Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Chevrolet Nova, Spectrum, Sprint 1985-1988. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your vehicle like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.
This manual for Chevrolet Nova, Spectrum, Sprint 1985-1988 is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.
Chevrolet Nova 1985-1988
Chevrolet Sprint 1985-1988
Chevrolet Spectrum 1985-1988
1988 GENERAL MOTORS ENGINES 1.0L 2-Bbl. & 1.0L EFI Turbo 3-Cylinder
Engine can be identified by the 8th character in the Vehicle Identification
Number (VIN). VIN is stamped on a metal plate located on top of dash panel, on lower left corner of windshield.
ENGINE IDENTIFICATION CODES
VALVE CLEARANCE ADJUSTMENT
Rear of Vehicle - Intake Valves.
Front of Vehicle - Exhaust Valves.
1. Remove rocker arm cover. Rotate crankshaft clockwise and align timing notch on crankshaft pulley with "0" mark on timing tab. Remove distributor cap and ensure rotor is at 3 o'clock position. This position indicates engine is at compression stroke, TDC No. 1 cylinder. See Fig. 1.
2. Using a feeler gauge between rocker arm and valve stem, check intake and exhaust valve clearance on cylinder No. 1. After adjustment, tighten lock nut.
NOTE: For engine repair procedures not covered in this article, see ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article in the GENERAL INFORMATION section.
Fig. 1: Adjusting Valve Clearance
3. Rotate crankshaft an additional 240 degrees clockwise and align timing notch on pulley with lower left attaching bolt of timing belt outer cover.
Check valve clearance for cylinder No. 3.
4. Rotate an additional 240 degrees clockwise from left attaching bolt and align timing notch with lower right attaching bolt. Check valve clearance for cylinder No. 2. Install distributor cap, rocker arm cover and air cleaner.
REMOVAL & INSTALLATION
1. On models with EFI Turbo, depressurize fuel system by removing fuel tank cap to release fuel vapors. Start engine, disconnect fuel pump relay connector and wait until engine stops running. See Fig. 2.
NOTE: On EFI Turbo models, main relay and fuel pump relay are identical. Identify fuel pump relay by color of wires as follows: (Pink, Pink/White, White/Blue, White/Blue). See Fig. 2.
Fig. 2: Fuel Pump Wire Connector (EFI Turbo models)
2. On all models, disconnect battery cables. Remove battery, battery tray and hood. Remove air canister or intercooler on EFI Turbo models. Drain coolant and remove radiator hoses. Disconnect cooling fan wires.
3. Remove radiator and cooling fan as an assembly. Disconnect fuel lines and heater hoses. Identify, mark and remove vacuum lines and hoses at engine.
Disconnect accelerator cable at carburetor or throttle body. Remove fresh air duct.
4. Disconnect speedometer and clutch cable with bracket at transaxle. Label and disconnect engine and transaxle wiring. Loosen A/C compressor adjusting bolt. Remove drive belt splash shield. Raise vehicle and disconnect exhaust pipe at manifold.
5. Loosen A/C compressor pivot bolt. Remove drive belt and A/C compressor mounting bracket. Disconnect gearshift control shaft and gearshift extension rod at transaxle. Drain transaxle and engine oil. Disconnect ball joints and drive axles.
6. On EFI Turbo models, remove front bumper from damper flange. Remove turbocharger covers and exhaust bolts. Remove upper and lower exhaust pipes together. Remove air inlet pipe, oil pipe from cylinder block and water hoses.
7. Remove engine torque rods and transaxle mount nut. Lower vehicle and remove engine side mount and mount nuts. Install chain hoist and remove engine and transaxle as an assembly.
Lower engine and transaxle into vehicle. Install rear mount nut. Raise vehicle and support engine. Remove front mount and bracket at frame. Align stud of motor mount with hole in engine bracket. Lower engine and install bolts into frame bracket. To complete installation, reverse removal procedure.
1. Depressurize fuel system on EFI Turbo models. Disconnect negative battery cable. Drain coolant and disconnect coolant hoses at intake manifold.
2. On EFI Turbo models, remove surge tank together with throttle body.
3. Disconnect warm air, fresh air, secondary air and vacuum hoses. Disconnect EGR modulator. Remove air cleaner assembly or intercooler on EFI Turbo models.
4. On EFI Turbo models, disconnect fuel injector couplers and delivery pipes with injectors. On all models, disconnect throttle control cable and electrical leads. Remove emission control and fuel hoses. On models with carburetor, remove choke heater hoses.
5. On all models, remove electrical leads and couplers at intake manifold. Remove emission control, coolant and brake booster hoses from intake manifold. Remove bolts and intake manifold from cylinder head.
1. Clean all mating surfaces. Using a new gasket, install intake manifold on cylinder head. Install wire harness clamps. Ensure that wires do not interfere with fuel pump. On models with carburetor, install 3-Way Solenoid Valve (TWSV) with terminals facing away from carburetor. Tighten manifold nuts and bolts.