Sergio Santos Posted March 21, 2020 Share Posted March 21, 2020 Hello everybody ,start leaking very bad any way I show a video here ? Link to comment Share on other sites More sharing options...
JohnD1956 Posted March 22, 2020 Share Posted March 22, 2020 Post the video to You tube, and then you can add a link here in a new post. 1 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 22, 2020 Author Share Posted March 22, 2020 Thank you , I ll try now 1 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 22, 2020 Author Share Posted March 22, 2020 (edited) http://YouTube.com/imsaint007 Dynaflow Leak Buick Roadmaster Edited March 22, 2020 by Sergio Santos (see edit history) Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 22, 2020 Author Share Posted March 22, 2020 57 minutes ago, Sergio Santos said: http://YouTube.com/imsaint007 Dynaflow Leak Buick Roadmaster Link to comment Share on other sites More sharing options...
JohnD1956 Posted March 22, 2020 Share Posted March 22, 2020 whoa boy! That's ugly! Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 22, 2020 Author Share Posted March 22, 2020 I know , any sugestions ? Link to comment Share on other sites More sharing options...
JohnD1956 Posted March 22, 2020 Share Posted March 22, 2020 (edited) Either the torque converter cover seal or the front pump seal. Edited March 22, 2020 by JohnD1956 (see edit history) Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 22, 2020 Author Share Posted March 22, 2020 hope is not a major job just replace gaskets in place 👍 Link to comment Share on other sites More sharing options...
Bhigdog Posted March 22, 2020 Share Posted March 22, 2020 20 minutes ago, Sergio Santos said: hope is not a major job just replace gaskets in place 👍 Very very doubtful you won't have to remove the trans. ...............................Bob Link to comment Share on other sites More sharing options...
JohnD1956 Posted March 22, 2020 Share Posted March 22, 2020 You might remove the front inspection plate and try to tighten the bolts holding the torque converter cover. But it could help the community if you respond to a few questions first: 1- have you had this car long? And if so, is this a recent development? 2- does the transmission work in forward and reverse? 3- have you put stop leak products in the transmission in the past? 1 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 22, 2020 Author Share Posted March 22, 2020 John , I just purchased the car march 10 2020 , the seller told me that it had a small leak and he just keep adding oil , on he's drive way I didn't see signs of oil leaks , the car drives and shifted well and is in very good conditions with 46.560 original miles , trailer it from Jacksonville to my home in FT Lauderdale next day drove it about 2 -3 miles no problems , let the car running in idle to charge battery and notice the oil pouring from transmission , ask the seller he sad he never had that kind of leak , I did not added any thing to stop leaks don't know if he done in the past . Link to comment Share on other sites More sharing options...
NailheadBob Posted March 22, 2020 Share Posted March 22, 2020 Sergio, I agree with John, remove lower (flywheel) inspection cover and look with a flashlight or (inspection camera then you could video tape it, if you don't have one you could rent it from home depot) to see where leak is coming from. If you replace front pump seal I would also replace bearing/bushing for input shaft because they wear and shaft will have up and down play that will contribute to your leak, that will need to remove transmission from vehicle. Also inspect the torque converter end that make contact with front pump seal that it is not scored up, that would damage the replacement seal. group # 4.224 seal, front pump oil part # 1171657 group # 4.123 bearing/bushing input shaft part # 1168262 I hope this helps you. Bob 1 Link to comment Share on other sites More sharing options...
old-tank Posted March 22, 2020 Share Posted March 22, 2020 4 hours ago, JohnD1956 said: Either the torque converter cover seal or the front pump seal. You would replace both when working on the transmission. The transmission will need to be pulled from the car. Your service manual will give details. I did this on my 55 last year: HERE 3 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 23, 2020 Author Share Posted March 23, 2020 Wow ! I see it now , to remove the transmission you need to remove the rear end , big job some shops gave me the estimated from $1,500 to $3,000 including parts , that is the going price for this job ? Link to comment Share on other sites More sharing options...
old-tank Posted March 23, 2020 Share Posted March 23, 2020 You can remove the rear end, but I just pull it back. I was quoted a price like that plus $1000 a day on the lift if not finished in one day...I did it myself! 1 Link to comment Share on other sites More sharing options...
NailheadBob Posted March 23, 2020 Share Posted March 23, 2020 I agree with old-tank, just pull the rear end back a little for the transmission to clear the torque tube, when transmission is being lowered out of car. I did this in a garage, I put 4 jack stands under car, to support car by FRAME, then used a cable winch puller,(see harbor freight haul-master cable winch puller) and wrap one end around end of torque tube and the other end around rear bumper brackets OR rear frame, that bumper brackets attach to, then ratchet it back. 1 Link to comment Share on other sites More sharing options...
Mark Simmons Posted March 24, 2020 Share Posted March 24, 2020 I'm with JohnD1956 on this, it looks like a pressure leak (ie) the front pump seal. Shut the motor off and see if the flow slows down. Either way the transmission has to come out. Don't forget to check and replace the pilot bushing before the transmission is reinstalled. Dropping one of these Dynaflows is only as hard as one makes it and is not as bad as it seems. Read up on it and be safe and take your time doing it . Just my 2 cents worth. 2 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 24, 2020 Author Share Posted March 24, 2020 Very encouraging , Mark I know can be done for less than the transmission shops quoted , yes on your question when I shutdown the engine , fluid drips less than stops . Link to comment Share on other sites More sharing options...
avgwarhawk Posted March 24, 2020 Share Posted March 24, 2020 (edited) 16 hours ago, Sergio Santos said: Wow ! I see it now , to remove the transmission you need to remove the rear end , big job some shops gave me the estimated from $1,500 to $3,000 including parts , that is the going price for this job ? It is not that bad. I have pulled both rears from my Buicks twice each and by myself. Did not need a come-along or an special tool to remove the rear axle assembly . Not sure if you have the facility to do the work yourself. It is not that difficult. However, that transmission is a heavy one. Small trans jack will be very helpful. Edited March 24, 2020 by avgwarhawk (see edit history) 1 2 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 24, 2020 Author Share Posted March 24, 2020 wow! Twice you must be an expert by now , I don't have the facility now I may have to pay a transmission shop. Link to comment Share on other sites More sharing options...
avgwarhawk Posted March 24, 2020 Share Posted March 24, 2020 45 minutes ago, Sergio Santos said: wow! Twice you must be an expert by now , I don't have the facility now I may have to pay a transmission shop. I know each wrench and socket size required to move the rear axle on my 54 and 60. I do mine in my garage. Please get a repair manual for the garage that is willing to do the work. Kits for the transmission rebuild/or just the front seal are available. 1 1 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 24, 2020 Author Share Posted March 24, 2020 Thanks Chris, for the advice Link to comment Share on other sites More sharing options...
Mark Simmons Posted March 24, 2020 Share Posted March 24, 2020 One last piece of advice Sergio. If you do decide to take it to a shop or transmission shop take it to one that understands and has worked on Dynaflows(more than a couple). Most shops today imploy guys young enough that they weren't born before the Dynaflow transmission ceased to be. I've run into this problem working with some shops that I've tried to do business with. As mentioned above get a manual and read it so YOU have a working knowledge of what the job takes and what it does not. Finally if you lend the shop your manual be sure it comes back with the car. Good Luck whichever way you choose!!! 3 Link to comment Share on other sites More sharing options...
Sergio Santos Posted March 25, 2020 Author Share Posted March 25, 2020 Yes Mark I agree with you ,that’s the reason I’m reluctant to take to any transmission shop , I’m making lots of questions and trying to get some recommendations before I bite the bulet. youtube/saint007 Buick 1950 Dynaflow leak Link to comment Share on other sites More sharing options...
60FlatTop Posted March 25, 2020 Share Posted March 25, 2020 Sergio, from your YouTube I see you are in Brazil. Here are two car clubs that Old Cars Weekly listed. Contact them to tap their knowledge of a shop that could possibly help. They are not Buick specific but may broaden your local support group. All Eras Youth Auto Club, R. Cardeal Joseph Cardjin I66, 13063-430 Campinas S.P., Brazil. Lillian Ohswald. Antique Automobile Chevrolet Club of Brazil, R General Ataliba Leonel. 573 02033 000 Sao Paulo SP, Brazil. Claudio Borrego. Be sure to change and flush the rear end lube on your car before you start driving it. If it hasn't been driven much over its life it can build up a lot of condensation and the bearings won't take the water. That's a commonly overlooked and unnoticed problem. Bernie Link to comment Share on other sites More sharing options...
Kestrel Posted March 25, 2020 Share Posted March 25, 2020 Before you start pulling the tranny, did you check to see if either of the 2 torque converter drain plugs are loose ? Remove the bell housing cover and you'll see them, 180 degrees apart. Maybe that's the leak source, if you're lucky. 1 1 Link to comment Share on other sites More sharing options...
john compono Posted December 23, 2022 Share Posted December 23, 2022 I have a 1950 Buick roadmaster and know what your going through with the leaking transmission. what I did to avoid anymore problems I pulled it out and replaced and rebuilt everything to avoid other problems later on. its like having a new tranny. Link to comment Share on other sites More sharing options...
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