A friend of mine here in England called to ask if I could tell him the correct taper angle for his NH carburettor needle. He has several old ones with wear grooves, and they have a fine taper. He bought a new one (which perhaps originates from Snyder's or Bob's) and that has a much 'blunter' taper. It runs but is very hard to adjust as even a few degrees makes a big difference to the fuel area.
Does anyone know the correct taper please?
NH Carburettor needle taper
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Chris Barker
Topic author - Posts: 277
- Joined: Sun Jan 06, 2019 5:08 pm
- First Name: Chris
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John kuehn
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Re: NH Carburettor needle taper
Maybe he needs a new seat for the needle? It could be the new needle seats are made for the
new needle which has the blunter angle.
new needle which has the blunter angle.
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CudaMan
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Re: NH Carburettor needle taper
I don't know the exact angle, but he might be able to use one of his old needles to make a tool to regrind his new needle to match the angle of the old needle (video courtesy of Steve Jelf):
https://www.youtube.com/watch?v=uTiStUTU9IE
https://www.youtube.com/watch?v=uTiStUTU9IE
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)