Skip to main content
Topic: 3.8 (Rebuild or Not to rebuild) (Read 3230 times) previous topic - next topic

3.8 (Rebuild or Not to rebuild)

Well gents, my Mom's 83 Cougar failed California emissions miserably.  To further this issue, a new rule implemented last year states that any vehicles posessing a leak of any sort that causes fumes or vapors will be subject to immediate failing.  With that said, my Mom's 3.8 has all kinds of leaks ranging from the rear main all the way to the timing chain.  What would you do?  Obviously fix the problem, but here's what I mean.  Since fixing a rear main, timing chain cover, intake, and valve cover gaskets would be labor intensive; should I just get a rebuild?

3.8 (Rebuild or Not to rebuild)

Reply #1
how many miles is on the engine now?
if more than 100,000 then rebuild it or less then 100,000 pull it and fix all the leaks.
remember it easier to fix them, than to find them after they been crushed.

V6 = juvenile delinquency!

3.8 (Rebuild or Not to rebuild)

Reply #2
Get some engine degreaser wash the engine down from top and under and go to another shop. I thought NYS was bad you guys have us by a lot.

3.8 (Rebuild or Not to rebuild)

Reply #3
Well, it does have over 100,000 miles so a rebuild wouldn't be ridiculous.  As for degreasing the motor, I wish it was that simple.  Even without the leaks it failed nonetheless.

 

3.8 (Rebuild or Not to rebuild)

Reply #4
well then it is over 100,000 miles. then it depends on if you want to keep the car for long time.
if yes ,then rebuild away my friend.
if no, then i'm sorry to see it go.
 what kind of shape is it in, good or  ok?
do the car have lot of little things wrong with it?
i'm asking because you could spend a couple of grand$$$$$ into rebuilding the 3.8 and have a car only worth $500bucks.

 if it something that you only plan to have for couple of years. then use the money to buy something else and sell cougar.
remember it easier to fix them, than to find them after they been crushed.

V6 = juvenile delinquency!

3.8 (Rebuild or Not to rebuild)

Reply #5
Quote from: rancheronut;231005
well then it is over 100,000 miles. then it depends on if you want to keep the car for long time.
if yes ,then rebuild away my friend.
if no, then i'm sorry to see it go.
 what kind of shape is it in, good or  ok?
do the car have lot of little things wrong with it?
i'm asking because you could spend a couple of grand$$$$$ into rebuilding the 3.8 and have a car only worth $500bucks.

 if it something that you only plan to have for couple of years. then use the money to buy something else and sell cougar.


I see your point.

3.8 (Rebuild or Not to rebuild)

Reply #6
Quote from: LJS30;230752
California + emissions ?


I think you just found your problem.

The second problem is the fact you could go to a different station and get totally different results.

3.8 (Rebuild or Not to rebuild)

Reply #7
Quote from: rancheronut;231005
you could spend a couple of grand$$$$$ into rebuilding the 3.8
.



what are you smoking?

3.8 (Rebuild or Not to rebuild)

Reply #8
Quote from: rancheronut;230771
how many miles is on the engine now?
if more than 100,000 then rebuild it or less then 100,000 pull it and fix all the leaks.


thats retarded,
why pull a motor and fix only leaks.

pass some of that around man!:D

3.8 (Rebuild or Not to rebuild)

Reply #9
Quote from: LJS30;230752
Well gents, my Mom's 83 Cougar failed California emissions miserably.  To further this issue, a new rule implemented last year states that any vehicles posessing a leak of any sort that causes fumes or vapors will be subject to immediate failing.  With that said, my Mom's 3.8 has all kinds of leaks ranging from the rear main all the way to the timing chain.  What would you do?  Obviously fix the problem, but here's what I mean.  Since fixing a rear main, timing chain cover, intake, and valve cover gaskets would be labor intensive; should I just get a rebuild?



You stated the car failed because of fluid leaking not emissions, well that’s how I took this info.

100xxx is not a lot of mileage you can consider fixing the problem first. And pulling that motor to do a partial rebuild is up surd. Just a to point this out for you if your motor is in good operating condition other than the leaks its not failing the emissions test because it needs to be rebuilt but because something else is wrong EX.o2 sensors / tune-up / to rich / you got to check that all out.

3.8 (Rebuild or Not to rebuild)

Reply #10
Innes:

I just went through the a rebuild on my 1984 3.8.  If I know what I know now, I'd have got a new vehicle.

Problem with the 3.8L is it  is a flat tappet cam.  This requires ZDDP additive to the oil, which is going to be harder to get in the future.
Given this, and the fact you can pick up a car getting around the same gas mileage -- cheap -- I'd go new.

3.8 (Rebuild or Not to rebuild)

Reply #11
Quote from: jcassity;231023
thats retarded,
why pull a motor and fix only leaks.

pass some of that around man!:D


Quote from: jcassity;231022
what are you smoking?


because  it lot easier to fix leaking rear main and oil pan gaskit on a engine stand, than it is laying on your fat rear under the fox body car!

 i'm not smoking nothing! it a 1983 engine  and has more than 100,000 miles on it right?

most machine shop you will have  around $400$ or more for machine  on pair of heads. if have to replace all the valve/valve springs/ any valve seats that are out of spec. my last set to replace every thing was $589.00 for the heads
 then in the short block you can have $300+ or more . you  have to bore the cylinders/ install cam bearings/ turn the crank. recon the rods . you might need to deck the block surface or line bore the mains. my last short block was machine  work bill was $411.89
then how about the engine kit  can go for $300+ or more

 so jcassity are you keepng tabs so far? 400+300+300=$1000.00 if your lucky! and that just  to rebuild your long block!
what if you have to pay some one to assemble your long block? my shop charge is $150.00
what if you have to pay some one to pull  the old engine and install your new engine? my shop charges $300.00 for only that.
 so thats $1000+150+300=$1450.00

jcassity your not going to REUSE all your old belts/hoses/plugs/plugs wires/ oil/oil filter/air filter/ anitfreeze/water pump /starter/bad motor mounts. well that cost money too???????  so last one my shop  did ,total for  that was $640.00
so that $1450.00+640.00=$2090.00+
what about all the sensors and plastic hose to run to and from sensors  that could be bad? that cost money too don't they???

yes !you could spend a couple of grand$$$$$ into rebuilding the 3.8
remember it easier to fix them, than to find them after they been crushed.

V6 = juvenile delinquency!

3.8 (Rebuild or Not to rebuild)

Reply #12
Quote from: rancheronut;231129
because  it lot easier to fix leaking rear main and oil pan gaskit on a engine stand, than it is laying on your fat rear under the fox body car!

 i'm not smoking nothing! it a 1983 engine  and has more than 100,000 miles on it right?

most machine shop you will have  around $400$ or more for machine  on pair of heads. if have to replace all the valve/valve springs/ any valve seats that are out of spec. my last set to replace every thing was $589.00 for the heads
 then in the short block you can have $300+ or more . you  have to bore the cylinders/ install cam bearings/ turn the crank. recon the rods . you might need to deck the block surface or line bore the mains. my last short block was machine  work bill was $411.89
then how about the engine kit  can go for $300+ or more

 so jcassity are you keepng tabs so far? 400+300+300=$1000.00 if your lucky! and that just  to rebuild your long block!
what if you have to pay some one to assemble your long block? my shop charge is $150.00
what if you have to pay some one to pull  the old engine and install your new engine? my shop charges $300.00 for only that.
 so thats $1000+150+300=$1450.00

jcassity your not going to REUSE all your old belts/hoses/plugs/plugs wires/ oil/oil filter/air filter/ anitfreeze/water pump /starter/bad motor mounts. well that cost money too???????  so last one my shop  did ,total for  that was $640.00
so that $1450.00+640.00=$2090.00+
what about all the sensors and plastic hose to run to and from sensors  that could be bad? that cost money too don't they???

yes !you could spend a couple of grand$$$$$ into rebuilding the 3.8
which is precisely why I didn't bother with the 3.8 in my '88.  Been rebuilt once already, and another head  (gasket?) issue, and I don't think it's worth it.  At the very least a 5.0 will net you the same and would be better overall.
1987 TC

3.8 (Rebuild or Not to rebuild)

Reply #13
Quote from: HAVI;231138
which is precisely why I didn't bother with the 3.8 in my '88.  Been rebuilt once already, and another head  (gasket?) issue, and I don't think it's worth it.  At the very least a 5.0 will net you the same and would be better overall.


X2
[SIGPIC][/SIGPIC]
***** Project "EVOLUTION" 1987 Cougar LS  & 1985 Cougar Convertible *****
[/COLOR]
5.0 HO 306 roller block, machined GT-40P heads, Wiseco dished forged pistons, Eagle forged floating I-beam connecting rods, Lunati pushrods, ARP bolts, Scorpion aluminum 1.6 rockers, Comp Cams Magnum 266HR, Explorer intake, 65mm TB, MAF Conversion, 19# injectors, Ford Racing stainless P-headers, 2-1/2" cat-less exhaust w/ Flowtech Afterburner lers , SC AOD with 2800 BDR torque converter, 3.73 T-Lok rear, CHE rear control arms, full 2-1/2" frame w/1" jacking rails & seat supports, Rear disk brakes, Turbine wheels, All original interior w/ floor shift upgrade .......
Pretty much every panel on my 87 is new, rebuilt, or re constructed. :D
Join us on Facebook

3.8 (Rebuild or Not to rebuild)

Reply #14
Quote from: HAVI;231138
which is precisely why I didn't bother with the 3.8 in my '88.  Been rebuilt once already, and another head  (gasket?) issue, and I don't think it's worth it.  At the very least a 5.0 will net you the same and would be better overall.


yep i'm in the same boat with my 86! bad bottomend ,so i wanted to keep a v6 in the car but for the money it WOULD  take i could have a V-8>

EVEN with the high gas prices; i have found a fox body with a v8(factory made or not ) get more resale value than  a  fox body  with a  nonsupercharged v6 car!
remember it easier to fix them, than to find them after they been crushed.

V6 = juvenile delinquency!