| [ Total Views: 653 | Total Replies: 10 | Thread Id: 91123 ] |
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 baja_01
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| posted on June 19th, 2011 at 06:41 PM |
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Endplay setting question
Hi All
Setting the endplay on my new motor and found it was only 0.019".Shims I've got are only 0.009", so what's the go, machine flywheel or something
else?
Motor has a 8 dowel CW crank, bolt in sand seal and lightened flywheel. All new parts. Also #1 main bearing is seated and snug in the case.
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 matberry
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| posted on June 19th, 2011 at 06:51 PM |
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.019"....? is that without any shims?
You must use three shims IMO
They are available new in limited sizes
You need to set your endfloat to .0028-.005" (off the top of my head)
Some people set it to more, they like it loose to promote oil flow, but IMO this can be a problem as when you have your foot on the clutch, there is
pressure on one side of the bearing, with a larger endfloat clearance, oil will favour the loose side and the loaded side can starve of oil and get
damaged or even sieze.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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baja_01
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| posted on June 19th, 2011 at 06:58 PM |
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Sorry,0.019" without any shims. I'm aiming for 0.003"-0.004" so I'm thinking I might have to machine flywheel down a touch so I can use 3
shims.........
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grumble
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| posted on June 19th, 2011 at 08:27 PM |
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The shims come in various sizes to allow the correct end float to be achieved without machining components.
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matberry
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| posted on June 19th, 2011 at 08:51 PM |
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| Quote: | Originally
posted by grumble
The shims come in various sizes to allow the correct end float to be achieved without machining components.
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Unless the components are dimensionally incorrect. I'd check your parts thoroughly before machining anything. It is definately not normal to need to
machine the flywheel OR the crank.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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RISKY4LIFE
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| posted on June 20th, 2011 at 06:28 PM |
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i know about the 3 shims but why 3?
say if you can get 2 that are just right or 3 that are almost right
you nutters must know why 
or is it just follow the vw spec's
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grumble
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| posted on June 20th, 2011 at 08:36 PM |
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2 shims does not work,the design is 3 shims and after 60 odd years it is still right. The shims are available in different sizes for this reason.VW
spent a lot of time and money to design these engines and it shows in that they are still around.In over 40 years I have not seen any one successfully
use less even though they may say they did.
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psimitar
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| posted on June 21st, 2011 at 04:12 AM |
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Fit the metal gasket to the end of the crank. This will give an extra 0.1-0.15mm spacing.
Thinnest shim is 0.2mm I think. If still not enough float then machine the F/wheel. Easier than trying the bearing, case apart etc
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Kombi_Rescue
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| posted on June 21st, 2011 at 07:04 AM |
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In a 3 pack shim kit the center is a type of slip shim, thats why 3 are always used
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 vw54
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| posted on June 21st, 2011 at 10:17 AM |
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you may have thick saddle bearings
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matberry
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| posted on June 21st, 2011 at 10:46 AM |
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The pack of three slows the surface speed, so the one against the bearing is turning much slower, therefore less bearing wear.......well that's how I
imagened it.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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