convertor stall problem - Page 2

ss3011 · 08-03-2010, 07:30 PM

A sprag or roller clutch inside the converter is difficult to check for damage without disassembly. The inner and outer races will show skid marks, that may hold fine using hand power, but will slip or skid under engine torque. What type of transmission do you have. Some stator shafts are a seperate part that is press fit into the pump cover, but others like a 200 THM are a one piece part .

astikhossw · 08-04-2010, 07:24 AM

No Allen i just tried to turn it by hand,and yes he said the convertor was apart and there was no problems with it.The trans is a 1:82 pro tree powerglide.

Alan Roehrich · 08-04-2010, 08:05 AM

A good converter builder will usually spot a bad sprag with the converter apart. Normally, if there is a sprag problem even suspected, they just replace the sprag since the converter is apart, because a sprag isn't as expensive as the labor to put it in.

It should not be a problem to just swap the pump out in a PowerGlide, you don't even have to pull the pan, you just have to check the end clearance. I've swapped them in the pits, with the transmission hanging from a vise by a big Phillips screw driver.

It is almost a certainty that either the sprag is bad or the stator shaft is slipping. However, ordinarily if the stator shaft slips very much, it will usually spin by hand.

08-03-2010, 07:30 PM	#11
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: convertor stall problem A sprag or roller clutch inside the converter is difficult to check for damage without disassembly. The inner and outer races will show skid marks, that may hold fine using hand power, but will slip or skid under engine torque. What type of transmission do you have. Some stator shafts are a seperate part that is press fit into the pump cover, but others like a 200 THM are a one piece part .

08-04-2010, 07:24 AM	#12
astikhossw Member Join Date: Jul 2008 Location: moreno valley Ca Posts: 266 Likes: 2 Liked 20 Times in 9 Posts	Re: convertor stall problem No Allen i just tried to turn it by hand,and yes he said the convertor was apart and there was no problems with it.The trans is a 1:82 pro tree powerglide.

08-04-2010, 08:05 AM	#13
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,105 Likes: 1,564 Liked 1,789 Times in 408 Posts	Re: convertor stall problem A good converter builder will usually spot a bad sprag with the converter apart. Normally, if there is a sprag problem even suspected, they just replace the sprag since the converter is apart, because a sprag isn't as expensive as the labor to put it in. It should not be a problem to just swap the pump out in a PowerGlide, you don't even have to pull the pan, you just have to check the end clearance. I've swapped them in the pits, with the transmission hanging from a vise by a big Phillips screw driver. It is almost a certainty that either the sprag is bad or the stator shaft is slipping. However, ordinarily if the stator shaft slips very much, it will usually spin by hand. __________________ Alan Roehrich 212A G/S