I will be installing a timing chain in an OM621 engine which is basically the same as an OM616 and OM617 engine. I see riveting tools on eBay and Amazon which state they fit Mercedes W203 and W212 models, as well as 1998 and newer vehicles. These tools are shaped like a "C" and have a handle attached with other adapters included. They range in price from roughly $70 up to around $300.

My question is will these work with the older diesel engines? I don't know why there would be any major difference between the timing chains of the newer and older cars so don't see why they would not work. Has anyone had any experience using these type tools on the older engines? Thanks in advance.

Pelican sells tools and you can at lest use them as a reference.
The Crimping Tools have heads on them that you can interchange.

However, I don't know what is available for what.

But, it could be that the ones for the older Engines only come with the heads for that and the ones for the newer models might simply come with different heads.

Another way to tell is if the timing chains have the same part numbers.

One of the issues with the Tools is they are made by different makers. US makers Baum Tool and there is another. There is more then one European Maker and there is and the Mercedes marked ones are also made by various makers. So Parts between them are likely not interchangeable.

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84 300D, 82 Volvo 244Gl Diesel

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84 300D, 82 Volvo 244Gl Diesel

I bought several of that type of tool and none of them worked for those type of chains, despite being recommended for the application. I ended up learning how to peen them by hand and went that route.

One of the ones I bought worked for squeezing the links together but not for crimping. Not remotely.

-Rog