Tool for adjusting Solex carbs

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Joost van der Velden
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Location: The Netherlands

Tool for adjusting Solex carbs

#1 Post by Joost van der Velden »

Hello,

I am looking for a tool (synchronometer) for adjusting my Solex 40PII Carburetors.

Is this one, mentioned on this site, the correct one?: http://www.paruzzi.eu/webwinkel/?zoektr ... &category=

In the text is mentioned that it can only be used for carbs with a flat topsurface like Weber or Dellorto.

Thanks
Porsche 356 BT6 S90 1962
VW Beetle 1302S 1971
Porsche 911 SC 1980

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John Lewenauer
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#2 Post by John Lewenauer »

I found this works much better.

Ebay 380013709775


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1964 356 C Coupe, Togo/Fawn, Chassis 126634
Enjoy some pictures of my Togo 356 at:
http://www.flickr.com/photos/8292359@N06/sets/72157603043153749/show/

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David Jones
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#3 Post by David Jones »

John is correct, the sychrometer works better and is not restrictive in flow like the carb balancer. It is also made in Germany so should be easy to find in the Netherlands. There is a place for the carb balancer and it is tucked away in a dark recess.

David
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
David Jones #9715

Jeffrey Fellman
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Tool for adjusting Solex carbs

#4 Post by Jeffrey Fellman »

I have used a Unisyn for 35 years and they work great. But I do have to
mention that the english racer's trick of sticking a length of vacuum tubing
in your ear and listening to the "hiss" is also VERY accurate. I often would
sync with a hose and then see what the Unisyn said, rarely if ever was there
any real measurable disagreement. The secret is to hold the hose against
your ear and against the carb inlet in EXACTLY the same manner and direction
when listening to each carb. . This is fairly easy to do if you leave3/4" of
hose sticking out from between your thumb and forfinger and resting your
knuckle against the side of the carb in the exact same style and manner side
to side. You will be able to hear even the slightest difference in loudness
side to side. Give it a try for fun, Jeffrey Fellman
----- Original Message -----
From: "Hugh David Jones" <Jedin@bright.net>
To: <356talk@356registry.com>
Sent: Tuesday, April 08, 2008 4:54 PM
Subject: [356Talk] Re: Tool for adjusting Solex carbs

John is correct, the sychrometer works better and is not restrictive in
flow like the carb balancer. It is also made in Germany so should be easy
to find in the Netherlands. There is a place for the carb balancer and it
is tucked away in a dark recess.

David

------------------------
David Jones






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John Lewenauer
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#5 Post by John Lewenauer »

I tried the Unisyn on my Zenith's and couldn't get the ball to lift without starving the carbs of air. No issues with the black one I pictured, works beautifully and multiple adapters.
Last edited by John Lewenauer on Tue Apr 08, 2008 10:09 pm, edited 1 time in total.
1964 356 C Coupe, Togo/Fawn, Chassis 126634
Enjoy some pictures of my Togo 356 at:
http://www.flickr.com/photos/8292359@N06/sets/72157603043153749/show/

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David Jones
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Location: Kentucky

Tool for adjusting Solex carbs

#6 Post by David Jones »

Before I could afford a real carb balancer and way back about 1970 when I
had cheap cars like my 63 356B and my 64 BMW 1800 Ti, and the over carbed
Cortina GT with side draught Webers that was what I used. Now I prefer to
use the synchrometer because it is so much easier to use. Also years of
abuse of my hearing working in close proximity to jet engines probably has
damaged my hearing to the point where some nuances of the air resonance in
the throats of carbs could now get missed. I still prefer the synchrometer
though I guess an inclined manometer with calibrated depth insertion would
probably work very well or better but would be a little cumbersome.

David Jones
Wapakoneta, Ohio
Reg # 9715
1 x 59 cabrio
1 x 59 coupe
1 x 64 coupe ( resurrection in progress)

-----Original Message-----
From: ClassicoWheels [mailto:pmotion@acun.com]



I have used a Unisyn for 35 years and they work great. But I do have to
mention that the english racer's trick of sticking a length of vacuum tubing
in your ear and listening to the "hiss" is also VERY accurate. I often would
sync with a hose and then see what the Unisyn said, rarely if ever was there
any real measurable disagreement. The secret is to hold the hose against
your ear and against the carb inlet in EXACTLY the same manner and direction
when listening to each carb. . This is fairly easy to do if you leave3/4" of
hose sticking out from between your thumb and forfinger and resting your
knuckle against the side of the carb in the exact same style and manner side
to side. You will be able to hear even the slightest difference in loudness
side to side. Give it a try for fun, Jeffrey Fellman

Post generated using Mail2Forum via email.
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
David Jones #9715

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Unisyn VS Synchronator

#7 Post by Guest »

At age 17 I learned how to synch the SU carbs on my big Healey using a length of tubing and a jar, and then found the Unisyn in the wondrous JC Whitney catalogue. Thought that was the dope for 25 years... and then borrowed a Synchronator from a mechanic buddy. No comparison!
My hearing ain't what it was, and I can't focus on a little jumpin' ball anymore, neither!

Buy a Synchro tool, and never loan it out. :mrgreen:

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James Penland
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#8 Post by James Penland »

Can I use this on my Zeniths without an adapter? How and where does it plug in?
James Penland

John Cox
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#9 Post by John Cox »

The main problem with the unisyn is that the newer ones don't work. I have one that I bought in 1964 to use on my 64 Cab and it works just fine
I don't know what year they changed manufacturers but you would almost have to test a used one to see if it is old enough to be usable

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