Hondas are among the most dependable vehicles on the planet. Deal with a Honda proper, with constant upkeep and good driving habits, and there isn’t any doubt it’s going to final tons of of 1000’s of miles. This Civic engine made it to round 250,000 miles earlier than it was changed, and it nonetheless appears to be like extremely clear inside.
The I Do Automobiles YouTube channel tore down this 1.7-liter D17 naturally aspirated inline-four out of a 2003 Honda Civic to see how that mileage affected the engine’s internals. Regardless of being in want of some apparent service—the timing belt was lengthy overdue for substitute—a lot of the working gear, together with the heads and the pistons, look to be in advantageous form.
After all, working an engine for that many miles will trigger some put on irrespective of how nicely it is handled. Whereas oil adjustments gave the impression to be constant, there was nonetheless some vertical put on to the cylinder partitions, and a bunch of wear and tear to the principle bearings and connecting rod bearings.
Eric, the channel’s host, additionally discovered particles within the oil pickup tube and weirdly, lodged into the impeller of the water pump. Going a bit deeper, he discovered the rationale why this engine was pulled within the first place: A foul head gasket.
In accordance with Eric, these engines can run for 1000’s of miles with a failing head gasket, which is probably going what occurred to this engine. Except for burning coolant, it probably ran advantageous. That is evidenced by the in any other case wholesome internals. Certain, the proprietor may’ve simply resurfaced the pinnacle and changed the pinnacle gasket. However contemplating the miles, eliminating the entire engine was most likely the higher name.
