JohnE Posted September 19, 2014 Share Posted September 19, 2014 I am fairly sure that my Hyper 7 TQ2 is tuned correctly, picks up nicely, blue smoke when accelerating and so on but its getting very hot after only a few minutes running. I don't have a temperature tester but the water test tells me that its hot, hot enough to boil the water away so it must be at least 100 degrees C The cooling fins on the engine are all clear and this is happening without the body being in place Any thoughts anyone Quote Link to comment Share on other sites More sharing options...
gavin28 Posted September 19, 2014 Share Posted September 19, 2014 (edited) when you say the water boils away, its meant to take about 3 to 5 secs to evaporate off the top of the head, it will boil if you put water on the glow plug. The engine should be around 110c to 130c, some engines like to be even hotter, i have a traxxas .15 pro that doesn't even wake up until it reaches 125c ish and runs at 140-150c when tuned correctly. If it's tuned correctly then you don't need to worry too much about heat as long as its not getting stupidly hot. If you are worried, just richen it up to cool it down. Edited September 19, 2014 by gavin28 Quote Link to comment Share on other sites More sharing options...
JohnE Posted September 19, 2014 Author Share Posted September 19, 2014 Cheers, in that case its probably ok Quote Link to comment Share on other sites More sharing options...
J.K Posted September 19, 2014 Share Posted September 19, 2014 A temp gun is a very handy tool, worth the investment regardless of running nitro or leccy Quote Link to comment Share on other sites More sharing options...
JohnE Posted September 20, 2014 Author Share Posted September 20, 2014 thanks guys, I will get one of these http://www.modelsport.co.uk/fastrax-temperature-tuning-temp-gun-and-screwdriver/rc-car-products/374120 Slightly off topic but here is a comment from a nitro virgin If I set my car strictly to the manufacturers engine settings it runs like a bag of nails however out of the box it was smooth and picked up nicely, no hesitation, no bogging down and some blue smoke, it ticked over nicely so I am wondering if when I bought it the engine settings were not strictly to the original otherwise it would not have run Any thoughts Quote Link to comment Share on other sites More sharing options...
gavin28 Posted September 20, 2014 Share Posted September 20, 2014 Standard settings are just a guide to get you running for break-in, they are usually very rich settings, and rarely run great - its just a starting point for tuning. Quote Link to comment Share on other sites More sharing options...
JohnE Posted September 20, 2014 Author Share Posted September 20, 2014 Yes but mine ran superbly straight out of the box with no messing at all, very strange but then so is life its almost as though it had been tuned and had already been run in but it hadn't Quote Link to comment Share on other sites More sharing options...
gavin28 Posted September 20, 2014 Share Posted September 20, 2014 I always check/reset carb settings with new or used engines, i don't leave my engines fate in someone else hands It should have been set up to run rich from new, but sometimes there not, I've seen a new engine (a mates) with the idle gap set to about 3mm, (about 1/4 throttle) which if i hadn't checked it over for him, would of rev'd its tits off when he went to start it. Quote Link to comment Share on other sites More sharing options...
JohnE Posted September 20, 2014 Author Share Posted September 20, 2014 maybe that should be on the "running in " page cos mine sure as hell was excellent as soon as I started it. Luckily though I did not rev it particularly highly for at least 6 tanks of fuel Quote Link to comment Share on other sites More sharing options...
ajlovering Posted September 20, 2014 Share Posted September 20, 2014 I ran nitro for years and I found that they worked best at about 205 degrees F or 96 degrees C. Some worked better cooler and some hotter. If you take the head off and look at he piston it should be a fawn colour on the top. If its darker the engine is too hot Cheers Quote Link to comment Share on other sites More sharing options...
turtletom100 Posted September 22, 2014 Share Posted September 22, 2014 You can buy an infrared heat gun from eBay for about Quote Link to comment Share on other sites More sharing options...
bjsparks Posted September 26, 2014 Share Posted September 26, 2014 I see my problem , u guys have been talking in Fahrenheit, Ive been tuning to the point of a puddle of metal, oh well, then again it took 6 months to point the heat gun in the right direction, my engine was running at 98.6 for ages , thought it was weird Quote Link to comment Share on other sites More sharing options...
gavin28 Posted September 27, 2014 Share Posted September 27, 2014 (edited) I see my problem , u guys have been talking in Fahrenheit, Ive been tuning to the point of a puddle of metal, oh well, then again it took 6 months to point the heat gun in the right direction, my engine was running at 98.6 for ages , thought it was weird Made me laugh mate Edited September 27, 2014 by gavin28 Quote Link to comment Share on other sites More sharing options...
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