Engine - Ticking/Knocking Noises

Technical Information

Boxster (987)

3/06 ENU 1349

Noise From The Engine At Speeds Of Between 2200 And 3000 RPM

Vehicle Type:
Boxster (987)

Model Year:
2005

Equipment:
2.7 I engine (M96.25)

Concerns:
Crankshaft bearing housing

Situation:
Noise from the engine (rattling, clicking, knocking) at speeds of between 2200 and 3000 rpm.

Upon inspection of complete engines replaced under warranty, it has been determined that they are being replaced unnecessarily because of the above-mentioned engine noises.

The noise is caused by the crankshaft bearing housing.

As of March 29, 2005, a crankshaft bearing housing with thrust blocks made of nodular cast iron is installed on all 2.71 engines from model year 05.

Date of Introduction:
March 29, 2005 as of engine no. M9625 61 506314

Action Required:
If customer complaints are received regarding the above-mentioned noises on an engine manufactured before the specified date of introduction, the crankshaft bearing housing must be replaced instead of replacing the complete engine.

Parts Info:
996.101.007.07 --> Bearing housing (with steel inserts)

References:
--> Workshop Manual '134937 Disassembling and assembling bearing housing with crankshaft





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