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CNC Cylinder Head Repairs

15D CNC Ported Racer Pro Hd Repairs . These Hds are Australian designed . They flow as good as any 15D hd and are a superb casting for modifying.


 


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Welding aluminium Part 2
A training video 'how to use technoweld' second part of 3





Cast Iron Crack repair
Reparing crack in casting using LOCK-N-STITCH Inc. C2F stitching pins. www.locknstitch.com www.fulltorque.com dsilva@locknstitch.com





Combo 5-axis CNC Cylinder Head & Block Machining center: The CENTROID A560 Port/Block
CNC port cylinder heads, blueprint and CNC machine engine blocks and make all kinds of parts with one machine the CENTROID A560. See the machine in action porting cylinder heads and machining blocks.





BDA Cylinder Head Repair after valve and seat damage
BDA Cylinder Head Repair by Vulcan Engineering after valve & Seat damage. www.vulcanengines.com





Welding Aluminium Part 3
3rd part of the 'how to use technoweld' training video.





Cylinder Head 204 - Porting & Polishing
This is a first-generation 1992 1.6L Hyundai Elantra small-combustion-chamber head. Thats what it is. It's a J1 engine's cylinder head. In Cylinder Head 106 I talked about the mainstream porting theories as they are discussed. We looked at a cylinder head that I have thousands of dollars of professional work performed on, and a bone-stock second-generation head that I didn't port. In this video I just might do something you haven't seen done before. For some, that may be uncomfortable. The port and polish job I perform here is what I think will work best for my current build. This is not an extreme killer port job. What will be different here is where port textures are concerned, I will be following the advice of a reputable source that will remain un-named. You're free to port yours differently than I do in this video, and I give you that out, around the 20 minute marker. The Hyundai is far from being an ultimate-performance build. It's a $400 box of scraps with nothing but time invested. It's perfect for this video. My finished product WILL be an improvement over what I had. I don't yet have access to a flow bench. I still have an achievement to un-lock. As far as you should be concerned with the techniques I employ... without flow numbers there is no evidence of what this will do, but we will gather lots of info from dynp sessions and drag strip time slips. If I could test it on a flow bench, I would. There are MANY, and when I say many, I mean thousands of flame war mongering pirates floating around on rough seas with a hair trigger cannon finger itching to fire if you port a head any differently than what the herd mentality says to do while porting a cylinder head. I cover the herd mentality because it has merit. It's been tested. Tried and true. But I don't follow it to the letter of the law. I'm definitely not here to de-bunk it. I would port a cylinder head differently for each build based on how that engine was used. There's an extremely valid reason why relating to air speed. It's not the texture of a port that maximizes the effect of fuel atomization, but the velocity of the air running through an x or y sized valve. The driving factor in this is the piston speed. I'm not going to give you the technical information, but will refer you to information about the Lovell factor. There's a better description of this in the links below, and even a calculator to help you find your engine's sweet spot. Why the Lovell factor is important: https://www.highpowermedia.com/blog/3346/the-effect-of-valve-size Lovell gas factor calculator: http://www.rbracing-rsr.com/lovellgascalc.html Only people who have flow testing equipment know for sure what really works and have the capability to produce a perfectly-matched port job for the ultimate performance build. Those guys know the definition of ultimate, and THEY are floating below the water Aegis-class submarines ready to blow your comment up if you don't know what you're talking about. They don't care if you're an armchair mechanic or a herd of pirates. I will say, they're zoomed in pretty close on me right now, and I'm expecting to take a few hits. My work will be tested based on Dyno and drag strip performance, and the results will be posted here. Fortunately, those kinds of videos are a WHOLE LOT EASIER TO MAKE!!!





Cylinder Head 201 - Radius Cut Valve Job
This video covers the complete valve job process that your machinist might perform. If the 100 series videos didn't help you identify and correct a problem with your cylinder head, then this is the next step. This video is brought to you with permission from my machinist in full 1080HD, and covers cleaning up the head inside and out, preparation and setting up a radius cutter, cutting all 16 valve seats, valve grinding, and spans 3.5 hours of actual work in under 30 minutes. There's nothing like this anywhere else on YouTube. THANK YOU BALLOS PRECISION MACHINE. Thank you for the professional explanation and execution of a job excellently-done, and un-precedented access to your facilities. A valve job is done by re-grinding or replacing valves, and then having new seats cut to match the faces of the valves you're using. There are several different machines that might be utilized to achieve this result, but the process is the same no matter how it's done. There are seat cutters that utilize cutting stones. There are valve seat cutters with 3 separate angles installed 120° out-of-phase, and there are single cutters with all 3 angles (radius cutter) that cut with one blade in one pass. The machine demonstrated here is a Sunnen VGS-20 Radius Cutter. This machine (now out of production) produces a gradual curved seat that's superior to the shape of a traditional 3-angle seat. While a radius cutter does contain the 30, 45 and 60 degree angles, it does so without leaving any sharp edges between their faces. My valve selection includes Supertech 1mm oversized nitride-coated stainless steel undercut and back-cut intake valves, and 1mm oversized Inconel back-cut Exhaust valves. Inconel is a high-temperature alloy utilized in marine and forced-induction performance engines that can handle more abuse than steel can without melting. The other characteristics of the valves which are discussed typically yield bigger gains in airflow than simply using a bigger hole and a bigger valve. Why I did this to a perfectly-good cylinder head: I changed cams. Because the valves were previously recessed during another valve job 9 years ago, my valve installed height was increased and this raised the operating positions of my rocker arms. My new camshaft selection dictates using the stock valve install height. The only solutions to this valve install height problem are to either replace the valve seats, or install oversized valves. I opted for the latter.





Mira Centronic valve seat cutting





How To Remove and Replace Valves in a Cylinder Head -EricTheCarGuy
If you need to remove a valve from a cylinder head either to replace the valve or replace the valve seals, this video will help you do that. You can also do this process while the cylinder head is still fastened to the engine block with some tools. To do that, put the piston at TDC compression stroke and make sure both valves are closed. You can then run compressed air into the cylinder to hold the valves in place as you compress the valve springs. I often use my compression tester hose to do this. You need to remove the schrader valve first before you attempt this, if not, air will not flow into the cylinder. You can also use a piece of rope or equivalent to keep the valves from dropping into the cylinder while you work. This method works well if you're just replacing the valve seals. You won't be able to use the large spring compressor however. You'll have to use the Lisle or some other type of compressor do manage that task. Here's some useful links for you. Tools. Large Spring Compressor: http://www.jbtoolsales.com/gearwrench-383d-valve-spring-compressor/#oid=100 2_1 Lisle Spring Compressor Tool: http://www.jbtoolsales.com/lisle-36050-valve-keeper-remover-and-installer-k it/#oid=1002_1 I had a heck of a time trying to find the Honda special tool and was not able to provide a link for you. Sorry about that. The Lisle tool will work just fine, OR I've seen some home made versions of that type of extension that looked like they'd work pretty well. Related videos. Basic Parts of an Engine: http://www.youtube.com/watch?v=saPGX-1qC4M Civic Engine R&R Part 1: http://www.youtube.com/watch?v=Me9w6aIqJ48 Tahoe Engine R&R Part 1: http://www.youtube.com/watch?v=aMkqWMvcdiQ Dodge Ram Engine R&R Part 1: http://www.youtube.com/watch?v=oc3zSgEA8Jk Sonoma Engine R&R Part 1: http://www.youtube.com/watch?v=5ivqj2LjE28 Articles. How to Find Leaks: http://www.ericthecarguy.com/faq/finding-and-fixing-fluid-leaks Discussion about this video: http://www.ericthecarguy.com/kunena/18-The-EricTheCarGuy-Video-Forum/50319- how-to-remove-replace-valves-in-a-cylinder-head#92526 The best place for answers to your automotive questions: http://www.ericthecarguy.com EricTheCarGuy code lookup: http://www.ericthecarguy.com/obd-code-lookup Facebook: https://www.facebook.com/EricTheCarGuy?fref=ts Twitter: https://twitter.com/EricTheCarGuy Google+: https://plus.google.com/100195180196698058780/posts Information on Premium Membership: https://www.ericthecarguy.com/premium-content-streaming-etcg-content Stay Dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.





Crankshaft balancing
Balancing a Jaguar E Type crank at Classic Jaguar in Austin, Texas www.classicjaguar.com/sb.html





Ford Escort Cylinder Head Replacement Part 2
Ford escort Cylinder Head Replacement Part 2





Cylinder Head 105 - Valve Job Basics
Valves not sealing? Valves not bent? This is how you fix that problem. In this video I outline the basic valve job procedure. Cleaning the valves, cleaning the seats, cleaning the combustion chamber and lapping the valves in to make a better seal. Here I cover the process start-to-finish. It's the same exact process for pretty much all non-rotary combustion engines. It takes patience and perseverance to do this job, but anyone can do it. Reference your service manual for measurements and service limits. Everything else that's not in your service manual is in this video. I apologize for not having broken busted crap to work with in this video. It's more beneficial to all of you when bad fortune falls on me because it gets well documented, and many people watching these videos are looking for answers. If you have bent valves, you will discover it quickly once you chuck one up in the drill. You'll see the face of the valve wobble around while it spins. You'll see evidence of this damage on the valve seat. If it's bad, you may see damage on the valve guides in the form of cracks or missing pieces where the valve guides protrude through the head ports. Give all that stuff a good visual inspection. ...and if you doubt yourself, never hesitate to get a second opinion or consult a machine shop. They will have access to expensive tools that you wont find in your average gearhead's garage.





Kirkham Motorsports University CNC Billet Aluminum 427 FE Engine Block 1 of 3
Here is another YouTube from Kirkham Motorsports University. Here we show you how we took a solid, 386 pound block of aluminum and machined it into a 427 FE engine block. www.KirkhamMotorsports.com





First Engine Start FW190
FW190A-8 Werknummer 173056 quickly roared to life Sept. 21, 2009 after 8 1/2 years of restoration work on the four major components of 173056: Tail, fuselage, wings and engine. Located at the Baton Rouge Metro Airport at PAI Aero, this restoration is a project of Don and Linda Hansens engineering company. The engine was started but shut down quickly as a precaution due to lack of oil pressure indication - found later to be an incorrect pressure sender. Major Frank Hohmann from Flug-Werk in Gammelsdorf, Germany worked intently for most of September, as did Don Hansen and crew Rusty Gautreaux, Danny Trogé and Stephen Hansen to complete engine rigging. This de-preservation/pre-oiling run was a smoky success, with the 2000HP Ash82T engine starting instantly on the first try after 30 years in storage. The first flight is planned for Summer, 2010.





Edelbrock RPM Olds 455 Head Porting
The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. My first attempt at porting any cylinder head. I raised the roof .200" and dropped the floor .040". It's best to leave the floor alone or raise it by filling with epoxy. Porting kit by Mondello.




Which car is faster? Which Car is Faster?





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