Flywheel Lock

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Bareass
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Flywheel Lock

Post by Bareass » Tue Nov 19, 2013 9:10 am

Hi all,

I'm just about to start tearing apart my 24v. the engine is sitting on a pallet ready to be put up on the stand, but i want to crack the crank bolt loose before mounting it to the stand.

whats the best way to lock the flywheel to keep the engine from turning over?

Thanks
'84 GTV6 w/3.0
3.0L 24V engine stand!
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Giuliettaevo2
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Re: Flywheel Lock

Post by Giuliettaevo2 » Tue Nov 19, 2013 11:11 am

pull the plugs out and fill a cilinder with thin rope.. You will compress the rope against the head and stop the crank from turning further. Remember that you need to make sure the valves are closed in that cilinder!
Drive it like you stole it...
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Mats
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Re: Flywheel Lock

Post by Mats » Tue Nov 19, 2013 1:29 pm

What the... :shock:

Just use an air impact gun and it will come off real nice. Takes about ten seconds and nothing needs to be loaded up at all.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
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GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
Bareass
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Re: Flywheel Lock

Post by Bareass » Tue Nov 19, 2013 9:51 pm

thanks Mats, i'll give that a try.

if that doesn't work, is there any harm in wedging a pipe between some of the flywheel bolts and the skid it's sitting on?

also, what size socket do I need for it?

thanks
'84 GTV6 w/3.0
3.0L 24V engine stand!
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Mats
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Re: Flywheel Lock

Post by Mats » Wed Nov 20, 2013 1:30 am

I'd MUCH rather do that than loading up a conrod. :)

From memory it's 41mm(?), it's listed about a hundred times around this site so do a search.
Or just measure it.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-

GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
kevin
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Re: Flywheel Lock

Post by kevin » Wed Nov 20, 2013 10:44 am

Air gun always works well as it send shockwaves . Probably have to machine the outside of the socket as they don't normally fit like the Gedore type into the pulley . Best use two people as you can wedge a bar in flywheel studs real close to flywheel so you don't bend them . Only use bar to wedge if using air gun . If using pure leverage bars don't do this as you will bend the flywheel studs . Lastly you can copy the Alfa tool that fits into the flywheel teeth .
Sometimes it can take up to three minutes of constant shockwaves to crack the bolt .
Bareass
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Re: Flywheel Lock

Post by Bareass » Wed Nov 20, 2013 10:12 pm

thanks guys,

I took a electric impact gun to it.... pulled the trigger for about half a second, and it was off! I guess I really over thought this one.
lets hope the rest of the tear down and rebuild goes just like this! :roll:

ps. Mats, 41mm was right.
'84 GTV6 w/3.0
3.0L 24V engine stand!
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Mats
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Re: Flywheel Lock

Post by Mats » Thu Nov 21, 2013 4:47 am

:)
Sunshine story.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-

GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
Greg_Sef
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Re: Flywheel Lock

Post by Greg_Sef » Tue Dec 03, 2013 6:04 am

The EMPI VW flywheel lock works great.

Part# 5003

Usually about $10 on eBay with shipping. You want to use this when you torque that nut back on. Also for us Americans living in the land of inches and feet it's a 1-5/8" socket.

Greg
1972 Berlina Vintage Race car
1974 GTV Race Car
1982 GTV6 EP Race Car
"Angelina" 1987 Milano / 75 24 Hours of LeMons Race Car (best race car of the bunch)
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