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Hi , hope someone can help me here I tried to post an image last night without success. Never used to be a problem so can anyone tell me if things are now different. I copied the URL of the image into the box that comes up after selecting 'insert image' but all that would come up on the post...

That should keep you busy for a while :) I have a Bentley BR2 lurking under the bench in a state of flux. Lots done but lots to do - I try to do a bit more now and then but 'now' isn't very often these days. Looking forward to seeing those Mortons in due course if updating these drawings go...

Shouldn't make too much difference Chris but look out for the possibility of the rod catching the side of the case. Why not file between the buttons to bring the rod thinner at the same taper. - It pays to bolt the rod to a piece of plate that can be held in the vise. The bolts needing to be at...

Hi Chris No you're not (going mad) That's an important dimension that should be there - any deviation from the original designers intention will have an effect on the timing. You may have done so already but just check if that info isn't on another drawing. Wrist pin height is usually...

Hi RK, Lovely work again, they look really superb. What do you have planned next? I've had a long break but am about to start on a new engine this week Regards - Ramon

You had me there Den - how the hell did he know that then I realised it's at the bottom of the page:rolleyes: Yep a young 68 as of Friday - it was this time last year I was gearing up for a visit to the sawbones - that seems a long time ago now :) I have made several crankshafts now not just...

Hi Guys - I've never experienced any form of rust on the leaded steel liners made so far nor indeed on those commercial engines owned that I now know have had similar liners. The running surfaces of these small engines running on the usual castor based fuel soon acquire a coating of oil which...

Hi Chris - mind if I jump in here again? I have built several diesels now all bar one at 5cc and all have cast iron pistons. The first a 'Nova' used En1a leaded steel (12L14 equiv) for the one piece cylinder fins and liner. This was primarilly chosen because of machining the very thin fins...

Pete, As suggested previously you should take a look at the Model Engine News site. http://modelenginenews.org/ Ron Chernich offers a CD 'Book' of I/C engine plans which would do more than suit your needs. You need to look under 'Motor Boys' in the left hand menu. Though several are based on...

Hi Chris, that will help reducing the burrs but you shouldn't need to ream them - drill say 2.1/2.2 first then open up to 2.5 - these are clearance holes after all. With a nice sharp drill and breaking through each fin slowly you can reduce the burr to a minimum which can then be scaped off...

Hi Chris, Assuming from how you describe it you do not have a milling machine then making a small jig as suggested by Brian is really your best option. If you make it 'double ended' it can then position the holes for the crankcase too. Should you decide to do another engine - and I'm sure you...

Welcome from the UK Oldlunns As a fellow model aircraft engine (making) enthusiast it's good to see you here. What have you been up to so far - are those 'lower ends' in your avatar your work? Look forward to seeing some pics when you are able. Regards - Ramon

Gail, for years I've used these 'pegs' (as we call 'em over here) modifying them to suit various bits and pieces but I've never come across this mod before - brilliant - I'm off to buy some ;). Thanks for sharing this Thm: Regards - Ramon

Hi guy's - couldn't get on here earlier - my wife spilt water on the keyboard and the monitor on the main job - back on the laptop at last. 'Diesel' fuel - this is a perrenial problem for many would be builders but it can be overcome with perseverance in some but not all quarters. Firstly to...

Hi again, just re -read all the posts and took another look at the drawings - I see Ron Chernich drew them and his work is always excellent. I see however that where required (though not everywhere) he calls out for multiple holes on most parts eg .145 (4 places) (my dim) as distinct from the...

Hi 'Max' I read this for the first time today and took a look at the drawings on MEN - your link BTW brings me back onto HMEM not MEN. I replied but when I tried to post it it told me I had to register before I could post:rolleyes: - I lost the lot :mad: Hopefully this won't happen again...

Impressive work Pete. Congratulations on a fine piece of work Thm:Thm: Ramon

Hi guys, Thanks once again for all your kind and encouraging comments. Fuel is a commercial 'Sport' blend produced by Southern Modelcraft here in the UK - 38% paraffin, 30% ether and 30% castor oil plus 2% ignition improver I finally managed to put up a short video. This was taken when I set...

Hi Gus, I have been quietly following and enjoying your thread from the outset. I have not commented before as you have been in the good hands of Jason but if you are experiencing starting problems with your engine perhaps I can help. Although I have operated diesels over a longer period...

Hi Eddie, It's pleasing to hear you find the thread useful. My remark on a glow version probably being much louder was based purely on past experience (or rather exposure to) using open exhaust glow motors when flying model aircraft. The bark of the exhaust always appeared far more intense...