engine noise

I took delivery on a new CX2510 about a week ago. Other than screws rattling loose on the brush guard, it seems to run great, although I’m uncertain if a couple things are normal or not. The diesel noise is loud when the pistons fire; I expected that. But there is a marbles, bell ringing kind...

Today I went to go fuel up my tractor at the store at the end of my road (maybe 1/4 mile). When I pulled out onto the road in transport gear, as I accelerated I noticed the engine wasn't developing power as it should and I started hearing some loud and bad knocking from the engine. I'm just...

Hello! I am having some weird problems with the engine on my GC1720TLB, just did routine maintenance a few hours ago. It seems to run okay at idle but when I increase the throttle it sounds strange and is very smoky. Appreciate any tips or things to look for!

I have a 1993 Massey Ferguson 1020 gear driven 4wd tractor with 1600 hours on it. Yesterday while going to park it a sudden noise just started randomly. It sounds like pebbles bouncing around inside of the engine. It does it while idling, driving around, really any time the engine is running no...