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Genuine Mazda Protege Crankshaft
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4 Crankshafts found
Mazda Protege Crankshaft Part Number: FP01-11-300C
$643.23 MSRP: $878.91You Save: $235.68 (27%)Ships in 1-2 Business DaysMazda Protege Crankshaft Part Number: B61K-11-300B
Mazda Protege Crankshaft Part Number: BP06-11-300D
Mazda Protege Crankshaft Part Number: FS01-11-300D
Mazda Protege Crankshaft
The Mazda Protege Crankshaft is the highly critical component converting the straight-line movement of the pistons into rotational force, which eventually reaches the wheels. This heavy Mazda Crankshaft sits in the engine block; it has offset crank throws where the connecting rods are attached so that the up and down motion of the pistons can be converted into a smooth rotation of the transmission gears, axle shafts and tires. Two major construction styles have emerged over the years, one selected to suit the engine output and the other. Editions with low power are made of cast iron, which is an inexpensive metal that manages normal stress but reduces cost. Higher horsepower tuned engines use forged steel, which is more resistant to the increased twisting forces produced at higher RPMs, thanks to its tighter grain. Even though the machining that goes on in the factory ensures that every surface is accurate, the component also needs clean and pressurized oil to survive. Unchanged oil may allow grit to creep into the journal bearings or cause them to be starved of lubrication, resulting in scored surfaces, increased clearances, metal-on-metal knock and observable vibrations, which give warning to the driver that an overhaul may be imminent. Regular servicing, though, will allow the Crankshaft of any Mazda to run as long as the automobile, and this is why regular servicing is just as important as the intelligent design. Owners of the second-generation Protege may rely on the same principles regardless of the material in which the Mazda engine is made.
Looking for Crankshaft with proven quality? Choose OEM Crankshaft. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda Protege parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine Protege part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.
Mazda Protege Crankshaft Parts and Q&A
- Q: Is crankshaft installation the first major step in engine reassembly on Mazda Protege?A:Crankshaft installation is the first major step in engine reassembly, assuming the engine block and crankshaft have been cleaned, inspected, and repaired. Position the engine with the bottom facing up, then remove the main bearing cap bolts and lift out the caps, laying them out in the proper order. If old bearing inserts are still in place, remove them from the block and caps, and wipe the main bearing surfaces with a clean, lint-free cloth to ensure cleanliness. Clean the back sides of the new main bearing inserts and place one half with the oil groove in each main bearing saddle in the block, while the other half goes in the corresponding main bearing cap, ensuring proper alignment of tabs and oil holes. Install thrust bearings in the number four cap and saddle, then clean the bearing faces and crankshaft main bearing journals. Once the crankshaft is clean, lay it in position in the main bearings and check the main bearing oil clearance using Plastigage, ensuring it is trimmed to the appropriate size and placed parallel to the journal axis. After installing the caps in their respective positions without disturbing the Plastigage, apply a light coat of oil to the bolt threads and undersides of the bolt heads before tightening the main bearing cap bolts in the recommended sequence. Remove the bolts and carefully lift off the main bearing caps to compare the width of the crushed Plastigage to the scale on the envelope for clearance measurement. If the clearance is not as specified, check for dirt or oil interference before concluding that different inserts are needed. Carefully scrape off any traces of Plastigage material, then lift the crankshaft out, clean the bearing faces in the block, and apply a thin layer of clean moly-base grease or engine assembly lube to each bearing surface, including the thrust washers. Lubricate the crankshaft surfaces that contact the oil seals, then lay the crankshaft back in place, clean the bearing faces in the caps, and apply lubricant before installing the caps with arrows pointing toward the front of the engine. Ensure the thrust washers are correctly positioned, apply a light coat of oil to the bolt threads and undersides of the bolt heads, and tighten all main bearing cap bolts to the specified torque. Rotate the crankshaft by hand to check for binding, then check the crankshaft end play with a feeler gauge or dial indicator, ensuring it is correct if the thrust faces are not worn and new thrust washers are installed. Finally, install a new rear main oil seal and bolt the retainer to the block.
- Q: How should the crankshaft be cleaned and inspected for damage on Mazda Protege?A:Clean the crankshaft using solvent and dry it using compressed air where possible and inspect the main and connecting rod bearing journals on their uneven wear, scoring, pits, and cracks. Take the burrs out of the crankshaft oil holes with a stone, file or scraper and clean the oil holes with a stiff brush before flushing them with solvent. Check the remainder of the crankshaft, checking cracks and other damage, with magnafluxing, which may indicate the presence of cracks concealed in the crankshaft, and the automotive machine shop can deal with them. Measure the diameter of the main and connecting rod journals using a micrometer and compare the values to identify taper and out of round conditions by measuring at various points around the circumference of each journal including both ends towards the crank throws. Check crankshaft run out with large V-blocks and a dial indicator; in absence of the equipment, request a machine shop to check it. When the crankshaft journals are damaged, tapered, out of round or worn to exceed the specified limits, either remanufacture by regrounding the crankshaft with an automotive machine shop, and be sure that as long as it is reconditioned the correct size bearing inserts are used. Check the oil seal journals that are at each end of crankshaft to wear and damage because it may leak when there is the groove, nicks, or scratches, which can be repaired by using a thin sleeve by an automotive machine shop, however, when it is not possible to repair, one can buy a new or different crankshaft. Lastly, check on the main and rod bearing inserts.
