Author Topic: lightened flywheel  (Read 3565 times)

Offline Simeon

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Re: lightened flywheel
« Reply #10 on: 29 July 2012, 14:26 »
Also, to do it properly it needs to be balanced on your crank with all pulleys etc fitted.

Offline Dave_IOW

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Re: lightened flywheel
« Reply #11 on: 29 July 2012, 15:52 »
I had mine lightened in Freshwater Doug, was an ABF one. Just had the face turned down to knock about 3kg of it.

Tried everywhere on the Island for someone to balance it, but couldn't find anyone.

Stuck it on in the end and didn't notice any vibrations or anything else.

Heard with cast ones it's not essential, but wasn't my own opinion, if I could have easily got it balanced, I would have..
Project: Mk2 20vT trackslag
Daily: Mk2 GTI typ19

Offline danny_p

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Re: lightened flywheel
« Reply #12 on: 30 July 2012, 00:09 »
Also, to do it properly it needs to be balanced on your crank with all pulleys etc fitted.

my approach when building motors has been to balance everything indevidualy that can be balanced indevidualy,  that way bits can be swaped without haveing to strip the motor for a full balanceing again.

if doing it really properly you need to do the clutch as well
all the VW's have gone bar 1.

Offline Simeon

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Re: lightened flywheel
« Reply #13 on: 30 July 2012, 12:52 »
Yeah, forgot to mention the clutch, I just pulled the whole crank assembly out of my G60 when I had my flywheel lightened and handed it over with the new clutch. Only cost £100 in total.

VW BUSH

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Re: lightened flywheel
« Reply #14 on: 30 July 2012, 20:29 »
I had mine lightened in Freshwater Doug, was an ABF one. Just had the face turned down to knock about 3kg of it.

Tried everywhere on the Island for someone to balance it, but couldn't find anyone.

Stuck it on in the end and didn't notice any vibrations or anything else.

Heard with cast ones it's not essential, but wasn't my own opinion, if I could have easily got it balanced, I would have..


Castings can vary quite a bit, structural uniformity and how they are handled and machined after the casting process is key to their natural balance. Billet machined parts are more uniform and balanced but trade strength for this over the cast parts.

I would say a Cast flywheel would be more likely to require balancing, saying that most cast engine parts are pretty good as this makes economic sense for VW to get it right in the first place.

PM me next time your stuck for a machine shop, I am well connected :smiley:

Offline daveyg

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Re: lightened flywheel
« Reply #15 on: 03 August 2012, 12:04 »
I also used hotgolf for mine, cant remember the cost but very happy with it