1990 Opel Kadett Sedan engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


All Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAuxiliary assemblies

expand_moreAlternator

expand_more1.7 D with diesel straight-4 1.7 L 56 HP engine (1989.2–1991.8)


M10 screws	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m
M8 screws	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreServo steering pump

expand_more1.7 D with diesel straight-4 1.7 L 56 HP engine (1989.2–1991.8)


Nuts	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Tensioning screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCarburetion

expand_moreInjection nozzle (injector)


All Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreInjection pump pulley


1.7 D with diesel straight-4 1.7 L 56 HP engine (1989.2–1991.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCooling system

expand_moreCoolant pump


Opel gasoline straight-4 1.8 L 18 E 113 HP	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing


All Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


Valve cover	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreAll Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	45–60°45–60°45–60°

expand_moreAll Opel diesel straight-4 1.7 L 17 D engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.3 L C 13 N engines


First stage	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Second stage	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreAll Opel gasoline straight-4 1.4 L C 14 NZ engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	30°30°30°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws and nuts.
Second stage	30°30°30°

expand_moreCrankshaft central screws


Opel diesel straight-4 1.5 L 15 DT (T4EC1) 71 HP	121.7 lbf⋅ft121.7 lbf⋅ft165 N⋅m

expand_moreAll other modifications


First stage	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Replace screws and nuts.
Second stage	40–50°40–50°40–50°

expand_moreCrankshaft pulley

expand_moreAll Opel gasoline straight-4 1.4 L 14 NV engines


Screw with thread length 23 mm	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreScrew with thread length 30 mm


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.6 L 16 SV engines


Screw with thread length 23 mm	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreScrew with thread length 30 mm


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.3 L C 13 N engines


Screw with thread length 23 mm	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreScrew with thread length 30 mm


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°


All Opel gasoline straight-4 1.8 L E 18 NV engines	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws and nuts.
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFlywheel

expand_moreOpel diesel straight-4 1.7 L 17 D 56 HP


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 1.3 L C 13 N 59 HP at 5600 RPM, 96 N⋅m at 3400 RPM


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreOpel diesel straight-4 1.5 L 15 DT (T4EC1) 71 HP


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Second stage	45–60°45–60°45–60°

expand_moreOpel gasoline straight-4 1.4 L 14 NV 74 HP


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 1.6 L C 16 LZ 74 HP at 5200 RPM, 121 N⋅m at 3400 RPM


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 1.6 L 16 SV 80 HP at 5400 RPM, 130 N⋅m at 3400 RPM


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 1.8 L E 18 NV 83 HP at 5400 RPM, 137 N⋅m at 3400 RPM


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing

expand_moreAll Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines


First stage	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Second stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m

expand_moreAll Opel gasoline straight-4 1.3 L C 13 N engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.4 L C 14 NZ engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Second stage	45–60°45–60°45–60°

expand_moreAll Opel gasoline straight-4 1.6 L E 16 NZ engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	45–60°45–60°45–60°

expand_moreAll other modifications


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreEngine control

expand_moreCamshaft drive belt deflection pulley


1.7 D with diesel straight-4 1.7 L 56 HP engine (1989.2–1991.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCamshaft timing gear

expand_moreAll Opel gasoline straight-4 1.4 L 14 NV engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreAll Opel diesel straight-4 1.7 L 17 D engines


First stage	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Replace screws.
Second stage	60–65°60–65°60–65°

expand_moreAll Opel gasoline straight-4 1.8 L E 18 NV engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	15°15°15°


All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


Toothed belt guard	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt guard at the bottom


1.7 D with diesel straight-4 1.7 L 56 HP engine (1989.2–1991.8)	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt guard at the top


1.7 D with diesel straight-4 1.7 L 56 HP engine (1989.2–1991.8)	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt tensioning roller


All Opel diesel straight-4 1.7 L 17 D engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication

expand_moreOil drain plug


All Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines	57.53 lbf⋅ft57.53 lbf⋅ft78 N⋅m
All Opel gasoline straight-4 1.6 L 16 SV engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L 17 D engines


One-part sump	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Two-part oil sump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


All Opel gasoline straight-4 1.4 L C 14 NZ engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All Opel gasoline straight-4 1.6 L C 16 LZ engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All Opel gasoline straight-4 1.6 L C 16 NZ engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreOil filter housing


All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreOil sump


Opel gasoline straight-4 1.8 L 18 E 113 HP	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
Opel gasoline straight-4 2.0 L 20 NE 114 HP at 5200 RPM, 175 N⋅m at 3000 RPM	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
Opel gasoline straight-4 2.0 L C 20 NE 114 HP at 5400 RPM, 170 N⋅m at 2600 RPM	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
Opel gasoline straight-4 2.0 L 20 SE 114 HP at 5400 RPM, 175 N⋅m at 2600 RPM	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.

expand_moreOpel diesel straight-4 1.7 L 17 D 56 HP


One-part sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.

expand_moreOtherwise

expand_moreOil sump lower part


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second stage	30°30°30°

expand_moreOil sump top part


On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreOpel gasoline straight-4 1.4 L C 14 NZ 59 HP

expand_moreAt the gearbox


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


On the engine block	7.38–11.06 lbf⋅ft7.38–11.06 lbf⋅ft10–15 N⋅m


Opel diesel straight-4 1.5 L 15 DT (T4EC1) 71 HP	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Opel gasoline straight-4 1.8 L 18 SV 89 HP	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
Opel gasoline straight-4 1.8 L C 18 NT 89 HP	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
Opel gasoline straight-4 1.8 L C 18 NZ 89 HP at 5400 RPM, 145 N⋅m at 2800 RPM	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.

expand_moreEngine management


Glow plugs	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Knock sensor	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
Lambda sensor	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use assembly paste

expand_moreExhaust system

expand_moreExhaust manifold


All Opel diesel straight-4 1.5 L 15 DT (T4EC1) engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.

expand_moreIgnition system

expand_moreSpark plugs


All Opel gasoline straight-4 1.4 L C 14 NZ engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1990 Opel Kadett Sedan user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Opel warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

Engine Fastener Tightening Specifications
Front Suspension Fastener Tightening Specifications
Rear Suspension Fastener Tightening Specifications
Transmission Fastener Tightening Specifications

Service Intervals

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Opel Kadett Sedan service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 1990 Opel Kadett Sedan you're not only saving money, but also also improving your technical skills and learning something new.

1990 Opel Kadett Sedan E facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Opel Kadett Sedan E facelift model years

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