1999 Alfa Romeo 145 Quadrifoglio fastener tightening specifications

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Condition	Value

expand_moreEngine tightening torques

expand_moreAir intake system


Intake manifold	12.54–15.49 lbf⋅ft12.54–15.49 lbf⋅ft17–21 N⋅m

expand_moreCarburetion


Injection nozzle (injector)	34.67–42.78 lbf⋅ft34.67–42.78 lbf⋅ft47–58 N⋅m

expand_moreCooling system


Coolant pump pulley	14.75–17.7 lbf⋅ft14.75–17.7 lbf⋅ft20–24 N⋅m

expand_moreCylinder head


Camshaft bearing	9.59–11.8 lbf⋅ft9.59–11.8 lbf⋅ft13–16 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing


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


Crankshaft central screws	250.77–278.8 lbf⋅ft250.77–278.8 lbf⋅ft340–378 N⋅m
Crankshaft pulley	17.7–21.39 lbf⋅ft17.7–21.39 lbf⋅ft24–29 N⋅m
Flywheel	89.25–109.9 lbf⋅ft89.25–109.9 lbf⋅ft121–149 N⋅m
Main bearing	70.81–87.77 lbf⋅ft70.81–87.77 lbf⋅ft96–119 N⋅m

expand_moreEngine control


Camshaft timing gear	73.76–91.46 lbf⋅ft73.76–91.46 lbf⋅ft100–124 N⋅m
Toothed belt tensioning roller	27.29–33.93 lbf⋅ft27.29–33.93 lbf⋅ft37–46 N⋅m
Toothed belt tightener	15.49–19.18 lbf⋅ft15.49–19.18 lbf⋅ft21–26 N⋅m

expand_moreEngine lubrication


Oil drain plug	12.54–15.49 lbf⋅ft12.54–15.49 lbf⋅ft17–21 N⋅m

expand_moreOil sump


M6	5.16–6.64 lbf⋅ft5.16–6.64 lbf⋅ft7–9 N⋅m
M8	15.49–19.18 lbf⋅ft15.49–19.18 lbf⋅ft21–26 N⋅m

expand_moreEngine management


Glow plugs	9.59–11.8 lbf⋅ft9.59–11.8 lbf⋅ft13–16 N⋅m
Lambda sensor	29.5–36.88 lbf⋅ft29.5–36.88 lbf⋅ft40–50 N⋅m

expand_moreExhaust system


Exhaust manifold	12.54–15.49 lbf⋅ft12.54–15.49 lbf⋅ft17–21 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


M10	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M14	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_morePower transmission tightening torques

expand_moreClutch


Clutch pressure plate	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m

expand_moreSuspension front tightening torques

expand_moreFront axle brake


Bleed valve	2.95–4.43 lbf⋅ft2.95–4.43 lbf⋅ft4–6 N⋅m

expand_moreBrake hose


At the brake caliper	11.06–14.01 lbf⋅ft11.06–14.01 lbf⋅ft15–19 N⋅m
At the brake line	9.59–11.06 lbf⋅ft9.59–11.06 lbf⋅ft13–15 N⋅m


Brake line	2.95–4.43 lbf⋅ft2.95–4.43 lbf⋅ft4–6 N⋅m
Front axle brake caliper	22.86–28.03 lbf⋅ft22.86–28.03 lbf⋅ft31–38 N⋅m

expand_moreFront axle brake caliper mounting support


M6	42.04 lbf⋅ft42.04 lbf⋅ft57 N⋅m
M8	77.44 lbf⋅ft77.44 lbf⋅ft105 N⋅m


Front axle brake disc	3.69–9.59 lbf⋅ft3.69–9.59 lbf⋅ft5–13 N⋅m

expand_moreFront axle steering


Steering gear	77.44–85.56 lbf⋅ft77.44–85.56 lbf⋅ft105–116 N⋅m
Track rod end on stub axle	21.39–26.55 lbf⋅ft21.39–26.55 lbf⋅ft29–36 N⋅m
Track rod end on track rod	22.13–27.29 lbf⋅ft22.13–27.29 lbf⋅ft30–37 N⋅m

expand_moreWheel suspension


Wheel hub wheel bearing	206.52 lbf⋅ft206.52 lbf⋅ft280 N⋅m

expand_moreWheels and tires


Wheel attachment	61.22–75.97 lbf⋅ft61.22–75.97 lbf⋅ft83–103 N⋅m

expand_moreSuspension rear tightening torques

expand_moreRear axle brake


Brake drum	3.69–9.59 lbf⋅ft3.69–9.59 lbf⋅ft5–13 N⋅m
Rear axle brake caliper	36.14–44.25 lbf⋅ft36.14–44.25 lbf⋅ft49–60 N⋅m
Rear axle brake caliper mounting support	36.14–44.25 lbf⋅ft36.14–44.25 lbf⋅ft49–60 N⋅m
Rear axle brake disc	3.69–9.59 lbf⋅ft3.69–9.59 lbf⋅ft5–13 N⋅m

expand_moreRear axle wheel suspension


Wheel hub wheel bearing	196.19–216.84 lbf⋅ft196.19–216.84 lbf⋅ft266–294 N⋅m

expand_moreWheels and tires


Wheel attachment	61.22–75.97 lbf⋅ft61.22–75.97 lbf⋅ft83–103 N⋅m

When assembling your 1999 Alfa Romeo 145 Quadrifoglio it's important to tight threaded fasteners with Alfa Romeo prescribed torques using a torque wrench. If the torque values is lower then prescribed, bolt may unscrew itself and assembly may fall apart. If the torque value is higher then prescribed, bolt may simply break. The torque wrench allows you to tighten all bolts of the assembly with the same torque applied.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1999 Alfa Romeo 145 Quadrifoglio 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 Alfa Romeo warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

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 Alfa Romeo 145 Quadrifoglio 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 1999 Alfa Romeo 145 Quadrifoglio you're not only saving money, but also also improving your technical skills and learning something new.

1999 Alfa Romeo 145 Quadrifoglio Series 3 Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Alfa Romeo 145 Quadrifoglio Series 3 model years

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