Bill K Posted June 29, 2005 Report Share Posted June 29, 2005 I started to overheat and checked all the hoses, replaced thermostat & pump tensioner & belt & finally had air test into cylinders. Sure enough, its the head gasket. They are going to timesert it and replace the head gasket. They mentioned replaceing the timing chain guides. Now the car is in the shop (not dealers) and I'm wondering if there is anything else I should have done to the motor while its out of the car. I havent had any leaks or other issues but at 114,000 mi. who knows what could be next. Any and all thoughts appreciated. Link to comment Share on other sites More sharing options...
speedyman_2 Posted June 30, 2005 Report Share Posted June 30, 2005 I just had my Northstar replaced. I bought a used engine. It has less than 10,000 miles on it. The mechanic suggested I buy all the engine seals. You should do the same. Since the engine is out you might as well. Mine is running perfect and no traces of any leaks. Can't think of anything else right now... Link to comment Share on other sites More sharing options...
Ranger Posted June 30, 2005 Report Share Posted June 30, 2005 Guru has commented that you should never have to replace the chain guides. He has said that they will wear an initial groove in them and that is it. They may appear worn to an untrained eye who is not familiar with the Northstar. Link to comment Share on other sites More sharing options...
Matt Posted June 30, 2005 Report Share Posted June 30, 2005 When I had my 4.9 replaced I did what ever I could think of. All the gaskets,valve cover to oil pan includeing trans and tourk converter O-Rings and seals. Also did wires and plugs. I wish I had replaced water pump too, I should have. Also did the O-rings from the oil filter cooling housing that go on the two steel cooling lines and the O-rings on the steel lines ware they go into the radiator cooling jacket. It is much cheeper to do as many things as you can now with engine on a stand then in the car. Link to comment Share on other sites More sharing options...
navion Posted June 30, 2005 Report Share Posted June 30, 2005 I started to overheat and checked all the hoses, replaced thermostat & pump tensioner & belt & finally had air test into cylinders. Sure enough, its the head gasket. They are going to timesert it and replace the head gasket. They mentioned replaceing the timing chain guides. Now the car is in the shop (not dealers) and I'm wondering if there is anything else I should have done to the motor while its out of the car. I havent had any leaks or other issues but at 114,000 mi. who knows what could be next. Any and all thoughts appreciated. Bill, I would change the torque converter seal and the "O" ring on the input shaft that seals the TCC oil supply. They are not expensive and relatively easy to change. 114,000 miles is a lot on a seal that you have to pull the engine to get to. Leave the timing chain guides alone. You could have them reseal the bottom end, as they seem to have chronic leaks at the case seals. Consider changing the front & rear main seals also. Britt Britt Link to comment Share on other sites More sharing options...
Bill K Posted June 30, 2005 Author Report Share Posted June 30, 2005 Thanks for the input guys. I'll take these concerns up w/mechanic tomorrow. I didnt mention that I was having a "soft" shift into reverse when the car is first started. They are going to address that problem also. Link to comment Share on other sites More sharing options...
jackc Posted June 30, 2005 Report Share Posted June 30, 2005 Probably want to add a fresh set of motor mounts to the list. Also - but not sure if it applies to your car - you may want to inspect the heater hose pipes and the blower motor case. Link to comment Share on other sites More sharing options...
TDK Posted June 30, 2005 Report Share Posted June 30, 2005 Bill K, Look up one post (well, he was there a bit ago anyway), to JHall about his N* going back in. He has rebuilt it totally to the point that some might call it overkill. In any case, he has covered a lot of info in his previous post as well. This one in particular notes the tranny speed sensor as a must-do-now type of thing. Good luck Add power to leave problems behind. Most braking is just - poor planning. Link to comment Share on other sites More sharing options...
WarrenJ Posted June 30, 2005 Report Share Posted June 30, 2005 you may want to inspect the . . . . blower motor case. jackc raises a VERY important point; our vehicles are known to suffer cracked blower motor housings. It can ONLY be replaced with the engine out of the car. It deserves a real close look. Regards, Warren There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
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