mavennax.blogg.se - Porsche 911 engine assembly guide

Install and tighten oil drain plug using new sealing ring. Mount right side crankcase half on engine stand. Install new connecting rod nuts on all rod bolts. Matching numbers on side of connecting rod and rod cap should all be facing same side of engine (i.e., all numbers face exhaust side of engine). ^ Install connecting rods on crankshaft in their original locations.

With shoulder on gear facing in (arrow), slide drive gear fully onto crankshaft.

Mount crankshaft to Porsche special tool P 209 or equivalent and clamp tool with crankshaft in shop vise. See 130 Crankcase and Crankshaft for checking and replacing.

If gear is worn or damaged, replacement gear must be matched to crankcase and to gear on intermediate shaft. Install distributor drive gear with marks on face of gear facing pulley end of crankshaft.Ĭrankshaft reconditioning information is given in 130 Crank-case and Crankshaft.Ĭheck crankshaft drive gear for wear prior to installation. Use protective gloves or shop rag when handling the hot gear. Install connecting rod bearing shells in connecting rods. Install new connecting rod bolts in each connecting rod. Select circlip to best obtain near zero clearance.Circlip used to hold gears in place on crankshaft comes in different thicknesses.Install gear retaining circlip to crankshaft. Drive gear (for distributor) mark 0 or 1) Install distributor drive gear to crankshaft.ģ. ♦ Camshaft cases, camshafts and camshaft timing chains, installing The assembly procedure is divided into subsections, as follows: Cylinder position will be referred to during the assembly process. See 130 Crankshaft and Crankcase.Ĭylinder numbering is shown in illustration. ♦ If either the crankcase, the crankshaft drive gear or the intermediate shaft drive gear are replaced, special installation instructions apply. Always check with an authorized Porsche parts department for the latest in parts information. ♦ Various head studs have been used on the Carrera 911 engines. Refer to 130 Crankcase and Crankshaft and 170 Engine Lubrication. If the engine is disassembled because of bearing failure, a thorough flushing of the lubrication system must be carried out prior to reassembly.If the engine failed mechanically, it is important to check the intake system for foreign objects.Use suitable engine assembling lubricant during assembly. All machine work should be completed and all new replacement parts should be on hand. All parts must be clean and ready for reassembly at this point.