Discussion in 'Other Norton Motorcycles' started by nortonmark, Mar 3, 2019.
Anyone know what p/n for single carb manifold is for Mercury?
Are you looking for one, or just need a part number?
If you use a single carb m/fold don't forget the two split sleeves that are inserted in the inlet ports!
When I had my 64 Atlas I found this manifold for single carb on the vertical twins, that was my indeed a norton part
I do not remember this split sleeves part
No inserts in the Mercury intake ports.
The factory parts books aren't much help, are they? The ones for '63-'65 and '66-'68 show the numbers for pretty much everything else. The sleeves Bernhard mentioned are listed for '66-'67 650SS in one parts list, and for 88ss and 650 in another. They are part no. 23864. The manifold is shown in Plate A as item number 27 in the '63-'65 parts list, but does not show up in the associated list of parts. That's the same plate that Andover shows in their parts diagrams, and they also don't have a listing for the manifold.
However, I found a couple of part numbers in earlier ('61-'62) lists that show part numbers for the manifold. The manifold mentioned above as A27 is listed as part number 22757 and used on models 88 and 99, Std. and De Luxe. There is also a supplement to that list for models 88ss, 99ss, and 650ss that lists an intake manifold part number 23739 as used on '61 88ss and '61/'62 99ss.
Hope that helps.
The 2 into one manifold on downdraft heads is for first year 62 (partial) atlas and are quite rare. They may have resurrected the same part for the mercury. I have never been able to score one....
below: 23739 is for pre down draft heads
61 88SS, 61-62 99SS
22757 2 into 1 for pre downdraft heads 1949-1962
I have a complete engine/gearbox assembly sitting on my bench. If it weren't -16 I'd go check it out and take some pix. hopefully by the weekend it'll warm up
23358, may be a casting number. Pics to follow tomorrow.
My '62 Atlas (titled as '63) came with a 2-1 manifold and a 389/87 Monoblock. I always assumed this was original kit. I read the casting number as X23356. Not for sale, someday soon the head will come back from the menders.
Don't know the part number you are looking for but RGM list one that should work
I have one stamped 23356, no X preceding the number. It has a three stamped on the opposite side.
If you look closely at my pictures that is what I have. I think the last number is an eight
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