Do you grease the inside of your cylinders?

[SHÖCK]

I'm going to go through hell (putting together 4 V3 gearboxes in the next two days) and I'm mixing and matching the best components out of what was 4 non-working gearboxes into as many working ones as possible.

I just got a brand new CA high performance cylinder and piston head set and I am terrified by airleaks because of inadequate o-rings. I have had this happen to a JG and CA v3 gearbox and I don't know how to fix it since o-rings of the right size are impossible to come by. In the past, I was told too much grease can get the piston head stuck and kill the airseal or damage the o-ring on the piston head.

Do you guys grease your cylinders? I will be using either a aerosol sprayed silicone grease or thicker lithium grease in a tube (what I usually use on gears).

[hebet]

I use cylinder grease to grease...well the cylinder

[Styrak]

Cylinder grease or silicone oil. Not too much, just enough so the piston slides smoothly.

A few drops, rubbed around inside.

[m102404]

There's no need to grease the face of the piston head or the face of the cylinder head.

Use either silicone specific cylinder grease or plain white lithium grease (tube format from Canadian Tire).

If they're junker CA mechboxes that have their original grease in it...clean all of it out. The crap they use will actually dry out and "cake".

If you're o-ring isn't sealing...stretch it over the outside of the cylinder, heat it evenly with a candle/lighter and let it fully cool. Get it hot...but not melted. Fully cool, take it off and see how it fits now. Don't melt/bubble any of it.

Tys

[AngelusNex]

I put a few drops of G&P cylinder grease on my oring every time i disassemble my mechbox (as long as it's been at least a few weeks since the last time. Now I also own a big box oh orings too which have every size oring there is from 1mm diameter to 2" also every ring thickness. I've used it for replacing multiple different orings in different guns (aeg and gbb alike) and you can buy these sets at princess auto (i assume it's a franchise)

[hebet]

Originally Posted by Sepulcrum

I put a few drops of G&P cylinder grease on my oring every time i disassemble my mechbox (as long as it's been at least a few weeks since the last time. Now I also own a big box oh orings too which have every size oring there is from 1mm diameter to 2" also every ring thickness. I've used it for replacing multiple different orings in different guns (aeg and gbb alike) and you can buy these sets at princess auto (i assume it's a franchise)

I think I might have to get me some of those.

[lemegacool]

i only put sticky-g oring grease on the piston oring and works wery well!!! http://www.airsoftparts.ca/store2/in...oducts_id=1321 i also use that grease on my vrs 10 to lube the piston oring and cylinder body.

edit: with sticky-g grease on my orings i'm getting an impressive consistancy in my shots

[CDN_Stalker]

Originally Posted by m102404

There's no need to grease the face of the piston head or the face of the cylinder head.

Use either silicone specific cylinder grease or plain white lithium grease (tube format from Canadian Tire).

If they're junker CA mechboxes that have their original grease in it...clean all of it out. The crap they use will actually dry out and "cake".

If you're o-ring isn't sealing...stretch it over the outside of the cylinder, heat it evenly with a candle/lighter and let it fully cool. Get it hot...but not melted. Fully cool, take it off and see how it fits now. Don't melt/bubble any of it.

Tys

There's a new one for me (heating it), and to think last year I found out ported piston heads work best and most consistant with a wipe of silly oil on the O-ring, and all these years I've used a bit of grease and gotten odd readings from my chrony, all over the place or just plain low.