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

Coolant Cross-over Line

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Old Jan 8, 2004 | 05:58 PM
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ibanez6rg's Avatar
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Coolant Cross-over Line

To my understanding, people just cut the metal part and then run a rubber hose back to the heads?

I'm not sure if I want to do that, so how do you get the lines off the back of the heads?

Old Jan 8, 2004 | 06:08 PM
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I took both the heads off the same time.
Old Jan 8, 2004 | 06:24 PM
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I guess you can just unbolt it from each head ....that is if you can get to the bolts. Youll need to get new washers when you put it back on.

What alot of people do, as you mentioned, is simply cut the line at a place that can be gotten to and then use a hose and clamps to reconnect them .....no big deal.
Old Jan 8, 2004 | 06:29 PM
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I went all the out and bought a new coolant cross over tube. It came with 2 banjo bolts and 4 crush washers.
Old Jan 8, 2004 | 06:51 PM
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What's the bolt size?
Old Jan 8, 2004 | 07:02 PM
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It's a special bolt with holes for the coolant to flow through.
http://www.97ta.com/misc_pic/misc70.jpg
Old Jan 8, 2004 | 07:08 PM
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Originally posted by AsianSensation
It's a special bolt with holes for the coolant to flow through.
http://www.97ta.com/misc_pic/misc70.jpg
You're a good man, I don't care what everyone else says about you. j/k

Looks like a 7/16s to me?
Old Jan 8, 2004 | 07:46 PM
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LOL...Didn't I already answer this question in your other thread?

Taking the heads off with the coolant crossover still bolted to them isn't a big deal. These heads are extremely light.
Just call up a buddy, offer him a few frosty beverages for a few minutes help.

You've just got to onbolt them. Once they're loose, one guy grabs one, the other grabs the second one, and you walk them to the front of the car.

Putting them on goes like this. Get the banjo fittings/crossover started in each head, but leave them loose (it would be a tough task to get them at the right angles because the heads sit at an angle on the block. Walk them on with your buddy, and once the heads are in place, tighten the banjo fittings down. They're not too hard to tighten in the cramped space, but I wouldn't want to try to get the fiitings started into the aluminum heads with so little room (can you say CROSSTHREAD).

This is actually EASIER than trying to get back there to tighten hose clamps....

Frank
Old Jan 8, 2004 | 07:48 PM
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BTW, I used a "Gear Wrench" to tighten them. Those things are worth their weight in gold.

Frank
Old Jan 8, 2004 | 08:00 PM
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I didnt have much trouble getting the bolts out.Just use a six point wrench.Dont remember the size.
Old Jan 8, 2004 | 08:01 PM
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i used a 15mm wrench on there. Got both of mine off pretty easily.
Old Jan 8, 2004 | 08:16 PM
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ratcheting wrench or wallmart wratchet thats got a really skinny head, the new bolts you buy have taller heads.
Old Jan 8, 2004 | 08:41 PM
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Originally posted by 12SCNDZ
LOL...Didn't I already answer this question in your other thread?
My other thread

Oh well, I just felt like making you work more.

*If i can't get the bolts off with the heads on, I'll just have someone help me.

Last edited by ibanez6rg; Jan 8, 2004 at 08:44 PM.
Old Jan 8, 2004 | 09:09 PM
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Originally posted by AsianSensation
I took both the heads off the same time.
ditto
Old Jan 8, 2004 | 09:13 PM
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They'll come off. 15mm is think is right, goes quicker with the gear wrench. Just be careful to grab the bolt so it doesn't drop down somewhere

I took mine off by myself and put them back on by myself (with heads on each time). You will probably need new washers.

Good luck.



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