Quote:
Originally Posted by Maxbumpo
I am going to try the clutched alternator pulley from INA on my '87 wagon to see if that reduces the bouncing. The pulley was installed on the OM606 engines in the 210 series, so it is backward compatible to your car if you are interested. Looks like Peach Parts sells the pulley for about $30, but you also need special tools to install or pay a shop to install it for you.
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I recently installed the clutched INA pulley on my SDL, and even with the stock 70A alternator it makes a difference. Perhaps the most noticeable is the lack of the belt making a "wooooooooo" noise when the A/C is running. A certain website named after a South-American rainforest has the tool for ~$20-25. Most of the tools come with a T50 Torx or 10mm XZN bit. Be aware that the really old alternators have an 8mm Allen shaft instead of the above mentioned Torx or XZN.