gear oil and lithium grease can damage your seals and O-ring... for all suspension is recommended fork oil and silicone grease... I use Motorex Fork oil and RSP slick-kick grease but next year i will using RSP fork oil in my all suspension and for servicing all suspension

Lithium products may contain petrochemical products which can damage NBR o rings. That's why suntour suggest silicon grease. 80W synthetic is safe on these forks

@@BassSwirls I contacted suntour about what kind of oil (synthetic or mineral) they said that it doesn't matter. I don't believe them

@@totoxahc hi.. I would go with synthetic...to reduce emulsification with water.. TBH These basic Suntour forks are so primitive it probably doesn't matter. Lol

@@BassSwirls What I'm worried is the oil damaging the rubber seals (swelling)

Silicon grease, available from plumber suppliers. Be careful not to contaminate your disk brakes with it. Its notoriously hard to remove.

Yessir.

it works? I've some 15wt rockshox oil and if you say that it works I'm going to use it instead of buying new oil

+daniel francis debe ser grasa a base de silicona

gracias

5years late...but I think its 80w synthetic gear oil you will need . NOT hypoid versions as there is additives that may harm the valve.

Suntour didn't seem keen to interact:(

@@BassSwirls what if i used hypoid

...there are additives that may be harmful to your fork.

@@BassSwirls i hope that it doesnt hurt mine.

Богдан Мазовецкий it wark better with sintetic

Portsonar - Plastico-

I've got a raidon fork and I've got the same problem, did you ever manage to stop the fork from losing pressure?

Hi guys did you try to clean all the dirt inside and reassemble and try if there is any news tell me

Replace Piston

i believe yes, if you do what he does on the vid, you basically opened the air chamber and you have to inflate it again after sealing it

yes

Suntour are the only forks I've seen that use gear oil in the air chamber, it might still work on other air forks though

My fork does this too, did you find a solution?

@@jasper8928 yeah I found the problem. I had a very small pin hole in the air can sleeve. I've tried plugging it with JB weld steel stick and epoxy but both only work for a while and eventually leak again. Every time I try to get a replacement air can from Suntour it's out of stock. It's been out of stock since Covid began. I went ahead and bought a Rockshox piggy back and a DNM coil over. Neither of them compare to the smooth action of the TriAir but hopefully Suntour will come thru with a new aircan for my shock or an entirely new shock. As for a fork that is leaking air it can only be a couple things. It's either the seals or the air piston or the valve stems. Fill it with air and put it under soapy water like you would a tire tube and your leak will reveal itself to you. Good luck. 🙋

@@jimig399 ahh ok, yes I will try that then, thank you very much :)

@@jimig399 THANK YOU ! great idea 😀👍👍

Change the seals inside

@ProxyBeatmaker The seal could be used. Or open the fork clean the parts in the air side .

piston problem

@@eleazarmanipon6965 yeah got it fixed had to buy a new piston

no way that can happen

This means you have a damaged o-ring. You need to disassemble the fork and replace damaged seal. It will most likely be cracked or not round in few places.

Богдан Мазовецкий is you’re going to complain at least spell correctly

Omg. This is only to seal the air chamber. It doesn't act like a lubricant for lags.

what does he use to seal ? is it grease?

It looks like silicone but I'd use lithium grease.

Omg. This is only to seal the air chamber. It doesn't act like a lubricant for lags.

FORKoil is not 80w!!! GEARoil is it.