This is a video of drilling and tapping the right (rear) bank with the engine in the car of a 1998 Deville.
This is a video of drilling and tapping the right (rear) bank with the engine in the car of a 1998 Deville.
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How did you get the cylinder heads off? Any areas of concern, special
tools, or problems when you took them off? The haynes manual says you
shouldn’t attempt cylinder head repairs and take it to a dealer or
authorized shop. The dealership wants more for the job than what the car is
worth! Any website that has instructions for removal? I’ve rebuilt muscle
cars but his is a whole other animal. Any advice would help, thanks.
An update, I was able to use the thread inserts & successfully repair my
northstar with the motor still in the car. These is a very time consuming
process & requires a bit of know how & extra tools the common joe doesn’t
have. You can lower the front of the A-frame to rotate the engine down &
forward so you have enough space to work between the back cylinder & the
firewall. I chose the GM approved thread inserts but there are better
products out there, just didn’t want to spend the extra money.
from what i hear it’s best to drop the engine but everyone is entitled to
their own theory of which works best. i think its best to be done with
someone with some mechanical background because once you mess up the
threads in the block the engine becomes useless.the dealer quoted $5500
today for the head gasket…. northstar owners get your toolbox open and
crack a cold one… with this job, maybe a couple
there are better kits to fix the threads then gm even does
saw a video the guy use a vacume to get the shaveing why he drill the f n
hole aluminum blacks suck
this was very helpful, i have to replace head gaskets on my northstar V8
I want to see how you pulled the heads. How many hours did the whole job
take. I just bought a 1996 DeVille with an overheat issue, I assume its the
head gasket / engine stud defect.
Fuck gm
How did you know how deep to go?
Mike is this a kit with the guides and drills, taps etc. and of course a
complete set of instructions on how to work in such a small area. I could
see the front but the rear, I must know. Are you using time certs, probably
no room for studs? Where are you located and do you work on other peoples
cars? Thanks David
This is what I mean you buy a $40k car and this is the remedy to fix it
crazy. Cadillac really messed this one up. It is much easier to do this
task with the engine out. Do yourself a favor and don’t buy a northstar but
if you do you will lose money and it will nickel and dime you to death and
forget about it being predictable or reliable. It’s basically a throw away
engine. Just check your local salvage yards are full of em more so then the
cars they were in.
that almost a 400 dollar jig set you got to buy with the heli coils
Cadillac s Are Built Complicated So That Its Complicated To Keep Money In
Your Wallet.
If is this fixes the problem, then why didn’t GM do this from the factory?
Another testament to their lack of commitment to quality.
Duck northstar
Did u have to tilt engine froward?
Wow; and many say that it can’t be done with the engine in the car… Was
this entire job successful?
cadillac really knew what they were doing with this engine!! its built for
performance!! that’s right! a luxury sedan! built to run hard! you do not!
i repeat! you do NOT! baby this motor. its built to run hard and very hard!
i mean drive it like you stole it!.. by babying this motor all your doing
is letting it build up carbon and moisture! the pistons were designed to
lay a certain position inside your motor. by not running it hard, they will
never form!! Google WOT procedure for northstar!!!
@Xziau1 Jeez get a life!
my northstar has 300hp 295 ft lbs of torque! my car is 4500+lbs getting
near 30mpg highway!! what other luxury sedan with that kind of weight ,do
that? these motors are bullet proof!! you take care of it and will take
care of you!! also. 4t80e turbo transmission 1st gear-45mph 2nd gear-85mph
3rd gear-130mph…one more gear but the motor has a limiter on it so who
knows how fast she can go!
@Xziau1 Lol its funny how worked up you get over these stupid comments.
these motors are great motors!! headgaskets only fail if the motor is not
maintained properly! pure fact! flushing out the coolant and re adding
dexcool every 2-3 years! not every 100,000 miles!! you do that and your
northstar will last forever!! the special dexcool antifreeze for this motor
has a certain solvent that protects the internals of the aluminium motor.
by letting it sit for years it begins to weaken and turn to water rusting
out vital parts! eventually resulting in a blown headgasket
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