More LOOSE parts!!! Engine Failure?? Lucky Hoovie?? 1994 Ferrari 456GT V12 Engine
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- čas přidán 23. 05. 2023
- Hoovie's Garage 1994 Ferrari 456
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The valve adjustment shim on top of the bucket design was originated by Aurelio Lampredi used on the FIAT 1100cc SOHC engine circa 1960's. Previous shim-bucket valve adjustments designs put the valve adjustment shim under the bucket mandating remove of the cams to access the shim. This valve actuator design plus an extremely stif/stable valve train, short stroke and stroke to con rod ratio of about 1.8 and rigid and strong bottom end allowed that vast produced FIAT 1100cc engine to rev to 9,000RPM as delivered problem free. This design was carried over to the Lamprdi twin cam (won six WRC championships and LOTs more, well over three million of these Lampredi twin cam engines produced) and a number of Ferrari engines. The design was patented, then licensed by VW and Volvo.
~Consider how many modern engines including many, many real race engines( like Cosworth and many others) have this same valve bucket to cam design be it solid or hydraulic actuated (like SAAB B204/B234).
To remove the shim, depress the valve or un-do the cam enough to gain access to the bucket. Squirt compressed air at the slot in the bucket between the bucket body and shim, this will break the oil-air seal between the bucket and shim allowing removal. USAG tools made a special plier to aid in shim removal, this would be USAG# 440B.
For those who do not understand why Ferrari put the studs where they are, do not understand the importance of stability between cylinder head to block. Longer these studs, more springy they are. So many engine designs like the Porsche flat six, GM Northstar and many others have overly long cylinder stud/bolts which stretch and produce head gasket failures. Short studs forces this joint to be rigid with a very high degree of stability. Now look at how tall the cylinder heads are given they are twin cam and all that.. Consider how long those cylinder head studs must be and the problems they would cause the valve train. Ferrari engine folks did the absolutely proper design given what the other aspects of this engine must have. Ferrari engine designers do not design engines to be serviced by "back-yard" wrencher folks, they are designed to serviced by properly trained and qualified personnel with ALL the proper specialized tools. SO many horrid things happen to these Ferrari and other Italian exotic engines due to back yard wrencher folks that have no idea what they are doing and improvise in the worst way make-shift tools that often does more damage then proper servicing.
~The reason why the head gaskets failed on this Ferrari engine, failure to properly torque the cylinder head nuts. If the special tool was not available, this could be the reason why those cylinder head nuts were SO loose, causing the head gasket to fail. This NOT a design problem, it is a maintenance-service personal issue.
Thanks for the detailed info! What kind of torque wrench would one use on those recessed nuts? One with perhaps a closed spanner design instead of a socket, I'd imagine.
The shims on top of the buckets are nicer for adjustment, BUT, they pose 2 problems. #1, they are heavier than just a cap on top of the valve and #2, they can limit cam profile in some cases.
Japanese motorcycle manufacturers initially used shim above bucket in the 1970s , but quickly replaced the design with shim under bucket due to the shims getting spat out at high rpm.
Pity they didn't think about designing the rest of the head properly - those head bolts - well of course most shops aren't going to torque them properly, because you can't get a fucking torque wrench on them!
@@Beer_Dad1975 tell us, o wise one, how would you design the head better than Ferrari engineers... instead of just using the correct tool?
This guy really knows Ferrari
Many engines have connecting rod installation facing.
He use to work for Ferrari as a tech if I’m not mistaken.
@@OggaDugga He know, Mike worked with him.
Broken timing pulley...The timing was off...blew the head gasket.
Yours and Wizard's channel compliment each other really well. It's great to have the option of seeing an in depth view of how work is completed. Excellent content 😀
@DC Squared had the same thought as the video progressed.
I enjoy how you speed up the video at times through the process rather than cutting from one point of disassembly to the next. This is a great technique that allows us to see the whole process, while slowing down to normal speed for the more interesting parts. Love this technique!!!
Excellent work Daniel! I like how the format is just wrenching, no faff. Keep up the great work. Looking forward to seeing it go back together 🍻
I gotta say dude, you're a natural in front of the camera......
100%
Love the beard growing with subscribing, plus now we know how the “beard of knowledge” got so luxurious.
Them Ferrari V12s are Engineering wonders and Artistic mastery in one
I love this sort of stuff, Daniel your a lot more comfortable on camera now, two thumbs up from me 👍👍🇦🇺
Nice work Daniel-Son looking forwards to watching your channel grow remember it takes time. 👍👍
Love the beard comment at the end. Crazy to think who may have wrenched on this engine in the past. At least it's in good hands now.
Great watching that engine being dissembled, great stuff for a gear head.
Love the exotics.
For a young technician you are so gifted. Please keep your videos coming. Absolute genius.
Daniel san is the true disciple of car wizard. He is cultivating the beard of knowledge! 😅😅😅😅
I used to be a mechanic and am now a workshop manager. It’s very hard to get good mechanics now but if I had 6 guys of your caliber I’d have the best workshop in the world. Really love your videos.
Great job Daniel! Really enjoyed your methodical approach and your easy to understand explanation of just how hacked together this V12 engine is! Bad mechanics are the gift that keeps on giving. Looking forward to the next video, subscribed!
Really good video! Good luck with the channel. I’ll definitely be watching
You do a great job teaching us!!! Love the channel.
Great video!! You do a very good job explaining what you are doing as you go along!!! 👍👍🙂
Wow!! This is a seriously interesting video !!! Please continue with the exact same format ! Great future for your channel !
Omega CZcams Studio & auto repair. Great stuff D! I'm loving this in depth coverage and your delivery of it!
Wow that's a lot of work! Really enjoying these videos!
Hey Dan. The channel is very watchable and I’m a fan. I can really relate to your teaching style. Your extra effort and generosity of spirit are very much appreciated and will hold you in good stead throughout your life.
Great video!!
Chasing down any faults in the internal of the engine.
Love to see it!!
I enjoy the fact that in addition to explaining exactly what you are going to do you actually show how it is done at normal speed so we can follow you. Some others just talk about what they are going to do a little and then magic, its done. Not really that interesting. Keep up the good work.
Great video and detail. I watched to see how you learned to organize all of the parts when you showed it to Hoovie :)
Organization of an engine rebuild is a big thing, and you are a master at that as I can see.
Great video, looking forward to seeing it being reassembled
Love the paper under the cam cap trick!
I really like your style and content Daniel San. You're a natural 😎👍
Awesome videos Daniel! You do a good job explaining what you’re doing and how you’re doing it.
I can’t wait to see that V12 being put back in the 456!
Also really looking forward to seeing a video of you working on EuroAsian Bob’s Ferrari 348!
Nice work, fantastic channel so far and who gets to see a Ferrari V12 so often? I spent all afternoon fighting a starter on a 69 Lincoln so this was welcome! Really good.
Great video. Well explained and really interesting to see the engine come apart and the issue with the head gasket. Looking forward to the next video.
Great video. Enjoy watching someone that knows what he doing.
Great content! It’s amazing seeing how much is similar and at the same time different from the Ferrari V8s. I’ve never worked on a 12 but maybe someday. Definitely looks like you found a lot of hidden gremlins in that previous rebuild. It’s amazing it ran as well as it did for as long as it did. I’m sure it will be a brand new machine when you’re all done with it. Great work!
I love this type of video. You do a great job of explaining things. People don't realize how hard doing videos are when you are trying to actually work on something.
I subscribed through Hoovie and the Wizard, love your videos. These are such great videos. very informational.
EXCELLENT video Daniel ....your showing exactly what skills are needed to work on these kind of vehicles ... you do the Mechanical /Tech community proud ... WELL DONE !
Awesome paper tip. Can use that for other cars too. Love learning new tricks and tips.
Very, very good, and without any "music"! Excellent!
Thank you man this is an awesome dovetail into the wizards videos. I love the deep dive. This really goes hand in hand with hoovey and The wizard and makes a well-rounded collection of videos. Please don't leave like magic Mike!!!!
Excellent video, loved the details!
Excellent video Daniel and awesome job on the engine, I'm sure that motor will look and perform like new when you're done.
To the point, very nice ! And I've appreciated the details like the valves adjustment, thx 👍
great editing and filming - great video for the education
This is the good stuff. Keep going, and thank you!
Excellent. Great to watch a technician at work. Hi from the UK.
Great video, Daniel-San! Greetings from Trinity, FL…not very far from your old dealership in Palm Harbor
I did not know that you have your own channel. I am now a subscriber. You are a top notch technician.
I really enjoyed this video. Good job.
Great video and fantastic job you're doing. I have been following the car wizard for a long time and I've just subscribed to your channel.
Greetings from France 🇲🇫
Really an elegant design and you are the master.
Thanks for sharing.
I like the format of you posting after Tyler! It prevents stepping on toes and I don’t think it takes anything away from your videos 👍🏻
Thankfully I now know how my Ferrari works a little bit better. When I get one. Eventually. Bless you Daniel-San.
That shim in bucket design is what a lot of bike engines use as well. You need a lot of spares to set those up - this is like doing 3 bikes all at the same time though! :O
Aston Martin too.
Your the Ferrari Wizard, very impressive how much you know about the engines. Really like your videos❤
Great youtube channel! I really enjoy it as well as Wizards
My dream car . Nice to see the innards . Thanks Daniel
lots of luck . Happy Trails
it's not often at all that í get to watch engine work being done at such a great camera angle. it's like im in automotive school.
Your knolling of the engine parts is very satisfying.
Damn. This was a ticking time bomb waiting to go off.
Would you say the bolts were loose because the head gasket was partially rotted away?
Daniel-San, I definitely like the way you did this video, dare I say better than the Wizard's video.
It is better than Wizards videos...I rather watch Daniel's videos than Wizard. Anyway, Daniel, your youtube channel is awesome!
Great video, Daniel-San! Interesting to see how sloppy that thing was worked on before. Is that a flat-ground crank? So glad I subscribed and glad to see your subscriber count is going up. Keep up the great work.
Setting engine at TDC then removing t-belt is risky. If valve spring pressure snaps cam around suddenly you risk bent valves, particularly on exotics with small stems and big valve heads. Check and record your valve timing at TDC, set crank over 30 to 45 degrees and then remove t-belt. No risk of valve-piston contact.
Great video - thanks!
thanks for posting ... Car Wizard sent me.
Thank you just subscribed - love your work Regards
fascinating. love this detailed video
You give me the confidence that I could pull this engine apart myself... I know that's not the case hahaha cheers Dan 🍻
You’re awesome Dan! A very interesting video, my favourite Ferrari model too! Even the block is a stylish work of art! Beard looks great btw
Well done, Daniel.
Most interesting and well done!
Well done Daniel-!!!).....you're a surgeon!!!
Great video!
wonderful content no drama no fill
Well done Daniel.
GREAT video!
Seriously man, you are awesome on the video…not calling out the wizard, but you’ve got talent my friend.
I like your deep dives.
Amazing skills! Wizard is lucky to have you
Great video and explanation, I was a tech for Audi/VW for 47 years,was really surprised to see that Ferrari motor was a simple design.
nice work! more ferrari videos please! :) :) :)
Nice tear down Daniel-san
That table didn't look too steady.😮
Good stuff!
This is cool stuff I had no idea how these engines compare to domestic ,it is a work of art .
Mad skills brother
Well done Daniel-San 👍
Nice to see you using the interlocked spanners trick.
Great video
Thank you Sir, appreciate you sharing your knowledge. First engine of this type I have seen taken apart. Interesting the use of studs for the heads, it appears to be an old school design, I could be wrong on that though, just a thought because its something I haven't seen used except on older vehicles.
Daniel you are so much faster than the wizard lol, kidding great video!
Daniel-San is very thorough. I would for sure put all the pistons and rods back in the correct order like it was from factory. Looks like in Dubai they did not care at all just as long it runs for a while it is okay. They don't know what to do with their money so the spend it like water.
Can't wait to see Hoovie's lick of approval
Great video 👍
Good video. Thanks.
I watched two other videos that popped up in my feed right after watching this video. All three videos involved overheating along with suspect head gaskets and a few loosely torqued head bolts along with coolant in the affected cylinders. It seems to be a common theme. Another thing I discovered on other videos was that an excessive amount of carbon especially on the oil control rings would cause the those rings to seize up and damage the cylinder walls. That's my take on it.
Just as an extra here,back in my twenties my dad's '85 Mazda truck started consuming coolant through the engine. At that time I was turning wrenches at my employment so my dad came to me with the issue. I snugged down the head bolts a little more and the coolant consumption stopped. I guess we caught that in it's early stages.
great presentation
You'r doing it right and carefully👌...that special engine have it rebuilt of you, sounds for me like a 6 on lottery😊
I'm right on time!!!!!!!!