Thread: Crank pulley failed - HUGE problem and eventually an engine rebuild

I can't believe the bottom was rotated without the top and didn't cause any major damage, that's cool!

Last job I was on I seen a guy wind over a Iveco truck engine with incorrect timing and the thing spat the rocker arm. In that engine the valves were almost vertical. So no need to bend the stem just find the weak point. Replaced the arm. Reset timing and it lived.

That goes well with what Graeme is saying to. I originally read the post as the pulley went at the same time as everything else.

You might get lucky again set of cam bearings and see what it does. Cool photos too.

Originally Posted by Graeme

If the vehicle is already running again then if more rockers fail then it will only mean running on 5 cylinders again, at which time all the other original rockers could be changed. No need to change camshaft bearings though.

Thats a fair comment, my gripe with repairs to these engines is I have removed a head (on an engine I had replaced) and found that one piston had a tiny mark from a valve giving it a kiss and the piston stopped short when compared to the others. So I would assume it had a slight bend in the conrod.

The OP is prolly a good example, their repairer had fixed it, yet it is now showing more issues further down the track, the end result being its a cost now added to what is most likely going to be an engine replacement anyway.