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+--- Thread: Torque setting for con rod nuts? (/showthread.php?tid=7579)
Torque setting for con rod nuts? - Ben - 01-11-2012
Need the torque setting for the connecting rod nuts. In the Haynes it gives a setting for 'big-end bearing cap nuts', which is 20Nm and then 70 degrees. But I thought big end bearings were the crankshaft bearings. There isn't any other settings which could be either of them though.
Also should I be using locktite or simular? Seems a bit strange that important nuts aren't lockers, especially when they are in oil..
RE: Torque setting for con rod nuts? - ginge191 - 01-11-2012
Which con-rod nut settings are you after if its not for the crank end? have i missed something...?
I'll browse servicebox, might have some interesting specs on there
RE: Torque setting for con rod nuts? - Ben - 01-11-2012
Yeah it is the crank end. I meant that I thought 'big end bearings' referred to the 5 crankshaft bearings.
Just found a setting for 'main bearing cap bolts'. I assume that's the crankshaft one..
Looks like 'big end bearing cap nuts' is referring to the conrods then.
RE: Torque setting for con rod nuts? - ginge191 - 01-11-2012
Yeh i'm looking at the same thing on servicebox..
Can only get the spec for the bolts themselves, no torque settings, if any use :/
RE: Torque setting for con rod nuts? - Matty - 01-11-2012
That's correct Ben. (big-end bearing cap nuts is what you want.) I didn't use locktite.
Someone will be along to correct me no doubt. haha.
RE: Torque setting for con rod nuts? - Ben - 01-11-2012
Cheers for the replies guys, ill crack on in the next few days then
RE: Torque setting for con rod nuts? - Ricky - 01-11-2012
There's a thread on here somewhere with the torque setting from Autodata, it's different to the Haynes manual.
RE: Torque setting for con rod nuts? - Ben - 01-11-2012
Hmm so which do you trust?! Il have a look for the thread
RE: Torque setting for con rod nuts? - Ricky - 01-11-2012
I used Autodata setting, it was like 50NM or something, I will have a look.
EDIT: CLICKY
RE: Torque setting for con rod nuts? - Matty - 01-11-2012
Yea, autodata says 50Nm, that's it.
I did mine at 20 Nm + 70 degrees when I had mine...
EDIT: Look below at "Possibly Related Threads..."
RE: Torque setting for con rod nuts? - Ben - 01-11-2012
Not sure which to use really. Is Autodata a reliable source?
RE: Torque setting for con rod nuts? - Matty - 01-11-2012
Well, it's what a lot of garages use for their data/information.
Not sure if it's a reliable source though, but I'd imagine it is to be honest...
If it was me, I'd be doing 20Nm + 70 again. But meh, that's me.
RE: Torque setting for con rod nuts? - Ben - 01-11-2012
Oki doke, ill just use which ever takes my fancy when it comes to tightening them up. Cheers for the replies
RE: Torque setting for con rod nuts? - Ricky - 01-11-2012
I can't see there being too much difference in the final tightness between the two anyway. But I would/did choose autodata.
RE: Torque setting for con rod nuts? - Dave - 01-11-2012
Always done mine as per haynes, 20 + 70 I think. Your thinking of main bearings, which is crank. But the ones you need is big end bearings
RE: Torque setting for con rod nuts? - Ruan - 03-11-2012
Big end caps are the conrod caps yeah, it's main bearing caps that bolt to the block