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Old 06-16-2008, 02:19 PM   #1
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Default Having a blast breaking in this Novarossi :(

Well I have a 821B sitting in a Hyper 8.5 and let me just say, this thing is a joke to even get to fire up....

I have put the heat gun on the engine and cranked the temp up to 220F (melting my outterwears filter cover in the proccess....)

and the engine wants to turn over, but once I tighten down the glow plug the S/B can't turn the engine over.

Im stuck between, either the engine isnt warm enough to turn over....or the engine ends up being too hot and the fuel just evaporates and doesn't go into the engine....

right now I am charging the starter box back up... I have gotten the starter box to turn the engine over with the plug on, but only for a little bit and the engine didnt fire up.


I have only been able to fire up the engine for 2 secs and it stalled...

I'm almost out of ideas....and I am hating novarossi engines with a passion.
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Old 06-16-2008, 02:26 PM   #2
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turn the low end in a little and maybe idle it up some.
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Old 06-16-2008, 02:44 PM   #3
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i would be happy with an engine that is as tight as a Nova.

What starter box?

Make sure the piston is at the back of its stroke so there is some momentum when you hit the starter box....you can also try and get the starter wheel spinning and once its spinning at a good clip, push down on the car. This will give the wheel some momentum to spin through the pinch.

also, it is safe to loosen the plug about 0.5-1 turn in order to start it...once its started, fully seat the plug.

good luck! (you could also bring it to Wolcott or RCMadness for them to help you out, im sure)
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Old 06-16-2008, 02:50 PM   #4
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Its the duratrash dual 550 motor S/B, i think my battery was a little dead.
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Old 06-16-2008, 02:50 PM   #5
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im not sure if you meant you heated the engine to 220 or the head i usually heat the case up and alternate while heating heating the head for a bit then the case. i remember breaking in my 528 that was a pain but once broken in that thing screams
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Old 06-16-2008, 02:51 PM   #6
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i put the heat gun on it and checked the temp, it says 220F at the bottom of the cooling head, thats what I ment.
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Old 06-16-2008, 02:58 PM   #7
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Some starter boxes just don't have the ass for breaking in a new motor. I like my Mugen box. It will still lock up on a tight motor but no where near as often as my friends Duratrax boxes.
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Old 06-16-2008, 02:59 PM   #8
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I just broke in my RB Modded P5x and I definitely had to heat the thing up, temp(?). Also running two packs to the starter box will help spin things a little faster. Then you are throwing over 14v at the starter box. I run lipos in mine and it cranks. It will smoke the starter wheel before it will dog out. I have a Ofna chrome top. My nova was tight though.
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Old 06-16-2008, 03:35 PM   #9
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i always heat my motor up until the crankcase is about 220... sometimes it is a big pain to get that first fire and idle out of a new motor!!
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Old 06-16-2008, 03:59 PM   #10
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This doesnt make any sense.

I checked the voltage on the gel pack and it says 15v when the motors start it goes down to 14.6v, yet I can not turn the engine over.

if I warm up the engine to 220 I cant stop the fuel from bubbling right out of the carb back into the fuel tank...

since when can't 2 550 motors turn over a simple .21
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Old 06-16-2008, 04:08 PM   #11
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man.. once u break that bad boy in.. u'll have fun with it.. that's the only thing i run now.. and i had it on a truggy..
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Old 06-16-2008, 04:19 PM   #12
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Ever since it said Duratrax on the side J/K first off , you don't need to melt things heating it up ! 175degrees is plenty warm, second if you think your boiling the fuel out of the carb, insulate it from the heat with ,say, a piece of tin foil. When you get the engine spinning put your finger over the pipe and prime it ,but only for a bit ,as soon as the engine gets fuel it should turn easier as well. Then put on your igniter and fire it up.
I have run in MANY NovaRossi's and they can be a booger to get fired up for the first time but I have yet to see one I could not get to go !
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Old 06-16-2008, 04:27 PM   #13
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Try using a stronger starter box like a mugen or an ofna truggy box. You're doing the right thing by pre-heating the engine before starting it. If you didn't know by know, Novarossi engine's as well as any other engine based on Novarossi (RB, JP, Max, etc..) has extremely tight tolerances and require at least a full gallon before getting a good race tune. Also, try using a hotter plug for break-in. Don't push it too much before that initial period or else you'll shorten the life span of the engine. That S821B is wickedly fast though just be patient. Good luck.

Last edited by Poppin Fresh; 06-16-2008 at 04:28 PM. Reason: Mispelling
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Old 06-16-2008, 04:38 PM   #14
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I used to have that duratrash box, It wouldnt turn an almost worn out O.S. 18 CV-R over without a fight. If you decide to ever get a stronger box, breaking that motor in will be much easier. Like many have said already though, warm that motor up to about 175 before trying to get it running.
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Old 06-16-2008, 05:24 PM   #15
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I discovered the weakness of the Duratrax box at a recent dirt oval race. Some friends dragged me along to help them out with tuning and what not. Of course one went to this race with two brand new motors and we are out in the snow with heat guns and Duratrax boxes trying to get these things broke in. It was hopeless. Fortunately I brought my Mugen box for my 1/8th onroad cars. A quick charge, a little adjustment to the pegs and all problems were solved.

I don't know if it is the motors or gearing or what but even though the Mugen box is also a twin 550 motor design it just has a lot more ass.
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