I have bought an engine and auto trans from a late Type 3 wagon to fit into a 63 Split window Bus.I would like to use the twin carbies on it,but found
the carbs to have a strange spring and rubber bung on the throttle shaft plates.I have never seen these before,so am guessing it has something to do
with the auto trans.Does any body have any clues.I guess I can remove them and plug the hole.
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Andy
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posted on September 27th, 2017 at 06:04 PM
I assume your talking about the part in this picture just above item number 51/52? https://www.thesamba.com/vw/gallery/pix/638334.jpg
These carbs were on all type 3, type 4 and kombi's that had dual solex (though they did change specs for each application). Yes this was an extra
valve fitted to auto's, it's for cold starts and helps hesitation in colder climates on auto's when cold that wasn't as noticeable in a manual.
The plate holding the valve in is a bimetal spring, so changes force with temperature.
Kombi's had a cover over this (I have a few), but think type 3's were like you show.
I have never found spare parts for them, and most gasket kits don't include seals for them either. Provided cold starts are not an issue for you,
they can be sealed up as you said.
Being a QLD'er I have never noticed a change with/without this part.
for a stock motor if they are in good nic these carbs work great. But as with all Solex carbs, they suffer badly with age, make sure you get a GOOD
gasket kit, check all mating faces are flat and clean and look particularly for wear in the throttle and choke shafts which give bad air leaks. Also
check the fuel inlet tubes are TIGHT an not a potential fuel leak!
Another bad wear area is the linkages (ball and cup) which makes them impossible to synchronise, and really bad ones have a lot of wear in the
throttle and choke butterfly
grumble
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posted on September 27th, 2017 at 07:45 PM
Quote:
Originally
posted by Andy
I assume your talking about the part in this picture just above item number 51/52? https://www.thesamba.com/vw/gallery/pix/638334.jpg
These carbs were on all type 3, type 4 and kombi's that had dual solex (though they did change specs for each application). Yes this was an extra
valve fitted to auto's, it's for cold starts and helps hesitation in colder climates on auto's when cold that wasn't as noticeable in a manual.
The plate holding the valve in is a bimetal spring, so changes force with temperature.
Kombi's had a cover over this (I have a few), but think type 3's were like you show.
I have never found spare parts for them, and most gasket kits don't include seals for them either. Provided cold starts are not an issue for you,
they can be sealed up as you said.
Being a QLD'er I have never noticed a change with/without this part.
for a stock motor if they are in good nic these carbs work great. But as with all Solex carbs, they suffer badly with age, make sure you get a GOOD
gasket kit, check all mating faces are flat and clean and look particularly for wear in the throttle and choke shafts which give bad air leaks. Also
check the fuel inlet tubes are TIGHT an not a potential fuel leak!
Another bad wear area is the linkages (ball and cup) which makes them impossible to synchronise, and really bad ones have a lot of wear in the
throttle and choke butterfly
Get a decent kit from Tooley Imports and set the carb up carefully, then balance them and no problems.
nbturbo
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Yes Andy -that's it.Until I strip the carby and check it out,I can't figure what they do.I have some Type3 twins on my Buggy that came from a manual
car-and that bit isn't on them.The throttle shafts on these have no wear,but every ball and socket on the linkages are totally buggered.I use those
Redline ball and socket arms to convert the linkage over.I machine the hex bar to fit inside 8mm steel fuel pipe,then silver solder them.Can make the
linkages any length or shape you want.The OG ball ends are easy to remove-just grind the back off,punch out,then drill out to 5mm to suit the Redline
threaded ball.I have a couple of overhaul kits coming from Cip-have never heard of Tooleys-will google them-Thanks for the word.
ACE76
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posted on September 28th, 2017 at 11:43 AM
Yes those bi-metallic valves did "something" on Auto. (only) type 3's, the question as to what they actually were meant to DO was discusssed here
before several years ago: thread started between 18/4/07 & 2/3/06, by Joel?
It seems if they are complete, clean, and cover/seal the holes when cold, they can be left as-is...
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