Camshaft fracture
Discussion
Last year I had a large front end accident at Thruxton which was not my fault. The car was finally put back together again and straightened out a few days ago and the engine was running fine. The car was then taken to Silverstone for some driver tuition yesterday.
In the morning i received a call saying that the car is not running right and one of the cams has snapped.
How could this of happened? The car was running fine a few days ago so i doubt the cam was fractured/snapped then.
The engine in question is a 1.4 Ford Zetec SE
What could have caused it? Over revving when cold?
Many thanks in advance
Michal
In the morning i received a call saying that the car is not running right and one of the cams has snapped.
How could this of happened? The car was running fine a few days ago so i doubt the cam was fractured/snapped then.
The engine in question is a 1.4 Ford Zetec SE
What could have caused it? Over revving when cold?
Many thanks in advance
Michal
? 
I rather think that the hijacking of this thread by certain individuals is rather unfair on the poster and very bad form. If you want to make fun of me or Restore stick to the snake oil thread.
My reasoning for asking the question about the camshaft is quite valid as I am sure that the more knowledgeable mebers will realise!
Perhaps it's time for the Administrator to step in as the moderators seem to be conspicuous by their absence
!
My reasoning for asking the question about the camshaft is quite valid as I am sure that the more knowledgeable mebers will realise!
Perhaps it's time for the Administrator to step in as the moderators seem to be conspicuous by their absence
! AntMat said:
I rather think that the hijacking of this thread by certain individuals is rather unfair on the poster and very bad form. If you want to make fun of me or Restore stick to the snake oil thread.
My reasoning for asking the question about the camshaft is quite valid as I am sure that the more knowledgeable mebers will realise!
Perhaps it's time for the Administrator to step in as the moderators seem to be conspicuous by their absence!
My reasoning for asking the question about the camshaft is quite valid as I am sure that the more knowledgeable mebers will realise!
Perhaps it's time for the Administrator to step in as the moderators seem to be conspicuous by their absence
! Calm down dear, it's only pistonheads
Well I am not a meber knowledgable or otherwise, however.
I am not sure it makes any difference how many parts the cam is in, I am surprised it has broken at all. I think this is one of those tricky situations where a car has been lent to someone and it has broken in their care, they will think it was caused by it being weakened in the crash (also my view) and you will feel they have treated the car badly and thus caused the problem.
Basically you will probably never find the cause, you may find the bearing surface furthest from the drive end of the cam have picked up, which suggests oil starvation at high revs which would be consistent with hard use from cold, but it could also have happened if the crank started to break up and ran off centre for a few rotations before stopping.
Basically unless you had a you break it you pay for it agreement with the driver just bite the bullet and sort it out, replace the cam and hope with it having broken the valves sprang up before contacting the pistons.
I do lend some of my cars to friends on occasion however we all know if we borrow the other persons car and break it we mend it, except in some circumstances which are obviously not avoidable.
I am not sure it makes any difference how many parts the cam is in, I am surprised it has broken at all. I think this is one of those tricky situations where a car has been lent to someone and it has broken in their care, they will think it was caused by it being weakened in the crash (also my view) and you will feel they have treated the car badly and thus caused the problem.
Basically you will probably never find the cause, you may find the bearing surface furthest from the drive end of the cam have picked up, which suggests oil starvation at high revs which would be consistent with hard use from cold, but it could also have happened if the crank started to break up and ran off centre for a few rotations before stopping.
Basically unless you had a you break it you pay for it agreement with the driver just bite the bullet and sort it out, replace the cam and hope with it having broken the valves sprang up before contacting the pistons.
I do lend some of my cars to friends on occasion however we all know if we borrow the other persons car and break it we mend it, except in some circumstances which are obviously not avoidable.
wildoliver said:
Well I am not a meber knowledgable or otherwise, however.
I am not sure it makes any difference how many parts the cam is in, I am surprised it has broken at all. I think this is one of those tricky situations where a car has been lent to someone and it has broken in their care, they will think it was caused by it being weakened in the crash (also my view) and you will feel they have treated the car badly and thus caused the problem.
Basically you will probably never find the cause, you may find the bearing surface furthest from the drive end of the cam have picked up, which suggests oil starvation at high revs which would be consistent with hard use from cold, but it could also have happened if the crank started to break up and ran off centre for a few rotations before stopping.
Basically unless you had a you break it you pay for it agreement with the driver just bite the bullet and sort it out, replace the cam and hope with it having broken the valves sprang up before contacting the pistons.
I do lend some of my cars to friends on occasion however we all know if we borrow the other persons car and break it we mend it, except in some circumstances which are obviously not avoidable.
I am not sure it makes any difference how many parts the cam is in, I am surprised it has broken at all. I think this is one of those tricky situations where a car has been lent to someone and it has broken in their care, they will think it was caused by it being weakened in the crash (also my view) and you will feel they have treated the car badly and thus caused the problem.
Basically you will probably never find the cause, you may find the bearing surface furthest from the drive end of the cam have picked up, which suggests oil starvation at high revs which would be consistent with hard use from cold, but it could also have happened if the crank started to break up and ran off centre for a few rotations before stopping.
Basically unless you had a you break it you pay for it agreement with the driver just bite the bullet and sort it out, replace the cam and hope with it having broken the valves sprang up before contacting the pistons.
I do lend some of my cars to friends on occasion however we all know if we borrow the other persons car and break it we mend it, except in some circumstances which are obviously not avoidable.
You have pretty much hit the nail on the head lol
I was quite suprised to hear that the cam had fractured too although i have been told that im getting a new head free of charge
Thanks all
Michal
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