Loose timing belt

[90-GST]

I've searched and couldn't find anything on this particular issue, so I'm sorry if it is a frequent question.




I recently replaced the head on my car, and timed it correctly. The car starts and runs, but has an odd noise coming from the timing area. When watching the belt as it runs, it starts to vibrate and looks to be loosened. It happens if I rev the car up a bit, or when I let it run for a minute or two. I'm particularly talking about the spot between the tensioner pulley and the exhaust cam gear. The belt is tight when the car is off, but once it is running, it starts to loosen.


A friend adjusted the tensioner pulley before the head was replaced, and I haven't touched it since because I don't have the tool to adjust it. I'm thinking that when the engine is running, the pressure from the belt is pushing the tensioner in and that I need to replace it, but don't want to throw money at it just to find out it wasn't necessary. Any opinions?

 

[BLINKY619]

is it tight enough... did you adjust it right

 

[twalters09]

personally it sounds to me like you do need a new tensioner, you dont want your belt walking off eventually, if it seems to be loose running and it vibrates a lot and makes noise im going with you definatly need a new tensioner

 

[BeeRacer930]

a new new tensioner should do the trick

 

[90-GST]

personally it sounds to me like you do need a new tensioner, you dont want your belt walking off eventually, if it seems to be loose running and it vibrates a lot and makes noise im going with you definatly need a new tensioner

That's another thing. It looks like the belt is slightly walking, but it doesn't move sideways enough to really tell yet.