Car mechanical issues: engine replaced, now turbo has gone

[Drew]

I don't quite understand this entire sequence.
Cambelt broke. its a non interference engine. Pop the covers and bingo either the tensioner bearing is or isn't seized.
Call customer and tell them the news. Ask if its ok to procede
Buy cambelt kit. Fit kit to engine fire engine up. Either A that's the end of the story or B the water pump needs doing.
Not sure when/how it got this complicated.

Cam belt will strip if a can seizes, in which case the motor needn't be checked...its fucked.

[unstuck]

Cam belt will strip if a can seizes, in which case the motor needn't be checked...its fucked.

I disagree. I had the cam seize on my 2.5 diesel, stripped the cam belt but motor was far from fucked. Different cam and caps and a new belt and it is still going hard.

[husaberg]

Cam belt will strip if a can seizes, in which case the motor needn't be checked...its fucked.

Interference motor means the valves can tangle with the piston when a cambelt breaks Drew. Not all motors are interference. Indeed a heck of a lot of belt driven cam engines are not.
The Tensioners that seize generally are not on the cams

[Woodman]

I disagree. I had the cam seize on my 2.5 diesel, stripped the cam belt but motor was far from fucked. Different cam and caps and a new belt and it is still going hard.

Its not "one size fits all".

In fact their are a few knowitallwithouknowingthefacts comments in this thread.

[awayatc]

Interference motor means the valves can tangle with the piston when a cambelt breaks Drew. Not all motors are interference. Indeed a heck of a lot of belt driven cam engines are not.
The Tensioners that seize generally are not on the cams

Indeed....

non interference engine has enough clearance between top of piston at tdc and fully opened valve not to do damage....

interference engines dont have enough clearance....

belts wear out after x amount of kilometers,
tensioners seize or shear of after a while..
the bearing fails...
balancing shafts ad to the list of things that can cause failures.
Old and dirty oil doesn't help.
bent valves not to costly...
getting holes in pistons bit more of a headache....

change oil and filters regularly,
do timing belts, tensioners and waterpump at recommended intervals....

[Woodman]

Indeed....

non interference engine has enough clearance between top of piston at tdc and fully opened valve not to do damage....

interference engines dont have enough clearance....

belts wear out after x amount of kilometers,
tensioners seize or shear of after a while..
the bearing fails...
balancing shafts ad to the list of things that can cause failures.
Old and dirty oil doesn't help.
bent valves not to costly...
getting holes in pistons bit more of a headache....

change oil and filters regularly,
do timing belts, tensioners and waterpump at recommended intervals....

Twin cam engines can still bend valves even if they do not interfere with the piston if the cams get way out of sequence.

[Trade_nancy]

Twin cam engines can still bend valves even if they do not interfere with the piston if the cams get way out of sequence.

By doing what?

[Katman]

By doing what?

Valve to valve contact.

[Drew]

Interference motor means the valves can tangle with the piston when a cambelt breaks Drew. Not all motors are interference. Indeed a heck of a lot of belt driven cam engines are not.
The Tensioners that seize generally are not on the cams

Fuck off cunt. I know the difference between an interference motor and non.

But who the fuck would pay for the number of hours required to fully investigate if the cam was the only issue?

[Drew]

I disagree. I had the cam seize on my 2.5 diesel, stripped the cam belt but motor was far from fucked. Different cam and caps and a new belt and it is still going hard.

No damage to the bearing surfaces in the head? Lucky.

[husaberg]

Fuck off cunt. I know the difference between an interference motor and non.

But who the fuck would pay for the number of hours required to fully investigate if the cam was the only issue?

How about you look what you wrote and what was quoted and what the OP said.
Then seeing as its Friday go down the local fish shop get a fish and beat yourself about the head with it.

The cunt was a nice touch though ya douchebag Aussie

[caspernz]

No damage to the bearing surfaces in the head? Lucky.

Or solved by using 85W140 as engine oil

[Woodman]

By doing what?

Valve to valve contact.

[400sm]

What's the latest?

[jonbuoy]

How about you look what you wrote and what was quoted and what the OP said.
Then seeing as its Friday go down the local fish shop get a fish and beat yourself about the head with it.

The cunt was a nice touch though ya douchebag Aussie

What Drew is saying is possibly an oil starved cam seized in the head which damaged belt/tensioner setup. Either way no one has the full story and its all guestulation.