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Vq25 Bolt Torque

joshm35

By joshm35,
in Four Door Family & Wagoneers

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scotty nm35 Grand Master

scotty nm35

Posted
Posted

Not much, the rocker cover will deform if you do them up too tight, the hardest part is making sure the rubber seal is in place before you tighten them. Use a 1/4 inch ratchet so you don't get much leverage.

When doing the plenum bolts, just remember how much force it took to crack them and do the reverse. The only bolts I torqued when rebuilding the engine were the head studs and the cam caps (as they are the critical ones).

Daleo Grand Master

Daleo

Posted
Posted (edited)

The rocker cover bolts are only a shouldered M5 bolt, nothing more than 6-8 Ft/Lb.

So nipped up with a 1/4" ratchet a bit more than hand tight will do. You only want to bottom it out against the shoulder.

As for the Plenum bolts; I reckon 20-22 Ft/Lb; no more. wipe a little grease/antisieze on the threads, and the underside of the head/washer, so they go in nice & smooth.

I do all that sort of stuff by feel, but those numbers will translate onto a torque wrench. As Scotty said; not particularly critical , but some people like "Tight is right"; all this does is stretch bolts, damage threads and cost you time if it goes wrong.

Edited by Daleo
Commsman Veteran

Commsman

Posted
Posted

Yeah so did mine. I was thinking of putting an adhesive in the gap the gasket goes in to make sure the gasket stays in place.

That's what I did the second time & it seemed to work well. I think that would be safe (minimal risk of getting into the oil) & makes the job easier.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

No sealant is required though, there are little rubber tabs to hold the gasket in place while you slide it on. Just make sure it doesn't fall off before you screw it down, no big deal. It's only the first one you will fudge up.

Sealants require pressure, which you don't have in this situation. If for some reason you wanted to re-use the gasket then it would be needed, not that I would suggest it. Remember the oil is built up behind the cover so it needs to seal well for no leaks.

joshm35 Veteran

joshm35

Posted
  • Author
Posted

I ended up applying an gasket sealant in the groove before pressing in the gasket just for the sole purpose of holding it in the groove. Waited 20 mins till it tacked and put it on. Not leaking at all. So pleased. Very suprised how quickly I got the intake off but easy once you get it in you head what to do. thanks guys for the help. I just did the cam cover bolts up just tight and torqued the intake bolts up to 22 lbs.

joshm35 Veteran

joshm35

Posted
  • Author
Posted

Yeah I had it booked in this friday to get it done. So im going to used that booked slot to get snapped exhaust bolt drilled out and front disks machined as they are slightly warped. Yeah the cam gasket was annoying but not as annoying as having to fork out $$ to get a mechanic to do it. I recommend doing it yourself if you have general mechanical skills.

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