No, I think the problem is leaves, acorns, dirt, rainwater, etc accumulating in DeLoreans that sit for extended periods of time. I also think there may well be a design flaw in the passenger side oil galley (too thin) since every PRV I've encountered with rot lost it on that side. BTW: Those real deep recesses are mounting bosses (upside down) for crankshaft bearings, if I remember correctly (I'm in DC and don't have access to Volvo literature at the moment). Won't ever rot through because they're totally solid underneath. BBTW: If antifreeze is so corrosive, what are we to do about our cylinder banks, which are nothing more than bathtubs of coolant? How about the aluminum tubing to and from the radiator? My expansion bottle is also aluminum (predates the stainless models). Isn't the water pump housing aluminum? FWIW: I threw away the steel heater core tube under my intake manifold in favor of rubber hose. I do have an adapter under there to join the 5/8" and 3/4" hoses. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@...> wrote: > > Glyptol is a good preventitive solution but the root cause is the > seals, hoses, and gaskets that leak old, corrosive coolant that > collects in those wells and corrodes the block. If any owner is > worried about this problem they should do a Master Water Pump Kit and > get in there and replace all those seals, hoses, and gaskets. While in > there it is a perfect opportunity to clean the wells and paint the > area with Glyptol for a little extra "insurance". After that the > coolant should be tested every year and replaced every 4 years. A lot > cheaper than having the block rot! > David Teitelbaum > vin 10757 > 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/