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Fine Thread Needle Valve
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Fine Thread Needle Valve
Can some one post a picture or point me in the right direction of what a fine thread NV looks like?
Re: Fine Thread Needle Valve
Travis, here is a comparison of the threads.. side by side. Left is coarse (80 tpi) and right is fine (128 tpi). These are both for reed valve engines. I don't have any Tee Dee's.
The fine-thread needle is Cox #1939.. which does NOT fit a 290 (postage-stamp) back-plate.
The fine-thread needle is Cox #1939.. which does NOT fit a 290 (postage-stamp) back-plate.
Re: Fine Thread Needle Valve
So a postage stamp is a fine thread? I was thinking it was.
How rare is an Aluminum Fine Thread NV? I think I have one...
How rare is an Aluminum Fine Thread NV? I think I have one...
Re: Fine Thread Needle Valve
I've got two "postage-stamp" back-plates.. and the needles are mixed up. The needles have different length tapers.. but are both fine-thread. The back-plates have slightly different NVA's (fuel-nipple length and O/A length) Should I assume that the longer tapered needle fits the back-plate with the longer nipple? This would seem correct..
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» COX TD 049/051 KUSTOM KRAFTSMANSHIP FINE THREAD NEEDLE VALVE ASSY
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