Torquing the Cylinder Heads on flat four

gotthebug65 Slammed & Awesome Dubber

81 posts · joined Apr 2012 · 12 May 2013, 4:34 pm

#955372

Im just wondering how strickt must you be when putting the heads back on. i just fitted new push rod tubes and nipped the heads up in a even sequence in stages.... to approx 23-25 foot pounds

just read up a bit on it now ha ha

i kicked it over it fired then stopped. checked the left head and it was slightly leaking i think i missed the bottom four nuts on the final tighten up.

so i nipped them up and seems ok still not starting as battery a bit flat , charging now

gotthebug65 Slammed & Awesome Dubber

81 posts · joined Apr 2012 · 12 May 2013, 7:53 pm

#955408

car is running who hoo.....

bajachris88 The international telephone dialing code for Antarctica is 6

6,661 posts · joined Apr 2005 · 12 May 2013, 8:16 pm

#955420

There is a torque sequence. You don't want it too tight either! Its imperative for longevity you should follow such, as tension in the head studs will grow as components expand with heat, and its only soft aluminium on the heads being sandwiched into the iron barrels.

Heres a website that directs you the procedure:

http://www.vw-resource.com/heads.html

(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!

gotthebug65 Slammed & Awesome Dubber

81 posts · joined Apr 2012 · 13 May 2013, 6:58 pm

#955530

bajachris88 wrote:There is a torque sequence. You don't want it too tight either! Its imperative for longevity you should follow such, as tension in the head studs will grow as components expand with heat, and its only soft aluminium on the heads being sandwiched into the iron barrels.

Heres a website that directs you the procedure:

http://www.vw-resource.com/heads.html

cheers

shaihulud Custom Title Time!

1,448 posts · joined Nov 2005 · 16 May 2013, 4:02 pm

#955878

The sequence for tightening the nuts changes as you do it.

There is one sequence for the first tightening and then it changes for the final tightening.

Get a manual and do it right,