upper control arm w126
 

anybody know the torque spec on the upper control arm ball joint fastening nut on 89 300se,gooten tight will probably be ok but i like to torque things down properly,thanks for any input on this.:cool:

I did this one last year. It is 40 Nm or 30 ft lbs. Verified from the FSM.

Sorry, but what is the FSM and is there a more complete list of common torque specs?

FSM is an abbreviation for factory service manual

This is the place where most people go to settle their arguments!

It is also the place where you'll find all of the torque specifications you need.

As far as I know nobody has made an extensive list here yet.

You could be a pioneer (if you want)!

Ah, thank you. I have the "Service Manual Chassis and Body Series 126". It is obviously quite good, but some bits are missing or I am too blind/dumb to find. For example, the oil filter bolt specs or the oil plug (I have been using 15 ft/lbs).

Still drinking from the fire hose, but your suggestion is a good one. I'll fish around for the specs in the manual and try to summarize it. Are there other manuals that would be handy to look for?

Well not really.

The FSM really is the argument stopper - if you get what I mean. It can be a bit of a pain to use though...

Sometimes I do a quick check in my W123 Haynes (Diesel) manual but I have noticed that some of the conversions from metric to imperial are wrong - so be warned.

Compare the two numbers => ft-lbs should be (very) approximately two-thirds of the value stated in Newton meters (it is actually closer to 70% - so alternatively think of going shopping and getting 30% off for a more accurate rough check)

If you happen to have your computer up and running a search here can also help. I often use a separate tab and use google to get my results. The internal search function isn't very good in my opinion.

<Fill in search term here> site:peachparts.com

Good luck with the list. And if you publish it don't get disheartened if you get lots of "yeah but what about the..." comments.