Ron Gray Posted September 23, 2023 Share Posted September 23, 2023 Me too Peter, as long as you’re fuelling from a filtered supply all is good! Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted September 23, 2023 Share Posted September 23, 2023 11 hours ago, Martin Harris - Moderator said: Good point Manish - and why I always have good quality filters on my fuelling system. Well, after a good night's sleep I realise the real problem of filling the tank using the carburettor feed, is it's putting the dirt straight into the carburettor and the filter is only filtering exhaust muck. Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted September 23, 2023 Share Posted September 23, 2023 All I can say Paul is that you must have a really dirty fuelling system! 1 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted September 23, 2023 Share Posted September 23, 2023 (edited) 10 minutes ago, Ron Gray said: All I can say Paul is that you must have a really dirty fuelling system! No I get through a lot of fuel, 4 days flying this last week on my Raptor .50, that's around 3 litres of fuel this week and I will be flying again this afternoon. Ps, I forgot to mention, I do a lot of fuel mixing, at the moment some local rubbish mixed( dirt in the bottom of the container) with the blue British stuff that Jon hates with 2% of that loverly Castor oil, also a bit of dirt on the funnel won't help. Edited September 23, 2023 by Paul De Tourtoulon Ps Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted September 23, 2023 Share Posted September 23, 2023 Yep, mucky fuel. 2 Quote Link to comment Share on other sites More sharing options...
Glenn Philbrick Posted September 23, 2023 Share Posted September 23, 2023 Three pipes with two clunks, one on carb feed and one on filler and emptying pipe with exhaust pressure on the third. Makes filling and emptying very easy with no carb flooding. Quote Link to comment Share on other sites More sharing options...
Andy Stephenson Posted September 23, 2023 Share Posted September 23, 2023 I practice, I've found that a second clunk isn't required if you direct a piece of fuel tube down to the bottom and the back of the tank. 1 1 Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted September 23, 2023 Share Posted September 23, 2023 (edited) 6 minutes ago, Andy Stephenson said: I practice, I've found that a second clunk isn't required if you direct a piece of fuel tube down to the bottom and the back of the tank. My preferred method. Used it for years with no issues. Plus always use sintered metal filter clunk in tank and supply in field box. Edited September 23, 2023 by Engine Doctor 1 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted September 23, 2023 Share Posted September 23, 2023 (edited) 22 minutes ago, Engine Doctor said: sintered metal filter clunk in tank No, thanks they do get blocked, ( fibres from cheap rubbish castor oils ) use a good filter in the carburettor fuel line if you must use a filter. The only filters I use are on my helicopters, and a felt chain saw clunk in my jet turbines. Edited September 23, 2023 by Paul De Tourtoulon a Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted September 23, 2023 Share Posted September 23, 2023 Don’t use fuel made with cheap rubbish castor oil! My fuel supply filter hasn’t needed cleaning - ever. 2 Quote Link to comment Share on other sites More sharing options...
Andy Stephenson Posted September 23, 2023 Share Posted September 23, 2023 2 hours ago, Paul De Tourtoulon said: No, thanks they do get blocked, ( fibres from cheap rubbish castor oils ) use a good filter in the carburettor fuel line if you must use a filter... I agree, no matter how much you filter the fuel from the bottle into the tank there's always the possibility of debris getting in especially if there's exhaust pressure applied to the tank. Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted September 23, 2023 Share Posted September 23, 2023 1 hour ago, Martin Harris - Moderator said: Don’t use fuel made with cheap rubbish castor oil! My fuel supply filter hasn’t needed cleaning - ever. Does 48€ the 5 litres for 10% nitro sound cheap to you ?. Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted September 23, 2023 Share Posted September 23, 2023 If it uses cheap rubbish castor (whether or not you favour any top quality first pressing oil) then it’s not only expensive but a total rip off - which I certainly wouldn’t be buying. My excellent 10% costs me £18 a gallon. Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted September 23, 2023 Share Posted September 23, 2023 5 hours ago, Paul De Tourtoulon said: No, thanks they do get blocked, ( fibres from cheap rubbish castor oils ) use a good filter in the carburettor fuel line if you must use a filter. The only filters I use are on my helicopters, and a felt chain saw clunk in my jet turbines. Simple answer is dont use castor oil cheap or otherwise. Its old school , not good for modern engines and varnishes engine internals. Synthetic is far superior. If its an old engine with iron piston and liner then high quality first pressing castor should be used. A sintered filter in your filling can will prevent anything getting into the tank. 1 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted September 24, 2023 Share Posted September 24, 2023 11 hours ago, Martin Harris - Moderator said: If it uses cheap rubbish castor (whether or not you favour any top quality first pressing oil) then it’s not only expensive but a total rip off - which I certainly wouldn’t be buying. My excellent 10% costs me £18 a gallon. You are in England, fuel is a silly price here and over taxed. What do you use and who sells it ?. Can MP me if you don't want to go public. Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted September 24, 2023 Share Posted September 24, 2023 We buy our fuel from Southern Modelcraft - unfortunately you’re unlikely to be able to buy it unless you’re visiting the UK. Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted September 24, 2023 Share Posted September 24, 2023 1 hour ago, Martin Harris - Moderator said: We buy our fuel from Southern Modelcraft - unfortunately you’re unlikely to be able to buy it unless you’re visiting the UK. I have a French passport, do I need a visa ?.😄 Quote Link to comment Share on other sites More sharing options...
GaryW Posted September 24, 2023 Share Posted September 24, 2023 13 hours ago, Paul De Tourtoulon said: You are in England, fuel is a silly price here and over taxed. What do you use and who sells it ?. Can MP me if you don't want to go public. I'm also using Southern Modelcraft Fuels.. 10 % Synthetic for my Shuttle (Heli ) @ £23 p/gal ( OS 32-F) & Sport Mix Diesel for my Ben Buckle Scorpion ( PAW 19RC ) @ £28 p/1/2 gal, which I buy direct from them & collect but then they ore only 2 minutes round the road from me Quote Link to comment Share on other sites More sharing options...
aidan mcatamney Posted October 1, 2023 Share Posted October 1, 2023 I have been using both two and three fuel tube systems since I started flying in 1986 and I've never had a problem with either. I always use good filters. Quote Link to comment Share on other sites More sharing options...
Torsten Spitzner Posted October 1, 2023 Share Posted October 1, 2023 Three pipes for me... Quote Link to comment Share on other sites More sharing options...
Martin Arnold 1 Posted October 7, 2023 Share Posted October 7, 2023 Two for me, with a Sullivan crap trap filter. Quote Link to comment Share on other sites More sharing options...
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