Name: ACL Toyota 4 2977-3431cc 1984-88 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-toyota-4-2977-3431cc-1984-88-engine-crankshaft-main-bearing-set-t14-632953
Price: 11.92 USD
Availability: BackOrder

Question 1

How do I know if my main bearings need replacing?

Accepted Answer

Common signs of worn main bearings include a low-frequency knocking sound from the engine, especially under load. You might also notice a drop in oil pressure. If you're already rebuilding the engine, it's always a good idea to replace the bearings as preventative maintenance.

Question 2

What else should I replace when replacing the main bearings?

Accepted Answer

When replacing your main bearings, it's best practice to also inspect and/or replace the connecting rod bearings at the same time. Also inspect the crankshaft for wear or damage. Refer to the manufacturer's service manual for torque specifications and any specific installation instructions.

Question 3

Are these standard size or undersized bearings?

Accepted Answer

This ACL 5M8283-.75 Main Bearing Set is 0.75mm undersize. This means the crankshaft journal has been machined smaller, and these bearings compensate for the material removed.

Specifications

ACL Toyota 4 2977-3431cc 1984-88 Engine Crankshaft Main Bearing Set

Key Features

Specifications

Frequently Asked Questions

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