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[ffcgary1]

Hope it is not the cam belt,......... but it smacks of the experiance that my brother in law had on his v6 veccy b, no noise, nothing, just eml on and loss of power, engine span quickly no compresson, turned out to be the belt tensioner had fail after 12,000 miles 16 months after being changed as a kit. vx would not entertain a claim on warrenty basis as it was a 3.0 in a veccy b.

[PxMetro]

A couple of questions....is the battery okay, and is the aux belt still in tact and in place?

[Andy B]

.....

No need for guess work... the mechanic sent by the A.A. (with no interest in fixing the car, so no need to lie!) has already diagnosed cam belt failure,  .....

Mr AA Man just needs something to write down on his paperwork. Off past experience here, recovery  firms just want to get you recovered & be off to the next job. He couldn't care less what's wrong with your car.

[Entwood]

IMHO there is insufficient info for any even "educated" guesswork ..

No need for guess work... the mechanic sent by the A.A. (with no interest in fixing the car, so no need to lie!) has already diagnosed cam belt failure, also the original poster has been advised how to confirm this we just need to wait for him to let us know.

When a timing belt snaps the pistons only hit the valves (or some of the valves) once, the valves are then bent out of the way so the next time the piston comes up there is no contact, so no noise.

I still have a spare 2.5 engine available...
http://www.omegaowners.com/forum/YaBB.pl?num=1297614167
... open to offers!

Having been present when an "AA man" diagnosed a cam belt failure when his own "diagnostic" was telling him it was a crank sensor, then having to tell him he only needed 1 torx tool to change said crank sensor ... I sometimes wonder what engineering school some of them ever went to.

Luckily it was not my car but someone broken down in a car park .... with some "persausion" the crank sensor was changed by said AA man .. and the car started the first time ..

[henryd]

IMHO there is insufficient info for any even "educated" guesswork ..

No need for guess work... the mechanic sent by the A.A. (with no interest in fixing the car, so no need to lie!) has already diagnosed cam belt failure, also the original poster has been advised how to confirm this we just need to wait for him to let us know.

When a timing belt snaps the pistons only hit the valves (or some of the valves) once, the valves are then bent out of the way so the next time the piston comes up there is no contact, so no noise.

I still have a spare 2.5 engine available...
http://www.omegaowners.com/forum/YaBB.pl?num=1297614167
... open to offers!

Having been present when an "AA man" diagnosed a cam belt failure when his own "diagnostic" was telling him it was a crank sensor, then having to tell him he only needed 1 torx tool to change said crank sensor ... I sometimes wonder what engineering school some of them ever went to.

Luckily it was not my car but someone broken down in a car park .... with some "persausion" the crank sensor was changed by said AA man .. and the car started the first time ..

I had a similar scenario a while back,Renault scenic recovered to me with "gearbox failure" written on the sheet and owner of vehicle in tears at prospect of repair bill,turned out to be a driveshaft gone.Take anything they say with a pinch of salt :-/

[Ken T]

Yes, when my waterpump shaft broke, and the belt came off, bending a couple of valves, Mr AA man reconed it was over heating.


I'm with the RAC now.......

Ken

[chrispin]

A couple of questions....is the battery okay, and is the aux belt still in tact and in place?

Brand new battery and yes the aux belt is still in place 

[bigtow]

If you still havent had any luck diagnosing the fault i may be able to pop over to t wells and give a second opinion as i am in rochester just give me a shout if you want

[chrispin]

If you still havent had any luck diagnosing the fault i may be able to pop over to t wells and give a second opinion as i am in rochester just give me a shout if you want

Thankyou very much have you had a similar experiance then ??
Got a friend coming to look he does scoobies but knows his way around an engine hopefully he can help diagnose the fault 

[bigtow]

I have had a cambelt jump a tooth at low speed before.  It more a case of two heads are better than one.

[chrispin]

I will be stripping the front of the engine down to get to the belt in the next day or so my friend will pop down for diagnosis !!! if its the belt will be doing an engine transplant  and replacing evey belt and pulley plug and lead & pump !

And taking the oportunity to make some enhansements 
Will keep you posted will post up pics of every find !

[ffcgary1]

There is no need to do a transplant mate, just change the heads and gaskets and fit a new belt kit and away you go. if you need a pair of heads i have a pair of 2.5 heads (no cams) which i am sure we can come to some agreement on.
Up to you of course.

[Martin_1962]

They spin frrely with crank sensor gone

[chrispin]

They spin frrely with crank sensor gone

Could you expand on this i dont understand the starter spins but does not seem to make the engine turn over what do you mean ?
Thanks

[chrispin]

Could someone please explain what these mean in english !!!

12 Start
135 Telltale (Checklight) Voltage Low
94 Hall Sensor Voltage High
73 Mass Air Flow Sensor Voltage Low ( this was there already when i did the paperclip test a month ago )
31 No Engine RPM Signal ( this is normal )
12 Finish