{"product_id":"21663836-shim-genuine-volvo-penta","title":"21663836 Shim | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n A selective spacer-ring shim used during D6 and D7 cylinder-liner service to establish the specified liner protrusion above the cylinder-block deck.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Nominal selection: 2.335-2.350mm\n \u003c\/li\u003e\n \u003cli\u003e\n  Cylinder-liner protrusion adjustment\n \u003c\/li\u003e\n \u003cli\u003e\n  Precision-ground hardened steel\n \u003c\/li\u003e\n \u003cli\u003e\n  Selected only after liner-height measurement\n \u003c\/li\u003e\n \u003cli\u003e\n  Used during cylinder-block and liner repair\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n The shim raises the cylinder liner by a controlled amount so the head gasket is clamped correctly and combustion pressure remains sealed.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Incorrect liner protrusion\n \u003c\/li\u003e\n \u003cli\u003e\n  Repeated cylinder-head gasket failure\n \u003c\/li\u003e\n \u003cli\u003e\n  Coolant pressurisation\n \u003c\/li\u003e\n \u003cli\u003e\n  Shim compressed, corroded or damaged during removal\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🛠️ Service Notes\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Shims are supplied in graded thicknesses and exist to bring a setting into specification, so measure with a micrometer and select the thickness the setting procedure for your engine calls for rather than matching one by eye\n \u003c\/li\u003e\n \u003cli\u003e\n  Note which shim came from which position on removal and keep them identified — once an assembly has bedded in, shims are not interchangeable between positions\n \u003c\/li\u003e\n \u003cli\u003e\n  Check both faces are clean, flat and free of burrs, corrosion and old sealant before fitting; dirt trapped under a shim shifts the setting as surely as the wrong thickness does\n \u003c\/li\u003e\n \u003cli\u003e\n  Discard any shim that is dished, cracked, pitted or fretted rather than reusing it, and make sure no old shim has been left behind in the recess\n \u003c\/li\u003e\n \u003cli\u003e\n  Recheck the clearance or setting after the assembly is tightened down, because clamping load can change the measurement you took loose\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/h2\u003e\n\u003ch3\u003e\n OEM \/ Related Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  21663836-21663840 - Selective spacer-ring shim family\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 📦 Condition\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta part\n \u003c\/li\u003e\n \u003cli\u003e\n  Brand new\n \u003c\/li\u003e\n \u003cli\u003e\n  Supplied in original or equivalent packaging\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53384310260004,"sku":"X880517","price":88.02,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_5af0eeff-2b48-4be5-ade0-716528d599a0.jpg?v=1788058672","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21663836-shim-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}