |
When replacing a clutch or throttle cable I tie a length of stout string to the end of the old cable and use that as bread crumbs to mark the path and to pull the new cable through. I don't think I have any grommets or covers on my throttle cable tube and it has been held in place by hose clamps for thirty years.
Aloha
tp |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12728 Location: on a bike ride somewhere
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Posted: Mon Dec 17, 2012 12:29 am Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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Tom Powell wrote: |
I don't think I have any grommets or covers on my throttle cable tube and it has been held in place by hose clamps for thirty years.
Aloha
tp |
That makes me feel better about using a bendy-straw!
I got the cable through with no problem, thanks to the 50+ threads here about that _________________ Learn how your vintage VW works. And why it doesn't!
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Tom Powell Samba Member
Joined: December 01, 2005 Posts: 4855 Location: Kaneohe
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Posted: Mon Dec 17, 2012 12:36 am Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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asiab3 wrote: |
Tom Powell wrote: |
I don't think I have any grommets or covers on my throttle cable tube and it has been held in place by hose clamps for thirty years.
Aloha
tp |
That makes me feel better about using a bendy-straw!
I got the cable through with no problem, thanks to the 50+ threads here about that |
Until you get the proper part you might consider a short piece of copper tubing and hose clamps. It will be a bit loose in the shroud and the play will prevent wear on the cable.
Aloha
tp |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12728 Location: on a bike ride somewhere
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Posted: Mon Dec 17, 2012 12:38 am Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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Tom Powell wrote: |
Until you get the proper part you might consider a short piece of copper tubing and hose clamps. It will be a bit loose in the shroud and the play will prevent wear on the cable.
Aloha
tp |
That sounds like a better idea. On Rob and Dave's page, they tried JB welding the tube into place, but found out that VW designed it to ride loose. That way when the engine twists and turns itself through heavy acceleration, the guide tube can follow the cable and self-adjust. When Rob/Dave JB welded the tube in, it lost that flexibility and rubbed more. I think it's also nice to have it loose so the cable can move slightly when the throttle arm makes its circumference around the throttle shaft.
my $.02… _________________ Learn how your vintage VW works. And why it doesn't!
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Desertbusman Samba Member
Joined: June 03, 2005 Posts: 14655 Location: Arizona
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Posted: Mon Dec 17, 2012 1:44 am Post subject: |
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The rigid tube thru the front tin and fan shroud is # 043-129-893 @ BAP, EMPI, Chirco and BusBoys. Some places list it as 111-129-894. Most places call it a Throttle Cable Tube and some call it an Accelerator Cable Guide.
You can see in my pic how I use a little fuel line clamp to hold it in position to keep it from walking to the rear. And I also put a spare rubber grommet on it to make doing the clamp a bit easier.
Now the Flex Cable Guide is more tricky to find. I don't know the P/N. All the suppliers show a picture of the ones used on bugs. And the bus one is identical except evidently a different length. You can get along without it for a while but keep it in mind. It so much better guides the cable into the front of the shroud cable tube, and keeps the greased cable free of dirt.
The ends look like this-
I lost mine, couldn't find info on a replacement, and asked the Samba's Karl. He knew what they are and sent me one. Then later found my lost one but you can't have it
Another tio- Once you get the guide tube you can gently bend it in a big curvature to best suit the exit in front of the carb to reduce wear. Liberally greas it. My hose clamp and the rubber washer hold it all the way forward so it doesn't move. Next time you talk to Rob & Dave tell them that they need new trans and engine mounts to keep their engine from flopping around _________________ 71 Superbug
71 Westy |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51153 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Mon Dec 17, 2012 8:18 am Post subject: |
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Most hardware stores that have plumbing supplies sell a stiff milky white plastic tubing by the foot or short roll, it's similar to PEX but smaller diameter for icemakers, etc.. There's 2 sizes and I always get the wrong one when shopping by eyeball but one size is a perfect slip fit over the body tube and shroud guide (3/8" I think), it's slippery like Nylon and replaces the flex tube perfectly. Having the tube in place makes cable changes effortless as you just shove it in from the front and it magically emerges at the carb, no fising around over the transmission. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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Tom Powell Samba Member
Joined: December 01, 2005 Posts: 4855 Location: Kaneohe
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Posted: Mon Dec 17, 2012 9:21 am Post subject: |
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What has happened to the purity and sanctity of this forum?
DBM and busdaddy are suggesting hacks.
This is not in the Bentley.
Aloha
tp |
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bigbore Samba Member
Joined: December 19, 2003 Posts: 3297 Location: Wasilla Alaska
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Posted: Mon Dec 17, 2012 9:44 am Post subject: |
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Tom Powell wrote: |
What has happened to the purity and sanctity of this forum?
DBM and busdaddy are suggesting hacks.
This is not in the Bentley.
Aloha
tp |
Because you can't get that tube anymore so a replacement has to be found I have been pulling those tubes from bus's when I find them they are missing in alot of them nice to here about something that will work in its place. _________________ where its cold and snowy |
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dirtkeeper Samba Member
Joined: February 19, 2008 Posts: 3200 Location: Left of everywhere
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Posted: Mon Jan 04, 2021 10:56 am Post subject: |
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bigbore wrote: |
Tom Powell wrote: |
What has happened to the purity and sanctity of this forum?
DBM and busdaddy are suggesting hacks.
This is not in the Bentley.
Aloha
tp |
Because you can't get that tube anymore so a replacement has to be found I have been pulling those tubes from bus's when I find them they are missing in alot of them nice to here about something that will work in its place. |
Is the accelerator cable tube frome the body to the engine for a 1970 bus unobtantuim or Am I not searching correctly? Seems would be simple part. But I cannot find |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12728 Location: on a bike ride somewhere
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Posted: Mon Jan 04, 2021 11:10 am Post subject: |
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dirtkeeper wrote: |
Is the accelerator cable tube frome the body to the engine for a 1970 bus unobtantuim or Am I not searching correctly? Seems would be simple part. But I cannot find |
Those tubes have been NLA for a while. I suggest lawn mower or tractor throttle cable tubing; bike brake or derailleur cable is usually too small inside.
Bug is a few inches shorter than bus, I think, so swapping doesn't usually work either.
Robbie _________________ Learn how your vintage VW works. And why it doesn't!
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Mon Jan 04, 2021 11:10 am Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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113-129-893a _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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kreemoweet Samba Member
Joined: March 13, 2008 Posts: 3899 Location: Seattle, WA
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Posted: Mon Jan 04, 2021 1:07 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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dirtkeeper wrote: |
Is the accelerator cable tube frome the body to the engine for a 1970 bus unobtantuim or Am I not searching correctly? Seems would be simple part. But I cannot find |
I think it's highly questionable if any such VW part ever existed. There's no mention that I know of in any VW parts list or illustration I've seen.
The cable seems to be in a very protected spot up there above the trans. I've never seen so much as a drop of water or dirt on that cable
up there, and I drive around in a place sometimes called Rain City.
They've been found on some busses, but I think it likely it's because some P.O. put it there, perhaps using the VW parts used on other vehicle types,
such as the 113-721-551 (600 mm) or 131-721-551 (610 mm). Both those conduits are being sold at various VW parts suppliers. _________________ '67 bug: seized by the authorities
'68 bug: seized by the authorities
'71 kombi: not yet seized by the authorities
Stop dead photo links! Post your photos to The Samba Gallery! |
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bigbore Samba Member
Joined: December 19, 2003 Posts: 3297 Location: Wasilla Alaska
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Posted: Mon Jan 04, 2021 2:04 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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they exist both my bus's ( 70 and 71) I have had over 20 of them and most all had them I believe the ones that didn't people removed them. _________________ where its cold and snowy |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Mon Jan 04, 2021 4:52 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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my 1971 had one of the bicycle cable type outer housings. It also had the tube that I put in a part number for. My 1977 has one but it is a type 4 engine. Took me 1 minute to find either early part in the fiche. What is up with y'all? New Year blues?????
Hey BigBore - really nice to see you posting again.
113-129-893a
211-721-551 A
https://evamclassic.com/products/view/gaskabel-bui...-721-551-A
_________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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dirtkeeper Samba Member
Joined: February 19, 2008 Posts: 3200 Location: Left of everywhere
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Posted: Mon Jan 04, 2021 8:23 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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I was looking for the long one not the short one through the engine.
That second picture above is the item
Took a suggestion above and found some 1/2 “ by 3/8” ID tubing in my bin. fit perfect at the engine and body ends. Put a little wire on To stiffen it up . Went with 22” will slip in both ends tight.
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bigbore Samba Member
Joined: December 19, 2003 Posts: 3297 Location: Wasilla Alaska
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Posted: Mon Jan 04, 2021 8:59 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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hi Steve ya still breathing despite myself just alot medical problems. still doing tranys I just finished two (at the same time) vanagon syncro's that paid nice so I can take some down time. _________________ where its cold and snowy |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Mon Jan 04, 2021 10:00 pm Post subject: Re: accelerator cable guide tube through T1 fan shroud |
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bigbore wrote: |
hi Steve ya still breathing despite myself just alot medical problems. still doing tranys I just finished two (at the same time) vanagon syncro's that paid nice so I can take some down time. |
cool _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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