| [ Total Views: 845 | Total Replies: 17 | Thread Id: 74370 ] |
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 mickmick
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| posted on January 28th, 2009 at 11:12 AM |
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1916 popping and farting?
Hi guys my new 68 beetle has a 1916 engine with twin kadrons and a 2 1/2 or 3 inch exhaust fitted, when i've backed of the accelerator or rolling
downhill the engine pops and makes a few noises which i don't mind that much but think that it is running a bit rich. I'm not too sure how to
adjust the carbies yet but willing to have a go. Also i might as well get a service done to check everthing over, is there anyone recommended in
Sutherland area who won't rip you off?
Thanks
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Mick058
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| posted on January 28th, 2009 at 11:30 AM |
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hey mate - look forward to seeing you around. YOu bought the black bug?
YOu may need a simple tune - normal mechanics generally get it wrong. There is a veedub place at kirrawee, but i have no experience with them - some
guys on the forum are good at tuning dual carbies - im sure a nice case of beer or some spirits would tempt some to help you out.
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 vw54
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| posted on January 28th, 2009 at 11:48 AM |
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| Quote: |
engine with twin kadrons
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thats yr problem I seen them pulled apart and some times they take hours to get them right
do you have electronic Ignition I would get one of those first so you know the spark is right and wont vary
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Mick058
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| posted on January 28th, 2009 at 11:56 AM |
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i had twin Kadrons on a 1600 with no problems - there not that bad are hey Dave? Can't you buy any Carbie that hasn't been built properly (empi
webers, or bad rebuilds)
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dubsurfer
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| posted on January 28th, 2009 at 01:17 PM |
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my last kombi had the same problem if i didnt get the points gap just right, im no expert but its a nice easy one to check
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Joel
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| posted on January 28th, 2009 at 05:46 PM |
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Kadrons can be really frustrating to tune especially if they have the shitty stock linkage
popping on overrun is more a lean condition in the idle circuit, timing retarded to much or more often than not the zorst leaking somewhere and 9
times outta 10 its those useless heaterbox joint donuts
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LOWBUG
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| posted on January 28th, 2009 at 06:10 PM |
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| Quote: | Originally
posted by Mick058
i had twin Kadrons on a 1600 with no problems - there not that bad are hey Dave? Can't you buy any Carbie that hasn't been built properly (empi
webers, or bad rebuilds)
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Mmmmmm a stock engine has alot of demand.
Everyone I know thats had them hates them, maybe I don't know alot of people. we use to call tin can carbies.
Get some decent carbs and you'll probably get more power and less probs.
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Tim Andrews
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| posted on January 28th, 2009 at 07:52 PM |
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I have been running twin kadrons for about 10 years trouble free (set and forget). I have had more elec probs by far. Could be as simple as a blocked
pilot jet if happening when backing off.
'56 Beetle, 1916
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ian.mezz
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| posted on January 28th, 2009 at 08:08 PM |
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yeah the poping and farting is normal it gives your vw character, its
even more fun when one side linkage falls off.
PS Why pull something apart you know nothing about.
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mickmick
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| posted on January 28th, 2009 at 09:23 PM |
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I wasn't going to just pull them apart, just adjust the screws a little to see if it makes much difference. Like i said i don't kmow much about the
mechanics of an engine. I'll try the place at Kirrawee (Veedub Classic) if they have no bad reports. How do you know if you have electronic
ignition? Might be a dumb ? but hey, i'm a begginer.
No Mick058, i got a cream one. Will post photos later on maybe this weekend. I thought the black one wasn't the best for my girlfriend as the clutch
was really hard and changing gears was a bit of an effort too.
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1916baja
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| posted on January 28th, 2009 at 10:22 PM |
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I run a 1916 with twin kads and it does the same thing, I've had it on the dyno and everything is perfect, Mixtures timing jetting etc.... I run
points also, stock bosch blue coil, 009 dizzy. I had webers on it previously and i have found the kads to be an absolute pleasure! Soon as we put them
on I actually had more power. My webers were not really right for my motor though, I'm sure had they been a matched pair i would've had more luck.
I'd stick with kads if you don't know much about carbies, But thats just my opinion, coming from someone who doesn't know much about carbies
either, After pulling them down once to check jet sizes i could do it anytime as they are pretty straight forward compared to webers. good luck!
And pop the top off the dizzy and if it don't got points it's electric.
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greedy53
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| posted on January 29th, 2009 at 02:53 PM |
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you don't need to pull tyhem apart to adjust just for starters take the filters off and give it a decent rev than put your hand over the top of a
carby makes them suck hard do this to both
its a old way of getting the carbys to suck any crap out than make sure the plugs are ok but the long term is as they say get a compu fire fitted the
difference is great
good luck
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Craig Torrens
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| posted on January 29th, 2009 at 07:57 PM |
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Exhaust leak at the flange at the head.
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grumble
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| posted on January 29th, 2009 at 08:07 PM |
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Tune,balance and as Craig says check exhaust leaks or excess exhaust size. ie no back pressure.
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squizy
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| posted on January 29th, 2009 at 08:15 PM |
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| Quote: | Originally
posted by Craig Torrens
Exhaust leak at the flange at the head.
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What this bloke said...
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1916baja
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| posted on January 29th, 2009 at 10:14 PM |
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I might check my exhaust now, come to think of it i wake my neighbours up everyday now... even the heavy sleeper i didn't wake before! I does seem to
be a bit louder these days...
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thestu
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| posted on January 29th, 2009 at 10:41 PM |
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if it works dont fix it 
popping and farting is gooooooooood! always loved the sounds of it on back off in the golf 
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colin
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| posted on January 31st, 2009 at 10:04 AM |
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Also check your carby manifolds are tight.
Cheers Col
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