I'm going to change the chain on my dad's 300D Turbo as a precaution while we're servicing it (has excellent compression, factory rebuilt engine, but chain indicates it is way out of spec and the injection timing is off) but don't want to spend a ton on the tool.

There's several on eBay that say they're for later Mercedes but as far as I can tell are identical to the tool for earlier engines, and $60 is a bit nicer than $190 for the tool plus correct inserts for a double row chain.

Here's an example of what's one ebay, there's probably 4 or 5 different manufacturers though: https://www.ebay.com/itm/For-Mercedes-Benz-W203-Timing-Chains-Riveting-Tool-Set-Single-Row-Double-Row/303076051780?hash=item4690bd8b44:g:8ekAAOSwsn9cDxsH

I know some say the tool isn't necessary, but I'd rather use it than try to properly peen over the pin with a hammer.

Once the chain is done, I'm going to retime the injection pump (found the pump timing light for super cheap) and hopefully that clears up the rough running before we get it back in the car with a 5-speed

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.