Delta CK780 Super J

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V12
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Message par V12 » 31 Août 2013, 12:38

These are my Delta carbs. Note the white and red plastic part, is the white one maybe older? The red one´s edge toward the motor is chamfered, the white one´s not. Maybe another difference of age because of development?

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OCA1
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Message par OCA1 » 31 Août 2013, 23:43

Yes, I believe that the white one is older. I have a similar white one with a smaller diameter venturi and the top part is chamfered all the way around.

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Carb for CK760
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Different version with the needle valves located at a 45 degrees angle.
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Message par OCA1 » 31 Août 2013, 23:45

V12 a écrit :Very nice car. :D
What air filter is this?
The JACOB carb looks a lot like the first Delta slide carb or is it the same?
Thank you :) This is a Thorp filter and yes, they are the same carbs.

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V12
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Message par V12 » 02 Sep 2013, 17:23

From what I have seen, the carb with needle at 45 degree angle is early version made for Veco only.

eric-Z
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Message par eric-Z » 03 Sep 2013, 11:37

Very nice items guys :)
Could you explain how this carb works ? :)

cheers
Z

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Message par V12 » 03 Sep 2013, 12:09

It is one of the early slide carburators so works like that.
At one of the pictures above you can see the parts of this carb.
The metal plate is the moving part.

eric-Z
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Message par eric-Z » 03 Sep 2013, 14:26

V12 a écrit :It is one of the early slide carburators so works like that.
At one of the pictures above you can see the parts of this carb.
The metal plate is the moving part.
Hi V12, I was rather wondering how the fuel/air mixture ratio is controlled, and what plays the role of "low end needle". I can't clearly see from the pictures. The fuel both comes from top and bottom needles ?

cheers
Z

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Message par V12 » 03 Sep 2013, 14:59

Ah ok. I think OCA1 could explain better than me, I´m more the electric expert.

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Message par OCA1 » 03 Sep 2013, 18:32

Hello guys :)

The bottom needle valve is the idle mixture adjustment and low range-speed. The top one is the high speed needle valve for mid-range to hi-speed adjustments. The high speed needle valve adjustment has no effect on idle mixture.

I hope this explains how it works.

OCA1 :)

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Message par eric-Z » 03 Sep 2013, 19:13

OCA1 a écrit :Hello guys :)

The bottom needle valve is the idle mixture adjustment and low range-speed. The top one is the high speed needle valve for mid-range to hi-speed adjustments. The high speed needle valve adjustment has no effect on idle mixture.

I hope this explains how it works.

OCA1 :)
Now I see :) Thanks !
cheers
Z

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Message par OCA1 » 06 Sep 2013, 20:09

Bonjour! Almost done :D Just need to do the antenna, spoiler and body.

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:)

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Message par OCA1 » 06 Sep 2013, 20:12

Before

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After

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Message par eric-Z » 07 Sep 2013, 00:04

Very very nice OCA, wowowoh !!!
Z

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Message par OCA1 » 07 Sep 2013, 01:23

Merci beaucoup eric-Z :D

At first I was not too crazy about the white radio tray, but after looking at the car now I do like it a lot.

Cheers! OCA1 :)

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Message par MK4 » 07 Sep 2013, 10:14

Great work for sure !!

you should now have a fantastic delta collection !!

I love this car !! can muffler give a special look to the car

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Message par V12 » 07 Sep 2013, 10:43

Amazing restoring project OCA1! :ok:
I like also the details as the moulded front tires, Thorp air cleaner and of course the Delta rear muffler.

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Message par eric-Z » 07 Sep 2013, 11:15

Two sisters.. I really like these cars, maybe sometimes we should collect few picts of our classic Deltas and make a post together :)
Z

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Message par MK4 » 07 Sep 2013, 14:17

oca1 , do you think chassis is delta product ?
it seem to be brown , so
is it made in Tufnol or something like this , or is it epoxy /fiberglass

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Message par V12 » 07 Sep 2013, 14:53

I was asking this also but it seems there was such Delta chassis.
Tufnol is similar to Pertinax and is too brittle so can´t be used for a chassis. I have seen brown fibreglass like this used for electronic boards several times. There is another Delta car using such chassis at the forum.

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Message par OCA1 » 08 Sep 2013, 07:54

Thank you my friends V12 and MK4 for your nice comments :) I am glad that you guys like the car and it will be a nice addition to my collection.

You are right, the rear can muffler gives it a vintage look!

:)

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Message par OCA1 » 08 Sep 2013, 07:59

eric-Z a écrit :Two sisters.. I really like these cars, maybe sometimes we should collect few picts of our classic Deltas and make a post together :)
Z

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Hi eric-Z,

Lovely sisters! That is a brilliant idea :ok: We should start a post together where we can all post pics of our classic Delta cars.
:)
Dernière édition par OCA1 le 08 Sep 2013, 08:20, édité 1 fois.

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Message par OCA1 » 08 Sep 2013, 08:08

MK4 a écrit :oca1 , do you think chassis is delta product ?
it seem to be brown , so
is it made in Tufnol or something like this , or is it epoxy /fiberglass
I do think that this is a delta product. It is made of the same FRP epoxy/fiberglass material as the green and black delta chassis and it have the same weave pattern too. These are some pictures of similar brown delta chassis that I have seen on the net.

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I will try and ask if Art or Dave Campbell can confirm this.

:)

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Message par V12 » 10 Nov 2013, 00:41

I got a brown chassis now also. Seems the same version and I got this with some other parts from a former Delta shop so yes the brown chassis is original Delta.
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Meanwhile I went trough my own Delta chassis and pictures I have seen at internet so found at least eight different chassis for the CK780, CK790 and CK800 cars, maybe more.
If you compare the brown chassis with the green chassis it´s quite the same, the brown chassis just have three mounting holes for the front end where the green have two holes as the black chassis.
The black chassis is same overall shape again as the brown and green chassis but the black have the large round cutout below the frontend, where the holes for the strengthening brace is missing.
Then the thin, light green fibreglass chassis, several types of aluminium chassis ..... Really difficult to follow the Super-J development, small changes all the time.

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Message par OCA1 » 12 Nov 2013, 02:18

Nice find V12! So now we can confirm that the brown chassis is an original Delta part :D


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