M42 maintenance list

[5ickride]

Just recently picked up a 318ic and want to do an overhaul on engine maintenance. Can someone let me know what items i should start replacing...timing chain?...

Thanks

[bmwm42]

timing chain tensioner would be first on the list

[Dj Buttchug]

all fluids changed.
lower pan gasket. locktite bolts
delete useless hoses ect
timing chain guides and tensioner

[shEck3lls0]

delete useless hoses ect

What do you mean useless hoses?

[Dj Buttchug]

mess under the intake. delete the heater plates in the throttle body as well.
theres a huge mess of coolant lines you dont need under the intake mani

[Eecen]

Check out m42club, site devoted to that rattly little bastard.


disclaimer; I enjoy my m42, even if it is slow.

[KenC]

Check the condition of the chain guides, and the cam gears. Update the uppermost chain guide to the all plastic version. Profile gasket if it hasn't been replaced. Also, there is an updated oil pressure relief valve.

[NightfoxCT]

Recommend checking out a few of your sensors also. Tps/ 02/ coolant

Clean out Trottle body and ICV

Valve adj.

and everything above

[Dj Buttchug]

valves are hydraulic. no adjustment is needed

[MikeDE]

Check out m42club, site devoted to that rattly little bastard.

I lol'd, woke up my kids.

[5ickride]

Thanks, I also just bought a MarkD chip to go along with the maintenance, hopefully she'll be a gem when she's done.

[Massimo]

Pull engine

Rebuild 2.1lt.

LOL

Seriously though it depends how far you want to go. A list of things I would recommend listed as high priority to low priority.

Change Fluids
Timing Chain Tensioner
Check oil pick up bolts
Mess under the intake
Delete Heater Plate.
Water Pump
Thermostat
Timing Components
Fan Clutch
COP Kit
Mustang Injectors
VW lifters

And if you are really keen and competent get a Head Gasket kit.

[Simon S]

^^ good list right there

[Ryann]

It may or may not need anything. How many miles on the ODO? Did it come with any service records? I say if it's without chain rattle, idles nice, and doesn't loose coolant just change the engine/trans/diff oil, fuel filter, and air filter and drive it.

[5ickride]

Pull engine

Rebuild 2.1lt.

LOL

Seriously though it depends how far you want to go. A list of things I would recommend listed as high priority to low priority.

Change Fluids
Timing Chain Tensioner
Check oil pick up bolts
Mess under the intake
Delete Heater Plate.
Water Pump
Thermostat
Timing Components
Fan Clutch
COP Kit
Mustang Injectors
VW lifters

And if you are really keen and competent get a Head Gasket kit.

Thanks for that list! QQ, what are the "Mustang Injectors" for? Performance? Also, my ignition coils seem to be good ATM, but should I still see about getting a COP kit?. Finally, what are "VW Lifters?"

It may or may not need anything. How many miles on the ODO? Did it come with any service records? I say if it's without chain rattle, idles nice, and doesn't loose coolant just change the engine/trans/diff oil, fuel filter, and air filter and drive it.

She's got under 106k and no records besides what I was told. The Idle is bouncy when I start her up but then settles and idles fine once engine is warm.

I've put together a list of what I'm thinking about changing:
-Belts (AC, PS, Alt)
-Intake Manifold Gaskets
-Water Pump/T-Stat
-Valve Cover Gasket
-Timing Chain Tensioner
-Timing Chain Guides (plastic version)
-Lower Pan Gasket
-Profile Gasket
-Oil Pressure Relieve Valve
-Sensors (Crank Position, o2, Coolant, Camshaft Position)
-Hoses (water, coolant)
-Filters (oil, fuel, air)
-Spark Plugs
-Fan Clutch
-Fluids (oil, trans, diff)

I'll also:
-Delete Heater Plates
-Delete the useless coolant lines under the IM
-Clean out throttle body and ICV

Anything major that i'm missing?

Thanks