cam belt snapped 2wd cosworth
27-10-2009, 06:00 PM
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cam belt snapped 2wd cosworth
my cambelt on my cosworth has just snapped after 4 miles and cant see why . it started and run fine then drove it and snapped as i pulled away . its a ford belt made by gates. im was so gutted
Last edited by kaking1982; 27-10-2009 at 06:03 PM.
27-10-2009, 06:07 PM
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i dont think i did but it did whine a bit when started the car but it was not tighter than i have done any other cam belt . it had a new ford tensioner and a new nut
27-10-2009, 06:15 PM
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Hmm sounds like something has snagged the belt i'd of thought? even a fairly tight tensioner would prolly whine or make noise before it snapped the belt i'd of said?
27-10-2009, 06:19 PM
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it was a fresh engine rebuild just been put in car and finished off but it had run on the spot a fair few times and revs held higher aswell and no problems
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27-10-2009, 07:12 PM
#12
just ask jb what can go wrong when you have belt problems, his one simply stripped a few teeth of but ended up needing a bit of a rebuild
you may get away with a few bent valves, just mke sure they've not smashed the guides or the tops of the pistons
good luck for tomorrow
you may get away with a few bent valves, just mke sure they've not smashed the guides or the tops of the pistons
good luck for tomorrow
28-10-2009, 07:51 AM
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gutted i know exactly how it feels x2 cossies well one on my 3 door and the other on starting my mates sapphire up and it dropped a valve =new pistons,head etc etc and the fkn thing still isnt right cost me a fortune
really is sickining
hoppe you get it sorted asap and it aint much
really is sickininghoppe you get it sorted asap and it aint much
Last edited by CRAIG HAYTER; 28-10-2009 at 07:53 AM.
28-10-2009, 05:03 PM
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engine out and stripped i have bent 11 valves and im glad i have taken it apart i have also found out that 4 of my block studs have striopped and come out it had blown the head gasket on number 2 cylinder so the car wouldnt of lasted very long but on the up sisde the valve guides are ok and so are the seats
28-10-2009, 05:32 PM
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engine out and stripped i have bent 11 valves and im glad i have taken it apart i have also found out that 4 of my block studs have striopped and come out it had blown the head gasket on number 2 cylinder so the car wouldnt of lasted very long but on the up sisde the valve guides are ok and so are the seats
ALL this on a freshly built engine????????? who BUILT it?
28-10-2009, 07:07 PM
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i just built it but the tuner before that had just done it before i bought the car and the owner knock the big end out within 400 miles so thats how i got it so fitted new crank and rods and bearings and a few other bits but i never noticed the head studs being lose
28-10-2009, 08:40 PM
#25
When my timing belt went it was because the timing belt tensioner stud came lose out the head, just enough to let the belt become slack.
It bent all 16 valve marked all the pocket pistons and had to replace some of the guides.
So please make sure you lock tight the f*ck out of the tensioner stud going into the head, and use a new lock nut on the tensioner.
I've marked my stud with a horizontal line on the end of the stud so i can see if it ever starts to move again.
Good luck with yours
It bent all 16 valve marked all the pocket pistons and had to replace some of the guides.
So please make sure you lock tight the f*ck out of the tensioner stud going into the head, and use a new lock nut on the tensioner.
I've marked my stud with a horizontal line on the end of the stud so i can see if it ever starts to move again.
Good luck with yours
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