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Re: adding cooling lines to my 86 SPG
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Posted by oldsaab (more from oldsaab) on Tue, 26 Aug 2008 17:05:29 Share Post by Email
In Reply to: adding cooling lines to my 86 SPG, mar5ka, Tue, 26 Aug 2008 16:21:34
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To expand a bit. The non water cooled turbo *lower radiator hose* is from the pump to the radiator, on piece without and branches. the water cooled unit has a tributary off that hose near the end of the transmission, down low near the bottom of the radiator. This goes onto a hard line that has two stand off mounts screwed onto two studs off the end of the transmission that THEN goes to the turbo side of the engine and comes up to the bottom of the turbo with a compression fitting that screws into the turbo. this line and the proper mount on the stud/standoffs on the transmission face is a bit of work, take your time and do it right, or just MM it up and don't put the studs and bolt to them with the standoffs in your car... lol

The other side can come from *either* between the number 4 and number 3 intake tubes, there is a hex head plug into the intake manifold flat against the head. Unscrew that, and a short metal tube that comes out near the theomostat cover, goes under the number 4 intake tube, is a banjo bolt fitting, requirest the banjo bolt and two very small copper washers one each side of the fitting. this one is usually a royal time sync (you thought I was going to say pain in the ass didn't you?) to get it correct, very crowded in there! a piece of rubber hose from there to the hard metal fitting that goes to the top side of the turbocharger, and has a banjo bolt with copper washers as the other end. **OR** come from about 1990 or so, the later fitting from the head changed to a fitting screwed into the block above the temp sender, and rubber hose to the turbocharger hard line that eventually goes to the same fitting as before. IF you have a head that can support that newer style, go for it, so much easier that the one between the intake tubes... but chances are you don't unless someone changed the head at some point.
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