Page 1 of 1
twin carbs
Posted: Sat Apr 18, 2020 5:30 pm
by IAIN
Would a cooper S have the vacume 'take off ' on the Right Hand carb blocked or was the 'take off' tube not there ?
Re: twin carbs
Posted: Sat Apr 18, 2020 8:13 pm
by Spider
The S had no take off tubes at all.
Re: twin carbs
Posted: Sat Apr 18, 2020 8:14 pm
by 251 ENG
Many sets of original cooper s carbs have the tube on the carb body but it is blocked off
Re: twin carbs
Posted: Sat Apr 18, 2020 8:24 pm
by Andrew1967
I have a couple sets of 1071 and 1275 carbs with blanked off take off spouts.
I thought it odd to start with but a post on here a few years ago put my mind at rest.
Re: twin carbs
Posted: Sat Apr 18, 2020 9:11 pm
by IAIN
The one I have, the tube is soldered up I think. I wasn't sure if that was correct. Thanks .
Re: twin carbs
Posted: Mon Apr 20, 2020 8:12 am
by abri
I've seen unrestored cars with vac ports as above, blocked off.
Re: twin carbs
Posted: Mon Apr 20, 2020 9:16 am
by btetley
my original cooper air cleaner housing (double air cleaner has a tube take off - what is that for?
Re: twin carbs
Posted: Mon Apr 20, 2020 2:19 pm
by bwaminispeed
That connects to a similar tube on the rocker cover.......
Re: twin carbs
Posted: Mon Apr 20, 2020 10:53 pm
by AndyPen
bwaminispeed wrote: ↑Mon Apr 20, 2020 2:19 pm
That connects to a similar tube on the rocker cover.......
Yes on early cars without a PVC valve, as when they were fitted it was just left connected to nothing

Change point around Sept 64 with the hydro wasn't it?

Re: twin carbs
Posted: Mon Apr 20, 2020 11:09 pm
by bwaminispeed
That's what I thought, early cars only.......
I have an August 25 64 1275 S, and, this is one of the things I need to find out......
That change to Hydro only says September 64, lot of days in September 30 to be exact........
My car has a wet shell, one of the first, maybe THE first, I don't know........But, it was definitely built as a dry car.....
It didn't come with it's original engine, and, these are all the little details I need to sort out......
Re: twin carbs
Posted: Tue Apr 21, 2020 3:24 am
by NicholasUpton
Hydro shells were being build before the auctuater switchover. Worked on a 64 shell that had a factory hydro floor and boot floor, but dry bulkhead.
Re: twin carbs
Posted: Tue Apr 21, 2020 4:49 am
by bwaminispeed
Mine has a wet bulkhead, it is a complete wet shell, but, assembled as a dry car....
Re: twin carbs
Posted: Fri Apr 24, 2020 5:22 pm
by rogerotto66s
I have a 1966 S wet car with a July build date.
I purchased the car from the original owner.
The Heritage Certificate indicates “Personal Export”.
Below are pictures of my air cleaner and twin carbs.
The air cleaner tube has a screw clamp near the bottom.
What is attached to this tube?
( Added after initial post )
I now understand -
- the clamp is actually holding an extension pipe in place.
- the pipe was intended to pull warm air off the exhaust manifold.
7FA5B059-00FD-4E4F-BD58-E4AEFA25AE41.jpeg
6CB1CF13-F204-409C-B5DF-5A511DE32CBC.png