Dave - The only bolts that you have to be careful with are the steel bolts that are screwed into aluminum (grin). You need to be careful to avoid cross-threading any and all bolts, but especially the intake manifold bolts. They can be interesting. Any good penetrating oil is good. Many swear by PB Blaster. If you run the car, the thermal cycles can help work the penetrant into the fasteners (that's a good thing). It may stink and smoke a little, depending on where and how much you apply it. Always use anti-seize compound for reassembly on every bolt, and replace the various O- rings and gaskets to avoid a massive vacuum leak. Change the hoses out under the manifold unless they are nearly new. Other than that ... nothing to worry about. Toby Peterson VIN 2248 "Winged1" DeLorean Parts Northwest, LLC www.delorean-parts.com --- In dmcnews@xxxxxxxxxxxxxxx, doctorDHD@xxxx wrote: > I will be replacing my water pump soon and want to know if there are any bolts I have to be extra careful with. Should I use penetrating oil and if so what kind. Is it ok to use / run the car after applying the oil or will that make it worse by "baking it in"? > > Dave and 6530 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/