Noob air seal question

[Shamal]

Aye the compression on the piston is pretty naff. Would you suggest a new piston from a different brand ?

Thanks mate. Yeah there is no o ring on the nozzle however I cannot see anywhere where on may go. 
 

checked the inside of the gearbox and the compression isn’t the best 

O rings are built into the nozzle. You can get single or double o rings but single work just as good. You will need to measure the length of the nozzle to get the right one.

 

[Sjkendall]

O rings are built into the nozzle. You can get single or double o rings but single work just as good. You will need to measure the length of the nozzle to get the right one.

thanks for the help mate (the seal was missing ). just purchased a new piston head, cylinder head and nozzle. hopefully solves my problems. 

 

[Colin Allen]

thanks for the help mate (the seal was missing ). just purchased a new piston head, cylinder head and nozzle. hopefully solves my problems. 

Replacing the piston head O ring would be a good idea if the new one does not come with one.

 

[Sjkendall]

Replacing the piston head O ring would be a good idea if the new one does not come with one.

good point, just purchased a set so hopefully they do come with, will double check

 

[ak2m4]

Also make sure you have some silicone grease for the orings as well... I sell a little kit but you use anything that's suitable for orings. 

You want the fitment on the nozzle to be tight but not overly tight where it restricts movement.

Same with the oring on the piston head, needs to seal but not be too tight.

 

[Sjkendall]

Also make sure you have some silicone grease for the orings as well... I sell a little kit but you use anything that's suitable for orings. 

You want the fitment on the nozzle to be tight but not overly tight where it restricts movement.

Same with the oring on the piston head, needs to seal but not be too tight.

Thanks mate