When I recently got my 62-413 running, I replaced the water pump as I didn't want or didn't know how good the old pump was. The first one I got had a hair line crack in it that my buddy helping spotted. Then the seconf one had a different number of blades in it. I found out the A/C water pumps had different number of blades. I can't remember what that number was, but that the three A/c units were differnt then the non A/C ones. Perhaps others members can shed a different light on it and that I just had different number of blades was a odd happening. At any rate, that's my story. Jerry Lindsay Seminole, Fl. Nice cool weather for a change. ----- Original Message ----- From: "christopher beilby" <thelastbestgenius@xxxxxxxxxxx> To: "tdcox 300aircleaners" <tdcox@xxxxxxxxxxxxx>; <chrysler300@xxxxxxxxxxxxxxx> Sent: Wednesday, November 10, 2010 2:58 AM Subject: RE: [Chrysler300] 300F Water Pump No one else said anything yet, so It might be total wrong, as it does not make sense even to me, but if it a new/rebuilt orig 60s motor, could it be post rebuild, you have now suddenly dislodged a heap of sludge/rust from the lower block areas that has broken away while motor out/dry, and this has blocked the flow somewhere - or else something non rust/sludge, like the thermostat is jammed shut?! Whatever the cause, it sounds like the pump is being overloaded, like the impellor is being 'turned off' by backed up/solid water?!! Check thermo and then also top of radiator tank to see all little flow holes, tops of tubes, are clear, as start points. Christopher in Australia - cool weather still amazing/weird for this time of late spring, locusts slowed/stalled by the cold nights, so southern winter grain crops still going great so far and harvest just anout to start abd run through to near xmas in some slower/cooler areas To: chrysler300@xxxxxxxxxxxxxxx From: tdcox@xxxxxxxxxxxxx Date: Tue, 9 Nov 2010 10:51:05 -0800 Subject: [Chrysler300] 300F Water Pump I traveled to the Chicago meet in my F convert, during which I threw at least two water pump belts. Upon arriving in Chicago, several guys that know a lot more than I do about the F engine noticed that the fan pulley was not lined up with the crank pulley. All suggested shimming out the fan pulley which we did by about 3/16". I drove home and all seemed well; no belts thrown and car ran fine. After arriving home, the engine was properly broken in and I began to increase the speeds I drove. Shortly thereafter, the water pump failed as I slowed down from about 4,000 rpms. I did have another water pump in the trunk and I replaced it. Within 50 miles, that water pump failed while driving about 60 mph on the interstate, taking out the radiator. So, I bought a NAPA replacement water pump, replaced the water pump with failed bearings, had the radiator repaired and installed, cranked it up and it idled nicely for about 30 minutes, at which time I shut it down. Upon start-up, the new NAPA water pump failed. I am at a loss at what to do. The belts are not too tight. My only thought is that shimming out the water pump may have put too much stress on the water pump with a fairly heavy fan/clutch assembly. Any other suggestions?? I can't afford another radiator rebuild and I am afraid to drive the car any distance. I can't understand why I could drive the car nearly 1,000 miles with the shimmed out pulley, yet I can't keep a water pump operating without the bearings failing. Help!!! [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/