Screws for bleed vent TRF 501X dampers?

[kaszal]

I'd like to get the "54028 TRF buggy aeration damper set" and wanted to know what size screws you need to use the bleed vent. I read Jimmy's review and it says 2mm screw. I can get these off ebay but what length e.g. M2 x 5 ? Does it matter if they're grub screw or flat head? Also wondering where's the best place to buy e.g. eBay or can you recommend a Tamiya dealer? Thanks

[simoncrabb]

Yep, M2 x 5.

I bought Yokomo ones, purely cos they were in stock wherever I was ordering.

They all tend to be socket head - 1.5mm hex driver.

[kaszal]

I understand these "aeration" dampers have no rubber diaphragms. 'Scuse me if this is a silly question, but how come it's OK for the air to mix with the oil on these dampers? Thanks

[simoncrabb]

Basically it's cheating...

The design accepts that air will be in the shock, and thus through the action of the shocks will be distributed as tiny bubbles in an oil and air emulsion.

Result is consistent damping throughout the travel of the shock, just like it would be if there was no air in it at all. But the action will be slightly lighter than just the oil on it's own.

That's how I understand it anyway, might be wrong...

[Carno]

If you buy the TRF Aeration dampers the bleed screws are in the box.

I understand these "aeration" dampers have no rubber diaphragms. 'Scuse me if this is a silly question, but how come it's OK for the air to mix with the oil on these dampers? Thanks

I was quite confused about this when i first built/installed them. In the supplied manual it tells you to leave the oil about 1 mm below the edge of the shock top, screw on the cap and that's it.

It doesn't mention anything about being able to bleed the shocks if you drill a hole in the top of the shock cap or the supplied screws.

As you can see on the TRF UK website http://www.trfracing.co.uk/page_1265187551237.html
If you use this process you will bleed excess air/oil out.

I'm still running them with air in atm. and not really having any issues. Will probably do them like on trf uk when i get different oil on sunday.

[Jan Larsen]

Putting an o-ring on the shaft on the outside of the shock will prevent the piston going above the oil, thus making sure it always stays airfree. I have no air in mine at all.