Loads of Fun

[Porsche Chick]

I love these pics, it looks so (deceptively) simple when you show us all the steps. Very cool, I enjoy learning new things!

My hubby had a '75 911 (about 20 years ago) coupe with a magnesium engine, and it leaked oil everywhere, constantly. We were told that as the magnesium heats up (as it will on an air-cooled) that the magnesium expands, opening tiny gaps at the seams. And that the oil leaks would never really be solved because of the nature of the material. Is that true?

[Heiko]

Thanks for the comments...
Magnesium is very susceptable to corrosion if its not treated and cleaned properly making the surface very porous (especially in damp or wet climat). The biggest downside is that the magnesium is soft which causes bolts to losen quicker etc (this was a huge issue on the cylinder studs as they all eventually began to pull themselves out of the cases and had to be repaired by installing case savers or timeserts) A lot of folks dont loctite all the nuts and bolts during reassembly either which will cause them to slowly losen off over time - The key is loctite and proper toque, and you shouldnt have any issues with leaks. We used a Gel based Anaerobic sealant which remains quite rubbery and adhers very well to the case flanges (again prepping/cleaning the flanges is also very important prior to re-assembly). Another important thing I find is during assembly.. o-rings.... always lube them slightly with an assembly lube which will cause them to slide into place easier and avoid binding or nicks in the rubber during assembly... All these things added together and you should be ok.
But in the end they will all leak at some point in time, all we can do is try to prolong the process
H
http://pcars.prophpbb.com/

[Porsche Chick]

I do remember much discussion about the bolts, now that you mention it, Heiko. I don't know why they weren't properly sealed, and yes, our environment is humid.

[Heiko]

Well I got a few pics of the airbox going back on today but havent had much time to work on this car the last little while. Got the fuel hoses replaced, all new seals for the air intake and cleaned it up before it went back together :-)
Enjoy
Heiko

The whole airbox/intake assembly...


The throttle body and linkage...


The throttle body...


Back side of the throttle body...


Ignition coil and distributor side...

[Bryan topping]

Great stuff!!

[Johnny Danger]

And to think that putting one of those "christmas tree" air fresheners in my vehicle is a challenge for me.

[Heiko]

Hey speaking of those Christmas tree air freshners... last summer I was helping a buddy move some stuff in his garage and under one of the boxes was one of those green smelly trees... long story short, when i went to pick it up it was stuck to the concrete... a few days later we power washed the floor and the little air freshner came off only to leave a perfect outline in the cement. I realize its only a airfreshner but WTF is in that stuff to eat cement? Nasty stuff whatever it is!!!

[Coffinhunter]

Originally Posted by Heiko

Well I got a few pics of the airbox going back on today but havent had much time to work on this car the last little while. Got the fuel hoses replaced, all new seals for the air intake and cleaned it up before it went back together :-)
Enjoy
Heiko

The whole airbox/intake assembly...

My first Porsche was a family owned '74 911 Targa (Yellow), had well over 230,000 miles when my brother sold it. Still a little upset that he sold it too.

That airbox was a treat. Everytime someone new drove it we would have to have the discussion about the little red throttle lever next to the e-brake. Many a airbox "popped".

[Heiko]

Yes the famous Enrichment lever as well as the heat control/Defrost lever next to the E-Brake... Most people wouldnd even know where to find the little red level at their first 911T starting experience. I love the yellow 911 color, but this one is silver with the brushed stainless targa arch... look pretty good too I'll get some pics of the car itself up in the spring once the engine goes back in

[Heiko]

I hadn't updated in a while... Got the engine bay prepped and ready to go, put the new firewall matting in place and pushed the rebuilt motor back in.

This weekend its brakes, and clean up the front trunk.... and hopefully take it for its first ride with the new motor