LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

TB Bypass 94 clarification

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Old Jul 3, 2003 | 03:31 PM
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slmdgmc's Avatar
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TB Bypass 94 clarification

Just wanna make sure I am doing this right. I have no hoses on my engine right now so I need to do this.

Block off both the drivers side and pass side nipples (only one on drivers side, bottom one on pass side), and run the metal pipe from the back of both heads into the radiator overflow line, or the rad itself?

Last edited by slmdgmc; Jul 3, 2003 at 03:35 PM.
Old Jul 3, 2003 | 03:34 PM
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Hrm... I'll go look at mine in a sec, but all you have to do is take the line off the driverside, and off the passanger side, then run them together... Yeah, you should block the holes off too.
Old Jul 3, 2003 | 03:36 PM
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I had to edit it. Does the line that runs to the back of the heads need to be in the radiator or just in the overflow line?
Old Jul 3, 2003 | 03:38 PM
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The lines that connect to the TB need to connect to each other.
Old Jul 3, 2003 | 03:40 PM
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Go to my web page. I have a how to that I did on my 94 Formula.
Old Jul 3, 2003 | 03:43 PM
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Originally posted by slmdgmc
I had to edit it. Does the line that runs to the back of the heads need to be in the radiator or just in the overflow line?
It goes to the radiator.
Old Jul 3, 2003 | 03:44 PM
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OK thats what I was thinking, but where do the lines go that connect together? Do they both run to the radiator? See I am putting this motor into a truck and i dont have anything to go on.
Old Jul 3, 2003 | 03:46 PM
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So basically for me I need to block off the TB inlet and outlet and run a line from the hose going to the back of the heads into the radiator and I am done.
Old Jul 3, 2003 | 03:54 PM
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Originally posted by slmdgmc
So basically for me I need to block off the TB inlet and outlet and run a line from the hose going to the back of the heads into the radiator and I am done.
Bro, really. Go look at my web page. It should answer all your questions. Like I said it was done on my 94 Formula.
Old Jul 3, 2003 | 03:54 PM
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The two hoses that are off the TB, connect them together and you're done.
Old Jul 3, 2003 | 03:55 PM
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Basically. I did this "mod" at two o'clock in the morning, took about 5 minutes, lol.
Old Jul 3, 2003 | 03:59 PM
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Aight, lemme make this clear. I have no hoses! All I have is nipples coming from the TB. The line from the back of the heads is coming out the pass. side and out the front of the motor, then it goes from hard line to rubber, then its cut off. I am trying to make sure I have this right so that coolant is going to the right places. I am running completely new lines from the radiator to the motor.

Blocking off the heater core also. Blocked off the oil cooler.

The nipple coming out the bottom of the drivers side waterpump was blocked off for the oil cooler (is that right)>

The only nipple left on the pass side waterpump should lead from the heater core, therefore I am going to run to the radiator.
Old Jul 3, 2003 | 04:11 PM
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Seeing how you have no hoses the bypass is finished! Just don't connect any coolant hoses to the TB!
Old Jul 3, 2003 | 04:13 PM
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Ok thats what i thought, just need to connect a hose straight to the line that leads to the back of the heads from the radiator and that part is done.
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