Tappets help

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Tappets help

salam I gave car to mechanic for adjusting tappets..after he completed he said " rocker arms are finished and the sound will b there" ..
soo i want to know what this rocker arms is ? and what are its effect like ..will the car consume more fuel ? the tappets setting will move from their place?

please if somebody can put a little detail.

Gari.pk User 8616 asked on 09 Sep 2010 11:37:23 am

1 Answer

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Rayan - on 09 Sep 2010 11:37:33 am

well! the camshaft has cams which actuates tappets called toutey by mechanics.these tappets are connected through rocker arms to valves.The cam actuates rocker arms that press down on the valves, opening them. Springs return the valves to their closed position. These springs have to be very strong because at high engine speeds, the valves are pushed down very quickly, and it is the springs that keep the valves in contact with the rocker arms. If the springs were not strong enough, the valves might come away from the rocker arms and snap back. This is an undesirable situation that would result in extra wear on the cams and rocker arms.
If the timing of opening and closing of intake and exhaust valves are not correct proper compression of air-fuel mixture will not take place thus improper combustion resulting in low power.
hope i have answered your querry

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