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06-08-2021, 09:25 AM
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#1 |
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Registered User
Join Date: Sep 2019
Location: Dade City
Posts: 72
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turbo 400 plug bug
I don't know if this is the right place but here goes. I have a rebuilt turbo 400 that the PO didn't have the torque converter installed on the input shaft. I noticed that a few inches back on the input shaft a small hole that a bug has plugged with dirt. I do know that those plug bugs put spiders and such in the whole for food before plugging the whole. Does anyone know where that hole leads to in the shaft? I assume it leads to a hole in the center of the shaft but don't know how far back in the shaft it goes. I was going to try to use a pick to get the dirt out while using a vacuum cleaner on it. I don't want to install this tranny with that causing an oil flow problem. I don't want to but I would like to know if I need to pull the front pump to resolve the matter. Thanks for any help.
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06-08-2021, 10:25 AM
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#2 |
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Senior Member
 Join Date: Mar 2003
Location: Colfax-California
Posts: 8,678
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Re: turbo 400 plug bug
That hole goes all the way down the shaft to the center of the trans as an oil feed
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06-08-2021, 10:40 AM
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#3 |
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Registered User
Join Date: Sep 2019
Location: Dade City
Posts: 72
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Re: turbo 400 plug bug
Any way to blow it out from a port anywhere? If I can get it cleared enough for passage. Does that shaft come out with the front pump?
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06-08-2021, 12:12 PM
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#4 |
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Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,678
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Re: turbo 400 plug bug
Nope, it is pressed into a drum. If you pull the pump you will see a drum on top that sits into this drum with a band. You can try blowing air into the front cooling line fitting, but I doubt that will do anything. I don't think it would hurt to try
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06-08-2021, 12:16 PM
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#5 |
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Registered User
Join Date: Sep 2019
Location: Dade City
Posts: 72
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Re: turbo 400 plug bug
Which line on the tranny? upper or lower?
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06-08-2021, 01:04 PM
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#6 |
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Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,678
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Re: turbo 400 plug bug
Pretty sure it is the bottom one, top is return
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06-09-2021, 10:05 AM
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#7 |
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Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,320
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Re: turbo 400 plug bug
It's doesn't take long at all to take it down far enough to get to the Torque converter shaft feed. Half an hour tops. That's $50 shop time if you can get someone to do it.
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06-09-2021, 06:24 PM
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#8 |
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Registered User
 Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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Re: turbo 400 plug bug
2x Accelo, I would want to make sure it was right before I installed it. To much time and money to put it in and have a problem. How much does 2 gal. of tranny fluid cost now?
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06-10-2021, 01:54 AM
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#9 | |
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Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,320
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Re: turbo 400 plug bug
Quote:
It will take 2.5 gal or 10quarts if it's a shallow pan. Napa has it for $7.29 a quart. With tax is is over $80 in most places. I know the question was rhetorical but I had to do it. 
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06-17-2021, 12:36 PM
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#10 |
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Registered User
Join Date: Sep 2019
Location: Dade City
Posts: 72
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Re: turbo 400 plug bug
Update. I didn't know the shaft was hollow all the way front toward the back. The bug had plugged the 2 small holes by the stator end and filled to the front of the shaft. Also didn't know there were 2 holes there when I started digging. I did manage to clean it out and blow through the bottom line input on the tranny and blow the junk out the front. I think I'm good to go now, thanks for the input. It's not who you are, it's who you know.
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