[buckeyemerritt]

I recently purchased an 86 560sl with 83k.

The top end is making more noise than I would think it should.

I am still waiting on my repair manual but wondered if you can manually adjust the valves?

The exhaust also has some issues, and I think I read here somewhere that a bad exhaust manifold can make similar noise.

It sound like a smooth singer sewing machine now.

Any thoughts?

 

[bluewater1]

PM me and I can send you a service procedure.

 

[isthisdave]

.



The valve train is hydraulic, with adjustment via varying thickness hockey puck like shims between the rocker arm and valve stem. Although quite doable, it is not simply a turn the wrench procedure to adjust the valves, and it requires several special tools. I think member bandit96 may have them available.

 

[BigFish246]

Can someone please provide me the instructions on how perform a valve adjustment?
Thank you in advance.

 

[Ruindr]

Can someone please provide me the instructions on how perform a valve adjustment?
Thank you in advance.

You don't do a valve adjustment like on the old M110 on a M117 (560 SL) The valve clearance is automatically adjusted by hydraulic compensators. If you need to change a rocker arm, the basic position of the hydraulic element should be checked with a go-no-go gauge. If out of spec, shims can be added (as mentioned above). Reason for changing a rocker arm is often a ticking sound from the valve train. This is primarily caused by poor lubrication over time (oil feeder tube clogged or out of position).

See this thread for a more comprehensive intro: http://www.benzworld.org/forums/r-c107-sl-slc-class/2517129-clicking-sound-cylinder-3-4-a.html

If you want to do a traditional valve adjustment, search for @nobby's excellent DIY write up on this.

 

[rick]

There are many "low mile" 380SL's and 560SL's. The problem is that they are "low mile" because the odometer quit working decades ago.