S54 Connecting Rod Bearings

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S54 connecting rod bearings.

We have seen these types of failures in a wide variety of engines from subaru ejs to newer bmw s63s. Connecting rod bearing failure is catastrophic on any engine and will typically leave the vehicle in need of a complete replacement engine. The wrist pins connecting the pistons to the connecting rods are lubricated by oil splashing around. For the s54 this is the rod bearing.

The mighty and powerful bmw s54 has an achilles heel it s rod bearings. Available in standard size and std x with additional oil clearance as well as 0 025mm and 0 25mm oversizes. But the problem is much more likely to happen in the s54 s65 and s85 for a few specific reasons. The xp series is a line of bearings with advanced metallurgical and geometric technologies that meet extreme performance loads.

For another engine it might be the rod or the cylinder wall or something else. Our s54 treated rod bearing upgrade kit for late model engines 02 03 is the ideal solution for one of the only drawbacks of the legendary s54 motor. King engine bearings was founded in 1960 with one simple objective. While our s54 rod bearing widening solution is a great way to save engines that have already spun a bearing we believe the s54 engine will run a long time on stock bearings if the proper maintenance is performed.

As great and powerful as bmw made the s54 engine they left it lacking in a critical area it s rod bearing reliability. First time at circuit of the americas also first dry session. For s54 s there s also a spray of oil into the bottom of the piston for cooling. Car exhibited no signs of bearing wear before the event had good oil.

2005 e46 m3 98k miles. King racing xp series big end connecting rod bearings for the bmw s54b32 engine. Oil changes at low intervals along with replacing rod bearings pre preemptively will lead to a long living engine. To supply the highest quality bearings available in the marketplace.

Detailed service action repair instructions can be found on the cd rom sip s54 connecting rod bearings replacement which was included in the oil pump kit with connecting rod bearings p n 11 41 0 301 359 used for the previous m3 engine campaign 356 si b11 02 03. Pressurized oil flows up to the connecting rod bearings from the main bearings. By specializing in engine bearings king has built an extensive product offering that includes a wide range of engine bearings for automobiles light duty and heavy duty trucks marine aviation standby power. Whether its a design failure or intentional the s54 has a very well documented history of consuming rod bearings at a rate faster than desired.