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identifying ARP rod and head bolts
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10-27-2009, 03:08 PM
Post: #1
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identifying ARP rod and head bolts
Can anyone tell me how to check wether ARP bolts are in a engine or not.
Reason is that both rod and head bolts are Torx style while the mains and all the rest are hex type. Can I assume that the previous owner already invested in ARP bolts? It's a AE92GTi small port engine in a kitcar. |
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10-27-2009, 05:09 PM
Post: #2
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identifying ARP rod and head bolts
Are you thinking of reusing them?
 Best to replace the bolts/studs if rebuilding engine regardless.
![[Image: AEU86 AE86 - identifying ARP rod and head bolts]](http://i148.photobucket.com/albums/s15/karolex147/86LIFE.gif "AEU86 AE86 - identifying ARP rod and head bolts") RokuSteady : Shakotan - Tsuraichi - Hippari - Onikyan : 神奈川 様式 |
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10-27-2009, 05:18 PM
Post: #3
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identifying ARP rod and head bolts
ARP is geen bout maar een tapeind met een torx moer. die had ik in elk geval op mn civic blok. maar ik weet niet of er verschil in zit, die van mij waren voor 300+ pk namelijk
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10-27-2009, 05:33 PM
Post: #4
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identifying ARP rod and head bolts
haven't undone the head and rod bolts yet, and if they're ARP, I'm not going to touch them, if they're stock I would like to replace them with ARP, but would be stupid to replace them by ARP's if they're already are.
Slowboy2 yes the rod bolts are blind bolts with torx nut on it. Maybe I asked a retorical question. Maybe I should ask, does Toyota use torx bolts and nuts? Haven't found any yet apart from the head and rod bolts/nuts. |
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10-27-2009, 05:40 PM
Post: #5
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identifying ARP rod and head bolts
toyota gebruikt een kopbout nr 10 dier er uit ziet als torx. maar dan 12 kant geloof ik. let op. het ziet er uit als torx maar dit is het niet. je hebt eer een speciale dop voor nodig.
ARP is echt een los tap eind waar je daarna een moer van ARP dus opdraait. je hebt dus geen bout. ARP bestaat dus uit 2 delen. daar kan je het aan herkenen. |
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10-27-2009, 06:03 PM
Post: #6
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identifying ARP rod and head bolts
ARP Bolts, Studs and Nuts are stamped as such if they are 6 or 12 sided (dependiong on application) ARP or ARP PRO.
![[Image: AEU86 AE86 - identifying ARP rod and head bolts]](http://www.c5racer.com/catalog/images/arp%20flywheel%20bolts.jpg "AEU86 AE86 - identifying ARP rod and head bolts")
RokuSteady : Shakotan - Tsuraichi - Hippari - Onikyan : 神奈川 様式 |
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10-27-2009, 08:43 PM
Post: #7
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identifying ARP rod and head bolts
ik had dus waarschijnlijk pro. tap eind en losse moer als kopbouten.
weer wat geleerd 
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10-27-2009, 08:45 PM
Post: #8
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identifying ARP rod and head bolts
ok, thanks, going to check then.
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10-27-2009, 09:37 PM
Post: #9
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identifying ARP rod and head bolts
hmmm, no stampings, so no ARP?
damn, extra cash needed then. Want to make the bottom end bullit proof BTW, are 4age cranks and conrods balanced by default? mine got balancing dimples |
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10-27-2009, 10:33 PM
Post: #10
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identifying ARP rod and head bolts
I had the crank dimples on two tired old engines so I guess it's stock yes..
FABRICA MI DIEM, PVNC! |
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