Asked by: Maida Villiam
asked in category: General Last Updated: 7th April, 2020

How is camshaft bearing clearance measured?

Measure the inner diameter -A- of the camshaft bearing with a dial indicator. If clearance exceeds the limit, replace the camshaft and/or cylinder head. The camshaft journal clearance specification should be 0.0018-0.0034 inch (0.045-0.086 mm for No. 1 and 0.0014-0.0030 inch (0.035-0.076 mm for NO.

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Keeping this in consideration, how do you measure bottom end bearing clearance?

To check the bottom end bearing clearance. Turn the engine to BDC. Isolate the turning gear. Measure the clearance using feelers from within the crankcase.

Furthermore, how do you measure the size of a bearing? You can measure the dimensions of a bearing by using a vernier caliper like the one below or measuring accurately with a ruler. All bearings will have an inner diameter (ID), an outside diameter (OD) and width (W). Bearings are sometimes referenced by these dimensions, in that order: ID x OD x W.

In respect to this, how do you measure clearance with Plastigage?

Open the paper to remove the plastigage, and place the plastigage across the surface of crankshaft. Position the plastigage in the center of the journal surface. Install the bearing cap and torque the bolts to specification. Remove the bolts and the bearing cap.

What would happen if main bearing clearance is too loose?

Too little clearance and you'll have trouble keeping your oil temperatures in check, and a spun bearing is much more likely. On the other hand, if the tolerance is too loose you hemorrhage oil out from around all the bearings.

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