I have both Darryl's pulley and Volvo pulleys. Rear groove dimensions are indeed indentical. Note that Volvo pulleys have a front groove that might interfere with a belt routed around an upper A/C idler pulley. Since I'm running the lower A/C idler pulley only (PO mod), can't check that out (doesn't interfere on my car). Rear groove of course ends up the same distance from the block, otherwise you couldn't route the belt around the crank pulley. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "darryl" <darryl@xxxx> wrote: > To clear this up a little - at the time I designed the aluminum bolt-on water pump pulley, nearly 18 years ago, DeLorean water pumps were being sold for $240 without a pressed-on pulley and with no warranty. You had to remove the pulley and re-install it yourself, often ruining it (and new ones were not available). At the same time you could go to the closest auto parts store and get the identical pump, only with a bolt flange for a bolt-on pulley, for $90 - $130, usually with a lifetime warranty. (There is no flange to be pressed on, it's already there; there are no holes to tap, its the right pump.) I just took a stock DMC pump with the pulley on it and had new bolt-on billet aluminum pulleys made that had the identical diameter and offset as DMC used. That way the customer had the option of purchasing a genuine DMC pump, or getting a pulley and locally sourcing a Volvo-type pump with a better warranty. > > Today the market may have changed and replacement pumps may be available from the vendors with the pulley pressed on. But if you want something a little different, and less expensive, check these hand-crafted beauties out. They are now available from DeLorean Parts Northwest at www.delorean-parts.com. > > > Darryl Tinnerstet > (formerly Specialty Automotive) > McCleary, WA > (still lurking, so watch what you say...) > 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/