Rob,The pressure is provided by a front pump in the transmission which is pumping whenever the engine is running and provides approximately 90 pounds line pressure for valve, clutch, and band actuation and circulation of transmission oil for lubrication and cooling. If your transmission works normally then it sounds like the front pump is OK. (Chrysler transmissions back then also had rear pumps which pumped when the propshaft turned.)
Burt Bouwkamp----- Original Message ----- From: "Rob van der Es" <R.vdes@xxxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Thursday, November 29, 2007 3:47 PM Subject: Re: IML: 1960 torqueflite question
Hi Paul, Your diagnose is the same as the previous one from Aeyn! Always nice to have consensus :)One question, how is the pressure built up so that the fluid can be transferred through the cooler lines?Is there a pump inside the tranny, especially for this purpose.Or is the pressure simply "stolen" from one of the main pumps in the transmission?Since the tranny is working OK I guess that the pumps inside are working correct. That said, only the cooler lines could be at fault. Or there is a special pump for the cooler lines that ain't working properly?Or do I have to check those two valves I mentioned previously (regulator and converter valve), if so where are those located and how do you check them for proper working?Thanks, Robert----- Original Message ----- From: "PAUL WENTINK" <randalpark@xxxxxxx>To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Thursday, November 29, 2007 6:27 PM Subject: Re: IML: 1960 torqueflite question There should be fluid running through the lines. Before adding an external cooler, I would want to know why there was no fluid in the lines. The radiator cooler will work fine if the fluid reaches it, so at this point, I would not bypass it yet. As long as the fluid is clean there has been no damage so far. That could change quickly on a long drive on a hot day. The external cooler is a good idea to prevent ruining the transmission should the engine overheat. I have had this happen on another brand of car, where a good running engine that simply ran on the hot side all the time ruined the transmission while the engine remained top notch. In that case, I believe that the built in transmission cooler was inadequate to begin with. This problem is not inherent to a 1960 Imperial. I suspect blocked or kinked lines. Get underneath and do a visual. The trouble should be easy to spot. If not, you may have to do some digging. Paul W. -----Original Message----- From: Rob van der Es <r.vdes@xxxxxxxxxxxxxxx> To: mailing-list@xxxxxxxxxxxxxxxx Sent: Thu, 29 Nov 2007 6:07 am Subject: IML: 1960 torqueflite question Hi List, Last month I pulled the radiator of my car to have it re-cored. So far, so good. The radiator is like new again but something is worrying me.. When I unscrewed the cooler lines from the radiator I noticed that no ATF was dripping out. I also expected a flood of oil coming from the cooler unit on the radiator but nope.. Ofcourse I am aware that this could be a dangerous situation for my tranny! Heat is one of the biggest enemies I am sure. So what could be wrong here? There is almost no dripping from the cooler lines while they are hanging free now (maybe that is logical, cause the engine isn't running so no pressure will be built up). Ofcourse the cooler lines could be blocked, that would be the most obvious reason. As soon as the weather permits I will remove those cooler lines from the tranny and I will clean them out then with solvent and airpressure. But if the lines are open, what other options do I have to check for? On the repair pages of our website I noticed that member Philippe mentioned that when you have cold oil cooler lines (and thus no oil is flowing through those lines) the regulator or the converter valve might be stucked. Philippe was talking about a 57 torqueflite, does this also makes sense for a 60 torqueflite? Btw, the tranny is still shifting perfectly through all gears, nice gentle shifts (but not too soft) that only are getting a little firmer when the engine and tranny are at operating temperature. The shifts are smoother with a cold engine, what could be explained by the fact that no oil is flowing through the oil cooler. The oil is clean, pink, and smelling fresh btwn (not burned). Any thoughts what might be wrong here? Thanks, Robert 1960 Imperial Crown----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please replyto mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to iml.webmonster@xxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm ________________________________________________________________________ More new features than ever. Check out the new AOL Mail ! - http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/text.htm?ncid=aolcmp00050000000003 ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. 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