GA16i timing chain rattle after warm up
Hello there my dudes
My '89 GA16i seems to have some chain rattle problems. It basically rattles real bad after warming up. It used to be quiet months before, but even then I've been told that it sounds like some metaly noise, probably chain related, coming from the engine. But it was barely noticable so I didn't care about it much.
But lately it started rattling real bad. Even after a cold start it sounds a bit like an old tractor, but it's relatively quieter. But after warming up it definitely becomes chain rattle, you can hear the chain starting top hit the inside of the chain cover, louder and louder as the engine slowly warms up, until it becomes a constant noise.
The whole timing chain kit was replaced like 2 years ago by the previous owner, so shouldn't it still be in good condition? Isn't it too early for any part of it to fail? I suppose the chain or the guards shouldn't go bad only after 2 years, so maybe it's the tensioner that failed? I was thinking it may worth a shot to replace only that first and see if it fixes it, since as far as I know, you can replace that from the outside, without having to take the engine apart. It's like simply bolted onto the side of the engine? Can anyone confirm if that's true?
Also even if any of the parts failed, while is the rattle worse after warming up? I was also wondering if it may be simply oil related? Like maybe as the oil warms up and the tensioner gets blocked by some sludge or something? Or I also read a story where a tensioner weren't bolted on tight enough, so after warming up the warmer oil could leak over a bolt and therefore not go through the piston in the tensioner, or something like that.
Does any of these ideas make sense to anyone? Should maybe I simply try an oil change first, before I start ordering expensive stuff?