New vibration
 

Greetings,

I just had the injectors rebuilt by a Bosch shop, and replaced my engine mounts and the engine shock. Engine runs smooth as butter. My son drove it about a week with one injector shot and shredded the drivers side engine mount. I was just test driving it and seem to have a new vibration from about 25 to 30 mph and then it goes away. It is not present below 25ish nor above 30ish. Any ideas? My 83 300D has 257,000 on it and ZERO blowby.

Thanks!

vibrations at specific speeds, instead of rpm ranges, are usually driveline. Flex disk or center support bearing should be inspected.

How do you have 0 blow-by on an engine with that many miles?

Nice.

I guess the previous owners took good care of it. I have had it since 238,000 and the breather cap just sits there, only movement is from engine idle.