Name: ACL Nissan 4 1189-1299cc 1970-72 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-nissan-4-1189-1299cc-1970-72-engine-crankshaft-main-bearing-set-t14-631753
Price: 14.64 USD
Availability: BackOrder

Question 1

When should I replace my main bearings?

Accepted Answer

Main bearings should be replaced during an engine rebuild or when you notice signs of wear, such as excessive engine noise or low oil pressure. Replacing them ensures proper crankshaft support and oil clearance, preventing potential engine damage.

Question 2

What happens if my main bearings fail?

Accepted Answer

If your main bearings fail, it can lead to significant engine damage, including crankshaft damage, rod knock, and even complete engine failure. Regular inspection and replacement of worn bearings are essential to prevent these issues.

Question 3

Are these standard size or undersized bearings?

Accepted Answer

This ACL 3M2637-010 bearing set is 0.010 inch undersize. This means the bearing has a slightly smaller inside diameter to compensate for a crankshaft that has been ground down during a rebuild.

Specifications

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

Key Features

Specifications

Frequently Asked Questions

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