Longer wheel bolts for Pedrini wheels, Do you need the long bolts or can you use stock |
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Longer wheel bolts for Pedrini wheels, Do you need the long bolts or can you use stock |
Green626 |
Apr 17 2023, 11:56 AM
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#1
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Newbie Group: Members Posts: 9 Joined: 22-March 23 From: Washington State Member No.: 27,242 Region Association: Pacific Northwest |
All,
I just purchased a set of Pedrini wheels for my 1972 1.7 - it sounds like I might need longer wheel bolts - I wanted to find out if that was required or if I can clean up and use my stock bolts. thanks for the info |
brant |
Apr 17 2023, 12:00 PM
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#2
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914 Wizard Group: Members Posts: 11,624 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
depends what bolts and wheels you had prior to the pedrini's
the stock steel wheels came with shorter bolts all of the mag wheels came with longer bolts from the factory so if your replacing steel... yes you will need to find used or new bolts that have the correct length... but also the correct seat-face for the wheels. brant |
Green626 |
Apr 17 2023, 12:12 PM
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#3
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Newbie Group: Members Posts: 9 Joined: 22-March 23 From: Washington State Member No.: 27,242 Region Association: Pacific Northwest |
I currently have a set of riviera wheels - looks like they use the stock 19 mm head short bolt
but it sounds like I need the longer bolts. |
brant |
Apr 17 2023, 12:20 PM
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#4
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914 Wizard Group: Members Posts: 11,624 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
sounds like it.
used ones come up from time to time here. but pretty sure I recall, someone is selling the correct ones aftermarket also... maybe 914 rubber? not certain... just remember seeing them somewhere available aftermarket-new there are threads somewhere on this site with the discussion/measurement about it. brant |
mepstein |
Apr 17 2023, 04:21 PM
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#5
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914-6 GT in waiting Group: Members Posts: 19,273 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Pretty easy to tell. Do you have about an inch of bolt showing when they are seated in the wheel. You need enough threats to secure completely through the hub flange.
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914Sixer |
Apr 17 2023, 05:15 PM
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#6
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914 Guru Group: Members Posts: 8,882 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
You need 40mm long bolts. Measure that length from under the head. Bolts HAVE to be BALL SEAT. Here is some options. 20 pack so you get some extras.
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rick 918-S |
Apr 17 2023, 05:17 PM
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#7
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Hey nice rack! -Celette Group: Members Posts: 20,462 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
Also Ball Seat not tapered seat.
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Green626 |
Apr 18 2023, 08:25 AM
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#8
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Newbie Group: Members Posts: 9 Joined: 22-March 23 From: Washington State Member No.: 27,242 Region Association: Pacific Northwest |
Thanks for all the great information. now on to refinishing these wheels
Nick |
dr914@autoatlanta.com |
Apr 18 2023, 08:33 AM
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#9
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914 Guru Group: Members Posts: 7,864 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
have to use 40mm shank
We sell GOOD aftermarket ones that work and they are inexpensive All, I just purchased a set of Pedrini wheels for my 1972 1.7 - it sounds like I might need longer wheel bolts - I wanted to find out if that was required or if I can clean up and use my stock bolts. thanks for the info |
bdstone914 |
Apr 18 2023, 11:37 AM
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#10
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bdstone914 Group: Members Posts: 4,522 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
The correct length needed for alloys is 38mm. There are several suppliers of aftermarket lug bolts but most have a 17mm hex. Original bolts usually sell for $100-150 a set. Aftermarket ones are about $4 each. Make sure you get them for the ball seat not taper seat.
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davep |
Apr 18 2023, 04:34 PM
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#11
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914 Historian Group: Benefactors Posts: 5,143 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
Strictly speaking you only need the long bolts for the rear if I remember correctly. This is because the rear brake rotor thickness. I believe the standard bolts are long enough to fully thread in the front rotors. So a good set of used bolts for the rear would do it I think.
The other option is to fit studs in the rear rotors and use nuts; this makes it so much easier to mount the wheels. |
914werke |
Apr 18 2023, 05:24 PM
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#12
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"I got blisters on me fingers" Group: Members Posts: 10,066 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Its also worth noting that unless you have a matching Alloy spare, you need to carry x4 of the short non-alloy lug bolts.
The reason being if you ever find yourself changing a rear tire & install a Steelie (common to be carried as a spare) with the long bolts vs the short ones in the rear .... bad things will happen. |
bzettner |
Apr 18 2023, 05:31 PM
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#13
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Member Group: Members Posts: 211 Joined: 2-June 13 From: San Antonio, TX Member No.: 15,951 Region Association: Southwest Region |
Its also worth noting that unless you have a matching Alloy spare, you need to carry x4 of the short non-alloy lug bolts. The reason being if you ever find yourself changing a rear tire & install a Steelie (common to be carried as a spare) with the long bolts vs the short one in the rear .... bad things will happen. (IMG:style_emoticons/default/agree.gif) AND, make sure you have a 17mm socket for the Pedrinis long lug bolts and a 19mm socket for the steel spare along with the (4) short lug bolts |
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