M10 Chain Or Belt?

[ZiMMie]

Ive got an 84 318i M10. jst wondrin if the timming its driven by a belt or chain and how often does it need to be changed?

[KenC]

chain... you don't really have to change it unless it's damaged or something.

[grlaneriejr]

The M10 has a chain, that doesn't need to be changed. But keep in mind, there is a chain tensioner that does. It shoots off the side of the chain cover and is a "lifter" and a spring.

[ZiMMie]

when/ how many km does the tensioner sees?

[grlaneriejr]

Not really sure. I'd do it about every 100k miles at least.

[ZiMMie]

thanx guys no wonder its not a belt. this car has been beaten soo bad.

U GUYS ROCK.

OT but does anyone know how to do the valves on the m10?? its ticking.

[Madhatter]

Same as an M20 and M30 with eccentrics

http://www.2002faq.com/engine_and_drivetrain/m10_valve_adjustment.html

Do them with the engine cold, clearence for both valves is 0.20mm or 0.008"

[Kondour]

you have to worry about the chain guides... if they break, they get wedged inside the chain and cause havok.... my dad replaced his chain and guides at 250k miles.