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A couple of details here....I think the original post asked about a '60 trans. I don't know if my follow up will apply. On the '57's there are both air cooled and liquid cooled 3 speed torqueflites. My 300C has the cooler and my Dodge has the vented bell housing and finned torque converter. The Dodge trans has 2 threaded fittings on the case that look to be liquid cooling connections. I thought it'd be an easy thing to add the lines and rad cooler to this air cooled trans. Not so according to my trans guy. I'm going to muck up his description but he says while one of those fittings supplies pressure the other will not work as a return line. Something has to be drilled out in the trans for that to work. He says it could be done but only during a rebuild. Maybe someone with more trans experience can provide details. Jim Krausmann Detroit ----- Original Message ----- From: Eastern Sierra Adjustment Svc To: L-FORWARDLOOK@xxxxxxxxxxxxx Sent: Mon, 9 Feb 2009 20:20:29 +0000 (UTC) Subject: Re: [FWDLK] TRANS COOLING LINES If 'you' do install an external trans cooler, the air-cooled (finned) torque converter will provide even more cooling effect, which is a good thing. My car is at a transmission rebuilder, presently, and I don't yet have a postmortem on the failure of its retrofitted liquid-cooled trannie/system (which has the OEM cooler installed in the radiator's bottom tank), but, its replacement T/Q will be a finned (air-cooled) unit. Back when (10+ years ago) I changed the trannie to a liquid-cooled unit, I had the liquid cooled (non-finned) T/Q modified internally for higher stall speed (less creep, in Drive ) , and that resultant higher heat generated might have been a contributing factor in the loss of forward gears that I reported upon, a couple months ago. Trans-X appears to have life-supported the trannie, for about a month. The new finned T/Q will just be left, set-up for Stock operation, and I will pussy-foot the car, now, as the $2K(+) O/H will not be fun to pay for. Neil Vedder Jason Rogers wrote: > By all means do NOT plug those cooling port lines from the tranny! They are there for a reason and need to be utilized - such as how others suggested getting an aftermarket cooler to put in front of, or behind, the radiator (I say behind because, if that cooler is the only source of oil cooling, it need not be exposed to frigid air temperatures and thus overcool the tranny...but our cars tend to be fair weather cars so putting the cooler in front of the radiator wouldn't hurt.) > > That vintage of transmission did not have a locking torque converter clutch, so there's always a level of slip within the torque converter. Slip, under propulsion, creates heat - and can create high oil temperatures very fast. Yes, the earlier transmissions were air-cooled, but I speculate that the automakers learned about the need to keep the oil cooler - and that combined with ever more heavy cars and more powerful engines, they said, "hmm...looks like we need to have a more reliable means of cooling our trannys than with air fins." > > Jason. > > ************************************************************* > > To unsubscribe or set your subscription options, please go to > http://lists.psu.edu/cgi-bin/wa?SUBED1=l-forwardlook&A=1 > > ************************************************************* To unsubscribe or set your subscription options, please go to http://lists.psu.edu/cgi-bin/wa?SUBED1=l-forwardlook&A=1 ************************************************************* To unsubscribe or set your subscription options,
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