Spring Gun Tuning

[evert]

I have been recommended red lithium grease to use instead of Molly.

Has anyone a view on this.


Many thanks

Its all about what to use where.
Moly paste is great for lubrication of metal-to-metal surfaces, like the rear skirt of pistons without synthetic bearings.
On synthetic spring guides, other lubes can be good, I prefer PTFE containing greases on tight guides.
Thicker tacky greases like I suspect your red lithium grease may be, can be used sparingly to reduce vibrations when guide-to-spring fit is sloppy.

[pajj]

I'd stick with moly.

[threelander]

red lithium grease is used to stop the twang by blathering it on the spring

[Caveman001]

Great thread and many thanks to all for the great tips and advice.

[ricardolamos]

I have spoken at some length with Tony Leach about the best lubricants and he recommends a tiny amount of silicon oil+STP blue+WS2 for the inside of the compression tube of HW77s/TX200's and other sliding compression tube airguns.

For standard spring guns a smidge of STP blue+WS2 is good for lubricating the piston seal in the compression chamber.

For metal to metal a light coat of high moly paste(50% plus)/light grease is a highly recommended option.

Tony Leach makes a very good point of advising against super thick greases where tolerances are close(such as the inside of the spring guide) as the grease may grab and cause inconsistent/low velocities.

Well supported springs do not need masses of heavy grease.