Just another 3.0 rebuild

[Mitch1]

I normally just read posts here and post mainly at Rennlist. So, Hi everyone. I'm new to the Porsche world, as I just bought my 83 911 SC back in December. Had a lot of oil leaks uncovered in PPI. Didn't really deter me, (maybe it should've). 6 months later I decided to drop the motor to address the oil leaks, mainly cam seals, rocker shafts, front and rear seals and oil cooler. One thing led to another and decided to do a rebuild with 123k on the motor. Got a thread going on Rennlist, but thought I'd share what's going on so far and maybe get some more advise from some of the engine builders here.
looks OK here:

Not so much here:

dropping motor.

out.

on the stand

head stud removal

head studs removed

case split

[Mitch1]

At this point I'm almost ready for reassembly. Heads were rebuilt at Zims. Did find #5dropped a valve from a broken spring. Piston was fine. Not sure how long it was like that. Dodged a bullet.

oil cooler back from Pacific Oil Cooler, 150.00 to clean and repair, great deal.

POC did the tank as well, replacement tank, mine has a big dent.

case cleaning. Ended up sending case to Ollie's for oil galley plugs removed and cleaned and hot tanked, probably wasted a lot of time.

doing the Supertec thing.

spent a lot of time here,

example of exhaust stuff ceramic coated

Zim's rebuilt head

crank back from Ollie's (great people there)

parts ready for organizing, cleaned or new.

[Mitch1]

parts organizing by operation. Ollie's did the rods to.

assembly table with stuff just on it. Haven't gotten everything organized yet. Haven't unboxed the case I got back from Ollie's yet either.

[bryant4]

great stuff!
For me especially cause you are about 2 weeks ahead of me on my 78sc.
Just got my heads back from Ollie's and waiting on my rods from them, too.

subscribed to see more...

Bill

[Mitch1]

Thanks Bill,
I think some of the things I've taken from this are the stuff you think is going to easy, usually isn't and stuff that should be hard is sometimes easier than you expect. Tools that you need sometimes take forever to acquire,

To get this off.


Needed this. Took 2 months on back order. (not that I'm in a hurry)


By far hardest bolt to remove. My upper head studs were way harder than the exhausts, required map torch and double nutting.


Took breaker bar and jack handle to remove pulley nut.


Organizing parts is something people don't talk about. Really time consuming.
Parts cleaning is also extremely time consuming and I'm sure there is an art to it.

[bryant4]

funny, my pulley bolt was also a major pain and when it finally came loose it made such a snap that I was sure I had broken the bolt. I didn't want to look.

[Mitch1]

Another lesson learned. Send torque wrenches out for cal well before you need them.
Dropped mine off locally, said 3 weeks on turnaround. Ugghhh.

[Mitch1]

Guys, I'm a little paranoid about rust getting on my the journals of my freshly polished crank.
Waiting on lab to get my torque wrenches calibrated, so may be two more weeks before I can start assembly. Sprayed the crank with PB Blaster, thought that might not be enough so I coated it with 20w-50 while it's sitting on flywheel and covered it with plastic. Is this enough?

[porterdog]

Get you some corrosionX; it's the bomb.

[bryant4]

that's plenty of protection, Mitch...

[Mitch1]

Thanks Bill. Starting to second guess a lot of choices right before I begin assembly.

[Harvs11]

I've recently started on a similar path, albeit with no plans to open the case. I'm in the cleaning parts while waiting for parts from PP stage. The main aim of my work is the old broken head studs issue. I don't want to hijack your thread Mitch but will be interested in your progress. Could you post a link to your Rennlist thread please.

[Mitch1]

http://http://forums.rennlist.com/rennforums/911-forum/753469-about-to-take-on-chain-box-covers.html

http://forums.rennlist.com/rennforums/911-forum/753469-about-to-take-on-chain-box-covers.html

[Harvs11]

Thanks, Mitch.
Reading thru your RL thread was reassuring in that I am having all the same panic/worrying thoughts about digging into my motor. It's a good read. I'm sub'd.

[bryant4]

that link doesn't work...

[willcall]

Good thread. I am looking at rebuilding my 3.0 and doing some upgrades at the same time. Like: 964 cams, 9.5:1 pistons, ssi exhaust backdate. Are you doing anything similar? Would be very interested in part numbers and suppliers if so. Cheers. BTW. Looks like they do a great job rebuilding the parts for you.

Road use only.
Looking at the MSD ignition upgrade too.

[Mitch1]

Sorry Bill. Think the new link should work.

@will call, no, I'm just doing a stock rebuild. Only because I'm trying to eliminate variables that might cause a screw-up on my part, piston to valve clearance, deck height and so on and I'm on a budget. Just trying to focus on as perfect of execution as I can and making the right choices as to where to spend money without breaking my budget. (I think that is the biggest riddle to solve, what do I replace, and what do I refurbish?) Cams and rockers have been on my mind lately. Maybe on the next one I'll do more performance mods. One of my main problems is that do not have the luxury of time. Getting blocks of time to work on the car is difficult for me.

Had a lot of good advise from guys like Ed Hughes, Reiver and Iceman, so hope that helps someone else.

[DSPTurtle]

Sounds like you're on the right track. Cleaning and organizing parts is 90% of the work. One hour of cleaning for every five minutes of assembly is the metric I use. Haha

[NOLAsc]

Mitch, I see Bill went to Ollie's for the head work. Any reason you picked Zims for the heads and Ollie's for other stuff? Having my heads re-done may be in the near future for me.

[Mitch1]

@NOLAsc, mainly I went with Zims for the head work because they were local to me. Darren also really knows his stuff. They've been my go-to for advise. I thought it might be a good idea to throw some work their way. Zims does not have a machine shop and they recomended Ollie's for crank, rods and case.