RE: Nitro Engine Care And Breaking In/Starting Instructions  
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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> RE: Nitro Engine Care And Breaking In/Starting Instructions
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RE: Nitro Engine Care And Breaking In/Starting I... - 1/21/2007 3:39:55 PM   
kipsmyhero


 

Posts: 3
Joined: 12/26/2006
From: Palm Harbor, FL, USA
Status: offline 		Hey Guys Fuelman,Dr. Nitro Everyone thanks for helping me understand this more ive gotten my new truck to break 50 and now im racin with it so thank you all again

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RE: Nitro Engine Care And Breaking In/Starting ... - 1/23/2007 4:23:17 AM   
SAVAGEJIM



Posts: 4446
Joined: 7/6/2005
From: behind my 'puter, USA
Status: offline 		Bump! Fuelmans's post #6 so needs to be made into a sticky! Until it is, we should all continue bumping up this thread for anyone who wants to learn the heat cycling method.

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RE: Nitro Engine Care And Breaking In/Starting ... - 2/18/2007 8:57:36 AM   
SAVAGEJIM



Posts: 4446
Joined: 7/6/2005
From: behind my 'puter, USA
Status: offline 		bump: please, moderators, make this a sticky!

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       Post #: 203

RE: Nitro Engine Care And Breaking In/Starting ... - 2/27/2007 12:14:21 AM   
bgfireman



Posts: 186
Joined: 10/28/2004
From: Dudley, NC, USA
Status: offline 		I agree this should be a HUGE sticky. I started breaking in my O.S. .18tm today. I am doing it as this thread says to. Boy aint this fun.

Alan
John 3:16 For God so loved the world (that means you and me)

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(in reply to SAVAGEJIM)
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RE: Nitro Engine Care And Breaking In/Starting ... - 3/1/2007 2:08:27 AM   
SAVAGEJIM



Posts: 4446
Joined: 7/6/2005
From: behind my 'puter, USA
Status: offline 		Bump! Fuelman's post #6 rulz!

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       Post #: 205

RE: Nitro Engine Care And Breaking In/Starting ... - 3/7/2007 5:40:58 PM   
eye one



Posts: 193
Joined: 9/17/2004
From: Fenwick Island, DE, USA
Status: offline 		Well I have just finished reading this entire thread and learned quite a bit of information. A buddy of mine bought a Fantom and used the heat cycle method and now swears by it, he has broken in a few engines this way. I did a little reading up on it on the RB Mods website before I saw this thread.

Very informative thread, thanks to fuelman and others. I recently purchased a LRP Spec 3 and plan to heat cycle it as described in this thread..............can't wait to do so. The only question I have is concerning "washing" the engine free of any metal fragments before starting it up. How do you go about this specifically? Spraybottle? That will probably melt though. If I pour some fuel in the engine where should it pour out of? The exhaust? How do you best get the fuel all over the engine? Where should the piston be, or do you move it around the cylinder? My concern would be getting shavings in the main bearing and between the piston and sleeve scratching it anyway. Any tips or recommendation on how to do this would be appreciatied.

My only concern with the method is the emphasis on ignoring tempeatures. Sure you can tell by sight and sound when an engine is running well but how do you avoid overheating? The impression I am left with is there is no such thing as overheating. I doubt it because my very first engine (HPI FE .15) I burned up. Are you suggesting that an engine would be starved for fuel at WOT, indicating it needs to be richened, before paying attention to it's temperature? Seems odd and if someone can elaborate as to why there shouldn't be concern in engine temperatures I would appreciate it. This bit of information has me suspicious. Thanks

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RE: Nitro Engine Care And Breaking In/Starting ... - 3/7/2007 11:43:45 PM   
downunder



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Joined: 10/10/2002
From: Adelaide, AUSTRALIA
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quote:

ORIGINAL: eye one
The only question I have is concerning "washing" the engine free of any metal fragments before starting it up. How do you go about this specifically?

What this means is making certain there aren't any bits of swarf or metal dust left inside the engine after all the parts have been machined and then assembled at the factory. Not everyone does it but it's a good idea to do so. The backplate has to be removed so you can flush any swarf out with fuel. Squirt a liberal amount of fuel through the exhaust port first so it runs down through the transfer ports to flush any swarf into the crankcase. This also helps lube the piston and liner but never try to turn a new ABC engine slowly through the pinch. In fact, don't turn it through the pinch at all until you're actually starting it for the first time. If turned slowly, the pinch at the top (interference fit between the piston and liner) will squeeze out any oil and you'll have metal to metal contact.

As for overheating, that only happens if the high speed setting (mixture) is too lean. No engine will overheat so long as the mixture is a little rich. This you can only find out by driving it and giving a quick burst at full throttle. If the engine screams with a clean high pitched sound it's too lean for a new engine. Open the main needle maybe half a turn and try again. What you're looking for is a slightly rough sound (a bit of misfiring) and obvious white smoke from the exhaust at full throttle. Forget about temperatures, so long as it's rich the engine will find its own operating temp and this will be well below whatever could cause any damage. Learn to tune by ear and recognise how the engine reacts when tuned properly and you'll never need a temp gun.

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       Post #: 207

RE: Nitro Engine Care And Breaking In/Starting ... - 6/16/2007 9:18:45 PM   
danker17


 

Posts: 35
Joined: 6/11/2007
From: brampton, ON, CANADA
Status: offline 		6. Start it up once cooled off and do it again. Repeat the procedure (heat cycling) a minimum of three times but I really prefer the first 15 minutes of the engines life is nothing but heat cycling. After the first run, you will probably need to start tweeking the low speed needle a bit and the high speed a bit as well, start driving it harder and harder each run. You can accelerate the cooling by holding the hair dryer over it set to just blow air but DO NOT SHOCK COOL IT WITH FUEL OR ALCOHOL during the break in heat cycling time. \




DO I LET IT COOL OFF TO AMBIENT TEMPERATURES ALL OF THE TIMES? you said minimum three or just fill tank and go>?

im about to break in an OS .18tm (newbie)

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RE: Nitro Engine Care And Breaking In/Starting ... - 6/20/2007 2:59:48 AM   
Fuelman


 

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Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline
quote:

ORIGINAL: danker17

6. Start it up once cooled off and do it again. Repeat the procedure (heat cycling) a minimum of three times but I really prefer the first 15 minutes of the engines life is nothing but heat cycling. After the first run, you will probably need to start tweeking the low speed needle a bit and the high speed a bit as well, start driving it harder and harder each run. You can accelerate the cooling by holding the hair dryer over it set to just blow air but DO NOT SHOCK COOL IT WITH FUEL OR ALCOHOL during the break in heat cycling time. \




DO I LET IT COOL OFF TO AMBIENT TEMPERATURES ALL OF THE TIMES? you said minimum three or just fill tank and go>?

im about to break in an OS .18tm (newbie)

let it cool to the point where you can comfortably hang onto the engine for an unlimited amount of time, it is then cool enough to move on.
Make the runs a few minutes each, not a full tank. You can top off the tank between runs, it makes no difference.


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RE: Nitro Engine Care And Breaking In/Starting Instruc... - 6/20/2007 4:23:45 AM   
david41990


 

Posts: 2
Joined: 6/18/2007
From: , CA, USA
Status: offline 		Man someone needs to help me why is after I run my car for a while and the fuel finishes and I add fuel again it wont start again until the engine cools ahhh sum help

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       Post #: 210

RE: Nitro Engine Care And Breaking In/Starting ... - 6/20/2007 4:29:42 AM   
danker17


 

Posts: 35
Joined: 6/11/2007
From: brampton, ON, CANADA
Status: offline 		hey fuelman, i dont know how serious this is but when i broke the engine the HSN needle wasnt set properly, it was 4 turns out from closed and it the manual it says it set to factory settings when it leaves OS and after i checked on google and the towerhobbies page pop up saying it was 2-1/2 turns from closed.

i dont know what I should do, should i do the break in procedure again at those settings?

.18tm

< Message edited by danker17 -- 6/20/2007 4:30:17 AM >

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RE: Nitro Engine Care And Breaking In/Starting ... - 6/20/2007 4:13:32 PM   
Fuelman


 

Posts: 1017
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline
quote:

ORIGINAL: danker17

hey fuelman, i dont know how serious this is but when i broke the engine the HSN needle wasnt set properly, it was 4 turns out from closed and it the manual it says it set to factory settings when it leaves OS and after i checked on google and the towerhobbies page pop up saying it was 2-1/2 turns from closed.

i dont know what I should do, should i do the break in procedure again at those settings?

.18tm

danker,
Follow the writen instructions, not what it was wet at when you got it. Trust me these things are just slapped together and the person doing the final assembly may not set the needles or set them to spec. for first start. No need to break anything in twice, just follow my instructions and you will be fine. The readers digest version is here: break in page


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RE: Nitro Engine Care And Breaking In/Starting ... - 6/21/2007 12:24:11 AM   
danker17


 

Posts: 35
Joined: 6/11/2007
From: brampton, ON, CANADA
Status: offline 		alright fuelman thank you, makes me happy that is not too serious. i was going by the written instruction but they have their tricks by leaving out factory carb settings in the manual. my engine must be broke in already, i will do some tunning tomorrow to get some experience because its my first nitro! ill keep in touch

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       Post #: 213

RE: Nitro Engine Care And Breaking In/Starting ... - 6/21/2007 10:02:00 PM   
danker17


 

Posts: 35
Joined: 6/11/2007
From: brampton, ON, CANADA
Status: offline 		so far today i have tried so much tunning and the truck either revs and picks up speed with the throttle close and when i hit medium and full speed it bogs and then shuts off if i hold it for too long.

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