I broke a piston ring re-fitting the barrel on my 1956 NH350 today. I see that Drags sell piston ring sets but they stock standard/ 20/40 and 60 oversize. My piston has +30 clearly stamped on the crown. Do I need to find +30 rings if they exist?
Many thanks, Dennis
NH350 piston ring size.
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NH350 piston ring size.
1955 VH500 alloy head
1956 NH350 restoration in progress
1956 NH350 restoration in progress
- dave.owen
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Re: NH350 piston ring size.
Try Cox and Turner, Somerset. You will need the piston number
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Re: NH350 piston ring size.
Dave,
Thank you for that information. I may have found a supplier but if that falls through I will contact Cox and Turner.
Dennis
Thank you for that information. I may have found a supplier but if that falls through I will contact Cox and Turner.
Dennis
1955 VH500 alloy head
1956 NH350 restoration in progress
1956 NH350 restoration in progress
- Roger Gwynn
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Re: NH350 piston ring size.
You can gap +.40 rings to suit as long as they are conventional rings, not multi piece Cords type
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
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Re: NH350 piston ring size.
Remove equally from both ends. Nev
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Re: NH350 piston ring size.
By a happy coincidence a member near me was selling a +30 used piston and a new old stock piston ring set on eBay and I was the lucky winner of the auction.
Rings fitted to my piston and the barrel fitted. The piston I bought is a useful spare.
Dennis
Rings fitted to my piston and the barrel fitted. The piston I bought is a useful spare.
Dennis
1955 VH500 alloy head
1956 NH350 restoration in progress
1956 NH350 restoration in progress
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