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In a piston engine, either a timing belt (also called a cambelt) or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the crankshaft and the camshaft. This synchronisation ensures that the engine's valves open and close at the correct times in relation to the position of the pistons.
A Halfords in Kirkstall, Leeds (2006). Halfords was founded by Frederick Rushbrooke, in Birmingham in 1892, as a wholesale ironmongery. [3] The company takes its name from Halford Street, named after the physician, Henry Halford, in Leicester, where Rushbrooke opened a store in 1902 and started selling cycling goods.
Belt replacement is an obvious solution, and eventually the mandatory one (because no belt lasts forever). Often, though, before the replacement option is executed, retensioning (via pulley centerline adjustment) or dressing (with any of various coatings) may be successful to extend the belt's lifespan and postpone replacement.
This is commonly referred to as a "non-interference" engine. Piston pins holding the pistons in place are locked by snap rings. The "Outer Shim Type System" allows for the replacement of the shims without the need to remove the camshaft. To adjust the valve clearance, adjust the shims above the valve lifters.
5 Water pumps replacement when replacing the timing belt. 6 comments. 6 Timing Chain. 1 comment. 7 Should be obsoleted. 3 comments. 8 Time to arrange the articles ...
A camshaft operating two valves. A camshaft is a shaft that contains a row of pointed cams in order to convert rotational motion to reciprocating motion.Camshafts are used in piston engines (to operate the intake and exhaust valves), [1] [2] mechanically controlled ignition systems and early electric motor speed controllers.
Part of the reason for the CF's relative unpopularity was the use of the slant 4 SOHC petrol engine from the FD and FE Vauxhall Victor – which was notoriously rough running, had high fuel consumption, and was susceptible to cam belt breakage. However, the CF became very popular as a base of special-bodied ice cream vans and mobile shops.
Alfa Romeo was the first manufacturer to use a variable valve timing system in production cars (US Patent 4,231,330). The 1980 Alfa Romeo Spider 2.0 L had a mechanical VVT system in SPICA fuel injected cars sold in the US.