I have never used a 4s in any model but I to have a few in the wings. I have a CL 56 with a beautiful cast venturie setup that I would value any advice on setting up. see pic
The main area where I have questions is about the Saito 45 that I have. It was given to me a lot of years ago by a fellow RC flyer who just couldn't handle it (He was a motor mechanic but really struggled with any type of model engine!) I am currently building a vintage, RC assisted freeflight model, a ELF biplane from the late 30's, and this engine seems ideal for it. I will need to replace the silencer and I could do with some information.
- What is the thread in the head for the exhaust? I have only the very battered original (see pic)
- What sort of baffle does the silencer have in it. I can make what ever is necessary as I am too mean to spend money<G>
I think that this example of the 45 must be quite early. I see on the Saito web site that the shaft thread is quoted as M7 x1.0 but on my engine it is M6. The exhaust on the later engines seems to be a bent tube with a thread and locknut rather than the headed tube clamped in place with a ferule.
I also noticed that the 56 has a nipple into the front bearing wheras my 45 has a nipple in the backplate - is this to improve the lubrication to the front of the engine?
I am also thinking that I will need a proper RC carb for this engine at some future date. If anyone has a suitable item we could negotiate<G> BTW I am in the UK