I was just poking around my engine bay. I saw the slot on the timing belt cover and i took a peek inside.

With the engine running i looked at it again and seen the belt moving (as it should) but I also noticed it looked to be wobbling.. is this normal to have a slight wobble on the belt?

when i revved it the slack went away but when i let off it was even more slacked then tightened up again..

I'll try to get a video of it...

thoughts?

 

the tensioner?

 

Well if the Belt hasn't been replaced in a long time, then I can guess it's both theworn belt and the loose tensioner.

 

that was my first though as well.. but is it normal to have a little wobble in a idling engine's belt?

or a streched belt?

has 50,000km on it. (approx)

 

my old d15b2 with 200 some thousand miles had a broken tensioner, so it had like an INCH of freeplay on the belt. you could make it jump a tooth by hand with the cover off, but driving i kept the cover on, and try as i might, i couldn't get it to jump a tooth, because the cover didn't give it enough clearance. (while trying to get it to jump, i even bounced it off the rev limiter sometimes)

but, still, if it's a motor you care about, replace the belt and tensioner.

i just wanted to see some carnage with that motor, i wanted to kill it before i put my d16a6 in, but it never died. the tranny developed a leak and started to make scary noises, so i swapped it out.

on my d16a6, it had a timing belt replacement about 20k ago, and the belt is nice and tight.