Cylinder identification
The following identifiers are stamped on the side opposite to the mounting casting knock sensor bridge Cylinder diameter tolerance group, e.g. group 0 and cylinder height tolerance group e.g. height s Each cylinder height tolerance group 5 or 6 is subdivided further into the cylinder diameter tolerance group. Only cylinders belonging to the same height group 5 or 6 may be fitted on one and the same cylinder bank. 911 Carrera 4 Engine, Crankshaft, Pistons Installing Piston Pin Circlips with...
Dismantling and assembling pistons and cylinders
Always replace with new parts, fit dry Always replace with new parts, check for correct seating, use Special Tool 9500 Must remain allocated to the corresponding piston. Do not mix with parts from another cylinder, even within the same engine. When dismantling and assembling the engine, observe this procedure and mark parts accordingly. Observe inside dia., use suitable thrust pin Always replace with new parts, check for corr. seating, use Sp. Tool 9500 Double-bevelled oil control ring, groove...
Weights as per DIN 70020
max. rear axle load kg lbs max. roof load 600 1322 850 1872 1450 3194 1790 3943 760 1674 1050 2313 75 165 with original Porsche roof transport system
Adjusting the timing
4. Mount the auxiliary chain tensioner, Special Tool 9401. Illustration shows left-hand side of the auxiliary chain tensioner 1. Turn the crankshaft until the marking on the pulley is exactly aligned with the seam of the crankcase or with the locating mark on the blower housing. 4. Mount the auxiliary chain tensioner, Special Tool 9401. Illustration shows left-hand side of the auxiliary chain tensioner 2. Position both camshafts with the punched marking pointing upwards. If this mark has not...
Determining engine speed sender clearance Tiptronic vehicles
The following spare parts and tools are req. for the Determining engine speed sender clearance operation
Sealing the crankcase mating sections
Loctite 574 hardens only when contact with metal is made and air ingress is prevented. After having applied the sealant, bolt up the crankcase sections within approx. 10 minutes since the sealant bead applied directly to the metal surface will otherwise start to cure. In case of repairs, the old sealant coat must not necessarily be removed. It is sufficient to de-grease the surface and apply the new coat of sealant after the solvent has evaporated. New Loctite will soften the old sealant...
Disassembling and Assembling Crankcase Tools
Bolt crankshaft on holding plate with multiple-tooth socket bolts, Part No. 928 102 152 01. 911 Carrera 4 Engine, Crankshaft, Pistons Pressing tool for seal flywheel end Carrera 4 Table Of Contents Carrera 2 Addendum Main Menu 13 Engine, Crankshaft, Pistons 911 Carrera 4
DME control units
approx. Oct. '89 approx. Feb. '90 approx. March '90 RoW, while stocks last control units except M114 M 114 , RS M 114 , RS USA up to MY '91 964.618.124.02 RoW 964.618.124.03 M 114, 911 Carrera RS 964.618.124.04
Disassembling and Assembling Camshaft Housing Cylinder Head Tools
Disassembling and Assembling Camshaft Housing, Cylinder Head Screwdriver socket for multi-tooth nuts Standard, Stahlwille 73 Nm V 3 and 49-5 Wrench socket for temperature sensor II in calinderhead cyl. 3 Pressure pad for pressing in valve stem seals Dis. and assembling cylinder head, camshaft housing
Carrera 4Engine Crankcase Suspension
Primary muffler catalytic converter - intermediate muffler spherical clip Intermediate muffler -final muffler spherical clip Restraining strap to intermediate muffler Cap nut on the fuel distribution line Primary flywheel to secondary flywheel 911 Carrera 4 Enginge, Crankcase, Suspension The engine transmission assembly is removed 1. Raise the vehicle at the jacking points. Adjust the right-hand rear jacking point in such a way that the transmission guard can 2. Disconnect the battery ground...
Injection system components Removing and install lower DME section
911 Carrera 4 Fuel system, Electronic injection
Fuel system
1010 l sec at 6100 rpm of the crankshaft Dry sump lubrication with isolated oil reservoir Thermostatically controlled, front oil cooler in the front right-hand fender, 2-stage electric blower approx. 5.0 bar at 90 degrees oil temperature 0-5 bar electric and oil pressure warning lamp Up to 1.5 I 1000 km Single-branch system joined together outside the heat exchanger, 3-way catalytic converter with closed-loop Lambda control, intermediate and final mufflers, partial encapsulation of the engine...