![]() Add a Vehicle Tap image to zoom Tap image to zoom SA Gear Crankshaft Timing Gear S-371 Shop All Duralast Duralast147595 Part S-395 1-Year Warranty Checkif this fits your vehicle. Honda recommends pulling it off and replacing it if if gets worn or damaged, so they couldn't have put a timing mark on it in the factory in case the owner later removed the gear and replaced it, in no particular position. Auto PartsInternal EngineCrankshaft and CamshaftCrankshaft Timing Gear First, Add Your Vehicle Get an exact fit for your vehicle. The line will be about the width of a tooth on the gear and have a ground finish. In case you care, the reason there is no mark on the steel crankshaft gear, is that it isn't keyed to the crankshaft, it is just pressed on. The gear is in the right position when the timing dot is lined up with the line cast into the counter weight. I prefer to use a pair of timing marks, and that is why I make one before taking the camshaft out, but it isn't actually necessary, and isn't recommended by Honda. Of course you have to allow for the spiral gears, so you enter the teeth nearly 1 tooth anti-clockwise from where you want it to end up. "My system for getting by without a timing mark on the crankshaft timing gear, is I put the crankshaft on TDC, then insert the camshaft so that its timing mark is at the closest point of approach to the crankshaft. Having done this I can tell you that it's quite tight.Click to expand.Here's an authoritative discussion I found online (grumpy on ) of the reasoning behind Honda not putting timing marks on some crankshaft gears and a method for timing that doesn't rely on crankshaft gear markings: As I recall it's something like 120 ft-lbs. Honda Accord Crankshaft Timing Gear Honda Civic Crankshaft Timing Gear Ford F150 Crankshaft Timing Gear Chevrolet Silverado 1500 Crankshaft Timing Gear Toyota Camry Crankshaft Timing Gear Nissan/Datsun Altima Crankshaft Timing Gear Dodge Ram 1500 Crankshaft Timing Gear Toyota Corolla Crankshaft Timing Gear Chevrolet Cruze Crankshaft. In the specific case of the Mini R56, the torque on the crank bolt is significant so that this doesn't happen. In some engine designs the crank timing gear is unkeyed and it CAN, under the right circumstances, move and change the engine's timing. Other Name: Crankshaft Gear Timing Gear, Timing Gear Set, Timing Pulley Replaces: 13620-PNA-000, 13620-RAA-A01. Align the key and key way on the crank gear with the key way on the crankshaft. You remove the crank bolt and pull out the bushing, then after unbolting the guides you can lift the entire assembly out the top of the engine. Shop for the best Timing Gear/Sprocket for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts. Installing the Crankshaft Timing Gear Tools Needed: Hammer, 22 X 19 mm open end wrench, block of wood, 12 mm socket and ratchet wrench, wood chisel and tommy bar. The advantage to this setup, though, is that you can much more easily change the timing chain from the top. Today, with engines now regularly achieving over 1000hp. ![]() If the bolt is not tight enough the gear will slip and that's a big problem. The original Nissan RB OEM Crank Timing Pulley was designed at a time when 500hp was big power. There are no keyways or splines on this and it's held in place by pressure between the end of the crankshaft and a bushing that is attached by the crank pulley bolt. Note the red arrow pointing to the timing gear. ![]() I do know that some engines are designed so that the crank timing gear is held in place with friction. ![]() ![]() I'm not sure I am in agreement with "most" in the other answer, some definitely but I've never seen any stats on this. ![]()
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