Today, I adjusted the valves of my 83 300D Turbo.
Using a 22mm on the Power Steering bolt, I turned the engine and watched for the next lobe on the camshaft to be directly opposite the rocker arm and then checked and adjusted.

It so happened that Valve 1 Intake was the first one, in this case. If u just daisy chain from any one u start at, u will have adjusted all valves with minimal cranking.

Ur comments on this method would be appreciated.

Intake Exhaust

Valve 1 1 8

Valve 2 3 10

Valve 3 9 6

Valve 4 5 2

Valve 5 7 4

Somethinf took the spacing out.

Once again, below is the sequence the respective lobes were directly opposite the rocker arm.



------------------- INTAKE--------------------EXHAUST

VALVE 1'''''''''''''''''''''''1''''''''''''''''''''''''''''''''''''''''''''''8
'
VALVE 2'''''''''''''''''''''''3''''''''''''''''''''''''''''''''''''''''''''''10
'
VALVE 3'''''''''''''''''''''''9''''''''''''''''''''''''''''''''''''''''''''''6
'
VALVE 4'''''''''''''''''''''''5''''''''''''''''''''''''''''''''''''''''''''''2
'
VALVE 5'''''''''''''''''''''''7''''''''''''''''''''''''''''''''''''''''''''''4

Am I reading your chart above-illustrated correctly?

I see that you referenced the Valves by #1 thru #10 (front to rear) irrespective of what they are. IOW, Valves #1 and #2 belongs to #1 cylinder, Valves #2 and #3 belongs to #2 cylinder, and so on. If so, shouldn't Valve #1 on #1 cylinder be EXHAUST?

I stand to be corrected.

Attached Thumbnails

 

Good catch!

Valve 1,2,3,4,5 on the left side should read as Cylinder 1,2,3,4,5.

Each cylinder would have an intake and exhaust valve.

You have not answered my question.

Base on your chart, Valve #1 should be under the EXHAUST column (see thumbnail photo)?

I can answer and say yes. The first one is definitely exhaust.

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never done a valve adjustment before...so i'm clueless!
I would like to do this someday but i need those wreches---> i want to do a great job too on it

I wrote on a piece of paper the clearance for each valve as I adjusted. To start I wrote 1 2 3 4 5 and I E for each cylinder.

1 I E
2 I E
.
.
.

etc

It didn't look like this, I made it like a diagram of the valves.

When you have written a clearance for each valve you are finished. Adjust them in order that the cam lobe faces away from the rocker.

Gravy work, if you don't like adjusting valves, you should probably let someone else work on your car.

What is normal charge for a value adjustment job if I bring my 1985 300D to a mechanic?

Thank you

Steve

Is the above a safe method? I'm afraid that something might break at the PS component.

The factory CD recommends the use of a 27mm socket (1/2 rachet) but without illustration. Where exactly would you insert it to turn the engine manually?

I used a strap wrench around my crank pullies but I did it with my injectors out so the engine is easy to turn. With the strap wrench I could turn the engine over from the top. With the injectors out you could probably grab a belt with your gloved hands and turn the engine.

I saw no need for special wrenches.

Hi TwitchKitty
The way you do it is very good, and smart.
Have a great day.

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It is a BAD IDEA to use the power steering pulley or nut to turn the engine. It was not made for that . The factory shop manual specifies using the Crank Bolt for this...
The power steering pulley has a tapered fit ....
It can take a lot of work to get that pulley off ( read multiple oxy-acet heatings) plus a lot of hammering or hydraulic pressure....
There are plenty of posts about this situation already in the files...

I learned about this method from a mercedes benz mechanic at the local dealership.

When using the 22mm steering pump bolt, use ur other hand and press down a little on the steering pump belt to ensure it is under pressure when u r rotating. Not much but just pressing it down about 1/2 inch or so.

The sequence u see in my post above is as folllows :

The injector number is down the left hand column.
Each injector has an intake and exhaust.
Looking at the intake and exhaust colums, U will see that they go from 1 to 10. The sequence indicates the corresponding lobe that is ready to be adjusted when in position.

Are these service manuals original or copies of the original?