1990 VOLKSWAGEN CORRADO timing belt

ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION
Article Text (p. 31)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:44PM
TENSION ADJUSTMENTS
If guide rails are used with spring loaded tensioners,
ensure at least half of original rail thickness remains. Spring
loaded tensioner should be inspected for damage.
Ensure all timing marks are aligned. Adjust belt tension
using manufacturer's recommendations. Belt tension may require
checking using tension gauge. See Fig. 26.Fig. 26: Timing Belt Tension Adjustment - Typical
This Graphic For General Information Only
TIMING GEARS
* PLEASE READ THIS FIRST *
NOTE: Always refer to appropriate engine overhaul article in the
ENGINES section for complete overhaul procedures and
specifications for the vehicle being repaired.
TIMING GEAR BACKLASH & RUNOUT
On engines where camshaft gear operates directly on
crankshaft gear, gear backlash and runout must be checked. To check
backlash, install dial indicator with tip resting on tooth of camshaft
gear. Rotate camshaft gear as far as possible. Adjust indicator to

INTERFERENCE VERIFICATION CHECK FOR OHC ENGINE
Article Text
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:46PM
ARTICLE BEGINNING
Maintenance & Service Information
1974-96 Volkswagen - Timing Belt Information
Cabrio, Cabriolet, Corrado, Dasher, Eurovan (Canadian), Fox,
Golf, Golf (Canadian), GTI, GTI (Canadian), Jetta, Jetta GLI,
Passat, Passat (Canadian), Pickup, Quantum, Rabbit, Scirocco,
Scirocco (Canadian), Transporter (Canadian), Vanagon
TIMING BELT INTERFERENCE VERIFICATION INFORMATION
TIMING BELT INTERFERENCE CAUTION
NOTE: CAMSHAFT DRIVE BELTS OR TIMING BELTS - The condition of
camshaft drive belts should always be checked on vehicles
which have more than 50,000 miles. Although some
manufacturers do not recommend replacement at a specified
mileage, others require it at 60,000-100,000 miles. A
camshaft drive belt failure may cause extensive damage to
internal engine components on most engines, although some
designs do not allow piston-to-valve contact. These designs
are often called "Free Wheeling". Many manufacturers changed
their maintenance and warranty schedules in the mid-1980's to
reflect timing belt inspection and/or replacement at
50,000-60,000 miles. Most service interval schedules shown in
this section reflect these changes. Belts or components
should be inspected and replaced if any of the following
conditions exist:
* Crack Or Tears In Belt Surface
* Missing, Damaged, Cracked Or Rounded Teeth
* Oil Contamination
* Damaged Or Faulty Tensioners
* Incorrect Tension Adjustment
TIMING BELT INTERFERENCE CHECK MENU
TIMING BELT INTERFERENCE VERIF. TABLE - PASSENGER CARS (1)ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Replacement Interval
Application Engine (Miles)
Cabrio
1995-96 .......... 2.0L 4-Cyl. ............ (3) 60,000
Cabriolet
1985-89 ....... 1.8L 4-Cyl. (DOHC) ........ (3) 60,000
1.8L 4-Cyl. (SOHC) ........ (3) 60,000
1990-93 .......... 1.8L 4-Cyl. ............ (3) 60,000
Corrado
1990-92 .......... 1.8L 4-Cyl. ............ (3) 60,000
Dasher

INTERFERENCE VERIFICATION CHECK FOR OHC ENGINE
Article Text (p. 3)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:46PM
1976-80 ..... (2) 1.5L 4-Cyl. Diesel ...... (3) 60,000
1981-84 ........ (2) 1.6L 4-Cyl.
Diesel & Turbo Diesel ....... (3) 60,000
1983-84 .......... 1.7L 4-Cyl. ............ (3) 60,000
1.8L 4-Cyl. ............ (3) 60,000
Scirocco
1976-79 .......... 1.5L 4-Cyl. ............ (3) 60,000
1976-80 .......... 1.6L 4-Cyl. ............ (3) 60,000
1983-84 .......... 1.7L 4-Cyl. ............ (3) 60,000
1.8L 4-Cyl. ............ (3) 60,000
1985-89 ....... 1.8L 4-Cyl. (DOHC) ........ (3) 60,000
1.8L 4-Cyl. (SOHC) ........ (3) 60,000
Scirocco (Canadian)
1989 .......... 1.8L 4-Cyl. (DOHC) ........ (3) 60,000
1.8L 4-Cyl. (SOHC) ........ (3) 60,000
(1) - Other interference engine applications may exist which
are not indicated here.
(2) - Interference engine. Check for possible damage to
piston(s) or valve(s) if there has been a timing belt
failure.
(3) - Although the vehicle manufacturer does not recommend a
specific scheduled maintenance interval, aftermarket
belt manufacturers suggest the belt be replaced at
60,000 mile intervals.
(4) - Vehicle manufacturer recommends replacing all belts at
the same time.ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄTIMING BELT INTERFERENCE VERIF. TABLE - LIGHT TRUCKS (1)
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Replacement Interval
Application Engine (Miles)
Eurovan (Canadian)
1992-96 .......... 2.5L 5-Cyl. ............ (3) 60,000
Pickup
1980 ....... (2) 1.5L 4-Cyl. Diesel ....... (3) 60,000
1980-83 .......... 1.6L 4-Cyl. ............ (3) 60,000
1981-83 .... (2) 1.6L 4-Cyl. Diesel ....... (3) 60,000
1.7L 4-Cyl. ............ (3) 60,000
Transporter (Canadian)
1992-96 .......... 2.5L 5-Cyl. ............ (3) 60,000
Vanagon
1981-82 .... (2) 1.6L 4-Cyl. Diesel ....... (3) 60,000
(1) - Other interference engine applications may exist which
are not indicated here.
(2) - Interference engine. Check for possible damage to
piston(s) or valve(s) if there has been a timing belt
failure.
(3) - Although the vehicle manufacturer does not recommend a

MAINTENANCE INFORMATION
Article Text (p. 3)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:48PM
Severe Service (Unique Driving Conditions)
* Short Trips In Freezing Temperatures
* Towing Or Heavily Loaded
* Severe Dust Conditions
* Hot Weather, Stop-And-Go Driving
* Extensive Idling
CAMSHAFT TIMING BELT
CAUTION: Failure to replace a faulty camshaft timing belt may result
in serious engine damage.
The condition of camshaft drive belts should always be
checked on vehicles which have more than 50,000 miles. Although some
manufacturers do not recommend belt replacement at a specified
mileage, others require it at 60,000-100,000 miles. A camshaft drive
belt failure may cause extensive damage to internal engine components
on most engines, although some designs do not allow piston-to-valve
contact. These designs are often called "Free Wheeling".
Many manufacturers changed their maintenance and warranty
schedules in the mid-1980's to reflect timing belt inspection and/or
replacement at 50,000-60,000 miles. Most service interval schedules in
this manual reflect these changes.
Belts or components should be inspected and replaced if any
of the following conditions exist:
* Cracks Or Tears In Belt Surface
* Missing, Damaged, Cracked Or Rounded Teeth
* Oil Contamination
* Damaged Or Faulty Tensioners
* Incorrect Tension Adjustment
Inspect camshaft timing belt condition every 20,000 miles.
Replace belt as necessary.
DRIVE BELT ROUTINGFig. 1: Drive Belt Tensioner Adjustment (VR6)
Courtesy of Volkswagen United States, Inc.

MAINTENANCE INFORMATION
Article Text (p. 8)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:48PM
CAMSHAFT TIMING BELT SERVICEFig. 7: Aligning 1.8L Timing Marks (8-Valve)
Courtesy of Volkswagen United States, Inc.
NOTE: For more information on camshaft timing belt service refer to
the 1.8L 4-CYL 8-VALVE & 2.0L 4-CYL 16-VALVE
article in the ENGINE MECHANICAL section.
ATTACHING VAG 1551 SCAN TESTER

MAINTENANCE INFORMATION
Article Text (p. 10)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:48PM
SERVICE LABOR TIMES
SERVICE LABOR TIMES TABLE (HOURS)ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ (1)(2) 15,000 (1)(2) 30,000 (60,000)
Application Mile Service Mile Service
Automatic Transmission ..... 1.6 .................. 3.3 (4.2)
Manual Transmission ........ 1.8 .................. 2.7 (3.6)
(1) - Add .2 hr. if equipped with A/C. Add .1 hr. if equipped
with cruise control.
(2) - Add 1.8 hrs. to replace camshaft timing belt (if equipped).
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ LUBRICATION SPECIFICATIONS
LUBRICATION SPECIFICATIONS TABLE
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Fluid Specifications
Engine Oil (1)
Ambient Temperatures
Greater Than 50
øF (10øC) .............. SAE 20W-50 API SF/CD
14
øF To 50øF (-10øC To +10øC) ......... SAE 10W-40 API SF/CD
Less Than 14
øF (-10ø C) ................ SAE 5W-30 API SF/CD
Brake Fluid ........................ SAE J1703 (DOT 3 Or DOT 4)
Power Steering Fluid ......................... VW Hydraulic Oil
(G 002000) Or Equivalent
Automatic Transmission ........... Dexron-IIE ATF Or Equivalent
Manual Transaxle .......................... SAE 80W API GL-4 Or
SAE 75W-90 (G50 Synthetic Gear Oil)
Final Drive (A/T & M/T)
(Differential) .......... SAE 75W-90 (G50 Synthetic Gear Oil)
Wheel Bearings .................... NLGI Grade 2 Category GC-LB
Drive Shaft U-Joints .............. NLGI Grade 2 Category GC-LB
Steering Linkage (2)(3) ........... NLGI Grade 2 Category GC-LB
Ball Joints (2)(4) ................ NLGI Grade 2 Category GC-LB
Weatherstrip ....................... Dielectric Silicone Grease
(1) - SAE 15W-40 or 20W-40 engine oil is recommended for extreme
conditions or extended highway operation.
(2) - Use low pressure grease gun to prevent seal damage.
(3) - Fill until lubricant squeezes out from the base of seals.
(4) - Fill ball joint until seal starts to swell.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ FLUID CAPACITIES
FLUID CAPACITIES TABLE
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

N - REMOVE/INSTALL/OVERHAUL
Article Text
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:49PM
ARTICLE BEGINNING
1990 ENGINE PERFORMANCE
Removal, Overhaul & Installation
Volkswagen; Cabriolet, Corrado, Fox, Golf GL/GTI,
Jetta, Vanagon
INTRODUCTION
Removal, overhaul and installation procedures are covered in
this article. If component removal and installation is primarily an
unbolt and bolt-on procedure, only a torque specification may be
furnished. See TORQUE SPECIFICATIONS at the end of this article.
REMOVAL & INSTALLATION
DISTRIBUTOR (DIGIFANT)
Removal (AFC-Digifant II)
Turn engine crankshaft to TDC. Remove distributor cap. Rotor
should point to No. 1 cylinder mark on edge of distributor housing.
Index mark the distributor housing to the crankcase relation. Remove
distributor hold-down clamp and bolt. Remove distributor assembly.
Installation
Align rotor with No. 1 cylinder mark on edge of distributor
housing. Install distributor and align housing to index mark made on
crankcase. Install distributor hold-down clamp and bolt. Install
distributor cap. Check timing. Tighten hold-down bolt to
specification. See TORQUE SPECIFICATIONS.
DISTRIBUTOR (CIS SYSTEMS)
Removal (CIS-E & CIS-E Motronic)
1) Turn engine crankshaft to TDC. Marking on vibration
dampener pulley must align with drive belt guard pointer. Marking on
cam shaft gear sprocket must align with cylinder head cover.
2) Remove distributor cap and mark position of rotor. Rotor
should be pointing to No. 1 cylinder in distributor firing sequence.
Mark position of distributor housing for installation reference.
Remove distributor hold-down clamp and bolt. Remove distributor
assembly, noting position of rotor when distributor shaft gear is
disengaged from driving gear.
Installation
1) Align oil pump drive pinion lug parallel to crankshaft.
Set rotor pointing toward mark made when distributor was disengaged
from drive gear.
2) Install distributor. Rotor should now point to mark made
for No. 1 cylinder in distributor firing sequence. Align mark for

SCHEDULED SERVICES
Article Text (p. 7)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:49PM
CAMSHAFT TIMING BELT SERVICEFig. 3: Aligning 1.8L Timing Marks (8-Valve)
Courtesy of Volkswagen United States, Inc.
NOTE: For more information on camshaft timing belt service refer to
the 1.8L 4-CYL 8-VALVE & 2.0L 4-CYL 16-VALVE
article in the ENGINE MECHANICAL section.
ATTACHING VAG 1551 SCAN TESTER