Name: ACL Nissan 4 1189-1299cc 1970-72 Engine Crankshaft Main Bearing Set
Brand: ACL
Price: 9.24 USD
Availability: InStock

Question 1

What happens if I don't replace worn crankshaft bearings?

Accepted Answer

Worn crankshaft bearings cause a loss of oil pressure, which can lead to engine knock and eventual engine failure. Replacing your crankshaft bearings at the first sign of wear can prevent serious damage.

Question 2

How do I know if my crankshaft bearings are worn?

Accepted Answer

Common signs of worn crankshaft bearings include low oil pressure, a knocking sound coming from the engine, and metallic debris in the oil. If you notice any of these symptoms, it's time to inspect your bearings.

Question 3

Are these bearings standard size, or are they undersized/oversized?

Accepted Answer

This ACL bearing set is 0.25mm (0.010 inch) undersize. This means the crankshaft journals must be machined to match the smaller diameter. Always consult a machinist before installing undersized bearings.

Specifications

ACL Nissan 4 1189-1299cc 1970-72 Engine Crankshaft Main Bearing Set

Key Features

Specifications

Frequently Asked Questions

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