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Originally Posted by colingibb
Hi,
I am about to replace the head gasket on my 92 300E 2.6 with 176,000 miles on her, as it is leaking oil at the front of the head which I have found out is a very common problem on this engine.
While I am doing that I want to put new valve stem seals, timing chain, and oil pump chain on too. Are there any other parts I should replace while I have the head off?
I have done similar work on other cars but this is the first time I'm tackling a Mercedes. What I need to know are there any special tools I would have to get and what potential problems might I face during the job?
Thanks,
Colin.
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I am currently replacing a h/gkt on about the 60th 300e .
There are a few things you need to know.
There is a fair description of proceedure on Alldata DIY for a fee.
You need...
Torx TX25.
12mm/13mm end wrenches.
13mm universal drive.
Long 3/4in drive extensions.
Wobble extensions.
5mm/3mm/12mm Allen keys.
Long 'L' fan boss lock tool.
10mm/12mm/13mm/17mm/19mm sockets.
Chain guide pin remover.
Crank socket and torque wrench...(300 Nm !)
Flywheel lock #601 589 02 40 00.
Guard plate for radiator..600 x 480 mm.
Single row chain riveter.
Screw driver.
Clamp driver.
Valve stem seal tool.
12mm multi socket cylinder head bolts.
Parts you need are...
Upper rad' hose...OE style, thin wall.
Bypass hose...OE tappered.
Chain...single row.
Master link.
Cam sprocket.
Upper engine gasket set.
Valve stem seals..(.not included with h/gskt set.)
Rotor.
Distributor cap.
S. plugs.
Valve cover gasket.
Coolant.
Thermostat.
Oil filter.
Oil.
Surp' belt.
Parts you might need....depending on wear...
Chain guides.
Chain tensioner.
Water pump.
Belt rollers.
Belt shockabsorber.
Belt tensioner.
If you change oil pump chain....which they never seem to need ...
Front crank seal.
Chain and master link.
Lower crank sprocket.
'Right Stuff' gasket maker.
Enjoy.........!
