Engine Doctor

The pic seems to show a lot of left thrust ? Is it like that or just a trick of the camera? Should have right thrust .

Can take a while, days even but it sticks well

No doesnt matter . Work equally well connected either way.

Surprising they were made in France in 1941 with what was going on there.

Build it , its never going to be worth a lot but a great fun model especially with a hot set up. Only needs two cheap 9g servos, mine lasted over ten years with no problems. Have fun and enjoy it 😉

Loose the canopy Dave and fit along the top , or fit inverted and get swan neck header pipe that bends around the nose wheel if you really dont like tail dragers. Personally I'd go for keeping plane as is and fit engine inverted wi a swan neck header pipe. Of course fitting a swan neck could alter the pipe configuation and transition on to the pipe. Nice retro looking model and they flew very well.

Sorry may not have been clear. Flammable solvent used in the US cleaner container is wasteful, open to air and a fire risk . Any minor spark from US cleaner or from static could ignite solvents used in the basin. Solvent used in a closed container like a jam jar with a screwed on lid uses far less solvent or cleaning agent and is safer as vapours cant escape . The Ultra Sonic waves travel through and clean just as well . For non flammable cleaning agents small open containers for smaller items are far more economical. PS . If using flammable solvents like cellulose thinners for cleaning dont use the heating function on the cleaner. You will find most fluids will heat up a little due to the energy being from the US cleaner. There is alway a risk when using flammable solvent but keeping the vapour confined in a sealed container greatly reduces any risk.

The jewellery type work ok but are not designed for slightly lager items. Suggest you buy a decent Vevor type with the capacity to hold a decent sealable container .For instance if you want to clean an oily item in a solvent then you need to be able to fit a container with a sealing lid into the US cleaner . Using solvent directly in the cleaner is a serious fire hazard. Put parts in a a glass or plastic jar cover with solvent /cleaner of choice then screw on lid on tightly. Place in the US cleaner and fill up with water . This saves solvent that can be reused if kept in the jar. You will have to filter it after a cleaning session .The Vevor US cleaners are good . I have a 1 or 1.5 ltr unit ideal for our engine bits , plus it has a built in heater that is very handy for certain cleaning jobs .

Some of the very early/first 120 fs had two pins screwed into the prop driver I believe, to prevent the prop from loosening. The downside was that if engine pre-ignited then damage to engine was more likely . If engine persists in throwing its prop try a second washer under the glowplug to lower the compression. If it helps but doesnt cure it then it may have a missing head shim. Its unlikely you will be able to buy one if its a pre surpass engine, but they are easy to make from anealed litho plate. I had an Enya 60 4c that was impossible to use due to prop throwing. A head shim totally cured it and I now have an Enya 120 4c waiting for the same treatment. Good luck keep trying.

Jon . Its worth keeping a can of ether if you run diesels to top up as it can evapourate quickly. Southern model can supply it at reasonable cost Your Dart does look very loose at the bottom of cylinder. Ideal fit is a good sliding fit up to the top of the exhaust port . Good luck and enjoy diesels and the " Oily hand society".

I did manage to find some 3/4 inch bar but was expensive and still a lot of waste when making small pistons. Old window sash weights were a source of cast iron but not that common now and being very old were stress relieved/ aged. A problem with machining any cast iron unless produced in quality bars is finding a slag bubble just when your getting near final cuts and having to start again ! I made a set of piston rings for a Tartan twin for a mate out of a window sash weight but took two goes to find some slag free iron.

You would have to either go to the shop and collect or arrange your own courier as he wont post it ? And Ive heard he wont supply model shops, is that true ? If the MSDS gives some indication of ingredients im surprised any enterprising individuals havent trued to replicate it ... or is it protected by copyright ?

Yes look up .Rapid Rc when they get back from Weston Park. Didnt realise Ripmax were now run by Amerang . 😊 Doesnt alter my opinion of their covering though.

Welcome to forum Carl.

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