280SL 1968 Engine adjustment

[Thierry du Laos]

I am trying to adjust the engine.
When idle is ok, if apply the brake: the RPM increase! Which is a problem when braking!!!!!
I though the engine was to rich, but if i increase air with the idle air screw, then it will stop or won't stand the gear shifting!!!!
Quite tricky between richness, gear auto, idle actuator and brake vacum?
Or do I miss something!!!!
I am going round and round....

[twistedtree]

If the RPMs increase when you apply the break, you have a vacuum leak in your brake booster.  It's a pretty common problem.  The booster will need to be rebuilt.

[nadeem]

First check brake booster leak

[Thierry du Laos]

Thanks, I will.

[Thierry du Laos]

Correct, its the membrane!










Now, new step is where can I find these membranes?

[Thierry du Laos]

Finally I have got the 2 two brand new membranes and will re-assembly the brake booster.



And next is the new soft top!

I can't wait any more to cruise with the car!!!!

[Cees Klumper]

Good for you Thierry, c'est bien fait. Good luck with the repairs, keep us posted.

[Fintail]

Hi Thierry

A good result, from where did you find the membranes

Thank you

John

[Thierry du Laos]

Hi,
Quite difficult to find the membranes. Got them form a member of the forum.....
Now the engine is fine and the brakes too.
I just need to finish the soft top to go and cruise!

[cfm65@me.com]

Well done, Thierry,
Regards
Chris

[Thierry du Laos]

Thanks Chris....

[stickandrudderman]

Would "the member on the forum" please reveal himself!

[rgafitanu@gmail.com]

+1