What causes the crankshaft to shuffle on a Boxster engine?
It also may be caused by the fact that the crankshaft carrier support is only pinned minimally in one plane to the outer case. This can lead to shuffling of the carrier: shuffle pinning the crankshaft carrier as is commonly done when prepping an early 911 engine for the track can help the problem.
What causes a Porsche Boxster engine to leak?
On the early cars, Porsche also used a center bolt to secure the IMS bearing that was too weak and sometimes snapped. If this bolt breaks, then the intermediate shaft begins to float around in the bottom of the engine, and you can soon experience catastrophic engine failure. This area is also highly prone to leaks.
Why does my engine make a knocking sound?
What is Engine Knocking. The knocking sound often occurs when the air-fuel mixture is incorrect, which causes the fuel to burn in uneven pockets rather than uniform bursts. Left untreated, it can cause damage to the piston and cylinder wall. A knocking sound can also be caused by a lack of lubrication in the upper cylinder head area.
Why did Porsche move away from the M96 engine?
With the introduction of the M96 engine, Porsche moved away from that design, primarily due to the high cost of implementing a separate dry sump system.
On the early cars, Porsche also used a center bolt to secure the IMS bearing that was too weak and sometimes snapped. If this bolt breaks, then the intermediate shaft begins to float around in the bottom of the engine, and you can soon experience catastrophic engine failure. This area is also highly prone to leaks.
What kind of engine does a Boxster 2.5 have?
The problem affects mostly the 2.5 and Carrera 3.4 engines: the 3.2 Boxster S engine appears to be unaffected because it has thicker cylinder walls than the 3.4 engine. When this failure happens, you will see oil and coolant begin to mix together, or a slight unexplained coolant loss.
It also may be caused by the fact that the crankshaft carrier support is only pinned minimally in one plane to the outer case. This can lead to shuffling of the carrier: shuffle pinning the crankshaft carrier as is commonly done when prepping an early 911 engine for the track can help the problem.
With the introduction of the M96 engine, Porsche moved away from that design, primarily due to the high cost of implementing a separate dry sump system.