Nissan 13207-3Z000 Seal-Oil,Valve

Valve springs, in particular, those which are broken, and valve stem seals, which are faulty, can be replaced during the course of avoiding the removal of the cylinder head; this requires generally two special tools and a source of compressed air. Waiting for the cylinder head on a stable bench, utilize the big and large clamp type of valve spring compressor and adapter where the bottom part of the tool should be resting beneath the working valve and to compress accordingly until the keepers can be easily removed with the help of magnet or small pliers. Extract the valve spring along with the retainer, to eliminate it, undo the old valve stem oil seal using pliers. Run the valve stem in the guide and using your fingers see whether it wobbles; this is an indication that the valve is bent. Rock the valve back and forth in the guide and look for binding; if there is binding then the valve maybe bent or the guide may be damaged and this means further procedures of cylinder head repair. Apply a coat of engine oil on the valve stem and then fasten the valve spool into the cylinder head, placing a piece of plastic container seal guard on the valve stem to avoid tearing of the new seal. If there is no seal protector, wind the cellulose tape around the valve stem of the faucet . With the multi-purpose grease provided, immerse the new seal and push it downwards over the valve stem; the protector or tape should be withdrawn when the seal hits the guide. Place the new seal into the deep socket appropriate for the diameter and gently tap it down to the top of the valve guide, then put the spring into proper place over the valve with the retainer. Next, co sam Main spring of the valve and its retainer; use the keepers to fit the spring in the grooves and if it is needed a small amount of the grease must be applied in order for the keepers to be stayed in place and properly fixed; the keepers should be inserted with the needle-nose pliers. Release pressure with the use of spring tool while confirming that the keepers are in place. Replace the lifters and camshafts, and finish the procedure in a sequence that is the reversal of that implemented during removal. Switch on the engine and observe its performance and the extent of oil leakage and strange noises originating from the region of the valve cover.

Broken valve springs and defective valve stem seals can be replaced without removing the cylinder heads, typically requiring two special tools and a compressed air source. To begin, remove the intake manifold collector and the valve cover(s), followed by the timing chain and the camshafts and lifters from both cylinder heads. Next, remove the spark plugs and turn the crankshaft until the piston in the affected cylinder is at Top Dead Center. If replacing all valve stem seals, start with cylinder number one and work through the firing order, turning the crankshaft 120 degrees to bring the next cylinder to TDC. Thread a long adapter into the spark plug hole and connect an air hose from a compressed air source, ensuring the use of a long spark plug adapter with a hose attached. Apply compressed air to the cylinder, then stuff shop rags into the cylinder head holes around the valves to prevent parts and tools from falling into the engine. Use a valve spring compressor to compress the spring and remove the valve stem locks. The valves should be held in place by air pressure; if they cannot hold air, the cylinder head should be removed for a valve job. Remove the spring retainer and valve spring, then the valve stem seal. Wrap a rubber band or tape around the top of the valve stem to prevent it from falling into the combustion chamber, then release the air pressure. Inspect the valve stem for damage, ensuring it rotates freely in the guide without binding. Reapply air pressure to retain the valve in the closed position, then remove the tape or rubber band. Lubricate the valve stems with engine oil and install the new valve stem seals, using a special tool or a deep socket and hammer to seat them. Install the valve spring over the valve with the more closely-wound coils and paint mark toward the cylinder head, followed by the valve spring retainer. Compress the valve springs and carefully position the valve stem locks in the groove, applying a small dab of grease to hold them in place. Remove the force from the spring tool and ensure the valve stem locks are seated, then disconnect the air hose and remove the adapter from the spark plug hole. After replacing all seals, position the crankshaft at TDC, then install the camshafts and lifters, followed by the timing chain. Finally, install the valve covers, spark plugs, ignition coils, and the intake manifold collector, then start the engine and check for oil leaks and unusual sounds from the valve cover area.

Broken valve springs and defective valve stem seals can be replaced without removing the cylinder heads, typically requiring two special tools and a compressed air source. Begin by removing the valve cover(s) and the camshafts and lifters from the affected cylinder head. Remove the spark plug from the cylinder with the defective component, and if replacing all valve stem seals, remove all spark plugs. Turn the crankshaft until the piston in the affected cylinder is at Top Dead Center on the compression stroke, working on one cylinder at a time following the firing order. Thread a long adapter into the spark plug hole and connect an air hose from a compressed air source, using a long spark plug adapter with a length of hose attached. Apply compressed air to the cylinder and stuff shop rags into the cylinder head holes around the valves to prevent parts and tools from falling into the engine. Use a valve spring compressor to compress the spring, releasing the valve stem keepers and lifting them out with a magnet or needle-nose pliers. Remove the spring retainer and valve spring, then the valve stem seal. Wrap a rubber band or tape around the top of the valve stem to prevent it from falling into the combustion chamber, then release the air pressure. Inspect the valve stem for damage, ensuring it doesn't bind in the guide; if it does, the cylinder head will need to be removed for repair. Reapply air pressure to retain the valve in the closed position, then remove the tape or rubber band. Lubricate the valve stems with engine oil and install new valve stem seals, using a special tool or a deep socket and hammer to seat them. Install the valve spring over the valve with the more closely-wound coils and paint mark toward the cylinder head, followed by the valve spring retainer. Compress the valve springs and position the keepers in the groove, applying a small dab of grease to hold them in place. Remove the pressure from the spring tool and ensure the keepers are seated, then disconnect the air hose and remove the adapter from the spark plug hole. Reinstall the camshaft and lifters, then the timing chain, followed by the valve covers. Finally, install the spark plug(s), ignition coils, and the upper and lower intake plenum as necessary, start the engine, and check for oil leaks and unusual sounds from the valve cover area.

Take off the cylinder head and lay the head on a vise or any strong table. Utilize a vast clamp type valve spring compressor accompanied by an adapter to crush every valve spring so that lowest portion of the tool must be placed under the certain valve which is being operated and then compress the spring till the keepers are removable by magnet or small pair of pliers. Remove the valve spring together with the retainer pressed to the shank. Pull off the old valve stem oil seal with the help of pliers. V Berkwood et al, Controlling Corrosion Costs in Canada: A Guide, National Corrosion Control Manual this book recommends inspecting the valve and its stem for damage and rotating the valve in the guide to check for any eccentric - this usually indicates a bent valve. Slide the valve to and fro in the guide, if be cannot be done they may be severely fouled or the guide worn, which will require work on the cylinder head. Grease the valve stem with the engine oil and then, before inserting it in the cylinder head, cover it with a new seal with an aid of a plastic seal protector or the cellulose tape to avoid damaging the new seal while it is passing through the keeper grooves. Apply multi-purpose grease on the new seal and fit it over the valve stem while applying a hand force subsequently, the protector or tape should be recovered once the seal has tightened against the guide. Online, using a deep socket of the required measure, you need to gently knock the new seal in the upper part of the valve guide. Place the valve over the spring and ensure the retainer is in place, compress the valve spring and the retainer then put the keepers into the groove and if necessary and the keepers are difficult to put in you can apply some grease. Taking the pressure off the spring tool should guarantee that the keepers are in place. Return the lifters and camshafts back to the original position and perform the following in the exact order they were removed: Crack the throttle and turn on the engine to look for signs of old and fresh oil on the valley area, as well as any abnormal noise coming from the vicinity of the valve cover.

Broken valve springs and defective valve stem seals can be replaced without removing the cylinder heads, typically requiring two special tools and a compressed air source. Begin by removing the valve cover(s) and the camshafts and lifters from the affected cylinder head. Remove the spark plug from the cylinder with the defective component, and if replacing all valve stem seals, remove all spark plugs. Turn the crankshaft until the piston in the affected cylinder is at Top Dead Center on the compression stroke, working on one cylinder at a time following the firing order. Thread a long adapter into the spark plug hole and connect an air hose from a compressed air source, using a long spark plug adapter with a length of hose attached. Apply compressed air to the cylinder and stuff shop rags into the cylinder head holes around the valves to prevent parts and tools from falling into the engine. Use a valve spring compressor to compress the spring, releasing the valve stem keepers and lifting them out with a magnet or needle-nose pliers. Remove the spring retainer and valve spring, then the valve stem seal. Wrap a rubber band or tape around the top of the valve stem to prevent it from falling into the combustion chamber, then release the air pressure. Inspect the valve stem for damage, ensuring it doesn't bind in the guide; if it does, the cylinder head will need to be removed for repair. Reapply air pressure to retain the valve in the closed position, then remove the tape or rubber band. Lubricate the valve stems with engine oil and install new valve stem seals, using a special tool or a deep socket and hammer to seat them. Install the valve spring over the valve with the more closely-wound coils and paint mark toward the cylinder head, followed by the valve spring retainer. Compress the valve springs and position the keepers in the groove, applying a small dab of grease to hold them in place. Remove the pressure from the spring tool and ensure the keepers are seated, then disconnect the air hose and remove the adapter from the spark plug hole. Reinstall the camshaft and lifters, then the timing chain, followed by the valve covers. Finally, install the spark plug(s), ignition coils, and the upper and lower intake plenum as necessary, start the engine, and check for oil leaks and unusual sounds from the valve cover area.

Lubricate the valve stems with engine oil and install new valve stem seals, which can be installed with a special tool or a deep socket and hammer-tapped until seated.

A valve spring compressor is used to compress the spring.

Reinstall the lifters and camshafts, and complete the installation in reverse order of removal.

Hello. This part is sold separately. You would need to order 16.