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3800 Series 2 taken partially apart

Just a short video of my engine partially taken apart. I had to change the intake gasket. This was actually my first time tackling a job like this and it was actually really easy. So if you have a 3800 engine and need the lower gasket replaced do it yourself and don't pay the dealer. I was a total noob at it and pulled it off just fine =) While it was apart I went ahead and installed an Intercooler. I figure since its already apart an Intercooler would be easy to put in at this point =)


 


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How to change a thermostat on a GM 3800, the fastest way
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GM 3800 Series II Supercharged Intake Manifold Leaks
This is an all too common problem with supercharged 3800 series engines. GM used a plastic lower intake manifold gasket that would break down over time causing coolant to leak into the oil. If left unfixed, it would get worse to the point where your engine starts knocking from poor lubrication. Your oil will look really milky as a result. This engine had only 60k miles on it when I replaced these gaskets and its a good thing I did. GM makes a newer revision aluminum gasket set that fixes this problem. You can get those from a GM dealer, they are the set that has locating pins, the stock ones did not, but these do fit fine.





GM 3800 Series II tribute
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GM 3.8 Intake Manifold replacement. Removal the fast way WITH NOTES
this is the "Flat Rate " way to do a 3.8 liter upper and lower intake manifold set. as you see it is not necessary to take off he serp belt, alternator or tensioner assembly to remove the lower manifold. I recomend having someone help when it is time to reinstall the manifold because it can be tricky to lien up the coolant elbow and not mess up the lower gaskets when reinstalling. Note that it is recomended to disconnect the negative battery cable when doing any major repairs. This video is just to show some guys that said that a lower manifold cant be pulled in way less than 20 minutes, I know that I went over that , but I had some stuborn injectors and Im a little out of practice. If you are going to do this yourself and you are not a professional I recomend that you follow the procedure in a service manual





3800 Lower Intake fix
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Flipping Dogbone Engine Mounts the Easy Way on GM 3800 Series II
Since I could not find another video on how to do this, I figured it out for myself and made a how-to video to help others. This will work on the supercharged 3.8 liter as well. It's an overall easy job, but it's so much easier and straightforward when you've seen somebody else do it first. All you need is a 15mm deep well socket and a 15mm wrench. You could just use 2 15mm wrenches, but it will take longer. In the end you will get more instant torque to the wheels when accelerating. This should work on any GM 3.8 L / 3800 Series I II III (One, Two, or Three) 1, 2, or 3. L36, L26, L67, L32 (Assuming it has the torque strut motor mounts) Park avenues, regals, etc. may not have them. Instead there is a mount on the front of the engine that does the same job. Common vehicles with the 3800: Pontiac: Grand Prix, Bonneville, Firebird Chevy/Chevrolet: Impala, Monte Carlo, Camaro Buick: Regal, LeSabre, Park Ave, Century, Riviera, Reatta Oldsmobile: Silhouette





Removing the engine on my 97 Riviera
Pulling the knocking 3800 supercharged out of my Riviera to make way for the replacement engine. Came out relatively easy thanks to the engine wiring for the most part is one harness that unplugs at the firewall. Everything is in that harness except the starter, alternator and speed sensor wiring. The AC compressor and power steering pump unbolt and can be left in the car so you don't have to drain the fluid/refrigerant. The biggest pain was getting the axis motor mount off, the bolts were pretty rusty. The ironic part is those bolts have to be removed to change the belts, which are so cracked and chipped I wouldn't doubt they are original. The old engine will either be used for parts, or I may rebuild it at some point.





Chevy 3.8 coolant leak
Yes, many of the 3.8 engines have leaking intake gaskets. But sometimes it's not the intake gasket but the coolant bypass tubes instead. It's very easy to overlook this. Here's what to look for and how to do it.





GM 3800 Series II Leak
Removed upper intake manifold and was surprised to see...update: Lower intake manifold had previously been replaced with aluminum gasket. This was found with 102,000 miles on engine :(. Upper intake plenum was damaged around EGR.





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