Head Gasket and Timing Chain Replaced Oldsmobile Aurora 4.0L 95-99 Northstar Part 1 of 3
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- Опубликовано: 13 сен 2024
- Replacing the Head gasket and Timing Chain Set on a 1998 Oldsmobile Aurora 4.0L V8 Northstar Engine. 1995-99 models. Video 1 of 3.
This is an excellent video! I think this is the best step by step video for any Cadillac, Oldsmobile Northstar engine disassembly and reassembly. Everything is done correctly and the mechanic knows what he's doing and is not sloppy. Very refreshing to see something done correctly and clean which is the way how I work on my cars as did my father and grandfather. Nice!
If you are familiar with this engine can you tell me other than the 6 frame bolts what else would hold the subframe to the body? I'm replacing the rack and pinion and some other parts
@@atowninytown859 What year car and model? You will have to look at the engine mounts and also the suspension will hold the subframe up, but there's only the main 6 bolts that holds the subframe up in place.
Also, how would you find too dead center on the 1st cylinder?
quiero mi respuesta en español
Hello From France!
Thank you so much for your videos ! You give me the faith and the right way to work on my Northstar.
You do the best video ont the subject ... You Rock !!
Thanks I have a 1999 Aurora it's running hot also hopefully I don't have to do this but thanks for the detailed information!!
you are my hero !! I own a 98 Seville and have the same problem with the headgasket... so its´very helpfull to see how you do that. THANKs´a lot
rosch1964 glad this video helped 👍🏼
dude you did way more work than you needed too. I never touched the struts at all.
Very smart informative video I have a 96 Aurora i need to know everything about this engine
Love my 98!!
Great video!!
I have an 03 aurora that I'm replacing the rack and pinion on, and your video has helped me a lot with this engine. However I'm having some trouble with dropping the subframe, I removed the 6 bolts plus a motor mount bolt in the front and the frame still seems to be snagged , what else could be holding it up?
I drive a ’98 Aurora with 156k miles and like it a lot. I’m wondering, since the headgasket issue on these first generation Auroras is known, if there’s something that can be done to prevent the gasket from blowing. Going in and tightening the bolts every year or two? Knowing *exactly* what causes the issue in the first place would be helpful to this goal. I’ve read that the bolts vibrate loose over time causing the issue, but I’ve also read that the bolts actually stretch. Any clarification? Ideas for preventing the gasket from eventually blowing due to this? From what I understand, besides this potential disaster, this car is awesome. It’s already served me quite well on 7 or 8 road trips, including an 1800 mile one to the coast round trip.
BlueShinai's interviews etc. yes, these cars are actually quite awesome. I’ve had the pleasure to drive one back and forth long distance and are powerful cars. But if it’s just the head gasket, then you should be able to
use factory head bolts and new head gasket. No, you can’t tightened the head bolts regularly lol. But what might happens is not so much on bolts stretching but corrosion happens within the threaded area to the block and head bolts. Weakens the strength between the head and block and so when that happens. Cylinder compression pushes the head with weakened head bolts contact and head gasket blows. So then you’ll have to install studs instead of head bolts. But overall, just don’t let your engine overheat and do your scheduled coolant flush. So that way it helps prevent overheat and head gasket separation thus allowing fluid around head bolts and causing corrosion. Well, hopes that helps a little. Thanks
@@ls1camaro92 That was very well said. Because I always say the same thing myself. Just simply maintain the cooling system correctly to avoid this problem altogether. Unfortunately this is something that a lot of people look over and is not a top priority. My family always did primarily Cadillac's ever since the 1950's and its the same thing with the antique ones. Cooling system maintenance is very important no matter what year it is.
I have a 97 Oldsmobile Aurora with only 80k on it and I'm going to get the head gasket rebuilt in a couple weeks I was wondering if you think I should get the timing chain replaced even though it doesn't really need it right now? Or is that just that standard part of head gasket replacement on these?
Is it overheating?
@@mellyzaurora1277 it ran hot but it didn't go into the Red zone but it ran at about 250°. I've already had the head gasket replaced. The Mechanic said old age wore out the gasket seeing as it's almost 26 years old.
I've shared this on the Aurora Forum.
I've been looking and I can't find a diagram for a 2001 Oldsmobile intrigue 3.5 l v6. I'm wanting to replace the head. I know about on the Northstar engines the head bolt problem. The head bolts being too short and in 2005 just put longer head bolts in fix the head gasket problem. I'm wondering if the same thing applies to the v6. Northstar V8 Aurora engine from the 90s and I'm hoping you'll know what I'm talking about. Also what would be the best head gasket set for that 3.5 l
is 4.0 less prone to problems compared to the 4.6?
Are these engines known for head gasket issues? How about the newer Aurora say 2003?
@Blue Moon
These engines are very well known for head gasket issues...both in the Cadillac 4.6 and this smaller 4.0 in this video
After 2001 there was a ton if improvements and I don't hear about those year models being problematic
Its a shame GM let this go on for more than a decade..putting more coffin nails in the cars resale value
Northstar v8's from 93 to 2004 are vulnerable 2005+ Northstars no.
you can pull the engine from the top/front if you remove the rad support and bumper . and remove the ABS pump /MC together out of the car, Trust me that is going to be out of the way, Its way easier than dropping the cradle.
How many miles were on this one?
Right at 200k
Wow surprised it made it that long. My 97 only made it to 83k
@@oldsmobileaurora7418 so she’s overheating? That’s low miles to have this happen already.
@@ls1camaro92 yeah the mechanic said the gasket was probably just worn out due to age. The car is almost 26 years old at this point.
@@oldsmobileaurora7418 it’s common with this engine. So I believe it.
I was hoping to see you actually removing the frame bolts, and dropping the engine. Did you not video tape that?
Matt Nale Being by my self it was kinda hard to video it but did described how I did do it in the video. So a cherry picker, 2x4s pieces, 4x4s pieces, wheel Dolly’s, jack stands and a good hydraulic jack. Low profile is best. Just take your time when lowering the motor onto the jack stands before removing the cherry picker from engine/K member as you’ll have straps or chains supporting it in the air when removing the k-member bolts from body. Once you lower it one the jacks, simply remove the cherry picker. Then use the hydraulic jack to k-member little at a time in a circle around the car until you have reached the wheel dollies, then remove jacks. And then roll the engine and tranny out from under the body. A 2 man team is best if you have help, I did it on my own but help is best. And good luck with the repairs. Thanks
OK I was just wondering if maybe you had tape that you felt wasn't worth posting. I actually have an Aurora with the Northstar 4.0 that has the head gasket problem. I was hoping it could come out the top, but only found 1 post where someone said they did that. (And I can't find it right now.) So when I saw your video it intrigued me, and it is still the same engine. I have not looked at you other two videos yet, I keep having other issues present themselves for repair, lol. But thanks for the reply!
What does a job like this end up costing the customer? This is scaring me away from buying an Aurora.
Talking about at least 5,000
Don't get an aurora unless its really cheap and you can scrap it easily.
Maintain the cooling system correctly and you won't have a problem!
My family has 3 1999 auroras all above 100k one almost reached 300k but the transmission when out- my brother did drive it hard. We have never had any coolant/head gasket problems on any. Just follow the manual directions for coolant maintenance.
@@Ken-RicSki I agree most people do not flush their coolant and complain about overheating
caint remeber where the ground goes
Ok the dohc v8 is a bitch to work on i bet this a common issue with these motors HEADGASKET
This car should have just been sent to the junkyard.
RAM 77 customer bought this vehicle new back in the day for his wife, she passed away and so he’s not going to trash it if he can. Rather keep it being they loved this car together.
Those cars are very hard to find now.
if you eliminate your -go aheads and went aheads- your video would be half as long and less annoying