Doug Ireland Posted November 30, 2008 Share Posted November 30, 2008 Matt,There was a very good article in the mag (October I think) about the "Gadget" for converting glow engines to run on model diesel fuel. I've been giving it some serious consideration and am surprised that no-one seems to have brought the subject up on the forum.Did you read this article? Quote Link to comment Share on other sites More sharing options...
Matt Posted November 30, 2008 Share Posted November 30, 2008 Yeah and was also prity intested but the current lack of diesel fuel is going to cause a bit of a problem. Wasn't the gadget a yank product? Quote Link to comment Share on other sites More sharing options...
Pat (rActive) Harbord Posted November 30, 2008 Share Posted November 30, 2008 I understand a few drops of washing up liquid will ensure the substances mix properly. I'm sure Alex Whittaker did a recent article that covered DIY fuel Quote Link to comment Share on other sites More sharing options...
260 Flyer Posted December 1, 2008 Share Posted December 1, 2008 Unless your engines are clapped out old slurpers 50% paraffin will run too hot! Quote Link to comment Share on other sites More sharing options...
Matt Posted December 1, 2008 Share Posted December 1, 2008 I think my engine is a 'clapped out old slurper' but lets not get personal about this. Quote Link to comment Share on other sites More sharing options...
Matt Posted December 1, 2008 Share Posted December 1, 2008 Well success at last I added almost 1 extra part paraffin...so thats almost 2 parts paraffiin (i couldn't fit it all in the jar) 1 part ether and 1 part fully sinth motorbike 2 stroke oil.However it may have run the other day without the second part of paraffin IF I hadn't forgotten how to get a diesel engine runnin...shall we just put that down to finger trouble . I'd also forgotten how sesitive they are to fuel tank position with having no tank pressure.What a little cracker of an engine (once she's going) but what a racket!!!! Anyone know where I can get a silencer for a AM 15? I don't think I'll be allowed to run this at the flying club.Rob, how will I know that my engine is running hot? She got through 2 oz of my home brew without complaining (seemed to run forever) what will it do if getting too hot?Matt. Quote Link to comment Share on other sites More sharing options...
260 Flyer Posted December 1, 2008 Share Posted December 1, 2008 MattOne symptom will be the conversion of the engine into a paperweight with no moving parts! More likely as the engine warms up it will sound harsh and over compressed, as you back off the compression it will go under compressed so you increase the compression and the whole cycle will start again. Quote Link to comment Share on other sites More sharing options...
Bert Posted December 1, 2008 Share Posted December 1, 2008 Matthew Kemp wrote (see)Well success at last I added almost 1 extra part paraffin...so thats almost 2 parts paraffiin (i couldn't fit it all in the jar) 1 part ether and 1 part fully sinth motorbike 2 stroke oil.However it may have run the other day without the second part of paraffin IF I hadn't forgotten how to get a diesel engine runnin...shall we just put that down to finger trouble . I'd also forgotten how sesitive they are to fuel tank position with having no tank pressure.What a little cracker of an engine (once she's going) but what a racket!!!! Anyone know where I can get a silencer for a AM 15? I don't think I'll be allowed to run this at the flying club.Rob, how will I know that my engine is running hot? She got through 2 oz of my home brew without complaining (seemed to run forever) what will it do if getting too hot?Matt. Well done Matt! Richly deserved success Just run it a little on the rich side and the synthetic oil should take care of it. IMO the AM diesels should always run a bit rich if you don't want to wear 'em out, I've had a few AM15s in control liners (and one in a Sharface! ) and they are great motors, very light for their power output. The AM10 was even better, a really hot motor for its' day.There was was a version of the 15 made with a muffler, but only for a short while after A-M stopped making them and they went to someone else whose name escapes me at the moment. If you use an 8 x 4 instead of a 7 x 6 you may get away with the noise.Bert Quote Link to comment Share on other sites More sharing options...
Matt Posted December 1, 2008 Share Posted December 1, 2008 Thanks Burt I'll give that a go.It's quite a nice feeling running a motor on your own fuel. The AM was very tolerant to nedle valve changes so I run her on the rich side anyway...about 1/4 turn back from peak. Quote Link to comment Share on other sites More sharing options...
Doug Ireland Posted December 1, 2008 Share Posted December 1, 2008 When I flew C/L years back it was common practice to have two of the three pipes going into the fuel tank facing into the propwash, this helped to pressurise the tank a bit. Quote Link to comment Share on other sites More sharing options...
Matt Posted December 1, 2008 Share Posted December 1, 2008 Nice one...I'll have to try that! Quote Link to comment Share on other sites More sharing options...
Bert Posted December 2, 2008 Share Posted December 2, 2008 Doug Ireland wrote (see)When I flew C/L years back it was common practice to have two of the three pipes going into the fuel tank facing into the propwash, this helped to pressurise the tank a bit. I don't think it does much to pressurise the tank, but it certainly stops the slipstream pulling the fuel out. If you blow across the the end of an open tube it will pull the liquid up the tube, if you see what I mean Quote Link to comment Share on other sites More sharing options...
Former Member Posted December 2, 2008 Share Posted December 2, 2008 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Doug Ireland Posted December 2, 2008 Share Posted December 2, 2008 I think some bloke called Venturi came up with that one first! Quote Link to comment Share on other sites More sharing options...
Bert Posted December 2, 2008 Share Posted December 2, 2008 Must have been Italian... Quote Link to comment Share on other sites More sharing options...
ERIC CLAPHAM Posted December 8, 2008 Share Posted December 8, 2008 Can I suggest getting in contact with Brian Winch. He of the oily hand and guru of all things combustion engine. Try "[email protected]" I am sure he will provide an answer. Quote Link to comment Share on other sites More sharing options...
JOHN WATERS Posted May 16, 2009 Share Posted May 16, 2009 The mix we use here in oz is 20% castor oil 50% kerosine (jet a1 fuel) 30% ether hope this is of help to you Quote Link to comment Share on other sites More sharing options...
Myron Beaumont Posted May 16, 2009 Share Posted May 16, 2009 You do need a few drops of Amyl nitrate or nitrite Just like petrol needs anti-knock additives .God knows where you can buy it these days (H&S and all that 'cos it is a heart stimulant ) The oz mixture would be OK with their quality castor oil -Here i would start with a 30/30/30/ mix plus the additive & then gradually increase the paraffin ( sorry Kerosene ) content 'til it doesn't run right . Quote Link to comment Share on other sites More sharing options...
Matt Posted May 17, 2009 Share Posted May 17, 2009 I looked up the formula for D1000 and it is as follows:- Ether 35% Kerosene 35% Castor oil 28% Isopropyl Nitrate 2% Rather nice of them to publish the recipe I'll be using this next time I mix up a batch...all I need to do is build a model to fit the motor too. Quote Link to comment Share on other sites More sharing options...
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