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 ttriebler
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| posted on July 25th, 2010 at 01:40 PM |
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Need some measurements off vw flywheels pls
Hey all, looking at making some flywheel adaptor/spacers to fit Subie flywheels onto vw cranks.
As far as I'm aware there are the type 1 cranks with gland nut and 4/8 dowels and then the type 4 cranks with 5 bolts.
'll be making 2 different adaptors.
Can anyone please give me the measurement of the inside back of the flywheel, from the face that the endof the crank bolts onto, to the face of where
the oil seal sits. Just like in this pic :
How wide is that part of the flywheel 'tube' that comes down and sits on the oil seal? I.D and O.D.
Is this the same or different for the 5 bolt type 4 flywheels?
Thanks heaps dubbers.
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ernie norley
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| posted on July 26th, 2010 at 05:30 PM |
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Gday todd. Its 5.30pm bit dark in the shed but can get measurments tomorrow I have a standard beetle flywheel and a 2 ltr kombi so I will get both
probably the same measurements different bolt patern
Ernie
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ttriebler
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| posted on July 26th, 2010 at 09:16 PM |
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Thanks Ernie, that would be great! I managed to get a drawing of a type 1 8 dowel flywheel so I know the depth is 7.5mm, the I.D. is 53mm and O.D
70mm.
Here's the drawing if anyone ever needs one for reference :
Now I just wonder if I make a flywheel for type 1 without the 4/8 dowel holes, can I drill it for the 5 bolt type and for the 4/8 dowel type and use
it on whatever crank?
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on July 27th, 2010 at 05:46 AM |
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The back of a type 4 engine is much larger n seal and journal than type 1 by about 5mm.
I will see what I can find.
| Quote: | Originally
posted by westi
That's mad Alan.
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on July 27th, 2010 at 06:26 AM |
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Type 4 seal surface is 75mm diameter,
the back of the flywheel recess is 58.5mm,
but I do not have the tolerance of a crank, to tell you what type of 'fit' it should be.
The step is 8mm deep, again, I have no tolerance, and this governs the crankshaft 'end float'.
As close as I can measure the PCD is 42mm,
and there are 5 bolts holes of 13mm, which are probably to suit a 12mm bolt?(no wonder the damn things come loose!).
There is a single roll pin hole of 5mm on the same pcd, spaced evenly between two of the bolt holes.
Can't tell you the specs on the O-ring groove,
but anyone who has an O-ring in their posession should be able to measure the diameter for you,
and then you can calclate the specs baseed on the other drawing you found.
| Quote: | Originally
posted by westi
That's mad Alan.
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ttriebler
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| posted on July 27th, 2010 at 10:34 AM |
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thanks Dangerous, you are THE legend on this stuff
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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mackaymanx
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| posted on July 27th, 2010 at 12:04 PM |
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| Quote: |
Here's the drawing if anyone ever needs one for reference :
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Do you have it in a higher resolution? This blurs up too much when I zoom in.
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"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."
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ttriebler
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| posted on July 27th, 2010 at 03:40 PM |
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fixed
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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ttriebler
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| posted on July 29th, 2010 at 09:25 AM |
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Vewy vewy interesting. Seems the only difference between the types of VW flywheels is the OD of the seal 'tube' is 75mm on type 4/wbx and 70mm on
type 1. (and of course the way they are held on to the crank).
So it seems to me if I made flywheels with a 75mm od and 58.5mm id seal 'tube' they would fit type 4/wbx and I could turn them down to 70mm to fit
type 1 - an easy mod on a lathe. Then drill the centres as appropriate for the crank.
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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dangerous
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| posted on July 31st, 2010 at 07:31 PM |
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NO
The inside of the type 1 is 5mm smaller.
| Quote: | Originally
posted by westi
That's mad Alan.
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ttriebler
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| posted on July 31st, 2010 at 08:07 PM |
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sweet, a boring bar to machine off 5mm from the inside and 5mm from the outside. Seems easy as.
Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com |
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ernie norley
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| posted on August 7th, 2010 at 12:58 PM |
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Gday Todd sorry for delay finally dug out flywheels. I see you have verything But if I could suggest yoe make your flywheels to 2 ltr kombi size in
averall dimension I have the large 2ltr clutc in a 1600 flywheel not much room left for bolt holes the 1600 is 26cm across the 2 ltr kombi I have is
27cm
Ernie
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