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1971 VW BUS

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SUNSHINE

07-29-2002 09:25:03




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OK ANY IDEAS? I JUST GOT THE 1971 DELUXE BUS FOR MY BIRTHDAY AND RUNNING AT SPEED IS FINE BUT THE BUS WONT IDLE IT JUST DIES. WHEN I BEGIN TO SLOW DOWN IT STARTS TO BOG, I CAN GIVE IT GAS AND IT WILL STAY RUNNING FOR AS LONG AS MY FOOT IS ON THE PEDAL.I HAVE CHANGED PLUGS, WIRES AND DISTRIBUTOR CAP, AND CLEANED CARB.




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R.M. In AL

07-29-2002 20:08:22




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
Hello Sunshine.I have a 1973 sedan and have had the problem you describe.It sounds like the Idle Cutoff is not working.It could be that the wire going to it is off or broken somewhere.The cutoff valve is located at the bottom of the carb.on the left side next to the coil.Im not sure if your engine is the same as mine.Some of those buses were different.Let us know what you found and good luck..R.M. In AL.

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Ed Stembridge

07-29-2002 16:02:16




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
So that this remains "on topic" , I *do* have an 8N, and recently had to rebuild the carb due to the thing stalling out under load (trash in the carb)... Soaked it in "carb dip" for 2 days, which cleaned it right out. Been working fine ever since. Where does all that dirt in the glass bowl come from anyway?

Also used to own a '71 bus (how's that for a segue?). Ditto the comments on carb overhaul, checking for vacuum leaks, etc. You might also try checking your points gap - All three aircooled VWs I've owned tended to drift fairly rapidly (with the Bosch 009 distributor), which would affect idle when it got bad enough.

If you don't have the John Muir book (How to Keep Your Volkswagen Alive), go get a copy. It's written for non-mechanically-minded folks and is pretty easy to follow. Also check out>Link

es

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Ed Gooding (VA)

07-29-2002 14:09:28




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
Those Solex single barrel carb's were a pain in the butt! However, the first thing you need to do on any air cooled V-dub engine is check the valves. You need to adjust them with EVERY oil change, but the vast majority of owner's never do. The exhaust valve on #3 cylinder is the weakest link, because it runs about 75° hotter than the other side of the engine, because the air goes through the oil cooler before it gets to the #3 & 4 cylinders. This is the one that usually breaks off and beats a hole through the piston.

If your valves are adjusted correctly, and you have acceptable compression, then you probably need to rebuild the carb, not just clean it. Also make sure you don't have any intake leaks. Check the connections between the intake manifold and the heads first. Are you getting any back-firing when you let off the gas and the engine revs down?

Hang in there. We'll see if we can't get you idling properly.

Regards..... ..... ..... Ed
'65 VW I-Gas dragster(12.5 in the quarter, NOT the 1/8th)
'72 VW Kombi bus (type 4 engine with dual singles - you want to talk a really sucky carb setup!!!)

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buck

07-29-2002 19:02:45




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 Re: Re: 1971 VW BUS in reply to Ed Gooding (VA), 07-29-2002 14:09:28  

Ed What was the name of your dragster? I went to the Bug Out at Manassas quite often back in the late 80's and early 90's and may have seen you run. Was always interesting to see how many NHRA titles the Vdubs were holding back then and watching that 4 banger walk the chalk on a big chevy was great. The VW seen was big time in Richmond.



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Ed Gooding (VA)

07-30-2002 04:09:12




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 Re: Re: Re: 1971 VW BUS in reply to buck, 07-29-2002 19:02:45  
Hey Buck. I never put a name on mine. Used to run it at Aquasco Speedway and Bud's Creek Dragstrip, but this was in the '68-72 timeframe. Used to frequently go up against a loud purple V-dub, named Teeny Screamer. Was owned, built and driven by a guy who owned a Mobil gas station on Lee Highway in Arlington, VA. I believe the best he ever turned (at least that I knew about) was a 12.2 in that little booger. These engines began life as stock, 1600cc grocery getter engines, but ended up as 2200cc screamers with stroker cranks, Weber roller cams, twin Weber 48IDA 2-barrel carbs, tricked out heads, close ratio 3rd and 4th gears, and tons of other goodies. This was the hey-day of V-dubs, and of course it started in So. CA with companies like EMPI, who had their way-cool "Inch Pincher" drag car. The first mod that I ever did to my '65 was to swap in some EMPI headers, a Bosch .009 centrifugal advance distributor (later traded up for a Mallory dual-point), a 2-barrel chromed intake and a Holley 2-barrel off of a flathead Ford engine. The sucker was waaay over-carb'ed, and that's where I started learning about balancing your mods, and I picked up a set of .043 dual port heads (yep, had to buy a new intake), an EMPI cam and bigger jugs. Really caught the fever and, several evolutions later, finally started right with a brand new, 1600cc block and went from there. Experienced speed guys had tried to advise me not to try and build the stock 1200cc engine in my '65, and they were right. With the 1600cc and a little machine work on the case, you could bolt on some 1900cc jugs, and then drop in a stroker crank if you really wanted to get some displacement to work with. Really had a blast back then and got to relive it with my younger son, when he brought home an adopted '71 beat orange beetle, that we turned into a street dune buggy. Sold that after we had our fun and he found a really sweet '73 yellow beetle that we mildly souped the engine on, but left stock otherwise and he drove that for several years. A lot of really good memories with those little air-cooled engines!

Regards..... ..... Ed
'52 8N475798

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dave#1

07-29-2002 17:59:37




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 Re: Re: 1971 VW BUS in reply to Ed Gooding (VA), 07-29-2002 14:09:28  
VW ?, Bus? are you now going to tell me that you had long hair,bell bottoms and beads???.....Do I know you?????Who are you?, you,you "Hippy boy"

ROFL

Only kidding my friend (I think) You got mid 12's out of a VW ? That's cool. Tell me you have some pics, got'a see them.

take care.

later"Far out"dave



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buck

07-29-2002 13:32:24




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  

You said you cleaned the carb so I assume that you have a single carb setup but still not sure which. Considering that it runs well in all conditions except idle you have one of three problems. 1 intake manifold leak. 2 antidiesel valve is not working correctly and 3 dirty or clogged idle circuit in the carb. Like someone else mentioned a good valve adjustment an compression check must indicate that all is right in the cylinder department before any tune up type work is reliable

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Willy-N

07-29-2002 14:02:46




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 Re: Re: 1971 VW BUS in reply to buck, 07-29-2002 13:32:24  
With all the VWs I have owned it all has to be right to idle right. Manofold leaks are common along with valves out of adjustment. Carbs if two need to be balance, if not they need to adjusted right. Loose head bolts are a problem too. The timing has to be just right and points adjusted right. The VW engines stock have no spare hp and need to be in specs or they just don't run right. They love to viberate them selves loose and out of adjustment and need constant tinkering like the Ns do. But when it is all correct they are a great motor! Mark H.

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Evil Steve

07-29-2002 10:13:56




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
All right guys, be nice although I agree this belongs elsewhere.

In answer to the question, the FOUR Solex 1 bbl carbs on these damn things are notorious for this exact problem.

Make something hippyish like flower pots out of 'em and replace your manifold and carb system with a Weber twin intake manifold and twin 2 bbl carb setup.

Peace man.



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SUNSHINE

07-29-2002 10:38:15




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 Re: Re: 1971 VW BUS in reply to Evil Steve, 07-29-2002 10:13:56  
ES I KNOW MY QUESTION DOES NOT GO HERE, BUT I WAS READING OTHER POSTINGS AND THOUGHT I WOULD GET A REPLY WORTH READING, I DIDN'T REALIZE PEOPLE WERE SO HARSH, THANK YOU STEVE FOR THE RESPONSE. I GUESS IF YOU ASK AN UNRELATED QUESTION TO SOMEONE WHO CAN ONLY REPLY TO ONE GENRE YOU'RE BOUND TO END UP WITH CHILDISH DEGRADING REMARKS, I APOLOGIZE FOR INVADING THE BOX WITH MY UNRELATED QUESTION...AN HEY JEFF THANX FOR KEEPING THE STEREO-TYPE ALIVE!

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Evil Steve

07-30-2002 08:03:06




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 Re: Re: Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 10:38:15  
Sunshine-

I'm sorry you mistook my flower pot thing as an insult. I shoulda put in a LOL or something.

I had a '73 bus and went through a lot of problems. My dad had a '61 bug. I overhauled and souped up both engines with JC Whitney oversized cylinders and pistons. Then replaced the Solexes in my bus with the Weber system. They ran much better that way, but nothing compared to newer minivans.

Personally, a VW bus sounds fun but they are death traps in head-ons, easy to roll over, easy to get run off the highway, etc etc.

When that accelerator cable running from the foot pedal all the way under the length of the botton of the car (exposed to dirt, rust, etc.) snaps and leaves you with an engine that you can't speed up - right in the middle of an intersection (as happened to me) or that stupid "power brake booster" (also on the underside of the car) gets hole in it and leaves you feeling like you need to stick you feet through the floor to stop it like Fred Flintstone, you'll realize your "project" ain't so fun after all.

If you are on a tight budget and can't be spending a bunch on parts and need a reliable car, this ain't your baby.

All right guys, Evil Steve had a bus too. Let's hear it!

Peace.

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SUNSHINE

07-30-2002 13:09:32




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 Re: Re: Re: Re: 1971 VW BUS in reply to Evil Steve, 07-30-2002 08:03:06  
I DIDN'T HAVE A PROBLEM WITH THE FLOWER POT REMARK. i had a problem with "Hey Sunshine, check the blinker fluid. Also make sure the tires are properly inflated, sometimes that causes problems with the ignition system. And also check that the camper top is not popped up....sometimes it causes too much drag when push starting.." from good ole' boy jeffy i think the flower pot idea was cute so fug-ged-aboud-it!

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Salmoneye

07-29-2002 13:29:30




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 Re: Re: Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 10:38:15  
The point of my earlier post seems to have gone over your head.

There are easily dozens, if not hundreds, of sites devoted to VW's and their technically related foibles.

The guys here are good, but you may get better help from one of the aforementioned sites.

Dancing Bears Forever...



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Try some thicker skin! Jeff Hoo

07-29-2002 12:25:47




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 Re: Re: Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 10:38:15  
If you really have lurked on this board, then you might know that there's harsher fates than a jibe about flower pots!! I've sustained many fair rebukes for less. Try asking what kind of oil to use in your bus and see how that goes!!!

Relax, pal. Or we'll send Dave#1 or Dell after you with a real sharp keyboard!

You'll get help on this board, but also some deserved ribbing. Try laughing it off.

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SUNSHINE

07-29-2002 13:52:21




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 Re: Re: Re: Re: 1971 VW BUS in reply to Try some thicker skin! Jeff Hoo, 07-29-2002 12:25:47  
I DIDN'T HAVE A PROBLEM WITH THE FLOWER POT REMARK...STEVE ACTUALLY GAVE AN ANSWER TO THE QUESTION, MY PROBLEM WAS YOU ACTING LIKE I AM RETARD BECAUSE I DO NOT HAVE THE ANSWER ALREADY WITHOUT EVEN GIVING ME A VALID RESPONSE...YOU WANNA RIB ME KOOL BUT AT LEAST GIVE ME A VALID REPLY IN THE PROCESS...HUH? I'M A GIRL YOU KNOW THIS DOESN'T JUST COME TO ME AND ALOT OF THE TIME MEN DON'T WANT TO EXPLAIN MECHANICS TO A WOMAN SO IT TAKES US TWICE AS MUCH TO TRY TO ENJOY WORKING ON OUR VEHICLES OR STARTING A RESTORATION AND WANTING TO DO IT OURSELVES, SO CUT ME SOME SLACK I WANT TO KNOW HOW TO FIGURE OUT WHATS WORNG AND HOW TO FIX IT PROPERLY...

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be cool and smoke another joint

07-29-2002 14:42:04




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 Re: Re: Re: Re: Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 13:52:21  
then you'll feel better, You have some nerve asking VW questions on a tractor board then whining cause someone joked about it, I beleive you wanted to get someone going just so you could bi!ch about it, get a since of humor, get a tractor or get lost, you're pick!!!



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I didn't post that!! ...Jeff Hoo

07-29-2002 15:10:53




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 Re: Re: Re: Re: Re: Re: 1971 VW BUS in reply to be cool and smoke another joint, 07-29-2002 14:42:04  
About the joint, that is!! I'm done tweaking a while ago. Good luck, Sunshine. (And a netiquette note: ALL CAPS is considered SCREAMING at someone on the internet....)



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Bob in NY

07-29-2002 20:05:09




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 Re: Re: Re: Re: Re: Re: Re: 1971 VW BUS in reply to I didn't post that!! ...Jeff Hoo, 07-29-2002 15:10:53  

I think she WAS screaming...with what I think was good cause. She might just have a 9N sitting next to the Bus. This site has been getting kinda bitchy the last few months. She asked for some help, and she came to the right spot. With the wealth of knowledge this assembled board has, we can fix practically anything...ON TOPIC or OFF. If we can talk about Bar-B-Ques, beer, wrecked pickup trucks, sick and injured people,,,I've talked about airplanes on this site...we can help out Sunshine. After all, she has 4 cylinders too. This is aimed at the whole site,,,not any one person.
Just my 2 cents worth. Bob in NY

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No Prob... Evil Steve

07-29-2002 10:50:45




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 Re: Re: Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 10:38:15  



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Richard

07-29-2002 10:11:46




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
Sound like either poor compression--i.e., burnt intake or exhaust valve--or manifold leak somewhere. Check compression before wasting any money or time on it. VWs were hard on valves. People lugged them too much, not realizing that air-cooled engines required rpms to keep the air moving and the engines "cool."



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Salmoneye

07-29-2002 09:56:56




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
You might wanna post this on a Jeep site.

I bet they can help...



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That's funny...Jeff Hoo

07-29-2002 09:53:32




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 Re: 1971 VW BUS in reply to SUNSHINE, 07-29-2002 09:25:03  
Hey Sunshine, check the blinker fluid.

Also make sure the tires are properly inflated, sometimes that causes problems with the ignition system.

And also check that the camper top is not popped up....sometimes it causes too much drag when push starting..



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DavidO

07-30-2002 09:00:02




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 Re: Re: 1971 VW BUS in reply to That's funny...Jeff Hoo, 07-29-2002 09:53:32  
Pretty funny, but did you know that a burned out brake light on a late model ford pick up will cause it to not run? I have been working on them for over 40 years and it suprised me.



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