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Location:
Tamworth
Registered:
August 2004
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Re: Engine Running In*
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Thu, 07 April 2005 08:30
 
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its all been said before.
At idle there is insufficient oil-throw off to lubricate the pistons, rings and camshaft lobes when the oil is cold and prolonged idling should therefore be avoided.
In the initial driving period u should accelerate the car several times from 60 to 80 kmph in top gear at full thorttle(automatics in 2nd at lower speed). this will provide sufficient gas loading to build up pressure behind the top rings to ensure gas tight sealing against the cylinder walls.
Prolonged high speeds and low speed lugging should be avoided.
To much of running constant speeds is bad for bedding-in.
A mechanic i know that has built many engines for his own use told me that he once had an engine that he rebuilt, he flogged it from day 1. He said it was the best performing engine he had but it didnt last as long as the others.
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