hokuspokus Posted July 6, 2014 Share Posted July 6, 2014 Hi Guys,I am doing the engine run in on my boys Himoto cars when i was out there doing the first one when it started it was running a full throttle,and the smell was bad when i was holding it so i eventually got it stopped....can you tell me why it is going full speed once started and how do i get it to run the normal speed for the FIRST stage of the engine break in. Cheers graham Quote Link to comment Share on other sites More sharing options...
Zizzle77 Posted July 6, 2014 Share Posted July 6, 2014 You need to take off the air filter on the engine, and check the gap in the opening of the carb. It should be around 1mm to give you a nice idle. First check that your radio gear and servos are set right, if it closes when you apply the brake then you need to adjust the trim or adjust the linkage, if it doesn't close to 1mm with the brake on, then you will need to adjust the idle screw on the carb until it is about 1mm Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 6, 2014 Author Share Posted July 6, 2014 Thanks Zizzle,do i need to do that before i start the car etc,just i never had to do any of that to mine etc but mine is a different make than the boys. Cheers Quote Link to comment Share on other sites More sharing options...
Sweeney23 Posted July 6, 2014 Share Posted July 6, 2014 Take air filter off and look in the carb buddy and see when you turn your tx and rc on then either if all ok adjust the idel screw if not adjust the servos. Then start it 1 Quote Link to comment Share on other sites More sharing options...
behappy2755 Posted July 6, 2014 Share Posted July 6, 2014 Thanks Zizzle,do i need to do that before i start the car etc,just i never had to do any of that to mine etc but mine is a different make than the boys. Cheers Why you using etc so much? It means 'et cetera', which translates to 'and so on'. Literally it means 'and the rest'. Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 6, 2014 Author Share Posted July 6, 2014 Cheers Sweeney,just couldnt understand why it was going like that thought the thing was going to blow up lol Quote Link to comment Share on other sites More sharing options...
Sweeney23 Posted July 6, 2014 Share Posted July 6, 2014 Idle screw may have the carb open making it accelerate as if you press the trigger on transmitter Quote Link to comment Share on other sites More sharing options...
Zizzle77 Posted July 6, 2014 Share Posted July 6, 2014 Yeah, set it up before starting the engine Quote Link to comment Share on other sites More sharing options...
Anthoop Posted July 7, 2014 Share Posted July 7, 2014 Hi Guys,I am doing the engine run in on my boys Himoto cars when i was out there doing the first one when it started it was running a full throttle,and the smell was bad when i was holding it so i eventually got it stopped....can you tell me why it is going full speed once started and how do i get it to run the normal speed for the FIRST stage of the engine break in. Cheers graham As already said check the throttle gap is 1mm...and also check the mixture settings are correct according to the manual...count how many turns they are set at and then compare to the manual (note- that the settings given by the manual are never going to be perfect...only a guide). When the engine is revving high then the clutch engages...if you prevent the car from moving then the clutch will have to slip...this would explain the smell...try not to hold the car as it will cause wear and possible damage. When I start a new engine I have already checked the carb. settings...I have the wheels off the ground...if it is revving high at first start then I have my screwdriver in hand....I can richen the mixture and reduce the throttle gap to reduce the engine speed...ideally I want a rich mixture but a low enough idle speed to prevent the clutch engaging. Note- if it is revving extremely high and I have set the carb. correctly then there must be some problem- immediate shut down and investigate. 1 Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 19, 2014 Author Share Posted July 19, 2014 Cheers guys.only getting back now as was on holidays,i was out there trying to start the car,it started then cut out 2-3 times now it seems as if the pull start is stuck and wont pull...i dont really want to take it to a model shop and get them to break the engine in for me because i have another 2 to do after this one i knew i shouldnt of bought the 3 boys these cars nothing but hassle and dont want to be paying out money to a shop were it should be a straight forward job ....am ready to crack up Quote Link to comment Share on other sites More sharing options...
hipwell Posted July 19, 2014 Share Posted July 19, 2014 Cutting out is normal for a nitro engine on break in. The advise given in this thread is pretty much all you need, if this doesn't help you then it maybe worth paying the model shop a couple of quid to show you how to use one of them so you can pass it on to the other 2 engines. Behappy, that has no contribution to this post so that was a pointless reply. 1 Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 20, 2014 Author Share Posted July 20, 2014 I had to tap the flywheel with a hammer and screwdriver,but the pull cord only comes out the slightest bit,then it becomes impossible to pull,can anyone tell me what the problem is and how to overcome this,i have had the glow plug out and still wont pull. Quote Link to comment Share on other sites More sharing options...
Anthoop Posted July 20, 2014 Share Posted July 20, 2014 When the glow plug is out can you see the piston at the top there? If yes then heat the engine up with a heat gun/hair dryer and it should free up. If no then something is jammed or broken...time to take the head off and then the backplate to find the cause. Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 20, 2014 Author Share Posted July 20, 2014 Got it freed up early this morning so am hoping there is no more probs with this car,but will prob have hassle doing the 2 others if i know my luck. Quote Link to comment Share on other sites More sharing options...
Anthoop Posted July 20, 2014 Share Posted July 20, 2014 The more accurate you can be with your problem then the easier it will be to help.. Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 20, 2014 Author Share Posted July 20, 2014 still have the problems with the first one,so moved on to the second one problem after problem,read the other thread i have on,it says....still having problems... Quote Link to comment Share on other sites More sharing options...
YORKSHIRENEO Posted July 21, 2014 Share Posted July 21, 2014 (edited) If you are struggling to pull the pull start its normally 1 of 2 things. Either the piston is stuck at TDC (top dead centre). In this case remove the glow plug and gently pull the pull start, should free up. Other cause is flooded engine. If this is the case remove the glow plug and turn the car upside down to get rid of any excess fuel. Put plug back in and try starting. Im very new to nitro too and agree they can be frustrating to break in, tune etc but its the nature of the beast im afraid On another note, make sure you use after run oil after each use (not each tank or run but when you have finished for the day). Allow engine to cool slightly then remove glow plug and add 2-3 drops in the glow pug hole. Pull the pull start 3-4 times to allow the oil to coat the engine internals. You can see down the hole where the piston is. Try to make sure you leave the piston at the bottom of the stroke as this will stop it from getting stuck at TDC Edited July 21, 2014 by YORKSHIRENEO 1 Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 21, 2014 Author Share Posted July 21, 2014 Thanks Yorkshireneo,so how will i know if the piston is at the top or bottom,is it just himoto cars,and there contollers are weird with all the switches under the wee flip lid on it.i know these sound all stupid questions but its just i dont want to wreck the boys cars. Quote Link to comment Share on other sites More sharing options...
Anthoop Posted July 21, 2014 Share Posted July 21, 2014 so how will i know if the piston is at the top or bottom Take the glow plug out.....look down the hole it came from......pull the pull start......you can see the piston going up and down. Now, when you get the piston to the bottom by gently pulling...stop....that is (as near as you need it) BDC or bottom dead center...(you could even drop something like a cocktail stick into the hole and watch it go up/down). Put a mark on the flywheel that you can use as a reference point. Whenever the engine is not running then turn the engine until your mark lines up...then you know that the piston is in the lower portion of the stroke and out of the pinch area...it will make the engine last longer and also the piston will not get locked up.. All of this jizz to learn how to run a ( basically) primitive engine is a steep learning curve...but stick with it and it will all be second nature by the time you get to the third car... 1 Quote Link to comment Share on other sites More sharing options...
hokuspokus Posted July 21, 2014 Author Share Posted July 21, 2014 thanks for the info there Quote Link to comment Share on other sites More sharing options...
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