SteveSEIW2000S
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| posted on 25/9/11 at 11:54 AM |
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Duratec Crank (End Float)
When fitting my gearbox to my engine earlier today I noticed that there is a small amount of movement (end float) in the crank.
Is this normal ??
The engine was from a low mileage (27K) 2007 Fiesta ST therefore I would not think the bearings should be worn at this point.
I have only replaced the rod bolts with ARP ones and obviously the sump therefore the crank has not been disturbed.
Any help / guidance would be appreciated.
Regards,
Steve
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big-vee-twin
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| posted on 25/9/11 at 12:12 PM |
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I have an ST150 motor and I haven't noticed any play/end float, its done 22k miles and from a 2007 car.
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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pjay
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| posted on 25/9/11 at 03:26 PM |
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From info I've seen the end float should be within 0.22 - 0.43mm (mine was 0.26mm).
http://duratec.wikispaces.com/Duratec_Engine_Specs
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SteveSEIW2000S
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| posted on 25/9/11 at 05:50 PM |
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Thanks for the responses.
I will check... just need to get a dial gauge.
Out of interest would this allowable amount of float provide what can only be described as a clunk when you hold the flywheel and then push and pull
it ??
End play
0.22-0.43 mm (0.008-0.016 in)
Thanks,
Steve
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Mark Allanson
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| posted on 25/9/11 at 06:29 PM |
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I had a spitfire once that when you pushed in the clutch, the fanbelt flew off!
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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rusty nuts
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| posted on 25/9/11 at 07:28 PM |
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quote:
Originally posted by Mark Allanson
I had a spitfire once that when you pushed in the clutch, the fanbelt flew off!
1500? They had a problem with crank thrust bearings for some reason
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Mark Allanson
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| posted on 25/9/11 at 07:45 PM |
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Erm - I know!
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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pjay
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| posted on 25/9/11 at 08:28 PM |
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Definitely would have got a clunk from a Spitfire when it's fanbelt flew off...
But seriously I think when I was checking the end float on my engine I could get a clunk. If you can get a dial gauge hopefully it will put your mind
at rest. Have to say I had a laugh trying to attach the dial gauge magnetic base because of the alloy block. I guess you could attach it to the
flywheel though?!
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SteveSEIW2000S
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| posted on 28/9/11 at 05:02 PM |
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Finally resolved......
Managed to borrow a dial gauge and measured at 0.31 so not bad at all, pretty close to mid point.
Amazing that 0.3mm feels like huge movement in practice.
Thanks for all the advice.
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pjay
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| posted on 28/9/11 at 06:49 PM |
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Excellent pleased to hear that. It's always good to be able to your own mind at rest.
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