Quote:
Originally Posted by HuskyMan
The monarks NAIL really really BAD in this 617. Kent over at mercedes source now says that sometimes the injector bodies are non-rebuildable. I believe he also says that monarks are somewhat nosier....I dunno, all I know is they are too LOUD for my taste.
They nailed so bad I finally pulled them out and replaced them with some bosch injectors I purchased off Ebay. Things have been much quieter ever since....
|
In my own experience with Monark nozzles in my 603, they are markedly louder than the Bosch until they break in. Mine weren't nailing, but it was a very loud "diesel knock". It took mine ~1500-2000 miles to settle in, but now they're quieter than the Bosch were. Not sure what it is that causes the noise, I unscientifically suspect it's the tight tolerances having to "wear in".