Dead At 30K Miles!? Mazda Skyactiv-G 2.5 CX30 Core / Blown Engine Teardown

To peruse our inventory and shop our parts, please visit www.Importapart.com or email us at [email protected].
To see if I've torn down a particular engine, check out my other teardowns here:    • Blown Up Engine Tear Downs! A collect...  
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