TURBO COOLANT LEAKS - 87 900T - Saab 900 Bulletin Board - Saabnet.com
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TURBO COOLANT LEAKS - 87 900T
Posted by JRWOODY (more from JRWOODY) on Mon, 6 Nov 2000 13:29:09
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Coolant is leaking from connections/gaskets from turbo housing to exhaust downpipe (elbow) and from turbo housing to exhaust manifold. This only happens when starting cold. Once warmed up, leak stops, I guess due to heat expanding the metal thus tightening seal (or maybe any leakage is evaporating when engine is hot).
Questions:
Should I try torquing up the bolts to stop the leak, or go ahead and plan to replace the gaskets, and, is it better to tighten the bolts while the connections are cold (not expanded).
Also, why is coolant reaching these points anyway? Is this normal or could I have a blown gasket in the water cooled turbo unit or elsewhere in the engine which would cause coolant to reach these points?
Lastly, could this affect turbo boost?... I get apr 2/3 into yellow at best.
Thanks for any help you guys can offer.
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