BigCat83 Posted October 18, 2006 Report Share Posted October 18, 2006 Started a couple of weeks ago. Rear head is leaking coolant into the V. Haven't made up my mind as to whether I want to do it myself or hire a shop. If I do it I know it will be done right. I'm fairly well experienced at such things - tech school, worked as a tech, head gaskets, head and engine rebuilds and many other projects. I know my way around cars... If I do it I'll do it with the engine in the car in the car, just don't know if I want to undertake this project. You fellas who've timeseted the engine in the car I seek your advice... Everyone else please feel free to opine. Link to comment Share on other sites More sharing options...
BodybyFisher Posted October 18, 2006 Report Share Posted October 18, 2006 I am sure that KHE (kevin) will chime in here, but here is his recent thread for you to look over. http://caddyinfo.ipbhost.com/index.php?sho...ic=9085&hl= Some very knowledgable time-serters contributed to his thread. We have had a couple of members do the job with the engine in the car (Barry94?). Good Luck Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
MAC Posted October 18, 2006 Report Share Posted October 18, 2006 If you search the archives you will find a lot of information on this topic. It typically costs over $2K to time-sert a Northstar engine. Here are a couple of links that may be of some assistance. Cadillac Northstar time-sert repair of Head Bolt Threads Head Gasgets and Time Serts, Archive pointers Link to comment Share on other sites More sharing options...
KHE Posted October 18, 2006 Report Share Posted October 18, 2006 Before I ripped the engine open, I would make sure that the head gasket is leaking - many times, coolant into the "V" area of the engine is due to die checking/porosity in the casting. If that is the case, the leak will not hurt a thing and a dose of the sealer pellets will clear it up. Remove the intake manifold and pressurize the cooling system with a tester and positively identify the source of the leak before jumping to the conclusion that the head gasket is bad. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BigCat83 Posted October 19, 2006 Author Report Share Posted October 19, 2006 Thanks for the advice fellas. My son's advising me to hire a local shop (he owns a pearl white '97 Eldo). For sure I'll confirm it really is the head gasket. I'd bet a week's pay that it is... Link to comment Share on other sites More sharing options...
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