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Here are some updates.......engine coming together.......going to dyno soon........



Old 04-10-2019, 06:30 PM
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Going with carbon fiber shroud........


Old 04-10-2019, 06:31 PM
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Oil coolers replaced.........




Old 04-10-2019, 06:35 PM
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Engine assembled.........







Old 04-10-2019, 06:39 PM
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Engine in !!!!







Old 04-10-2019, 06:41 PM
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Really nice - I wish my engine builder took note in terms of pics and updates; it appeared to
Be a chore to him to let his customer know what was going on...

I’ve not seen those pistons before, nice option
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Old 04-10-2019, 11:40 PM
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Sure do enjoy Steven's tools.
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Old 04-11-2019, 12:48 AM
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Quote:
Originally Posted by gwag View Post

Just curious... I don't see any locking tabs on the oil pump nuts?
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Old 04-12-2019, 08:36 AM
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Originally Posted by gwag View Post
Great question. Piston were essentially new so didn't want to get new but you make a good point.

You are correct that they are designed for single plug but dual plug will still have added benefits from what I understand.

Does anyone think that the wedge-dome design somehow will be 'bad' with the dual plug setup??
I was looking into doing twin plug on my 3.2, but realized the costs get rather high. Getting the heads drilled for a 2nd plug is cheap compared to finding a distributor and ECM and ignition setup to handle the added spark.


I decided to stay single plug with the same 3.4 Mahle Max Moritz design 9.8 compression P&C (my 3.2 pistons had valve slap on them and were alusil).

But also going with 964 cams, Aasco springs and retainters for higher redline.


BTW... REALLY love these pics. I wish someone would just create a video of EVERYTHING they do to build the engine.
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Old 04-12-2019, 08:47 AM
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Quote:
Originally Posted by Trakrat View Post
I was looking into doing twin plug on my 3.2, but realized the costs get rather high. Getting the heads drilled for a 2nd plug is cheap compared to finding a distributor and ECM and ignition setup to handle the added spark.


I decided to stay single plug with the same 3.4 Mahle Max Moritz design 9.8 compression P&C (my 3.2 pistons had valve slap on them and were alusil).

But also going with 964 cams, Aasco springs and retainters for higher redline.


BTW... REALLY love these pics. I wish someone would just create a video of EVERYTHING they do to build the engine.
There is Trakrat
https://m.youtube.com/watch?v=HqTJ2lgVEKY, if the link doesn’t work search “The Canary Files” this guys documented his entire engine rebuild on YouTube
I’ll be doing the same when I rebuild my 964 engine later this year when I finally get my garage built
Old 04-13-2019, 03:34 AM
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Trackrat - The legendary Carroll Smith believed locking tabs don't work. He suggested "prevailing torque" nuts. I suspect nylocs, though less positive, would do.

I'd have to look at the other case half to be sure, but maybe the nut couldn't come all the way off anyway when the case is together? Only the upper nut is subject to tension with the pump turning. The force would vary with RPM, which is a minus for the nut staying put, but maybe not really enough to loosen a properly torqued regular nut?

One doesn't hear about these nuts coming loose, though.
Old 04-13-2019, 03:13 PM
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Quote:
Originally Posted by Mike Billings View Post
Beautiful work. Make sure he turns that head around 180 degrees!
Quote:
Originally Posted by Trakrat View Post
Just curious... I don't see any locking tabs on the oil pump nuts?
Probably used wave washers and locktite
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Old 04-13-2019, 06:24 PM
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What do you think Smith thinks about the ability of a wave washer to add anything significant to the stretch of a fastener? To be sure, Porsche used them in some applications, like under all those nuts holding the cam carrier onto the heads.

Loctite maybe, though if Smith is right about the tabs, with the standard torque for an 8mm stud, maybe any flat washer is fine with a standard nut. The washer keeps the nut from gouging the aluminum of the pump.
Old 04-13-2019, 08:27 PM
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Cross threading....

"Cross threading is almost as good as Locktight"
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Old 04-14-2019, 07:11 AM
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"Cross threading is almost as good as Locktight"
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I like to tighten it until it strips, then back it off a quarter turn
Old 04-15-2019, 11:08 AM
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Amazing thread .....
Old 04-16-2019, 03:59 AM
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Well done! Great photographic detail.
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Old 04-16-2019, 10:18 AM
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what size/part number are those Bosch spark plugs you're using there sir
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Old 04-16-2019, 02:57 PM
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Nuts in that picture of the oil pump installed are actually nyloc style like those used on the valve covers. Like Walt said, the "top-lock" prevailing torque nuts are a better choice here. Nyloc don't provide a lot of locking effect
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Old 04-18-2019, 10:01 AM
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Interesting choice to use nylocks inside the motor. Porsche never did that, and there are mechanics that recommend against it. Loctite would probably do the trick. How can locking tabs fail anyway?
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Old 04-18-2019, 04:19 PM
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