Satisfying Porsche 911 Engine Assembly Commences - Part 6

Подписаться 16 тыс.

Просмотров 5 тыс.

50% 1

Check out how Porsche 911 engine assembly is done by a home DIY mechanic. You will see a few different techniques here versus the workshop manual that promotes quick service turnaround. This is my own personal engine, so I give it a little extra care during assembly.
Watch the entire top end engine rebuild series here:
• How To Remove And Diag...
Patreon / ahhgaragetime
Insta @ahhgaragetime
FB / ahhgaragetime
Website www.ahhgaragetime.com
Ahh Garage Time Email Stories:
mailchi.mp/b63353737df0/sign-...
00:00 Introduction Porsche Engine Assembly
00:15 Install Cylinder Barrel of Piston Rings
03:41 Clean Carbon Deposits off Piston Dome
06:15 Re-epoxy timing chain box
10:50 Check head stud threads and material
11:52 Clean cam towers
13:48 Add cylinder cooling tin
18:02 Prep head stud threads with oil
18:46 Install air cooled heads
20:19 Check head heights with straight edge
23:19 Install Cam tower and torque heads
29:58 Install new oil return tubes
31:18 Install cam towers with sealant
36:50 Cam tower torque sequence
37:56 Install overhead camshafts
39:58 Spin Cam Check
#911engine

Авто/Мото

Опубликовано:

5 авг 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 40

@GarageTimeAutoResto 6 месяцев назад

20 Tons per side on the head studs! Is it only me who ponders this stuff?

@user-ym8lt3js7l 6 месяцев назад

Stud/bolt preload is a wonderful thing! Iirc, as a rough rule of thumb, 5T/d for dry, 10T/d for lubed (really depends on the friction coefficient, mu). It’s all about the clamp-up! 😀

@cam3002 6 месяцев назад

Really appreciate the long format "how to", keep up the good work!

@dra911 6 месяцев назад

Satisfying indeed. Impressive to watch your meticulous approach to reassembly. Thanks for sharing with us!

@jeffharrison5265 6 месяцев назад

Great work as usual. Love your attention to detail.

@davidnelson6893 6 месяцев назад

Yes you got that right

@user-ym8lt3js7l 6 месяцев назад

Love the water feature @12:20! Seriously, really enjoyed your attention to detail on the assembly. 😀👍👍

@GarageTimeAutoResto 6 месяцев назад

Almost got my neighbors wet!

@olegregersen1024 6 месяцев назад

The level of craftmanship and information is impressive, thank You.

@theshyfarmer 6 месяцев назад

There is a worthwhile and cheap upgrade you can do, you probably have already heard of it. Its a fitting on the outside of the engine if i remember correctly its on the return oil line from the head. It actually restricts the flow of oil returning to the crankcase reducing oil frothing and increasing lubrication of the valve gear. You will also see a significant increase in oil pressure displayed by the gauge.

@GarageTimeAutoResto 6 месяцев назад

Yes, I'm familiar with the oil line restrictor. It replaces the fitting that I connected my garden hose to. Garden hose pressure is about 40 psi and I was amazed how much water came out of those squirters. It went over 6 feet high. Oil pressure is higher than 60 psi although the viscosity is much higher. I think it is a good idea to reduce the oil flow here for the frothing reasons you mentioned. I will install these.

@jrumiano 6 месяцев назад

Nice step by step non-rushed reassembly. I can't wait till you get it back in the car an fired up for the first time! Seeing your videos makes me want to drive my 85 911, but it's winter here and she stays safe in the garage until spring. Keep up the great videos!

@GarageTimeAutoResto 6 месяцев назад

Thanks, I hope you can enjoy your 85 soon! I can't wait to start this up. I'm not sure if I will start it on the engine test stand or in the car?

@bwj1158 6 месяцев назад

Good video. I really appreciate the detail that you put into your videos. I'm looking forward to part 7.

@davidraeside 6 месяцев назад

Great video Tom... it's amazing how similar it is to the 993 generation of flat sixes. Looking forward to the next one!

@carsonko2900 6 месяцев назад

This is awesome!!! you are a wizard, my friend!

@johngarrott5933 6 месяцев назад

Thanks, these engine videos are very informative and enjoyable to watch!

@carl545marchbanks4 6 месяцев назад

Very good info, thanks for taking the time and doing careful work!

@chuckglass8849 6 месяцев назад

Acetone crosses the blood-brain barrier, so do not let it touch your skin. time to glove up! I really enjoy your videos, thanks

@GarageTimeAutoResto 6 месяцев назад

Thank you for the reminder! Acetone is strong

@georgeskrompecher3036 6 месяцев назад

Great work, very thoughtful. BTW, Dilavar, not Divalar.

@GarageTimeAutoResto 6 месяцев назад

Thanks, I always get that Dila-dud thing backwards, ha ha.

@sciencemathematics9502 6 месяцев назад

Thank u

@smplyizzy 6 месяцев назад

Nice job. Safe some old toothbrushes for that type cleaning they work wonders.

@GarageTimeAutoResto 6 месяцев назад

For sure, especially in the nooks and crannies of the cam tower.

@openhighwayproductions 6 месяцев назад

Surprised the studs are not titanium or some other exotic metal. Without head gaskets, taking up any gaps, surely could be unpleasant. Are those the stock cams?

@GarageTimeAutoResto 6 месяцев назад

Porsche did design an exotic stud called Dilivar. Most of them are broken by now. It was an effort to match the thermal expansion to the aluminum cylinders. Yes, those are stock cams

@RFS718 6 месяцев назад

Tom: One question. I was taught compressed air has moisture in it. Is that a concern, particular when using it for the final clean? Thanks for all the videos, excellent information.

@GarageTimeAutoResto 6 месяцев назад

Thank you. Yes compressed air has water in even though I have water traps/filters on my air hose lines. I don't think it matters. For gasket surfaces you can wipe with isopropyl alcohol if you want to clear moisture off. Engines create water when they run as a normal byproduct of combustion. No big deal if you ask me. I'd rather clear any debris or lint that might get left in the engine. Very high pressure is pretty effective at cleaning.

@brianrhodes746 6 месяцев назад

Loving this head rebuild project Tom. Especially the details/assembly height checks to ensure the cam doesn’t bind. Maybe I missed it but how did you determine that your cylinders are Alusil (vs Nikasil)? I’ve read that the number of fins can be used to differentiate. Is that an accurate method? Also just want to confirm that you only used copper gasket sealer between the cylinder / casing seal surface. Trying to learn and absorb as much knowledge as possible before I perform this same process. Thanks.

@GarageTimeAutoResto 6 месяцев назад

Thanks! Let me guess your engine has bad valve guides too? My cylinders are stamped KS which is the manufacturer that only uses Alusil. Mahle is Nikasil I used the spray gasket sealant on the base gasket. Sealant here is optional. Some people use Curil T2 on the cylinder base which is also good, but my god that stuff is for gaping gaps. See you on the next one

@johncrowley5612 6 месяцев назад

Would it not be a good idea to clean the piston crowns before fitting them to the cylinders?

@GarageTimeAutoResto 6 месяцев назад

I only removed one cylinder for inspection. To me it's easier to clean them on the engine with cylinders so they don't flop around. If it's a full teardown, then it would be easier to have them vapor blasted after removed from the rods. Good question and I'm sure there are a dozen ways to do it. My opinion is that most shops only do full rebuilds because this type of cleaning is a time sink on a partially assembled engine.