1983 Porsche 911SC Engine Assembly Part One

This is the engine build from case to pistons. This video was getting very long, so I could not go all the way to finished and still show the kind of detail you get in this video.
Next up we continue with the heads and cam box, including the timing, all the way to the engine tin.
Hope you enjoy this full-engine-build. Thanks for watching, commenting, sharing, and subscribing!

[@chuckglass8849]

I'm thoroughly impressed-as always. Now, if I can just win that Powerball, ....Keep up the terriffic work-both of you!

[@klassikats]

Thanks Chuck Kurt

[@jdmimportlogistics]

WOW!!! What a masterclass in engine building- thank you for sharing your knowledge. Just learned that a non direct family member that I've seen at gatherings on and off for 30 years is a car fanatic and has a mint 89' 911 Carrera. These air cooled flat sixes are amazing

[@klassikats]

Yes they are. Thanks for watching Kurt

[@user-ik6xc7mr5q]

I live just down the road in Mesa, AZ. Once my air-cooled Porsche search is over, I'll definitely use you for my maintenance needs. Nice work!

[@klassikats]

Thanks Kurt

[@cramiro71]

Lovely. I wish I had your skills and tools for my 3,2! Thanks for another masterclass!

[@klassikats]

You are very welcome. Kurt

[@keithgarland3404]

Well that was an engine build master class, you certainly know your engines.

[@klassikats]

Thanks, Kurt

[@marklorenson3618]

I really like watching your videos… good old school…

[@klassikats]

Thanks Kurt

[@craigheller9053]

Nicely done as always! Both the build and editing!

[@klassikats]

Thanks Kurt

[@cam3002]

Great video, thanks for sharing.

[@klassikats]

Our pleasure! Kurt

[@ghdjskjgbh]

As always, amazing content Sir.

[@klassikats]

Glad you enjoyed it Kurt

[@Dernie1000]

Great Job and Great Video! Thanks Kurt! 👍

[@klassikats]

Glad you liked it! Kurt

[@kalleandersson926]

I hope that the rest of the car gets the same treatment 👍

[@klassikats]

Yes we will be installing into the vehicle for the owner Kurt

[@johnnydeutschemark3620]

This is so fantastic, thanks you for sharing your knowledge and time with us, best KZbin video! I am reminded of an engine re-building class given by the great Tony, in PA, USA. We also used a Porsche 3.0 SC engine for demonstration. Do you know Tony ? Do all you engine guru's know each other? I will watch all these videos several times, I am sure, in anticipation of an eventual re-build. My '83 has about 145,000 miles and is running strong.

[@klassikats]

I may know Tony, but just not sure by your description. It is a very small community and most of us know of or know each other. Kurt

[@peters1821]

Thanks for sharing, always amazing to watch and learn from you! Wish you'd do a 944 step by step engine rebuild, i have to do one.

[@klassikats]

We could do your engine and make a video. Kurt

[@JoseSilva_]

Que trabalho de primeira. É 10/10.

[@klassikats]

Thank you, Kurt

[@trj911]

Where are you located? I will need to get my SC engine rebuilt one of these days and I think I found the man to do it!

[@klassikats]

We are in Flagstaff, AZ Kurt

[@ianhands9289]

Superb work as always and perfect timing on the 83 engine, im just about to start the crankcase assembly on mine. Do you have a part number or name for the valve shim height tool? Please

[@klassikats]

Porsche P10B Kurt

[@ianhands9289]

@@klassikats thank you

[@gorporpio]

What about the most important measurement re pistons/cylinders - the ring land play? I saw no checking. If the land is close to minimum you don't even need to measure the cylinders. The ring land condition tells you everything to to know. If it's nice, everything else is nice. If it's not, replace.

[@klassikats]

Yes, ring land is part of our checks, kzbin.info/www/bejne/lZS9k2mEp6-Ghrs Thanks for watching, S

[@user-ik6xc7mr5q]

Curious...prior to engine disassembly, do you check crank and intermediate shaft end-play clearances, so that any problems can be identified prior to assembly?

[@klassikats]

Yes. Kurt is assessing the engine as it comes apart. Cleaning is a continuation of the inspections, and all parts are measured to see if they are worn out or in tolerance. You can check out the clean and inspect video for an insight into some of this. Thanks for watching, S. kzbin.info/www/bejne/e36yaIWnga6nqKM

[@nickpappas4133]

I noticed that you just took the piston rings from the package and installed on the piston, did you check ring gap before or trust the rings.

[@klassikats]

With stock pistons and cylinders that have been measured and confirmed and using OEM rings that I have verified many times before then yes I can use straight out of the box. Now doing a custom build with different size pistons and over-bored cylinders with custom rings, now that's a different story and I would check every ring and every cylinder. Kurt Kurt

[@nickpappas4133]

Good to know, OEM Audi pistons and rings are perfect out of the box for standard bore as well. Thanks @@klassikats

[@cranklesnacks]

how does one learn to do this? amazing

[@klassikats]

lots of practice and years of working with experienced, and well trained mechanics Kurt

[@cranklesnacks]

@@klassikats thanks for replying - super impressive!! i’ve been watching porsche rebuids obsessively.. from your experience, what’s the best way to get started on this for noobs?

[@johnnydeutschemark3620]

@@cranklesnacks Read the books, watch these videos 10x. Take an air-cooled-engine re-building class ( if you can find one!) Buy a stand and an engine, tear it down ( take notes and photos, label everything, use lots of containers. Send parts to machine shop, buy new parts, assemble etc. etc...

[@carterames7214]

What signs and at what age would a 993 engine need to have the valves and heads rebuilt?

[@klassikats]

Most air cooled engines will go about 125,000 miles before heads need to be serviced. An indication that things are wearing out is increased oil consumption, and smoke from the tailpipe after long decelerations or when taking off from a stop light. Kurt

[@chrismac2264]

Kurt, you said these cylinders were Nikisil and no honing and re-ringing is fine. What about Alusil cylinders? I have read you need to keep the pistons in, and check the tolerances for reuse (or replacement). I have also read you can re-ring them. What is your take?

[@klassikats]

Chris, Alusil cylinders are very different than Nikisil. You can re-ring pistons, but you have to be very careful to use the right ring. I'm not sure what you mean about keeping the pistons in. However, the pistons used with the Alusil cylinder are unique to that cylinder design. It is a good idea to keep matching pistons and cylinders together when reusing. Basically, Alusil is just another method to harden the aluminum wear surface. You need to follow the manufacturer's recommendations on what to use with that cylinder and piston design. Kurt

[@chrismac2264]

Kurt, thank you for the reply. When I said I read to keep the pistons in, I meant to keep them in the cylinders when removing. This is from a book by Wayne Dempsey. It's an over simplified way to make sure the cylinder and it's piston stay together. I'll do more research on manufacture recommendations for these cylinders. Thanks again for your advice.@@klassikats

[@klassikats]

Chris, be careful when using information that is not from Porsche. Often many of the aftermarket books contain information that is opinion and not fact. Kurt

[@chrismac2264]

Kurt, while Dempsey is considered an expert in Air Cooled Porsche's, your point is well taken. Would you be able to point me toward Alusil (KS) manufacture recommendation material?@@klassikats

[@klassikats]

I would have to beg to differ. Mr Dempsey is far from an expert. The factory Porsche manual talks about measuring and re-using Alusil cylinders. The PET program will also get you the correct ring part numbers. KS also put out a really good document on the design use and repair of aluminum engine blocks and cylinders, you can find it here. www.electrosil.com.au/pdf/KS.pdf Hope that all helps Kurt

[@sambaron1319]

I thought that in 1983 it was already water cooled...

[@klassikats]

No, the water cooled models were another 14 years away. Kurt

[@kboldin]

Why didn't the cylinders get cross hatched??

[@klassikats]

The cylinders used in this engine are Mahle Nikisil coated aluminum. The Nikisil is plated on to the cylinder and is very thin. Porsche says to only clean the cylinders with soap and water and re-use when they are within wear specifications. Although these cylinders can be honed I have found that it is very easy to go through the coating. I have also found that I have no issues with ring seal on in spec cylinders without honing. Kurt

[@kboldin]

Very interesting, thank you very much!@@klassikats

[@davidrodriguez-rk4ee]

Hello Kurt, Great video(s)! I have question that pertains to a 356 engine if I may. Regarding piston coating. My piston cylinders are aluminum .Not sure what was the coating. Want to ask can I hone them? Hope you can help. I have asked around told, no and then yes ? @@klassikats

[@klassikats]

If your cylinders are the Mahle brand, then they are niciksil plated onto the aluminum. This surface can be honed, but the coating is very thin, and it is very easy to go through it. I recommend having a shop that services these cylinders do the hone for you @@davidrodriguez-rk4ee Kurt