BMW E30 M20B25 Engine Rebuild Restoration - Time-Lapse | Part 4. Posted: June 6, 2025 | Last updated: June 14, 2025. In this episode, I work on several engine pulleys, covers, and brackets.

BMW M50/M52 Engine - 325i/328i Tuning Guide. ... When putting the intake system, pulleys and software together, expect to have a noticeably faster car that's probably close to 185whp.

When I went to quickly swap my 2011 BMW 128i’s serpentine belt, tensioner, and idler pulley a few nights ago, I noticed that quite a bit of schmutz had accumulated on the front of the engine ...