Topic: DIY Air / Bubble trap

Can anybody point me in the direction of a supplier of  a 4 or 6oz bottle with a screw top like the one used by bvm? Also who sells the paper filters? Does mick reeves still do them?

UK suppliers would be best

The Bottles are a pharmaceutical product made by "Nalgene" Digitech in Belgium used to sell all the parts separately but have now changed direction so no longer do.

You could use a filter type clunk fitted as per normal fuel tank.

Great information but I dont think they will sell me  a couple. Glens models does a 1/8 litre (8oz) petrol tank, might go with one of those.

Found a supplier of the bottles in the uk just need a supplier of the paper filter pick up. Anybody???

It's already been said, but a felt clunk will do the same job.
They don't let air through.

Have a trip down to your local friendly auto factors, and ask to see some injection fuel pump filters.  They are bag like things that make fantastic bubble trap filters.  You would need to cut them down a bit, and find a neat way of mounting them (easy if you have access to a lathe).  Or, a felt clunk works fantastically well.

Andy

Found a supplier of the bottles in the uk just need a supplier of the paper filter pick up. Anybody???

Yes, I will be selling some Fram CG3388 paper filters soon.   

Giancod have some small tanks at £1.27 (248cc / 8 floz).
Might need to replace the ally tube with brass but they are certainly cheap enough. 

http://www.giantcod.co.uk/248cc-fuel-tank-accessories-p-407304.html

You will need to change that bung and fuel tube too. 

tygon tube is recommended for petrol / jet fuel - so , yes that short piece of silcone tube would need replacing.

The bung looks like it is rubber. if not, there is a replacement bung available from JPerkins;
5513401 DB401 GLO-FUEL REPLACEMENT BUNG SRP £1.59

So the DIY UAT is a worthwhile project and save a wad of cash too. 

Actually the bung that comes with the GC fuel tanks is ok for kero, I have had one in a jar of kero now for about three months.

good info on the bung, I will get some tanks ordered from Giantcod

Found a supplier of the bottles in the uk just need a supplier of the paper filter pick up. Anybody???

Hi TT, if I may ask, who was the supplier of the bottles you quoted.

Ebay my friend, I also got a plastic winchester bottle 2.5litre capacity £12.99 delivered great fuel tank!!

Here's mine:

Petrol-proof  bung.  Soft 1/8in brass tube from Inwoods.



Internal pipe filed away.



Metal ends removed from filter - gentle heat melts the glue, but they also sometimes pull off with little effort.  Filter epoxied onto pipe.





New ends from Proskin, G10 or whatever



Cont on next post

New ends epoxied in place.



Slec tank fittings.  After two years the O-rings are still OK with no leaks, but the nut mustn't be over-tightened during assembly or the O-ring pops off the sides of the internal hex.



And here is how it looks.  Dubro 4oz tank



I install mine inclined at 45deg to encourage any bubbles to congregate round the tank fittings.

Gordon

Fram CG3388 pleated paper filters on ebay (UK)   
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250988089843

no buy it now, I never bother with auctions, when I want it I want it now 

ok, next listing will be buy it now
how much do you want to pay for them? 

how much do you want to pay for them? 

This one is buy-it-now and a princely £1.26, but the overseas postage seems a tad excessive    - soon sorted by enlisting the help of a friend or relative over there 

http://www.ebay.co.uk/itm/New-Fram-Fuel-Filter-CG3388-Gas-Gasoline-/220591331954?pt=Motors_Car_Truck_Parts_Accessories&hash=item335c449a72

ok, next listing will be buy it now
how much do you want to pay for them? 

As little as possible. 

I install mine inclined at 45deg to encourage any bubbles to congregate round the tank fittings.

Gordon

One other point on that I believe a lot of guys miss, air/bubbles will always travel to the top, so good installation practice of a bubble trap/UAT is to have it as low as possible, so any air bubbles will always be trying to get to get out of it back into the main tanks.

what kind of fuel flow are you guys hoping to get through the small brass tubes?? will you be running p160's etc