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Genuine Mercury Grand Marquis Timing Chain
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6 Timing Chains found
Mercury Grand Marquis Timing Chain
Part Number: 5W7Z-6268-AA$52.71 MSRP: $82.50You Save: $29.79 (37%)
Mercury Grand Marquis Timing Belt
Part Number: F3LY-6268-B$45.90 MSRP: $67.10You Save: $21.20 (32%)Ships in 1 Business Day
Mercury Grand Marquis Timing Chain
Part Number: F3LY-6268-A$52.71 MSRP: $82.50You Save: $29.79 (37%)Ships in 1 Business Day
Mercury Grand Marquis Timing Chain
The Timing Chain of the Mercury Grand Marquis gears the crankshaft and camshaft to turn in unison so that valves open and close at the right time, giving the full-size sedan a smooth power and long life. The Timing Chain is made from metal links and is located inside the front of the engine where a constant flow of oil keeps wear to a minimum. Furthermore, its short length limits noise versus gears on the earlier Mercury pushrod Grand Marquis engines. Overhead cam versions of the Mercury Grand Marquis rely on the same basic Timing Chain concept as before. However, they now add hydraulic tensioners and molded guides to hold the chain slack and prevent the rattle that indicates stretch. Performance builders have the option to replace the factory chain set with roller Timing Chain varieties that come with multiple keyways, offset bushings, or slotted sprockets. This upgrade allows them to advance or retard cam timing in pursuit of either low-end punch or high-rpm horsepower. If you want even better precision, some complete gear or belt drive kits replace the Timing Chain entirely. This does not allow stretching and offers extremely quick cam timing adjustments. However, many enthusiasts stay loyal to the familiar chain thanks to its blend of durability, quietness, and cost effectiveness in the Grand Marquis lineup from Mercury.
We provide a wide range of Mercury Grand Marquis Timing Chain at the optimal prices. If you need Mercury Grand Marquis Timing Chain, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.
Mercury Grand Marquis Timing Chain Parts Questions & Experts Answers
- Q: What precautions should be taken when removing the Timing Chain, Timing Chain Tensioner and Variable Timing Sprocket on the Mercury Grand Marquis?A:One has to be very careful, as the crankshaft or Camshafts cannot be turned with the timing chain(s) removed; this will result in damage to the valves or pistons. Special tools are required to immobilize the camshafts during this process. This is not a "freewheeling" type of engine, so if it has "jumped time," there will always be a need to strip the Cylinder Heads. The timing system is very elaborate, and it is easy for severe damage to occur on the engine. Only experts should operate on this, and all work should be rechecked before engaging the engine.Begin by disconnecting the negative battery terminal. Then, remove the rocker arms in two stages: first, preload the valve springs on cylinders selected for testing, then rotate the engine 360 degrees to remove the rocker arms from the remaining cylinders, making sure to label and store all parts. Next, remove the timing chain cover and the crankshaft position sensor toothed wheel, observing the word "rear" stamped for proper replacement.When replacing the timing belt, attach the correct camshaft holding tools to ensure the camshaft(s) remain at TDC, preventing interference with valve timing. Move on to the right and left side timing chain tensioners, chains, and stationary guides. Mark these for reassembly as needed. Check for abrasion, cracks, or other forms of damage, and replace any worn parts. Additionally, test the tensioner.To do a preliminary check on the crankshaft, turn the engine with the starter motor or by hand for at least two complete revolutions, feeling for resistance. Mount the stationary chain guides and crankshaft sprockets in their respective positions, and fit the timing chains to match the bright links, dimples, and timing marks.The timing chain tensioner and guide should be bolted with the tensioner locked in a retracted position, then the bolts tightened before the lock is removed. Finally, compare the location of all timing marks while rotating the crankshaft back to TDC, and complete the process by reversing the steps followed during removal.
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