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Old 09-07-2009, 11:06 PM   #1
nmikmik
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1998 SW2
Default Doing the radiator replacement on 98SW

I recently got this 98 (my first Saturn) from a guy that could not start it - starter was just frozen solid....
I am guessing I have a typical radiator leak from just below the top transmission line as it enters the radiator. Got to the part where I need to remove the lines & of course they are on there pretty tight. Someone "borrowed" my flair nut 13mm wrench, so I either need to find one and try again or cut the lines and replace them or put extension hoses over the cuts.
I also was thinking of installing an external transmission cooler (i already have a small one from previous nonmaterialized project) but I have a hard time finding a spot where it would go in easy and not interfere with anything else.
Any suggestions or maybe someone already done it and have a procedure for me to follow?
btw, i am guessing that transmission line is somehow vibrates a little or in some other way puts too much stress on the radiator housing, so even adding a couple of pieces of hose with clamps could be beneficial as well.

Thanks!

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Old 09-08-2009, 12:09 AM   #2
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Default Re: Doing the radiator replacement on 98SW

Hoses are about 20 each from the dealer. Its best if you can get them off.

Search transmission cooler and you'll see some posts By barnowl. Actually I think he wrote a how -to so check the library.

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Old 09-08-2009, 12:22 AM   #3
nmikmik
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Default Re: Doing the radiator replacement on 98SW

thanks man,
I knew I'll find you here

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Old 09-08-2009, 11:24 AM   #4
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Default Re: Doing the radiator replacement on 98SW

Quote:
Originally Posted by nmikmik View Post
Any suggestions or maybe someone already done it and have a procedure for me to follow?
Right on the front of the radiator. Thats where I always put them.

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Old 09-08-2009, 12:16 PM   #5
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Default Re: Doing the radiator replacement on 98SW

Take the line sout of the transmission and remove them with the radiator, then deal with them with the radiator out of the car. You don't need anything except fingertips to release the connectors on the transmission where the lines go in.

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Old 09-08-2009, 12:25 PM   #6
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Default Re: Doing the radiator replacement on 98SW

Quote:
Originally Posted by Squareback View Post
Take the line sout of the transmission and remove them with the radiator, then deal with them with the radiator out of the car. You don't need anything except fingertips to release the connectors on the transmission where the lines go in.
Then put the ends of the tranny lines (radiator side) in a vise (if you have one) and spin the radiator. This method works pretty well if you don't have the proper flare-nut wrench or if you've already rounded off the nuts. Just don't tighten them up too much in the vise or they'll end out out of round and leak.

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Old 09-08-2009, 02:15 PM   #7
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Default Re: Doing the radiator replacement on 98SW

Quote:
Originally Posted by nmikmik View Post
I recently got this 98 (my first Saturn) from a guy that could not start it - starter was just frozen solid....
I am guessing I have a typical radiator leak from just below the top transmission line as it enters the radiator. Got to the part where I need to remove the lines & of course they are on there pretty tight. Someone "borrowed" my flair nut 13mm wrench, so I either need to find one and try again or cut the lines and replace them or put extension hoses over the cuts.
I also was thinking of installing an external transmission cooler (i already have a small one from previous nonmaterialized project) but I have a hard time finding a spot where it would go in easy and not interfere with anything else.
Any suggestions or maybe someone already done it and have a procedure for me to follow?
btw, i am guessing that transmission line is somehow vibrates a little or in some other way puts too much stress on the radiator housing, so even adding a couple of pieces of hose with clamps could be beneficial as well.

Thanks!
most transmission coolers come with those plastic mounts that stick right through the condensor core, & the core of the cooler itself unless you have the type that used screw to mount it. then you might have to make some brackets & bolt it up to a nearest bracket on the car. the radiator is mounted on rubber, so that might just dampen any vibration before it does any damage to the radiator.

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Old 09-08-2009, 03:50 PM   #8
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1998 SW2
Default Re: Doing the radiator replacement on 98SW

Thanks a lot!
I did look through the tec section - a very nice writeup. I am going to take those lines out of the tranny as you suggested and deal with them while out of the car, maybe vise grips, since i don't have the normal vice at home
If it works out fine I'll just leave it the way it is for now and come back to the external cooler later, when I have another car to drive.

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Old 09-08-2009, 04:35 PM   #9
nmikmik
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1998 SW2
Default Re: Doing the radiator replacement on 98SW

didn't make it on time for the edit, I was wondering if anyone has pointers on removing the airbox mounting bolts. I was able to remove the front bolt but two that are facing the firewall are just so rusted out that even PBlaster did not help. So what is my next option? cutting the bolts out? They are just twisting in place and loosened up a little bit.

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Old 09-09-2009, 04:34 PM   #10
nmikmik
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1998 SW2
Default Re: Doing the radiator replacement on 98SW

Alright,
I removed the airbox along with the battery tray as well.

This brings more questions then answers. I would like to clean the rust of both frame and the transmission valvebody and then paint them both.

Since I am still dealing with the slamming revers gear on my transmission, I wonder if I should take out the valve body and try to clean passages while everything is accessible. And those two sensors that's visible under the tray...

Should they be cleaned/replaced or do they matter for the reverse at all?

Thanks!
I wonder why I can not post the pics till after 15 posts?

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