Nothing major, luckly, but here's the story:
It was a beautiful day here in Pittsburgh yesterday, and I knew that the actuator on the bypass valve on the S/C was sticking a bit. I wasn't getting full boost under load. So I got a can of graphite lubricant and freed up the bypass valve actuator. I was then getting full boost.
I took the car out for a spin -- there's a very steep, straight hill near my house that's excellent for doing fast 1st and 2nd gear runs to redline. First gear pulled fine (except for the piggyback tune still being sucky) all the way to redline. Second gear pulled great up to 60 mph, and then I heard a noise from under the hood and lost boost. At the top of the hill at the stop sign, I stopped and when I started again, I heard screeching from under the hood.
I pulled off at a park enterance and popped the hood. The crank / alternator / water pump / supercharger belt was loose, but I didn't immediately see why. I drove home ~1 mile carefully with all the electrical stuff off and popped the hood again. It turns out that the top bolt that goes through the belt tension adjustment unit, through the bracket and into the alternator housing snapped off!
The remaining threaded part of the bolt is still in the alternator housing, and I'll have to put the car up on ramps, pull the lower alternator bolt, lower the alternator, then get the threaded part of the top bolt out. Once I put it back together again and replace the top bolt, everything will be fine.
It sucked, since it was such a nice day and I'd gotten full boost again. I'd only had it out for about 10 minutes after fixing the boost actuator before the bolt snapped. I was looking forward to driving around a bit in the nice weather.
Today it's raining like crazy, so it'll probably be a couple of days before I get it fixed. At least it was nothing expensive.
It was a beautiful day here in Pittsburgh yesterday, and I knew that the actuator on the bypass valve on the S/C was sticking a bit. I wasn't getting full boost under load. So I got a can of graphite lubricant and freed up the bypass valve actuator. I was then getting full boost.
I took the car out for a spin -- there's a very steep, straight hill near my house that's excellent for doing fast 1st and 2nd gear runs to redline. First gear pulled fine (except for the piggyback tune still being sucky) all the way to redline. Second gear pulled great up to 60 mph, and then I heard a noise from under the hood and lost boost. At the top of the hill at the stop sign, I stopped and when I started again, I heard screeching from under the hood.
I pulled off at a park enterance and popped the hood. The crank / alternator / water pump / supercharger belt was loose, but I didn't immediately see why. I drove home ~1 mile carefully with all the electrical stuff off and popped the hood again. It turns out that the top bolt that goes through the belt tension adjustment unit, through the bracket and into the alternator housing snapped off!
The remaining threaded part of the bolt is still in the alternator housing, and I'll have to put the car up on ramps, pull the lower alternator bolt, lower the alternator, then get the threaded part of the top bolt out. Once I put it back together again and replace the top bolt, everything will be fine.
It sucked, since it was such a nice day and I'd gotten full boost again. I'd only had it out for about 10 minutes after fixing the boost actuator before the bolt snapped. I was looking forward to driving around a bit in the nice weather.
Today it's raining like crazy, so it'll probably be a couple of days before I get it fixed. At least it was nothing expensive.