STD Tuning Drivetrain Flywheel bolts

Flywheel bolts

Flywheel bolts

 
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Biocruzer
Naturally-aspirated

10
01-31-2015, 11:12 PM #1
Hi, I'm changing a 300D auto gearbox for a 4-speed 240D slopeback box with 240D bitznpieces. The auto flexplate bolts are too long (about 10mm) for the manual flywheel - are the manual bolts torque-to-yield? If not, what torque do I need, and can I safely use standard high tensile bolts. Is it the auto thing of 30-40 lb-ft + 90-100 degrees? Will HT bolts stand up to this? If they are t-t-y, what part no do I need to chase for the necessaries?
Cheers
Biocruzer
01-31-2015, 11:12 PM #1

Hi, I'm changing a 300D auto gearbox for a 4-speed 240D slopeback box with 240D bitznpieces. The auto flexplate bolts are too long (about 10mm) for the manual flywheel - are the manual bolts torque-to-yield? If not, what torque do I need, and can I safely use standard high tensile bolts. Is it the auto thing of 30-40 lb-ft + 90-100 degrees? Will HT bolts stand up to this? If they are t-t-y, what part no do I need to chase for the necessaries?
Cheers

Torkey
Dirty Diesel

220
01-31-2015, 11:46 PM #2
I did the sMe thing. There is a VW bolt that works great for this application. They are stretch bolts but I have successfully used them with just loc-tite. I'll dig up the part number and post the link. ( and they are way cheaper than the MB bolts)

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
01-31-2015, 11:46 PM #2

I did the sMe thing. There is a VW bolt that works great for this application. They are stretch bolts but I have successfully used them with just loc-tite. I'll dig up the part number and post the link. ( and they are way cheaper than the MB bolts)


79 300CD
82 300SD
Dirty Little Freaks Racing

Torkey
Dirty Diesel

220
02-01-2015, 11:18 AM #3
Here's a link to the ones we use. You need to get a star bit to drive them. I found one at AutoZone for cheap.

http://www.autohausaz.com/pn/N90539801

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
02-01-2015, 11:18 AM #3

Here's a link to the ones we use. You need to get a star bit to drive them. I found one at AutoZone for cheap.

http://www.autohausaz.com/pn/N90539801


79 300CD
82 300SD
Dirty Little Freaks Racing

Biocruzer
Naturally-aspirated

10
02-02-2015, 05:37 AM #4
(02-01-2015, 11:18 AM)Torkey Here's a link to the ones we use. You need to get a star bit to drive them. I found one at AutoZone for cheap.

http://www.autohausaz.com/pn/N90539801

Thanks, Torkey. I'll give them a try.
Cheers
Biocruzer
02-02-2015, 05:37 AM #4

(02-01-2015, 11:18 AM)Torkey Here's a link to the ones we use. You need to get a star bit to drive them. I found one at AutoZone for cheap.

http://www.autohausaz.com/pn/N90539801

Thanks, Torkey. I'll give them a try.
Cheers

Druk
Holset

297
02-02-2015, 09:25 AM #5
The Haynes manual for the 300D gives 22lbft + 90deg for a standard flywheel bolts and 30lbft + 90deg for a dualmass.

iirc these bolts are metric extra fine and will be grade 12 high tensile.


.
This post was last modified: 02-02-2015, 10:38 AM by Druk.
Druk
02-02-2015, 09:25 AM #5

The Haynes manual for the 300D gives 22lbft + 90deg for a standard flywheel bolts and 30lbft + 90deg for a dualmass.

iirc these bolts are metric extra fine and will be grade 12 high tensile.


.

wolverine
TA 0301

57
02-04-2015, 08:56 PM #6
I used ARP bolts. This is the set
http://arp-bolts.com/kits/ARPkit-detail....ordID=1216

You have to buy 2 kits though
wolverine
02-04-2015, 08:56 PM #6

I used ARP bolts. This is the set
http://arp-bolts.com/kits/ARPkit-detail....ordID=1216

You have to buy 2 kits though

 
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