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Author: Subject:  1600 TP Carby Options
Membergregory
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posted on September 16th, 2018 at 07:21 PM
1600 TP Carby Options


Advice needed..
1600 TP with a 34 PICT-3 carby and 009 distributor.

The car has always run well, BUT, the carby goes out of tune easily. Have put a few kits through it, can have it running beautifully for a month or so, then it will start to play up again. Needing the fuel and volume screws adjusted regularly.

Is there an alternative carby for it? One that won't break the bank....
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posted on September 18th, 2018 at 12:57 PM



Hi Gregory
That all seems a bit strange, they don't usually go "out of tune" like that. There may be something else wrong. How are the rubbers between the manifold and the end castings, they can look OK but leak air through cracks etc. End casting to head gaskets need to be properly sealed and tight too. has it got a brake booster, is the diaphragm or its pipes in good condition and not leaking air in. Of course make sure the springs are tight and the adjusting needles don't rattle around. Check the butterfly shaft, is it so badly worn it lets air in? There are carby upgrades available :-
https://www2.cip1.com/searchresults.asp?cat=1482 
And replacement standard carbs :-
https://www2.cip1.com/ProductDetails.asp?ProductCode=C13%2D98%2D1289%2DB 
All available from many Australian suppliers, not just that US site.
Then there's the 009 distributor, not really good for street use with a standard carb. You should have an SVDA distributor, gets rid of that nasty flat spot, makes all the difference.
https://www2.cip1.com/SearchResults.asp?search=SVDA&Submit= 
Good luck
Cheers
Tony




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posted on September 18th, 2018 at 06:10 PM



Quote:
Originally posted by bevoracing
Hi Gregory
That all seems a bit strange, they don't usually go "out of tune" like that. There may be something else wrong. How are the rubbers between the manifold and the end castings, they can look OK but leak air through cracks etc. End casting to head gaskets need to be properly sealed and tight too. has it got a brake booster, is the diaphragm or its pipes in good condition and not leaking air in. Of course make sure the springs are tight and the adjusting needles don't rattle around. Check the butterfly shaft, is it so badly worn it lets air in? There are carby upgrades available :-
https://www2.cip1.com/searchresults.asp?cat=1482 
And replacement standard carbs :-

Tony is correct, the other item to check are the rubber "O" rings on the idle screws these deteriorate and will allow the screws to change with engine vibrations.

https://www2.cip1.com/ProductDetails.asp?ProductCode=C13%2D98%2D1289%2DB 
All available from many Australian suppliers, not just that US site.
Then there's the 009 distributor, not really good for street use with a standard carb. You should have an SVDA distributor, gets rid of that nasty flat spot, makes all the difference.
https://www2.cip1.com/SearchResults.asp?search=SVDA&Submit= 
Good luck
Cheers
Tony
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posted on September 19th, 2018 at 11:26 AM



I have had this issue before and it was O rings

Definitely PICT and not come cheap copy




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posted on September 22nd, 2018 at 10:56 PM



Thanks for the info.....

Tried an SVDA on it, but only ran worse. Would not idle properly. Felt like it was sucking air.
Have replaced the inlet manifold rubbers, and gaskets. Also checked the manifold mating surface was flat.
When slowing down approaching a stop sign or intersection, the engine will almost stall, then recovers, and idles. But not always!
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posted on September 23rd, 2018 at 09:35 PM



my guess is there is something else the matter

any chance you can borrow a known good carb?




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posted on September 24th, 2018 at 07:45 AM



Change the O Rings on the carby screws get genuine ones that are fuel resistant



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posted on September 24th, 2018 at 07:33 PM



Quote:
Originally posted by vw54
Change the O Rings on the carby screws get genuine ones that are fuel resistant

Sometimes Dave it is easier to "dick around" asking the same question with the same result than to take the advice offered and rectify the problem.
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posted on September 25th, 2018 at 07:19 AM



Les you can feed some birds water ....



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posted on October 13th, 2018 at 06:40 PM



Thanks guys.
Cannot get hold of a good carby, which would save a lot of guess work.

Will try to get some o rings and see what happens....
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posted on October 15th, 2018 at 05:00 PM



Mate the "O" rings are in the carby gasket kit.


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