Just curious if there is some specialty oil I should be putting in the gas port of a nitro piston gun? I’ve heard two drops every thousand rounds but have no idea what oil or where to get it. Thank you all.
No oil!!! It will diesel! The correct way to handle things is to put a very thin film of Moly grease or Krytox on the outside of the back of the piston seal. A tiny amount of lubricant will migrate onto the sides of the compression chamber.
Like Doug says, oil or too much grease in the piston chamber will ruin the accuracy of your gun and my blow your piston seal. The oil or grease can diesel, meaning ignite causing extra pressure and an explosion in the piston chamber. This can split the piston seal, thus will ruin your day and your gun. Then you will have to get the gun serviced to replace the seal.
https://www.amazon.com/Umarex-RWS-Air-Chamber-Lube/dp/B07YBV616Q
Not sure if properties differ from coil piston seals to gas piston seals, but I have this and have used it in years past for a relatively short term solution in coil springers. I would probably prefer to take the gun apart and relube or rebuild entire power plant on coil springers. Same with the mainspring oil (used only on mainsprings) they offer which can be beneficial in the interim. Use with your own judgement as per instruction(s). I do know that the first dozen shots in mainspring guns, they will be erratic depending on how long you let it sit. Don't remember last time I used either because it has been some time since.
gas port of a nitro piston gun?
I believe you are referring to the air transfer port
what does the manufacture say,that is the way to go,if you can not find out use no oil...No Oil....oil is for the trigger or parts Outside the rifle,no oil in the chamber or tube.
Putting oil in the gas port, is it a two cycle,I do not think so,but could be when you do it.
Manufacturer says to put two drops into the air port every thousand rounds. Just doesn’t say what kind. You are probably right. In my previous experience lack of use killed my rws. I had to have it rebuilt years ago after it sat for many years. It was rebuilt and is once again dead after sitting for a long long time.
So this is an RWS rebuild thread? Sweet!
When does it start? 😉
So this is an RWS rebuild thread? Sweet!
When does it start? 😉
I’m not sure I feel confident enough to do it myself...lol. We will see. I found vortek products where I think I could get the parts. I did watch a YouTube video and it doesn’t look to bad. We will see
RWS/Diana recommend for my Model 52, use mainspring oil on the spring. Use RWS chamber oil 2 drops per 1000 o so shots.. I assume it's silicone. Requires a long needle tip attached to the squeeze bottle. Pracice squeeseing drops before putting into transfer port.
I follow these factory instructiosns. Many guys don't agree.
I think we can all agree, that a gas piston, is not a spring.
I half wonder if owners manuals saying to add a couple drops of oil every 1000 shots are just a hold over from the days when piston seals were leather and the oil was to keep the leather supple and was just never removed from the manuals when the switch from leather to synthetic was made.
Newer piston seals are synthetic, some even have moly embedded in them and shouldn't require oil of any kind on them.
FWIW, I've owned and still do both spring and gas rammed guns and even the gas rammed ones can be tuned to a certain degree, not to mention cleaning out the factory gunk a proper lubing with moly in all the right places.
I think we can all agree, that a gas piston, is not a spring.
Same physics for both in the compression chamber/seal. But yes, to keep it on track the compression chamber/seal is the OP’s point of reference. Everything regarding coil spring and its specific oil can be thrown out. Water’s got a little muddied ...sorry about that. Whatever the term, gas springer, gas ram, etc. is definitely different from a coil springer, but the word “springer” is inclusive to both. Making mud pies now?
The more powerful the springer, the more careful you have to be with that ‘compression chamber oil. My thinking is stand it sitting up after applying and don’t shoot for at least a day. It will go boom!
Steve may be correct in that some of the degree of thought is a holdover from the leather days. Done moderately, I see no harm. In old coil springers and surely well used newer guns with synthetic seals, velocity will pick up. I still condition new seals with it. I give them a good rub down with it, let em sit for a bit then wipe them down before install. Don’t know if it does greater good but I feel fuzzy with it.
