How do I know if my IMS bearing is bad?

How do I know if my IMS bearing is bad?

The most obvious one would be knocking or grinding sounds coming from your motor. If you are experiencing this, your Porsche may be in IMS bearing failure. Other signs include oil leaks or oils with metallic shards in the oil filter, signs that something has broken off inside of your car.

When should I change my IMS bearing?

Depending on which bearing is used, the recommended service interval varies by time and mileage, whichever comes first: Classic Single Row IMS Retrofit (which was superseded by the Single Row Pro) – 4 years or 50,000 miles. Single Row Pro and Classic Dual Row IMS Retrofit – 6 years or 75,000 miles.

Which Porsche models have IMS bearing issues?

Since it has also been verifiably documented that some IMS bearings have failed after just 3,000 miles, while others still have lasted for 200,000 miles or more, the only safe conclusion that can be drawn is that all M96 and some M97 engines in Porsche 911’s (996 or 997), and all Boxsters (986/987) from 1997 through …

What does a failing IMS bearing sound like?

A Later Diagnosis for Porsche IMS Bearing Failure While we would hope that it wouldn’t come to this, if the IMS bearing failure has progressed significantly, you will likely hear loud rattling noises when starting the engine or pressing the accelerator.

How much does it cost to replace a 996 IMS bearing?

I’ve been shopping for a 996 2000-2003 and alot of people and mechanics have told me about the IMS bearing. The cost to replace it with an aftermarket ceramic bearing runs between $1700 – $2500.

How much does it cost to replace Porsche 996 IMS bearing?

The cost of a IMS Retrofit replacement bearing and labour for installation is usually more than $4,000 but can be done in conjunction with the clutch. This is a small investment compared to the cost of rebuilding or replacing the entire engine.

When did Porsche fix the IMS bearing issue?

Porsche came out with their own IMS bearing replacement in 2017 using a sealed ceramic hybrid ball bearing like the IMS Retrofit, which was almost a decade after LN Engineering released the IMS Retrofit in 2008.

Which Porsche has IMS bearing issues?

Which Porsche models can IMS bearing failure occur on? Boxsters, Caymans and 911s from MY1997 to MY2008 are all at risk of IMS bearing failure, with the exception of Turbo, GT2 and GT3 models. However, the type of bearings used changed over the period and some were more prone to failure than others.

What happens when IMS bearing fails?

In the worst-case scenario, IMS bearing failure can disrupt the cam timing causing impact between the pistons and valves, resulting in shattered valves, smashed pistons, and other extensive engine damage.

How much does it cost to fix a Porsche IMS bearing?

What causes bore scoring Porsche?

A lack of cylinder & piston lubrication is the major cause of wear or bore scoring. The minimum grade gasoline for all street production Porsches is 91 octane.