I had a similar issue with alternators too. First replacement I got caused my volt gauge to jump all over the place. Second one had a bad regulator from the beginning and cooked my Optima, (I wondered why my binnacle was so darn bright). Thrid one is working fine for almost a year now. I also had that same exact pulley you describe. I puchased Toby's custom one and it's perfect. I was told if you tighten the belt too much it will wear the bearings much quicker. Johnny 5518 AZ-D On 7/28/06, Rick Heile <rick.heile@xxxxxx> wrote: > > I can't believe I have this much bad luck or the vendors I am buying > my alternators from are selling me bad units. Here is my problem: > when I first got my D the bearings on the alternator were screaming, > so I knew I needed to replace it. Since I was putting a rather large > sound system in it I decided to replace it with a big capacity unit. > I had it installed by a Delorean mechanic so I know it was installed > correctly. After less than 3000 miles the bearings on this unit > literally blew out of the alternator. This was after all of the > talk about how large of an alternator you should have in the car so > I replaced it with a new 110 Amp unit. This lasted less than 600 > miles before the bearings went. > > I noticed that I do not have the cone shaped pulley on the front of > the water pump but one that bolts on that has two pulley grooves ( I > am running on the inside groove.). My mechanic says that I should > get a standard Volvo alternator to avoid this problem. What do all > of you think? > > Thank you, > > Rick > 3290 > > > [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/