1994 BMW 8 Series engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreCylinder head

expand_moreCylinder head screws

expand_moreAll BMW gasoline V8 4.0 L M60 B40 (408S1) engines

Figure 1. Cylinder head, Cylinder head screws, BMW gasoline V8 4.0 L M60 B40 (408S1).


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
See figure 1.
Second stage	80°80°80°
Third stage	80°80°80°

expand_moreAll other modifications

Figure 2. Cylinder head, Cylinder head screws, All other modifications.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace the screws, do not wash off the coating. See figure 2.
Second stage	60°60°60°
Third stage	60°60°60°

expand_moreValve cover


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreEngine block

expand_moreCrankshaft central screws


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Replace bolt.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	30°30°30°


Drive plate	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreFlywheel


All BMW gasoline V8 4.0 L M60 B40 (408S1) engines	77.44 lbf⋅ft77.44 lbf⋅ft105 N⋅m
Lightly lubricate the screws thread.
All other modifications	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Replace screws.

expand_moreEngine control

expand_moreTiming case cover


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication

expand_moreOil drain plug


M12 × 1,5 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreExhaust system

expand_moreExhaust manifold


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace nuts.
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace nuts.
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace nuts.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1994 BMW 8 Series 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 BMW 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

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 BMW 8 Series 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 1994 BMW 8 Series you're not only saving money, but also also improving your technical skills and learning something new.

1994 BMW 8 Series First generation Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

BMW 8 Series First generation model years

Suggest edit