Some internal pics over time

Messages
134
Location
Idaho
Purchased this 1992 Buick Century from an elderly friend in 2014 with 186K miles on it. He was a 10w40 Havoline man and car has been well maintained. Original owner had it for the first 30K miles. Car had considerable notes on repairs since new. Unable to determine exact service intervals for oil changes. Have found numerous cases of repairs that were not done or not completed properly (or damage incurred), though the local GM dealer was paid for the service/repair.

92 Century.jpg


I did find this car had a lazy thermostat that did not open until around 230 degree not long after purchase. Not sure how long this had been on going.

This car has been treated to a steady diet of December sale, Autozone synthetic oils at least 4 times a year since I have owned it. It is ready to turn over 250K miles.

This car has the odd and simple, little brother of the Buick 3800 V6, the Buick 3300 (MPFI only, no MAP, no EGR, no counterbalance shaft). It was only sold in GM A and N bodies from 1989 through 1993 models.

I preemptively replaced the timing chain and tensioner at 200K miles in Jan. of 2016. The tensioner (already removed in pic) was at the end of its travel.
Old Chain.jpg


This was the timing cover after a light cleaning. As the gearotor oil pump is contained in the front cover of these engines, I did not want to subject it to subject it to significant solvent saturation.

Timing Cover 1.jpg


I also removed the oil pan before reinstalling the timing cover. It was spotless inside.

Changed the intake manifold gasket at 230K miles in late 2018.

After3.jpg


These gaskets are nearly as bad as the notorious GM 3100/3400 intake gaskets. No improved design for these available, AFAIK,

Gaskets.jpg


This leads us to the under the valve cover pics. Now at almost 250K miles.
Removed.jpg


Changed the rear valve cover only. Suspect the front one might be a little cleaner, as the PCV is hooked to the front cover on these engines.
 
Messages
24,699
Location
Dallas,Tx USA
Those are sweet little cars!! Would that same engine be in the Cutlass Ciera of the same era? If so, my friend had a 92 that had near something around 250,000 miles or so on it. Ran perfect!! He always did 3K oil changes with Exxon Superflo 10W40.

The car eventually got stolen. Police found it the next day totaled.
 

CorvairGeek

Thread starter
Messages
134
Location
Idaho
Those are sweet little cars!! Would that same engine be in the Cutlass Ciera of the same era? If so, my friend had a 92 that had near something around 250,000 miles or so on it. Ran perfect!! He always did 3K oil changes with Exxon Superflo 10W40.

The car eventually got stolen. Police found it the next day totaled.
If it was a V6, it was the same 3300. This is the highest mileage one I've seen. Was actually in good condition and rust free. I'll guess transmission failure. Had 4 fairly new matching tires!
Hi Miles.jpg


I never did post an entire pic of the engine. Repairs are so much easier when they are clean.

20210101_113719.jpg
 
Messages
770
Location
Alberta
That's in great shape for the age and mileage. Used to see a lot of those Century's on the road, they obviously sold very well in their day. My sister and BIL had same car (white with red interior) for many years, was a reliable car for them as I recall.
 

CorvairGeek

Thread starter
Messages
134
Location
Idaho
That's in great shape for the age and mileage. Used to see a lot of those Century's on the road, they obviously sold very well in their day. My sister and BIL had same car (white with red interior) for many years, was a reliable car for them as I recall.
We've got a white w/maroon too ('96) that we bought new. Seems like a completely different car with the 3100 V6, as well as a lot of changes and additions to this old chassis. Some were not improvements. It's ready to turn 200K miles.
I think about 3/5 of these were white or blue, a third were gold, and the rest the remaining colors in the last 7 years of production.

Century Custom.jpg
 

JHZR2

Staff member
Messages
46,274
Location
New Jersey
I had a number of friends who have owned high-mileage versions of these cars. Lots of them around in the early 2000s... Usually with an AT replacement, maybe some gaskets, but overall solid cars that kept running until their owners got stable jobs and traded up.
 
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