Ariel Owners Motorcycle Club

Italian ? Gandini perhaps.
https://www.gandini-industria.it/catalo ... er-pistons
maybe this? inside the EU, no import problems
https://www.gandini-industria.it/catalo ... /d/81.810/

Thank you for this rest. After DraganFly and Allan Simpson's comments...the piston left for a remanufacturing at dimension 84. As soon as I receive it, I will give you the comments..... in several weeks....

Vincent.vanGinneke wrote: ↑Sat Nov 19, 2022 10:24 am Italian ? Gandini perhaps.
https://www.gandini-industria.it/catalo ... er-pistons
maybe this? inside the EU, no import problems
https://www.gandini-industria.it/catalo ... /d/81.810/

Thank you, no results with 83,8 :(:(

Hello everyone,
I received my new piston and the rectifier will now take care of the cylinder. the reassembly is close ..... Could you give me the manufacturer references of these seals
. Thanks

Phil

In the list of gaskets:
https://draganfly.co.uk/product-categor ... s-gaskets/
Rocker box gasket (your rocker cover gasket) 870-38
Cylinder base gasket (your gasket, engine lower) 128-52
Pushrod rubber seal (upper) (your rocker arms gasket) 1890A-40

Several people have developed a method of replacing the pushrod seal with an 'O' ring and a metal insert. This is to avoid the rubber seal collapsing and wearing away the aluminium pushrod. Here are two Forum threads that have diagrams of the modification.
viewtopic.php?f=4&t=1519&p=8124&hilit=viton#p8124
viewtopic.php?f=7&t=11836&p=83538&hilit=viton#p83538

Hope that helps

SG

Rocker box gasket (your rocker cover gasket) 870-38
Cylinder base gasket (your gasket, engine lower) 128-52
Pushrod rubber seal (upper) (your rocker arms gasket) 1890A-40
Merci pour ces informations et la correction de mes désignations alléatoires
J'ai commandé chez DraganFly:
Gasket set, 1956-58 NH/VH × 1

The repair progresses, return to machining of the cylinder and the valve seats. Rest of the seals shipped by DraganFly on 08/02 blocked in customs :(:(

The Work in Detail

That looks good !