- Location
- Near Rochester NY
1990 XJ 4.0 AW4... I have been chasing a squeak for the last month. I thought it was fixed when I replaced the water pump 3 weeks ago. Saturday the squeak came back and after listening for a while, I replaced the idler pulley, but afterwards I was sure it was coming from the water pump. So, off to NAPA for another pump. The problem was back after about a half hour of driving. The alternator is 6 months old and the problem is definately not there.
When I look at the belt from underneath, I see there is only about 1/8 inch between the rear edge of the belt and the timing cover. I looked at my neighbor's 1988 XJ and it has about 3/8 inch clearence. The front of my balancer is even, meaning the front edge of the inner steel hub is flush with the front edge of the outer steel ring, as was my neighbor's. It also looks like the belt is riding at the rear of the fan clutch pulley, which is the next part downstream from the harmonic balancer.
What is this thing the fan clutch is bolted to, is it just another idler assembly with an internal bearing? Do they fail and make a noise like this?
If you have a 1990 XJ, can you tell me how much distance you have from the rear of your belt to the timing cover? Is there a spacer behind the harmonic balancer the previous owner could have lost?
TIA
When I look at the belt from underneath, I see there is only about 1/8 inch between the rear edge of the belt and the timing cover. I looked at my neighbor's 1988 XJ and it has about 3/8 inch clearence. The front of my balancer is even, meaning the front edge of the inner steel hub is flush with the front edge of the outer steel ring, as was my neighbor's. It also looks like the belt is riding at the rear of the fan clutch pulley, which is the next part downstream from the harmonic balancer.
What is this thing the fan clutch is bolted to, is it just another idler assembly with an internal bearing? Do they fail and make a noise like this?
If you have a 1990 XJ, can you tell me how much distance you have from the rear of your belt to the timing cover? Is there a spacer behind the harmonic balancer the previous owner could have lost?
TIA