Cam Cap Bolts Neo

[BlindspottNZ]

Did the shims in my NEO the other day and the final bolt in the cam cap sequence decided to snap off in my head during the final torque...

Having abit of trouble finding new aftermarket ones, only ones I can seem to find are Tomei RB26 ones. They are a seperate stud and nut design like most aftermarket studs which is what I would prefer.

I'm not sure if they will be an exact replacement for the RB25 NEO ones?

Anybody know if A) I could use the Tomei RB26 ones or B) Anywhere that makes a set to suit my engine

Worst case scenario I'll have to use OEM ones but expect to be ripped off + they failed anyway so meh...

Thanks

[Ben C34]

How did you bust it?

Is your torque wrench out of calibration?

They are done up to a pretty low setting (can't remember) perhaps you went too tight.

First I've heard of one busting.

Edited June 23, 2014 by Ben C34

[BlindspottNZ]

They've just come in and out a few times, plus this one was in the middle right beside the exhaust ports so would have had the largest heat cycles

I did the head, put the standard cams back in, then changed to tomeis but didnt have the time to do the shims at that point, so out they came again... so yea this is really the 4th time they have been torqued up

[89CAL]

10-12Nm or something like that I think?

[BlindspottNZ]

but it is a pretty pitiful amount of torque to snap a bolt!

[Ben C34]

It's only a tiny bolt!

[BlindspottNZ]

which is going to make it lots of fun to remove

[jiffo]

Tiny stud and tiny torque, about 10ft lbs from memory.

Although they're a puny stud, the weakness is the nut.

It tends to bind up in the thread and if the OP had them on and off so many times, I'd say for sure that's the problem.

Torque reading would be useless and with bound up threads, you reach a situation where you can't tighten or loosen.

Next thing snapo.

Would be a rotten job to get out unless there's some stud protruding?

[iruvyouskyrine]

You may not want to wait 10 days but Amayama has them for $1.97 each out of japan

http://amayama.com/search/?q=13058-2J200&cur=AUD

Nissan part number 13058-2J200

[iruvyouskyrine]

Also tightening spec is

Step 1) 2.0 Nm

Step 2) 5.9 Nm

Step 3) 9.0 - 12 Nm

[BlindspottNZ]

Hey man thank you very much !

Do you know the number for the longer ones with the baffles on also?

No stud is protruding its in there deep

[iruvyouskyrine]

Not near my computer for a day or two but will check when I can for you mate.

[89CAL]

Part numbre for the bolts with studs out the top for the baffles is:

13058-5L700

[BlindspottNZ]

awesome thanks alot