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Model Forum / Radio Controlled / Land Models / January 2006Engines
http://www.nitrotek.co.uk/products.php?cat=14 Problem is I need a new engine. Loking at these pictures, the length of the crankshaft looks no where near long enough to acoomodate the clutch and fly wheel that is on mine. AM I being a real noob here? Or do I need to look else where? > http://www.nitrotek.co.uk/products.php?cat=14 > [quoted text clipped - 4 lines] > wheel that is on mine. AM I being a real noob here? Or do I need to look > else where? I would steer clear of those engines to be fair- my experience of Team Infinity engines is that they're a bit naff... What vehicle is this to go into? Just looking for a .18?  SignatureDan > > http://www.nitrotek.co.uk/products.php?cat=14 > > [quoted text clipped - 8 lines] > Infinity engines is that they're a bit naff... What vehicle is this to go > into? Just looking for a .18? It's to go in a tamyia tdx/tgx (one of those 2). I'm after nothing special really. Would prefer some of this rotostart business though, god only knows how much it p***ed me off repeatedly tugging that pull cord. As I said I've sourced a few engines and they all seem to have seemingly short crankshafts compared to mine. >> > http://www.nitrotek.co.uk/products.php?cat=14 >> > [quoted text clipped - 19 lines] > crankshafts > compared to mine. Ok, here goes my $0.02. Team Infinity engines are garbage! I would advise against them strongly d/t first hand experience with one. My bud bought an Acme Conquistador last year and it came with the TE .15 in it. Bugger to start (pullstart) and overheated like it was going out of style. Power was decent but not great. Couldn't max out RPM's as we had to leave the HSN super rich to keep it from melting. Now, the crankshaft on your existing engine might be an SG (pilot) shaft, which is much longer than the shaft on those TE engines. The SG shaft is threaded at the bottom and smooth the rest of the way up. So, to find you a suitable engine we need some answers first: 1. Side or rear exhaust? 2. Slide or rotary carb? 3. Is the shaft a) short threaded, b) long threaded or c) SG; pics of each below: SG-->http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXHLV6&P=0 Short Threaded-->http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGGP8&P=0 Long threaded-->http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGGP7&P=0 4. Is there room behind the engine to insert a shaft to start the motor with rotostart? The rotostart shaft would enter the backplate at the top left corner. Here's a rotostart backplate: http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXERG0&P=ML I went thru the same hassles when I started the hobby and got two MT's with bum engines and had to figure out what replacement would fit for a minumal cost! Doc > >> > http://www.nitrotek.co.uk/products.php?cat=14 > 2. Slide or rotary carb? I'll answer the rest in one go just after I clear the above up. THis is where you most definetly realise I am a complete NOOB! I take it rotary is where the if you move the throttle arm and look into the carb. The plate that comes over rotates to close.open the air flow. A slide will slide in a straight movement? Or am I totally off? >> >> > http://www.nitrotek.co.uk/products.php?cat=14 > [quoted text clipped - 8 lines] > slide > will slide in a straight movement? Or am I totally off? Ok, with a rotary carb, moving the throttle arm turns a little barrel inside the carb body. The barrel has a hole in it and the more throttle you give it the bigger the hole gets (or rather the more of the hole is exposed). With this type of carb movement is parallel to the engine (front to back). Slide carbs have a slide that controls the size of the throttle opening. This slide moves in and out with throttle application. Carb movement is perpendicular to the engine (side to side). Slide carb pics: http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXFRE3&P=7 http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXDLP1&P=7 http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXJYV1&P=7 Rotary carb pics: http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGEH4&P=7 http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGEF1&P=7 HTH, Doc > >> > http://www.nitrotek.co.uk/products.php?cat=14 > 1. Side or rear exhaust? > 2. Slide or rotary carb? Rotory > 3. Is the shaft a) short threaded, b) long threaded or c) SG; pics of each > below: SG (What does it stand for? If anything) > 4. Is there room behind the engine to insert a shaft to start the motor > with rotostart? The rotostart shaft would enter the backplate at the top > left corner. No I wouldn't think so. There is a fuel tank in the way. > I went thru the same hassles when I started the hobby and got two MT's with > bum engines and had to figure out what replacement would fit for a minumal > cost! Minimal costs are definitely the key words with me! Others call me cheap skate hehe. >> >> > http://www.nitrotek.co.uk/products.php?cat=14 > [quoted text clipped - 19 lines] > Minimal costs are definitely the key words with me! Others call me cheap > skate hehe. Your forgot which type of exhaust you have. Side or rear? Doc > >> >> > http://www.nitrotek.co.uk/products.php?cat=14 > > [quoted text clipped - 23 lines] > > Doc DOH! side. >> Your forgot which type of exhaust you have. Side or rear? >> >> Doc > DOH! side. So, you now know you need side exhaust, rotary carb, SG crank w/ pullstart. The pickins' will be slim without some mods. If you can find a clutch nut for use with standard cranks (threaded) that will work with your clutch shoes and clutchbell you'll be much better off choice-wise. All I could find that was cheap and decent was this: http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXHTN0&P=0 Doc |
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