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Author: Subject:  Auto choke mechanism for a '70 Notch..?
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posted on July 28th, 2017 at 07:52 PM
Auto choke mechanism for a '70 Notch..?


So ive just bought my first type 3 - a '70 notch (28th Oct 1969 it left the factory in w Germany apparently!) its a project.

First issue is to get it going - it tries to fire with brakes fluid sprayed on the carbies but the old owner says the automatic choke blades have been removed (its not clear why) and its been sat outside for 6 months in all weathers.

I will put new sparks, leads, fuel and oil in but i figure without the choke im gonna struggle in cold wet Perth winter weather

So my question i guess is is it easy to source and fit a new choke - guidence welcome :)

Will post pics asap
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posted on August 5th, 2017 at 07:40 PM



single carb or dual

what nr on carbside ...may have whole one to repl rather than strip and rebuild

or is just the heater coil broke or missing?




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posted on August 5th, 2017 at 11:26 PM



Thanks for the response bushed its a dual carb, engine number t071180, they are Solex so original VW german, i will try to see the numbers on the carbs in daylight tmw

I agree a whole choke system rather than recon is probably the way to go, how much would yours cost roughly please?

There are no air filters on it at all (thats how it came) but i doubt that would stop her turning over?

Im getting my mechanic to give it the once over tmw so that should help determine next steps..
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posted on August 6th, 2017 at 01:29 AM



get an original STOCK air cleaner and fit that

12 v new chokes are available are they wired up correctly there are several things to check




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posted on August 6th, 2017 at 06:14 PM
choke


post up a pic of the throat of your carb....
from your post it reads to me as if the prev owner removed the butterfly.
its on held in by 2 screws which are punched over.
this is meant to stop them falling out and going through the motor.
(had it happen once ..... caused a hell of a banging in the cylinder it went into..)
see the pic below stolen off the net.....
are you missing the butterfly ?????

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posted on August 6th, 2017 at 06:15 PM



not the red arrows...sorry they were already in the pic
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posted on August 6th, 2017 at 10:36 PM



Thanks PV
Heres the engine bay for starters..

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posted on August 7th, 2017 at 09:38 PM



Makes it easier with it a bit lighter.

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posted on August 8th, 2017 at 01:09 PM



Thanks 1500s clearly im as technology challenged as i am mechanically haha
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posted on August 8th, 2017 at 01:10 PM



Close up of the wording reads: Solex 32-34 Posit 2..

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posted on August 8th, 2017 at 01:54 PM



Quote:
Originally posted by pv370
post up a pic of the throat of your carb....
from your post it reads to me as if the prev owner removed the butterfly.
its on held in by 2 screws which are punched over.
this is meant to stop them falling out and going through the motor.
(had it happen once ..... caused a hell of a banging in the cylinder it went into..)
see the pic below stolen off the net.....
are you missing the butterfly ?????


PV, seems you're right, no butterfly on eitherside...see pic
..if as you say they're only held by2 screws each, i should be able to replace and fit these myself?

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posted on August 8th, 2017 at 03:03 PM



easy enough if you can find the butterfly's (or would that be butterflies) and screws somewhere.
does the prev owner still have them ?????
if the carbs are good other than having the choke butterfy's missing then just replace the missing bits.
if the carbs are leaky, hard to adjust, or have very worn out bits then replace the carbs.
you may have trouble finding just the butterfly's.
maybe someone has some shot carbs somewhere????
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posted on August 8th, 2017 at 04:05 PM



Update: she runs!
After a week in dry storage with general fettling and daily WD40 finally theres life - enough to safely nurse her round the block, exciting times haha
I took a video but not sure if/how to upload?!
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posted on August 8th, 2017 at 05:41 PM



You don't NEED the chokes in most Australian conditions, may just need to warm up for a minute or two. Auto-chokes can make eng. run too rich if don't open fully (and they often open much too quickly & then cause stalling). I used to de-activate mine. Some carbs have no chokes at all.



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posted on August 8th, 2017 at 06:16 PM



Quote:
Originally posted by ACE76
You don't NEED the chokes in most Australian conditions, may just need to warm up for a minute or two. Auto-chokes can make eng. run too rich if don't open fully (and they often open much too quickly & then cause stalling). I used to de-activate mine. Someg carbs have no chokes at all.


thats very reassuring to know Ace, i should be aboe to take her for a freeway run then to get all the cobwebs out, as soon as it stops raining here
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posted on August 10th, 2017 at 01:51 PM



Find someone who can balance your carbs properly, I had the Notch done and it has never run so good. It's not something just any spanner monkey can do. Find a mechanic who has the right tools, and has worked on them before. Ask some of the local Perth VW guys, they'll tell you who to see.
If you need parts maybe try Denver - adlbeetle66, he has a pretty good stock of bits and pieces and I seem to remember spotting a couple of 32-34 Posit 2 and 3 carb parts in one of his photos.
We get minus 2-3 degree morning here and I wouldn't be without the chokes.




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posted on August 10th, 2017 at 06:02 PM



had a couple of -10 degree mornings here a few weeks back, the frost was an inch thick....................... trust me the choke comes in very handy then
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posted on August 11th, 2017 at 07:35 PM



Thanks for the advice Wombat, i have booked it in with Brooklands in Wangara they are aircooled specialists although they admit type 3s are not their speciality :/
If anyone has an alt recommendation for tuning im all ears :)
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posted on August 11th, 2017 at 11:25 PM



good to have ears for any tune(ing) lol

google u-tube vw twin carb tuning video !




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