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Freshly powder coated and ready for test fit. What a puzzle. I guess I didn't take enough pictures. Lucky they really only go one way so not too hard to figure out. I also Painted each and every bolt and nut to gold. and yes that is the original Heat exchanger. Looks great. form the old look.

I learned something I really think everyone should know about powder coating your engine tin. First it is a great idea. But, what ever you do. Do not and I repeat do not powder coat your Oil filler/breather can. I Did. and found out the sand used for powder coating will get inside the filler/breather can, clog the holes inside and drain sand and sludge into your engine, eventually tearing your engine to shreds. in less than a 1000 miles. I am getting mine chemically dipped and cleaned hopefully I do not need a new one. I will keep you informed if I have to buy a new can. I hope I don't.. Minor set back on finishing my engine. It sure did look good though.

Hi Spencer,

Set back on finishing your 912 restoration? It's just Murphy watching that you shouldn't go too fast with your project!

Luckily you found out in time! I hope the oil filler can be saved. Clean it and redo the powder coating. If you instruct the powder coater to keep the inside clean, he will be able to realize that. At the other hand, why take the risk if a good quality paint can do the job.

Otto

I'm taking the safe route, if the can is still good I am painting it. I'm not taking a chance on messing up the inside.

Hi SmileWavy

Such a good time I spent to read this thread even if unfortunately I couldn't all understand because of many technical terms but I do know a little bit in mecanic so I understand the essential.

Thanks a lot for this report of many steps of this rebuild and more for pictures you post regularly, you make a good job and you take the time to do it the best as you can

Well done and go on !

@aymericv59,

Une langue différentes, mais la même passion!

Please share some pictures of your 912. We love to see other projects from all over the world. Just open a new thread and show us your ride!



Spencer,

did the chemical stripping of the oil filler work or is the only way trying to get a replcement for it?

Otto

Remove the "s" from "différentes" and you are a perfect French :D You use Google Translate or you have experience in French ?

Unfortunately I don't have 912 or any Porsche but just some experience in this area...

Mother and grandmother where French speaking (Walon, Belgique). Unfortunately I didn't practise enough to speak and write it fluently and be able to use it as a second language, next to Dutch. Therefore gramatically it's far from perfect, as my English and German are ... Well, Google translations are even worse, I only use it as a great source for a lot of humor.

I hope you will be Lucky to own a Porsche one day. Perhaps you could be helpfull with your existing knowledge and experience.

Back to the topic. Spencer is indeed doing a great job.

Otto

I'm not far from Belgium :)

I'm 19, one day I'll get one, sure !

I hope I can help some guys on this forum, I here for this too :)

I'm impatient to see following :)

I received the oil can back from stripping. It is bare metal rusting as I touch it. I have sent it to my engine machine guy who is going to check it and test it for residue. I'll keep you informed. If it passes his test he will paint the outside to match powder coated shroud pieces. I'm praying I don't have to buy a new one. fingers crossed.

Spencer,

Is there any possibility to galvanize the filler. Specifically the inside will be protected against rust then. After galvanizing the outside can be finished as you like. That will take some time before you will be able to put it back on the engine, but I guess you will have something else to do in the mean time ...

Otto

So hopefully I found this just in time. I'm currently rebuilding a 912 motor and indeed I did have my oil filler/breather can bead blasted and powder coated. Having read your warning I inspected it. Thankfully i have not started the motor yet. I'm not sure however how it can cause the issues you described. Mine appears (by looking down the throat) to be an empty can with a breather tube in it. I'm not sure how it could accumulate any sand or sludge. Am I looking at the wrong part or am I missing something? Any thing you can offer to enlighten or advise me would be greatly appreciated. The last thing I want to dois kill the motor in 1000 miles. The car is being restored as my wife's Sunday car and reliability is paramount.

PS I'm loving this thread.

Laurence.

Laurance>
It is not sand as I stated but the powder coating process it self is the problem. the powder that is used turns grainy and course. If any of it is inside the can it will turn to sludge and will wreck your engine. My machine guy is the one who caught the problem with one of his customers. Three engines later and 80 grand worth. the man finally admitted that he had powder coated the Oil Breather can. I was talking to him when I mentioned that I had all of my engine tin done and how beautiful things looked. He immediately asked if I had done the oil breather can. I said yes and he told me this story and instructed me to get it stripped and send it to him to test and further clean. I am awaiting the decision on whether I need to replace or if it is still good to use. I will keep you informed. I trust his word for he has been a huge help in my restoration. I would not have chosen to rebuild my car if he had not been so helpful.

Just received an update on my oil breather can. It survived the chem dip and is in good condition. I will post a picture of it when I receive it. A $400.00 mistake avoided.

Spencer,

congrats with the good news! Is galvanizing an option to protect the filler?

Otto

Thanks spencer, good news is that I must be smarter than I give myself credit (well at least I actually gave this one a thought before I screwed up) . Because I didn't know how powder coating would react to oil or heat I only had the outside coated and left the inside bare metal. My theory is that, since there will be a constant mist of oil vapor floating around, corrosion inside the can is not likely to be an issue. I did the same thing with the rocker covers and oil filter housing. Thanks for taking your time to reply and glad to hear everything has worked out (albeit a cost) for you.

Laurence

Otto, I'm not sure but I will ask.

Laurence:
I agree with you - I don't recall ever seeing an oil filler or filter can rusting from the inside (excluding surface rust.) If someone is seriously concerned about coating the inside, there's always Glyptal paint which hotrodders/racers have used for many decades now.
Bill

Thanks Bill. I'll note the product name "Glyptal" in case I have an issue.

The inside will constantly be splashed with oil so no rust will have a chance grow from the inside of the can.