Plastigauge
The best tools for measuring oil clearance on crankshaft bearings are typically a micrometer and a dial indicator. A micrometer is used to measure the thickness of the bearing shell and the journal, while a dial indicator can help check for any runout or irregularities. Additionally, plastigage can be used as a quick and effective method to measure oil clearance by providing a visual indicator of the gap between the bearing and journal.
I believe the clearance should be within .002 and .007 thousands of an inch. and also the end play clearance, should be between .002 and .007. you should check the bearing caps with plastic gauge, and the end play wiyh a feeler gauge.
For a complete guide on checking tilting pad clearance in journal bearing visit johncraneorion.com/literature/catalogs/catalog.pdf
The bearing clearance in an Ideco E2100 drawworks typically ranges from 0.001 to 0.003 inches, depending on specific operational conditions and maintenance practices. This clearance is crucial for ensuring proper lubrication and minimizing wear on the bearings during operation. It's essential to regularly check and maintain this clearance to ensure optimal performance and longevity of the equipment. Always refer to the manufacturer's specifications for the most accurate information.
You get it out, clean it, check that it's straight, magnaflux it for cracks, clear out the oil channels. If needed, grind down the bearing surfaces to the next standard dimension.
You can check the valve clearance with a valve clearance guide. Slide the guide between the valve. The guide will register the clearance.
Check for proper bearing clearance. It is easy to get the wrong size bearings.
More than likely a worn out thrust bearing. Check your engine against specs.
To adjust the valve clearance on a Daewoo Racer, first ensure the engine is cool and remove the valve cover. Rotate the crankshaft to set the engine to the top dead center (TDC) on the compression stroke for the cylinder you are adjusting. Use a feeler gauge to measure the clearance between the rocker arm and the valve stem, and if necessary, loosen the lock nut and adjust the screw to achieve the specified clearance. Finally, re-tighten the lock nut, double-check the clearance, and reassemble the valve cover.
You could take the crankshaft out of the engine with the engine still in the car, but it would be a lot more work, and make it much more difficult to keep the bearing surfaces clean. Also, the transmission would still have to be disconnected from the engine so you could gain access to the back of the crankshaft. While it CAN be done, it's not generally accepted practice. It's conceivable that you could disconnect the torque converter (assuming it's an automatic transmission), remove the rod bearing caps, taking care to keep them with the same rod bearing and also keeping them oriented to go back on the same way they came off. Then pull the dampener pulley from the front of the crankshaft. Then remove the front timing chain cover and pull the timing chain, then you can theoretically pull the main bearing caps (again, keep them oriented right to left and keep each cap in the same position) and drop the crankshaft. The problem is, this doesn't allow you to check the cylinders for taper or to check the rod bearings for out of round. If your engine has enough of a problem that you need to drop the crankshaft, you should probably inspect other parts too.
Check to see if the wiring is damaged.
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