Tensioner stud replacment ideas, bolt replacment etc.

[R32GT-R]

I don't want to have a Tensioner stud failure like i have heard several other people having. My original idea was to have one custom made but it is proving harder then i had thought. any ideas on where to find a better one, have one made or could i just use a high grade bolt instead.

Fastenal says they need a min order of 1000 pcs to custom order.

Figured:

I bought a grade12.9 100mm hex bolt from Fastenal, Free. Regularly $1.50

Brought it to a machine shop they machined off the head and threaded the body, 1/2 hr work cost $45.00

end result 12.9 grade tensioner stud. time will tell if it works. fingers crossed.

[JD74]

ARP Will sell direct for special orders and they don't need a 1,000 pc order.

I called them to get ARP2000 Main Bolts (not studs) and I was given the info to the 'Custom/Production Shop' where I spoke with one of the guys there.

You will be pleasantly surprised if/when you call their tech support. They are VERY helpful.

[NismoS-tune]

Before this blows up into a "All N1 oil pumps fail all of a sudden", "Rota wheels all over the world explode" or "the tensioner bolt failed several times" (I've only heard of this once thus far), just get a higher grade bolt from a bolt store. You should replace all your exhaust studs, intake studs, wheel nuts, oil pan bolts and what not, just in case... lol.

Seriously though, a good quality high grade bolt from a bolt warehouse should do. Maybe $5?

[r3gill]

yesss a good grade 8 bolt will do.

[R32GT-R]

so change from stud to bolt? anyone actualy done it?

[r3gill]

yea why not man. I haven't done that particular stud but common sense says you can as long as you get a solid bolt and torQue it to spec I don't see why its not gonna work.

[NismoS-tune]

wait, what? Are you talking about the idler BOLT or some other stud. Didn't "all those people" you mention shear a tensioner bolt?

[R32GT-R]

no where above did i say idler bolt, i said tensioner stud

[Skym]

I think tensioner stud was replaced on my cars engine (RB20DET) when cambelt was done the second time. It was recommended to fit a new tensioner stud when changing cambelt, bearings, etc.

[BenC]

Grade 8? those aren't much better than oem. Your going to want a 10.9 or even 12.9 if you can find it. I found the head on regular hex bolts are too big to fit with the tensioner. I couldn't get a wrench around it. A strong allen key bolt might work though
Off the top of my head I think the idler bolt is 10mm x 1.5 x 70mm. I have a couple 10.9s for free if anyone wants them

[malibusst]

grade 8 will snap..... trust me..... 12.9 is what you need, brafasco...... socket head cap screw

[R32GT-R]

cool i can get a 12.9 at fastenal for a dollar

[JD74]

cool i can get a 12.9 at fastenal for a dollar

Why not get a few 'Fastener Replacement Kits' together and sell them to the rest of us that are doing builds ?

I'll buy.

[M13]

Why not get a few 'Fastener Replacement Kits' together and sell them to the rest of us that are doing builds ?

I'll buy.

me too.

[R32GT-R]

how about i get the part number and you can head down to your local fastenal and save on the shipping costs.