ACL RACE Tri-Metal Big End Bearings RENAULT Super 5 GT Turbo 1.4 8V C1J

The tri-metal big end bearing sets ACL RACE for the C1J engines contain 8 bearing shells.

Below (click on the image) you will find the tri-metal main bearings for the RENAULT C1J 782, C1J 784 and C1J 788 engines and the plastigage strips used to check the bearing / crankshaft running clearance:

Technical specification

• Size(s): standard, standard with HX clearance, +0.025 or +0.25mm
• Anti-friction coating: none
• References: 4B7906, 4B7906H-STD, 4B7906HX-STD, 4B7906H-.025, 4B7906H-.25

ACL Race Series tri-metal bearings are made to tight tolerances. CNC machining works to the micron, followed by metrology checks on the diameter, thickness and width of the ACL Race Series tri-metal bearing. The ACL Race Series bearings therefore give a reliable and consistent fit in your performance engine. The ACL Race Series tri-metal bearings are in fact made up of 4 layers:

• SAE1010 steel on the outside
• 0.3mm copper alloy
• 0.0001mm nickel
• Copper alloy from 0.013 to 0.018mm

This choice of materials, combined with the manufacturing processes, makes the ACL Race Series tri-metal bearings more resistant to increases in power, torque and engine speed. The compressive strength of the ACL Race Series tri-metal bearings brings reliability to your engine even with heavily boosted turbo or supercharger builds, or highly strung engines running high revs.