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      12-04-2017, 04:41 PM   #47
mattfwalters
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Drives: 06 Z4MC (Sepang/Sepang/insane)
Join Date: May 2014
Location: Vancouver, BC

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Quote:
Originally Posted by Swashplate View Post
And as epic as we are all picturing...
+1

Quote:
Originally Posted by Efthreeoh View Post
Just found this thread. You have an illness .

The insides are so pretty doesn't it just make you cringe to know you eventually will fire the thing up...

And... I thought I made myself a nice shop. I'm slightly jealous.
Yeah, I've got a fever, and the only cure is more cowbellhorsepower! Thanks for the kind words about the shop. It's a bit of a mess, but it is pretty much the working space I've always wanted to have, so I'm very grateful to have it. And yes, the brand-new internals are pretty, but I am 100% fine with them getting dirty if I get the results I'm after.

So: finally some more progress. I'm still not where I want to be, but between need-to-do items around the house, work demands, and preparing for a bit of a trip (3 weeks in Ecuador - motorcycling, diving in the Galapagos, and spending time in the Amazon), my free time has been close to nil.

I did get the head installed yesterday, though. The bit of soreness in my back and shoulders today (along with a bruise on my palm) is a good indication of how much work it is to torque and triple-check 14 nuts to 105ft-lbs.

I did a little bit of math, just for giggles:

35ft-lbs x 14 x 2 (double-checked): 980ft-lbs
70ft-lbs x 14 x 2 (double-checked): 1,960ft-lbs
105ft-lbs x 14 x 3 (triple-checked): 4,410ft-lbs
Total: 7,380ft-lbs of torque applied to head nuts. Next time I'm upgrading from the 18" ratchet to a 24".

The install / torque process was very straightforward. ARP specifies a 3-stage torque (per above: 35, 70, 105 ft-lb steps) for lubricated washers / nuts / studs. Minor note for posterity: if you have a stripped head, your life will be easier if you re-install the galley plugs before installing the cam follower shafts. I have long hex bits (~6" shafts on the bits), and they barely cleared the follower shafts - I had to use them at a slight angle to avoid contact. Not a huge deal, but a good thing to know.

Also: it's really hard to get some of the nuts to 105ft-lbs on a wheeled engine stand. I ended up doing some fun contortions to keep my body weight low, the socket upright, and the engine stand planted.

As always, some S54 porn:













n.b. the engine isn't actually drooping that dramatically on the stand, it's just a perspective trick from the wide angle of the iPhone lens. I think.
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