GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: Martis 1 on December 05, 2019, 08:05:11 PM

Title: Proper o-ring hardness for Marauder valve and gauge block?
Post by: Martis 1 on December 05, 2019, 08:05:11 PM

I have to rebuild my Marauder, (long story... ;) and have a selection of o-rings, but they are all 90 duro.  I’m wondering if they are the proper hardness or should I use something softer, specifically for the valve and gauge block?  I can order some 70’s from the o ring store if that would be better.
Thanks!

Title: Re: Proper o-ring hardness for Marauder valve and gauge block?
Post by: Motorhead on December 05, 2019, 09:03:04 PM

Generally we use buna 70's
While a 90 can work one needs to be very careful when pushing the valve and gauge manifold down the end of tubes threads & entering tubes smooth interior, as well going past the gauge hole.

Title: Re: Proper o-ring hardness for Marauder valve and gauge block?
Post by: Martis 1 on December 06, 2019, 11:37:56 AM

Thank you sir! 
I ordered some 70’s.