David Jenkins
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 posted on 11/4/02 at 10:39 AM |
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Skimming flywheels
How difficult is skimming the clutch area of a crossflow flywheel?
I have a big lathe (Colchester Student) with power feeds, so 'we have the technology'. I also have a couple of dial gauges to help with setup and to
check results.
There are really 3 parts to this question:
1. how do I get the dowels out?
2. What sort of finish is acceptable?
3. Do I machine right across the face, or only the bit the driven plate meets?
I've been quoted around £25 to get this job done by an engine rebuilders. Trouble is, they are shut on Saturdays, and I work in London from Monday
to Friday! 
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paulf
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| posted on 12/4/02 at 10:34 PM |
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Hi David just got to this list as the other one has cone a bit dead, In answer to your questions about skimming flywheels.
1 to remove the dowels if very tight grip them in a bench vice and twist the flywheel to remove.
2 You should skim the entire area of the flywheel face as otherwise you will be reducing the preload as the friction face to face distance is
increased.
3 aim for a good turned finish using a medium radius tool and fine feed. If there are hard spots in the casting it is sometimes a good idea to finish
with a slipstone held by hand whilst turning in the lathe, if you dont mind doing slightly dangerous things.
I have machined many flywheels for both cars and large industrial engines and usually car flywheels are no bother , the large tractor and lorry ones
can be another matter though especially if they have been allowed to slip for some time.
Paul.
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David Jenkins
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| posted on 15/4/02 at 07:43 AM |
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Ta very much!
The flywheel face is only slightly marked and in other circumstances I probably wouldn't bother to do anything about it. However, everything's out
of the car and the flywheel's sitting in a plastic box on the floor, so I might as well do it while it's easy.
cheers,
David
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locost7-online.com
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| posted on 13/6/02 at 06:17 PM |
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We can Skim your flywheel and remove dowels (without damaging them) and can lighten it
£24 skim and dowels
£10 extra to lighten it
We are in reading, Berkshire and open on Saturdays.
CC Engine Services
21-21a Milford Road Reading
0118 9677799
www.rollingroadtune.co.uk
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