torque converter vs front pump

[Skiddy]

what would make the torque converter take out the front pump in the tranny. have checked end play in the crank and there is none. this is on a new engine,flywheel, rebuilt tranny, all bolts were still tight. not in a eb but still a 5.0 not sure of the tranny (93 mustang)

 

[71broncman]

If the tranny was just installed, the problem might be the converter was not fully seated in the trans. That will take out the pump as soon as it's started (don't ask me how I know this). The converter needs to drop in 3 distinct times while turning to seat it. It's a bummer to have to pull the trans and have it reworked. Mark

 

[Skiddy]

good point that is kind of what i was thinking. btw not mine just trying to help him out

 

[gearida]

If the convertor was dry or it's shaft was dry, but probable cause is not being seated.

 

[Viperwolf1]

If the tranny was just installed, the problem might be the converter was not fully seated in the trans. That will take out the pump as soon as it's started (don't ask me how I know this). The converter needs to drop in 3 distinct times while turning to seat it. It's a bummer to have to pull the trans and have it reworked. Mark

X2. If you have the converter studs seated in the flexplate and then have to force the engine and trans together you've just ruined the pump.

 

[VT_Don]

re: "what would make the torque converter take out the front pump"

1. excessive converter OAL

2. converter runout

re: "The converter needs to drop in 3 distinct times" huh?

 

[BRONCO26]

when you bolt the eng and trans together make sure you can wiggle the converter studs in the flywheel very freely if not the conv. is not seated just like they said earlier.

 

[Broncobowsher]

When you tighten the nuts holding the converter to the flexplate, it should pull the converter to the flexplate. If there is no slop between the converter and the flexplate (with the nuts/bolts off) then the converter isn't seated correctly into the transmission. You should always be able to remove the fasteners and push the converter into the transmission a little and feel it bottom out.

FYI I found that typical Ford torque converters sit right at an inch deep past the front of the transmission case when properly installed.

 

[wpaeb]

Our transmission guy told me " if you can get your fingers behind the converter, It's not in yet".

 

[Viperwolf1]

FYI I found that typical Ford torque converters sit right at an inch deep past the front of the transmission case when properly installed.

I put a straight edge across the bellhousing and make sure the end of the converter studs are at least 1/2" inside.

 

[67Stallion]

Like 71broncman said, did the same the day before a race on my race bronco, talking about a bummer missing a racing weekend!

 

[av bronco]

the best Ive ever userd.
www.mikestransmission.com

 

[Bronco4x4]

Check to see if the converter drain plug went through the flexplate. Some older flexplates only went on one way (no multiple drain plug holes).

 

[Skiddy]

If the convertor was dry or it's shaft was dry, but probable cause is not being seated.

i think we have winner, i think he told me he did start it up dry guess he got in a hurry to hear it run, young 19 yr old grasshopper will learn.
thanks for all the help guys

 

[VT_Don]

Please explain in detail, exactly how the pump fails when a "dry" converter is started.