To peruse our inventory and shop our parts, please visit www.Importapart.com or email us at Importapartsales@gmail.com.
To see if I’ve torn down a particular engine, check out my other teardowns here: https://www.youtube.com/playlist?list=PLIYwo7JlrVQVg32JL-r4H7dfMxMqzWlVa
Today we have a first for the channel and a pretty special engine, a Mazda Skyactiv-G 2.5L 4cyl from a 2021 CX-30. This was from a rental car and brought in to the local Mazda dealership with a no-start condition where they condemned the engine. This is the very first “bad” Skyactiv engine I’ve had the chance to buy for the channel as they seem to be really reliable engines with a lot of used engines available from used cars, and relatively low prices due to low demand.
The Skyactiv engine is special because it focuses on the most complete combustion possible, utilizing high compression (14:1), direct injection, and specifically designed pistons and manifolds to prevent knock while running low octane with such high compression. The results are impressive fuel economy, good power (186hp) in a reliable and compact power plant.
I’ve had a lot of requests for these engines and many others. If there’s any engine you’d like to see torn down, I may have already done it so be sure to search my channel. If I haven’t leave me a comment and tell me what it is!
Why on earth am I doing these teardowns? I own and run a full service auto salvage business in the Saint Louis area called Importapart. Part of our model is buying blown, core and unwanted engines and dismantling them to resell the good, usable parts. We do not rebuild engines, we merely supply parts to those who do.
I really hope you enjoyed this teardown. As always, I love all of the comments, feedback, and even the criticism. Catch you on the next one!
-Eric
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The previous MZR engines were not "Ford Influenced"! Wrong information given. Mazda engineered the MZR 2.0. 2.3, and 2.5.
My sister's 2016 CX5 failed at just under 61k. Head cracked and leaked coolant and oil into the spark plug wells.
Out dealer replaced it for free out of warranty because the issue began inside the warranty period.
There's a hole some where You could tell by that little bit of oil you got out..
My mom bought a 2022 CX-5 with the 2.5 liter N/A Skyactiv-G motor and I have to say it’s a very nice little car to zip around in. Aside from the overall good aesthetics and build quality inside and out the drive train and handling are great. Not the most powerful engine but always willing to run and it’s probably one of the only cars in its class that doesn’t get out of shape when the roads turns curvy. Pretty fun package to take on a road trip. Overall satisfying vehicle purchase.
The engine was seizing and still having combustion. When there is combustion and the piston won’t move… the rings will crack.
next time just do a compression test beforehand.
I had a 1990 Mazda Protegé my first car I never wanted to give it up
Wow ! that's a big engine.
waves at the fb in the back hiiiiiii!
To be clear.. Ford used Mazda engines and designs, not the other way around.
bunch of oil?
To bad the owner never looked at their oil cap or dip stick. Unless the failure happened rapidly ???
Lesson to be learned here: Avoid buying a used rental car no matter what.
Our experience with Madza cars has been superb! Purchased used protege model year 2000.
Serviced us well. Couldn't ask for a more reliable car. Purchased a 1991 miata with 234k on clock. Ran like a top did not use oil or leak. It was our week-end run about. Would've purchased a madza when looking for new car but madza offered no hatch models with good storage.
Madza van was out of budget. Honda fit came to the rescue! Amazing what you can carry in a fit. Another great car.
Car Wizard, another Youtube channel , just recently had a CX-9 with the turbo 2.5 (90k miles) that also had a head gasket failure.
Best to install the oil catch can to reduce carbon build up.
Just one good proffesional rectificación job, re assambling with all pistons, gaskets and so on new and back to life again. Greetings from Costa Rica
"the inside of the pickup looks pretty clean too"
Well obviously, it has been cleaned with coolant thoroughly!