E46 318ti N42B20 engine query

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Dan320is
E30 Zone Squatter
E30 Zone Squatter
Posts: 1813
Joined: Wed Jan 12, 2005 11:00 pm
Location: Cambridgeshire

Post Mon Oct 19, 2009 9:29 pm

Hi guys,

Just a quick question.....

Is the N42 engine an 'interferance' engine? i.e. If the cam chain was to slip/snap would the valves hit the pistons?


Cheers
pacerpete
E30 Zone Team Member
E30 Zone Team Member
Posts: 18165
Joined: Sun Jan 23, 2005 11:00 pm
Location: Iver heath. South bucks.

Post Mon Oct 19, 2009 11:18 pm

Dan320is wrote:Hi guys,

Just a quick question.....

Is the N42 engine an 'interferance' engine? i.e. If the cam chain was to slip/snap would the valves hit the pistons?


Cheers

Alas, when these nasty things come to a stop, it end in lots of bits and lots of dollars to fix :(
Andyboy
Alpina Colada
Posts: 12580
Joined: Mon Sep 11, 2006 11:00 pm
Location: Notts

Post Tue Oct 20, 2009 12:29 pm

Although the Haynes manual shows you how to take these things apart, in reality they're scrap when a chain breaks because you need at least three special tools. Bin it and fit another engine.