Case cleaning and more case cleaning
 

I cleaned my case by pressure washing, soda blasting and re-pressure washing. Came out pretty clean, but not clean enough for my liking.

Tonight I mounted each case half to the engine stand for a detailed cleaning.

I cleaned the head stud threads using a homemade thread chaser made from 2 of the used dilvar head studs:

http://forums.pelicanparts.com/uploa...1386566795.jpg


http://forums.pelicanparts.com/uploa...1386566844.jpg

I also scraped out most of the old sealant where the case through bolts and perimeter bold pass (flat head screwdriver with sharp edges). This helped the case mating quite a bit - previously the case halves went together rather tight, and once together, they didn't want to separate again. There was quite a bit of sealant in outer edges of the perimeter holes.

Additionally, I cleaned up the through bolt holes and oil passages (HF sells a great engine cleaning brush kit for ~$15). I brushed, sprayed with carb cleaner and then punched a Kimwipe through the holes where I could. I found my bendable magnet worked as a great bore punch to push a Kimwipe through the holes; similar to this:

http://forums.pelicanparts.com/uploa...1386567589.jpg

Lots of black stuff on the Kimwipes with first pass...

Finally, I rotated each case half 1/4 turn to to get a good view that allowed detailing inside and out. I wasn't too concerned with how the outside of the case looked - clean was the objective...

Case halves are clean and ready for my next step:

http://forums.pelicanparts.com/uploa...1386567355.jpg

http://forums.pelicanparts.com/uploa...1386567447.jpg

Enough for one night.

Gordo

Looking good. Im going to have mine media tumbled then have all the oil passages R&R. I am debating on doing the caustic soda treatment before so that I can get that nice dark mag look. After a nice soak in an ultra sonic bath should do the trick. Love the home made tap, lol.

I absolutely love how Porsche designed the case to be curvy and sexy.

Ha-hah!....er, okay! :eek::p

OP - nice job. Quite cathartic, isn't it?

One of the "old tricks" was to de-flash the insides of cases.
When the cases are first molded or poured...the sections of the form...where they come together sometimes form a thin ridge or flash....these can break off during operation...so removal is necessary.
Other than that...polishing can help with oil flow back to the scavenge pump (smooth = faster flow).
Keep up the good work.
Bob

Spenny, I'm serious!!! Do you see the curves? Someone with an artistic flair could get a gorgeous woman with a cute rear to lean over at the same angle and get the girl and the case to look amazing in a single pic.
Or maybe I have just spent too much time cleaning cases with qtips before I put them back together.
I really do think it's artistic. Hell, Ferry coulda just squared everything off and made it much cheaper to produce.

I'm with you brother - I've seriously wanted to put some of my refinished Porsche parts on the fireplace mantle so I could admire them... artful, purposeful engineering.

Gordo

When you look at the case from a manufacturing/machining perspective, it's pretty amazing how much work goes into producing the end result. Pretty darn impressive design, given its age.

Hi DSPTurtle,

I love the creativity and how elegantly and tastefully you described this. I see a an artistic (PG/PG13) poster in your future that you would sell to all of us. Do some rough sketches and present it to a photographer to bring it to life for you. Oh, and don't forget to add some RS racing stripes at the bottom and name it using the original RS/RSR text. Hmmmmm, T-shirts? Then for laughs, pose for one as a gift for your wife. Seriously, you're on to something.

Best,
dmark9

I thought about this a few times when I had my engine all freshly coated and waiting to lift back into the car. It would make a fine coffee table with a thick piece of glass atop the Weber trumpets. I've often considered an engine swap so it may become a reality for storage.

I intend rebuilding the engine later, but for now want to do some clean up in the engine bay. I have removed the alternator and fan which require bead blast, they are in very poor condition. Does anyone know what would be the factory finish for these items, i don't want to paint them.