Checking And Adjusting Parking Brake

Parking brake must be adjusted if brake lever can be pulled up by more than 4 teeth (of a total of 6 with average force. 5. Pull parking brake lever up 2 teeth and turn adjusting nut until wheels can still be rotated by hand (at 4 teeth brake disc must be locked). 1. Jack up car and remove rear wheels. 2. Release parking brake and press rear disc brake pads back until brake disc can be turned easily. 3. Loosen adjusting nut on clamp far enough, that cable is without tension. 4. Turn adjuster...

How Tight Shoud The Power Seteering Belt Be Porsche 928

The following must be performed at each inspection. 1. Check power steering pump v-belt (see page 4). 2. Check steering system for leaks (visual inspection). 3. Check fluid level in reservoir. Fluid AT F DEXRON. Checking V-belt tension (see page 4). Checking Steering System for Leaks 1. With engine running, turn steering wheel to lock and hold. This produces maximum pressure in hydraulic lines. 2. Check all line connections for leaks in this position and tighten if necessary. Checking Fluid...

Adjusting Idle Speed And Co

3, Detach hose al diveftor valve and block hose with suitable plug. 6. Connect CO tester and separate tachometer according to instructions of manufacturer. 6. Connect CO tester and separate tachometer according to instructions of manufacturer. 4. Install filter upper section and attach air intake hose. 5. Run engine to operating temperature (80 to 90 C - 176 to 194 F oil temperature). Use Special Tool 9122 (US 8025).

Suspension Height Adjustment

Porsche 911 Torsion Bar Spline

The suspension height must be checked and Note corrected before aligning the wheels. 1. Measure distance from ground surface to center of wheel. Measuring point on control arm mount must be 113 10 mm below center of wheel. This height is deterrninded by the coil springs and cannot be changed. Rear suspension height must be matched to front suspension height. 1. Measure distance from ground surface to center of wheel. 2. Measure distance from ground surface to measuring point on control arm...

Replacing Spark Plugs

Undo rubber fasteners on filter lower section and remove filter element. 3. Detach vent hose, and pull out flame screen. 4, Loosen and remove hold down bolt for tower filter housing. Loosen side mounting bolts and remove lower housing to the right. 5. Unscrew spark plugs with standard socket. 5. Unscrew spark plugs with standard socket.

Checking And Adjusting Toothed Belt

Tooth Belt Roller

Check tension of toothed belt between tensioning roller and camshaft sprocket. It should be just possible to twist the belt 90 engine should be ai T.D.C. for this check . 2. Turn engine in direction of rotation to T.D.C. cyl. 1 . Mark on camshaft sprocket should line up with pointer on camshaft housing. 2. Turn engine in direction of rotation to T.D.C. cyl. 1 . Mark on camshaft sprocket should line up with pointer on camshaft housing.

Changing Engine Oil And Filter

Porsche 944 Oil Filler Cap

Engine must be at operating temperature 1. Loosen and remove oil filler cap. 3. Loosen oil filter with appropriate toot. 1. Loosen and remove oil filler cap. 3. Loosen oil filter with appropriate toot. contacts crankcase and tighten one more turn. contacts crankcase and tighten one more turn. 6. Add engine oil, run engine Lo operating temperature and check for leaks. 7. Check oil level after turning off engine.

Note

Do not operate clutch when slave cylinder is removed. Removing and Installing Clutch 27 6. Remove mounting bolts and slide throw-out bearing sleeve towards flywheel. 7. Loosen pressure plate mounting bolts evenly. 9. Detach release fever from ball pin by pressing down and in direction of flywheel. 10. Slide entire clutch assembly back and remove.

Removing And Installing Brake Pads

Brake Booster Rod Adjustment

Pull sensor for brake pad wear indicator out of pad backing plate. 2. Remove retaining pin spring lock. If brake pad wear sensor has been rubbing on brake disc, replace sensor complete with wires and plug. Mark brake pads before removing. If they will be reused, pads must be reinstalled in the same position. 1. Pull sensor for brake pad wear indicator out of pad backing plate. 2. Remove retaining pin spring lock. If brake pad wear sensor has been rubbing on brake disc, replace sensor...

Changing Transmission

Draining Differential 928

Amount approx. 3.8 liters of hypoid oil SAE 90, Ml L-L-2105 B API Classification GL 5. 2. Clean filler plug, drain plug for gearbox and magnetic drain plug for differential case and tighten to 1.9 2.3 mkp 14 17 ft lbs . 1. Drain oil with transmission at operating temperature. Oil is drained separately from gearbox and differential case, 3. Add transmission oil until it runs out of filler plug with car on level surface approx. 3.8 Itr .

Changing Coolant And Bleeding System

Run engine to operating temperature and recheck coolant level. Coolant level should be in the middle of the header tank. 4. Unscrew coolant drain plugs on left and righthand sides of crankcase and drain 1. Set heater lever at warm. 3. Unscrew drain plug on radiator and drain coolant. 5, Replace seals for drain plugs on crankcase and o-ring for drain plug on radiator. Tightening Torques Radiator plug 0,2 mkp 1,5 ft lbs Coolant drain plugs 4.5 - 5.0 mkp 32 36 ft lbs 6. Add coolant until level...

Installing

Remove Pressure Plate From 928s

Guide entire clutch assembly into bell housing and center both clutch discs hubs face release bearing with short drive shaft. To prevent clutch dragging, press the sliding mount for the bracket back with a screwdriver in direction of pressure plate until the gap is correct. Clutch discs are different. Solid center disc I is between flywheel and intermediate ring. Spring center disc II is between intermediate ring and pressure plate. 2. Tighten mounting bolts evenly. Tightening torque 2.3 mkp...

Starter Power Supply

Engine Timing Light Circuit Diagram

Measure acid density of each cell. 1. car is not used for long time, 2. temperatures are below 10 C or 3. acid density will not rise in spite of long drive Check alternator, regulator, v-belts . 4. Checking the acid density also indicates any existing defects in addition to the charge condition. a Acid density of one eel much lower than in other cells short circuit in discharged cell, battery defective. b Acid density of two neighboring cells much lower than in other cells leak between both...

Adjusting Ignition Timing

Porsche 930 Turbo Ignition Timing

Warm-up engine oil temperature between Unlike CDI systems, tachometers can be 80 and 90 C . connected to the ignition coil. 4. Adjust ignition timing to 31 BTDC at an engine speed of 3000 R.P.M. by loosening and turning distributor. Timing light is connected to ignition wire of cylinder 1. 2. Connect engine tester or timing light and tachometer. A positive terminal for connection of testers is located in engine compartment above control unit. Timing light is connected to ignition wire of...

General

Porsche 928 Power Steering Pump

Front or rear pick-up points Use a block of wood between jack and pick-up point at rear . On Cross member for rear axle control arms. Never lift on engine oil pan or transmission. REPLACING V-BELTS FOR ALTERNATOR, POWER STEERING PUMP, AND AIR PUMP 4. Loosen bolt for alternator, loosen rear guard, swing alternator inward and remove v-belt. 2. Loosen boits on power steering pump, swing pump inward and remove v-belt. 2. Loosen boits on power steering pump, swing pump inward and remove v-belt. 4....