Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [break-in]

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Is it necessary to 'burn in' or 'break in' a new car?

I've just bought a new 2011 plate car. I've heard stories of people 'burning in' engines for the first few hundred or couple thousand miles using methods such as: Not driving above 50 mph. Varying the revs more than usual throughout the entire…
Alex Humphrey
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How do I properly break in an engine after a rebuild

I just changed my engine's piston rings and do not know how long I should let the engine break in. The engine is an '06 Chevrolet 1.5L SOHC. And how is the procedure done just by letting it sit idly?
method
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Should I avoid hard braking when I've changed my discs and pads?

I had my brake pads and discs changed a few days ago. Should I make any changes to my driving style to "run them in" or anything, like not braking hard, or avoiding prolonged breaking?
George
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My Lexus RX 350 back window shattered. Is this possible by weather or only a person?

Find more images here. I live in a Toronto suburb on the East side, and recently the weather has been inconsistent. A few days ago it was sunny above 0, and then on the 24th of this month, there was freezing rain and below 0 degrees Celsius.…
alber
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Scooter break-in period - Actual scientific backing or urban legend?

I don't understand the break-in periods needed for scooters/motorcycles. I know everyone says it, but I haven't found any explanation with some scientific backing to not making it an urban legend. Point 1: Even more so, when we see that the 2…
denislexic
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Semi synthetic oil engine break-in

I've finished rebuilding the engine of my motorcycle (4 stroke 650cc single-cylinder). For now it runned only once varying between 1000 and 2000 RPM for 5 minutes with a couple of short bursts after fully heated. I used Motorex Semi-Synthetic…
Anton
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Sticking a blade between door and window to open the door?

What's all this thing that we see in films, when to break into a car you stick a long blade with a kind of hook on the end and pull up to open the door? Was it ever possible to open a car door like that? It seems like a huge design flaw, that would…
Quora Feans
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Going more than recommended Speed in Break-in Period

I have a new Yamaha motorbike. Seller told me not to ride speed more than 50 Kmph for first 1000KM but I rode it 60 for 10 - 15 minutes due to some reason. How does it affect to my Motorbike ?.
Npn
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Which school of thought is right for breaking in engines - keep RPM below 3000 for the first 3000 miles, or rev up to redline?

My friend has overhauled his engine recently and he sought my advice about the most efficient way of breaking in his new engine (Peugeot 405 1.8L Petrol). It is usually said that you should keep RPM below 3000 in the first 3000 miles and avoid…
LFY MP7.3
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Running in oil a for light diesel engine (Japanese, Toyota 3L)?

What would you use as a running in (break-in) oil for this engine? I have this engine, and it has just been reconditioned, new pistons, conrods, crank and bearings.
user2800708
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New motorcycle missed first service oil change by 4k km...what could be the consequences?

So I was looking to buy a used Kawasaki z250, 1 cylinder bike that has around 5k km under his belt. Everything went fine untill I discovered it didn't get its first service at 1000km. I know that beside inspections it should get an oil change due…
cartmandos
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Driving after oil change - break in period?

There are found plenty of threads about breaking in a new engine after a rebuilt/ring job etc (rebuilt car engine, new car engine, moto engine, moto again) but I haven't been able to find one on how to treat an engine after an oil change. I have…
MooseLucifer
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Break-in engine

I am going to buy new car Mitsubishi Pajero Sport (Model: MBS MT 4x4). I've heard stories of people 'breaking in' engines for the first few hundred or couple thousand kilometers using methods such as: • Not driving above 80 km/h. • Varying the…
Joy
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Chevy 350 cam break in

Can I use a synthetic oil when breaking in my flat tappet cam? I’ve been to every auto parts store around me and can’t seem to find anything but synthetic. Bought a few qts of royal purple and some Lucas break in additive will I be alright or do I…
Jod
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Does a 2-stroke engine needs "break-in" after replacing cylinder and piston?

I just replaced cylinder and piston (with new gasket, rings, etc) in a 2-stroke 52cc string trimmer engine. It started at the first pull and sounds great, I let it run for 5 minutes, adjusted the carb and turned it off, waited for it to cool down…
devapo
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