Alternator tension bolt

Headlights to tailights and everything in between.

Moderators: Helpinators, Moderators

Post Reply
criticalm@ss
First Gear
Posts: 137
Joined: Sun Jan 02, 2011 2:44 am
Location: socal 951

Alternator tension bolt

Post by criticalm@ss »

So the head broke off my alt tension bolt that tightens the serpentine belt,it is still hanging in there does anyone know the pitch and size? can I use a standard bolt from the hardware store?
To take it out I am gona wrench 2 nuts against each other to get a bite on it
without jacking up the threads.
Always something sheesh.......
Thanks gang very much!
92 Leggy Wagon L~2003 Baja~2006 Sti
vrg3
Vikash
Posts: 12517
Joined: Sun Nov 03, 2002 2:13 am
Location: USA, OH, Cleveland (sometimes visiting DC though)
Contact:

Re: Alternator tension bolt

Post by vrg3 »

I would guess that it's M8x1.25 but even if I'm right I don't know if you'll find a metric bolt that long at the hardware store.

The Subaru part number is 34435AA030. This happens often so a lot of dealers keep them in stock. It should only cost like $6 or so. If you buy it from a dealer make sure they're not giving you the A/C tensioner bolt -- that one is left-hand threaded.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
kimokalihi
Fifth Gear
Posts: 8360
Joined: Mon Nov 06, 2006 3:41 am
Location: Tenino, WA

Re: Alternator tension bolt

Post by kimokalihi »

Junkyard will have tons of them too.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
vrg3
Vikash
Posts: 12517
Joined: Sun Nov 03, 2002 2:13 am
Location: USA, OH, Cleveland (sometimes visiting DC though)
Contact:

Re: Alternator tension bolt

Post by vrg3 »

Oh yeah, good point -- I believe all EJ engines use this same bolt, so a junkyard is a good bet.
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
criticalm@ss
First Gear
Posts: 137
Joined: Sun Jan 02, 2011 2:44 am
Location: socal 951

Re: Alternator tension bolt

Post by criticalm@ss »

Ok got the bolt from subaru, wron one they gave me LH thread.
So I went to home depot..nay. McfaddenDale had it for .80 cents.
The belt that is suppose to be oem is too big, maxed out the alt adjestment so I put a 34.5
inch belt and away i go.
92 Leggy Wagon L~2003 Baja~2006 Sti
Post Reply