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I've been tearing down engines on camera for 2 and a half years! Search my channel to see what I've torn down. Here's a few recents:
Mini Cooper/PSA N14    • JUNK Mini Cooper S (BMW/Peugeot) N14 ...  
Ford 1.0 Ecoboost 3cyl    • JUNK Ford Ecosport 1.0L 3Cylinder Ec...  
Infiniti/Nissan VR30DDTT    • 60K Miles on 1 Oil Change!?! Infiniti...  
Dodge Ram 8.0 V10    • 8 LITERS OF DESTRUCTION! Dodge Ram V1...  
Today's teardown is a Ford 3.7 Cyclone V6. This engine is used in LOTS of vehicles with a few differences and is a larger version of the 3.5L including the Ecoboost found in the F150, Flex and Taurus. These engines are incredibly reliable with one major problem for only the fwd based engines. The water pump. When the pump fails, it can fill the crankcase full of coolant which causes damage throughout the engine usually rendering it cheaper to replace than to repair. The frontwheel drive variant of these engines(which have the internal water pump) are found in the Mazda 6, Mazda CX9, Ford Fusion, Edge, Flex, Taurus, Explorer, Police interceptor, Lincoln MKZ, MKT, MKS, Continental. The Rear wheel drive based variant which does not suffer from the same failure, is found in the 2011+ Mustang, F150, and Transit.
This particular engine is from a 2015 Mazda CX9. I do not know the mileage on this engine unfortunately but it was replaced at the dealership last year so I would guess around 90100k miles. Sadly this failure is fairly common and there aren't many things to do to prevent it. The severity of the damage all depends on how quickly it is caught. Sometimes when caught early, it can be repaired. In many cases, its caught too late.

Why am I doing this? I own and run a full service auto salvage business called Importapart. Part of our model involves buying core and blown up engines to tear down and salvage the good parts for resale. We do not rebuild engines, 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