Break-in Method
06-19-2007 | 04:05 PM
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From: , WY
Break-in Method
*ok well i have a new rc10gt2 car in box and is these method i found onlin a good break in process for my new model i just wont the right break in proocess i will list it below*
Tank 1
Give the engine one-quarter throttle slowly for 2 seconds. Apply the brakes. If you pull back on the throttle too fast you may cause your engine to stall.
When there is a nice trail of blue smoke coming from the exhaust it means your fuel mixture is properly set and the engine is being lubricated. If no smoke is present, richen the fuel mixture by giving the air/fuel mixture needle a quarter turn until smoke is present.
Continue running the first tank of fuel, repeatedly giving it one-quarter throttle then braking until it is almost empty. Do not run the tank dry because this will result in a burned out glow plug from the fuel mixture being too lean and can also lead to damage from high engine temperatures.
Shut off the engine by pinching the fuel line to the carburetor and let it cool down for about 10-15 minutes before you start on your next tank of fuel.
Tank 2
Advance to half-throttle for 2-3 seconds for the second tank of fuel. Remember to accelerate smoothly through the entire break-in process. Do this repeatedly as long as you have fuel. When the second tank is done repeat the shut-off and cool-down steps as you did in the first tank of fuel.
Tank 3
On the third tank of fuel you will run for a 3-second count at half-throttle then brake. By this time the engine begins to loosen up and the idle may need to be adjusted down.
You will know an idle adjustment is necessary when your nitro RC won't sit still when idling. Use your tuning screwdriver to turn down the idle by turning the idle adjustment counter clockwise to reduce the idle speed. From this point forward you don't have to let your engine cool down between tanks.
Tank 4
For the fourth tank give your nitro RC full throttle for a count of 3 seconds and then brake. If your nitro RC is equipped with a multi-speed transmission and tries to shift into another gear let off the throttle and then brake. When doing a 3 second count on tank 4 remember to accelerate smoothly to avoid doing wheelies or flipping the RC over.
Tank 5
For this final tank of fuel you will repeatedly accelerate to full throttle in 3 seconds and hold for 2 seconds then brake. After this tank is done you will have completed the break-in process.
Tank 1
Give the engine one-quarter throttle slowly for 2 seconds. Apply the brakes. If you pull back on the throttle too fast you may cause your engine to stall.
When there is a nice trail of blue smoke coming from the exhaust it means your fuel mixture is properly set and the engine is being lubricated. If no smoke is present, richen the fuel mixture by giving the air/fuel mixture needle a quarter turn until smoke is present.
Continue running the first tank of fuel, repeatedly giving it one-quarter throttle then braking until it is almost empty. Do not run the tank dry because this will result in a burned out glow plug from the fuel mixture being too lean and can also lead to damage from high engine temperatures.
Shut off the engine by pinching the fuel line to the carburetor and let it cool down for about 10-15 minutes before you start on your next tank of fuel.
Tank 2
Advance to half-throttle for 2-3 seconds for the second tank of fuel. Remember to accelerate smoothly through the entire break-in process. Do this repeatedly as long as you have fuel. When the second tank is done repeat the shut-off and cool-down steps as you did in the first tank of fuel.
Tank 3
On the third tank of fuel you will run for a 3-second count at half-throttle then brake. By this time the engine begins to loosen up and the idle may need to be adjusted down.
You will know an idle adjustment is necessary when your nitro RC won't sit still when idling. Use your tuning screwdriver to turn down the idle by turning the idle adjustment counter clockwise to reduce the idle speed. From this point forward you don't have to let your engine cool down between tanks.
Tank 4
For the fourth tank give your nitro RC full throttle for a count of 3 seconds and then brake. If your nitro RC is equipped with a multi-speed transmission and tries to shift into another gear let off the throttle and then brake. When doing a 3 second count on tank 4 remember to accelerate smoothly to avoid doing wheelies or flipping the RC over.
Tank 5
For this final tank of fuel you will repeatedly accelerate to full throttle in 3 seconds and hold for 2 seconds then brake. After this tank is done you will have completed the break-in process.
06-19-2007 | 04:12 PM
#2
Senior Member
RE: ~*please help~*please help~*
Sounds very amateurish to me. I'd either use the method detailed in the manual or [link=http://rbmods.net/enginetempering.php]this[/link]
This is also a load of nonsense. First it states that running the tank dry will starve the engine and damage it, then it advises doing exactly the same thing (starving the engine of fue) by pinching the fuel line.
ORIGINAL: rc10gt2guy7
Continue running the first tank of fuel, repeatedly giving it one-quarter throttle then braking until it is almost empty. Do not run the tank dry because this will result in a burned out glow plug from the fuel mixture being too lean and can also lead to damage from high engine temperatures.
Shut off the engine by pinching the fuel line to the carburetor and let it cool down for about 10-15 minutes before you start on your next tank of fuel.
Continue running the first tank of fuel, repeatedly giving it one-quarter throttle then braking until it is almost empty. Do not run the tank dry because this will result in a burned out glow plug from the fuel mixture being too lean and can also lead to damage from high engine temperatures.
Shut off the engine by pinching the fuel line to the carburetor and let it cool down for about 10-15 minutes before you start on your next tank of fuel.
06-19-2007 | 04:31 PM
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From: , WY
RE: ~*please help~*please help~*
i found it on a website and copy and pasted it on here i just want to now if these is a good method for breaking the motor or what and if not thenen can u show me a nother method like
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etc.....................please
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etc.....................please
06-19-2007 | 04:37 PM
#4
Senior Member
RE: ~*please help~*please help~*
I just did 
Here i'll even simplify it a bit for you.
1. "From the very 1st time you start your engine, plop the car on the ground & begin running it in a parking lot in 2-3 minute intervals, tuned only *slightly rich* getting the temps up in the 200F range on a normal day. Every 2-3 minutes, shut the engine down & let it cool completely with the piston at BDC, and then fire it back up; continue this cycle until you've run 15 min or so, and then bump up to 3-4 minute intervals. Vary the RPM and don't be afraid to get the temps in the 200's. What you want is heat cycling of the components without the incredible stress that comes with breaking an engine in when it's overly rich & cold. After cycling the engine in this manner for about 20-25 total minutes, it'll be ready for the track and race tuning. I realize this method goes against the old-school "idle on the box" routine, but you'll be amazed once you've completed this break-in routine, your engine will still have amazing pinch w/out sticking at the top AND your engine's compression will last far longer than it will with the "old school" method."
Here i'll even simplify it a bit for you.
1. "From the very 1st time you start your engine, plop the car on the ground & begin running it in a parking lot in 2-3 minute intervals, tuned only *slightly rich* getting the temps up in the 200F range on a normal day. Every 2-3 minutes, shut the engine down & let it cool completely with the piston at BDC, and then fire it back up; continue this cycle until you've run 15 min or so, and then bump up to 3-4 minute intervals. Vary the RPM and don't be afraid to get the temps in the 200's. What you want is heat cycling of the components without the incredible stress that comes with breaking an engine in when it's overly rich & cold. After cycling the engine in this manner for about 20-25 total minutes, it'll be ready for the track and race tuning. I realize this method goes against the old-school "idle on the box" routine, but you'll be amazed once you've completed this break-in routine, your engine will still have amazing pinch w/out sticking at the top AND your engine's compression will last far longer than it will with the "old school" method."
