986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Engine change problem. Water pump impeller chewed up....Where's the pieces?

Jake Raby · 01-04-2011, 07:03 AM

Debris generally doesn't accumulate in water jackets.. What kills the bottom end is intermix.

Most debris ends up in the heat exchanger, internal passages and the 4-6 cylinder head.

The year of the engine has a huge impact on what the capillaries in the heads accumulate.

The pieces that cause the most damage are smaller than a pencil eraser, the big chunks can't make it into the cylinder heads at all.. The smaller the pieces the deeper they can go.

01-04-2011, 07:03 AM	#28
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	Debris generally doesn't accumulate in water jackets.. What kills the bottom end is intermix. Most debris ends up in the heat exchanger, internal passages and the 4-6 cylinder head. The year of the engine has a huge impact on what the capillaries in the heads accumulate. The pieces that cause the most damage are smaller than a pencil eraser, the big chunks can't make it into the cylinder heads at all.. The smaller the pieces the deeper they can go. __________________ Jake Raby/www.flat6innovations.com IMS Solution/ Faultless Tool Inventor US Patent 8,992,089 & US Patent 9,416,697 Developer of The IMS Retrofit Procedure- M96/ M97 Specialist