Rocker Shaft Nut Torque Spec

[HMeeder]

Anyone know what it is? I can't seem to find it in Haynes and the 914 Club Torque Chart doesn't list it. This is the nut that secures the shaft ends to the head. Total of 4 per side.

As ever, many TIA

Herb

BTW this is for the 1.7 if that makes a difference.

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Herb
'72 1.7 Tangerine 'Teen
'74 2.0 Red Rustmobile

[Conrad W Peden]

7 or 10 ft/lb not sure.

cant make too much diff.

[scotty914]

10 I JUST CHECKED

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scott thacher
75 1.8 running at last
75 under rust
(fine german rust)

[Dave Thompson]

Haynes says 10, but the How to Rebuild Air Cooled Volkswagen guy says 18. I would go a little lighter than 18 though, as I just stripped a couple of nuts two days ago!

Appreciate anyone else's response to this, too. Have any of you found the VW Rebuild book to have any other significant differences from Haynes, etc?

[Jake Raby]

18 ft/lbs will shear the threads in two turns of the wrench!!!]]

The absloute tightest on these weaklings is 12 ft/lbs, I use 10 with red loctite.

I very seldom use the stock studs, we change to chromoly units for dual spring applications, or stock type 1 units for slightly more tensions on single springs. I then use an 8mm head stud nut (grade 10) and torque them to 18ft/lbs....

[TimW]

Hey Dave what page is that on in the Rebuild book? I want to go make a note for future reference.

One ~difference~ I’ve seen is Tom recommends using Permatex or RTV on push rod return tube O-rings (p.137), others say don’t. ...and no, I don’t want to bring up that debate again .

[HMeeder]

I did torque to 10 ft/lb according to the posts earlier. A friend of mine loaned me Hussey's 700 Tech Tips book and it says 10 ft/lb in there as well.

A cautionary note: Do not overtorque studs in the heads! I have had tremendous problems the last couple of days with stripped exhaust studs. Fortunately where I live in San Diego we have many VW Dunebuggy specialty shops and I got a recommendation to tap out for a 9mm/8mm 'stepdown' stud that was created for exactly this problem. Worked out great! The heads are an aluminum alloy I believe, and they just can't take the kind of torque that my GMC 350s iron heads can.

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Herb
'72 1.7 Tangerine 'Teen
'74 2.0 Red Rustmobile

[Dave Thompson]

Crikey!

Am Iglad I dropped in on this thread when I did!?

Tom Wilson' "Rebuild" book says 18 ft/lbs for the rocker nuts on page 136, then later on page 154, in the Torque Spec table it says 10 ft/lbs! I just went through this following the book last year, but I forgot to look first to the spec table before torqueing down stuff. Fortunately for me, my engine is still sitting on the garage floor so I can rush out and remove the rocker covers and retorque those nuts before disaster strikes.

I love this Tech Forum!!!
Thanks to all of you,
A much-relieved Dave Thompson