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Need Part 4-Primary Carb Linkage
Posted by: BobV66Vair ()
Date: February 27, 2018 09:52AM

I am changing my 140 to use four primary carbs. I want them to all sync together, not act as primary and secondary. I have seen a small piece of linkage that can attach the throttle shafts together. This avoids a lot of complicated linkage between the carbs. it is basically shaped like a circle with some holes for attachment.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: Need Part 4-Primary Carb Linkage
Posted by: azdave ()
Date: February 27, 2018 11:05AM

Does this help start a search?

Berg Flexible Couplings

[www.wmberg.com]

[www.directindustry.com]

[www.ebay.com]


Dave W. / Gilbert Arizona
66 Corsa 140 4-speed w/factory A/C
66 Corsa 140 4-speed
65 Corsa 140 4-speed
66 Corsa 455 Toro V8
65 Monza 455 Toro V8
65 Monza 110 Convertible
65 Monza 4DR 140 PG w/factory A/C
65 Monza 4DR EJ20T w/5-speed







Edited 1 time(s). Last edit at 02/27/2018 11:06AM by azdave.

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Re: Need Part 4-Primary Carb Linkage
Posted by: BobV66Vair ()
Date: February 27, 2018 11:47AM

That's the ticket Seth. Now I just need to measure the shaft size for the throttle shafts and see if I can figure out how to attach them.

Thanks,

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: Need Part 4-Primary Carb Linkage
Posted by: jbyenko77 ()
Date: February 27, 2018 01:30PM

hi
contact dave kostich
909-241-4677
dmkostich@gmail.com

he makes something similar to the old crown/bill thomas interlocking plates that connect the primary and secondary carbs

jeff ballard
camarillo, ca

Stinger Obsessed

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Re: Need Part 4-Primary Carb Linkage
Posted by: BobV66Vair ()
Date: February 27, 2018 02:02PM

Thanks Jeff. I'll ask him. Thanks to Seth, I have found some new pieces that look like what I need but I do not know the precise specs of the part I need and I am hesitant to buy them at $20 each to guess.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: Need Part 4-Primary Carb Linkage
Posted by: steve c goodman ()
Date: February 27, 2018 04:17PM

BobV66Vair Wrote:
-------------------------------------------------------
> That's the ticket Seth. Now I just need to measure
> the shaft size for the throttle shafts and see if
> I can figure out how to attach them.
>
> Thanks,

----------------------------------------


Bob The throttle shafts are .312" or 5/16".

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: Need Part 4-Primary Carb Linkage
Posted by: BobV66Vair ()
Date: February 27, 2018 04:33PM

Thanks Steve. The ones for sale on EBay are 3/16" so useless. Seth sent a link to the place that makes them. I contacted a dealer to try to get some that will fit the 5/16" shafts. Bob Slusher had some that connected to the throttle shafts between the carbs. He said that may require longer shafts. Maybe turbo shafts?

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: Need Part 4-Primary Carb Linkage
Posted by: steve c goodman ()
Date: February 27, 2018 05:03PM

Turbo shafts are not close. As mentioned above the pieces made by OTTO/CROWN are easiest. I am looking at CROWN catalog #17 right now pg 22 part #5042. Pieces clamped around throttle shaft. A tongue in groove type of design clamped the two shafts together. I had one of the sets but sold it several years ago and haven't seen others. Probably best to follow the lead above to Dave Kostich.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: Need Part 4-Primary Carb Linkage
Posted by: 65180 ()
Date: February 27, 2018 06:57PM

I recently got the old Crown set up from Dave Kostich that he makes. The same set that jbyenko77 mentioned. That is the route I would go.

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Re: Need Part 4-Primary Carb Linkage
Posted by: v8vair ()
Date: February 28, 2018 05:49AM

Doesnt Clarks still sell them ?

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Re: Need Part 4-Primary Carb Linkage
Posted by: JimBrandberg ()
Date: February 28, 2018 05:56AM

Idling on all 4 is one thing but will coming off idle with all 4 simultaneously rather than Primary/Secondary make for poor driveability at low RPMs? Spit up through the carbs sort of a thing? I don't know, I'm just asking.

Jim Brandberg
Isanti, MN
CorvairRepair.com

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FOUND: Need Part 4-Primary Carb Linkage
Posted by: BobV66Vair ()
Date: February 28, 2018 06:48AM

Clark's now sells connectors for this application. New items for them. They may be made by Dave. I ordered a pair. I'll post in a new thread how they work.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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Re: Need Part 4-Primary Carb Linkage
Posted by: v8vair ()
Date: February 28, 2018 07:11AM

My race motor with a big cam on the test stand takes all four carbs off idle easily, i would think the stock bore carbs would be fine, four accell pumps help.

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Re: Need Part 4-Primary Carb Linkage
Posted by: Seth Emerson ()
Date: February 28, 2018 10:39AM

PS - I am pretty sure that was Dave sending the info. No claims here. Dave Kostich does some good work.

Seth Emerson

Check my new Performance Corvair Web site [www.perfvair.com]

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Re: Need Part 4-Primary Carb Linkage
Posted by: BobV66Vair ()
Date: March 01, 2018 09:33AM

Yes, it is Dave who makes them for Clark's. He called me last night (classy thing to do) and said that Clark's includes basic instructions but if I needed any help synchronizing them, give him a call. Man, Corvair people are the best. Try asking for help from another Porsche owner.

Bob Vinnacombe
Sandy, Oregon
1965 Corsa 140 stock
1966 Monza Soon to be race car
1968 Monza Parts for now

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