|Quoting Superfly (Reply 3):|
This is how it usually happens. When timing belts/chains break, the driver doesn't know it instantly. The car just shuts off without warning and naturally try to restart it. That is when the valves get warped.
Partially true, but the cam will still spin for a moment and the pistons will still go up a down so bashing the valves is a real possibility.
|Quoting Bongodog1964 (Reply 5):|
Any restart attempt would likely (as in this case) fail to turn the crank, as the valves welded into(onto) the pistons will stop it moving
I have seen that happen many times. For as often as I have seen that I have also seen the valves get bent and the pistons are ok.
Diesel engines are very high compression so it is very likely that the engine is an "interference" engine.
|Quoting Saintsman (Thread starter):|
Being diesel I'm hoping the valves will be set above the pistons and won't have done any damage.
Being a diesel the chances for serious damage are increased. The pistons have to compress the air very tightly so when the fuel is injected the combustion can happen. The tighter the compression the closer the pistons will get to the top of the combustion chamber, thus being closer to the valves. I can't give you any specifics because those are not sold in the US and I have never worked on one. Just speaking from experience.