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How To: Lapping Valves SOHC Neon

Lapping Valves for my new head, which was ported and polished by Madhatter from Disturbed Head Works. You can contact him on neons.org.


 


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EASY, HOW I LAPP & GRIND VALVES. THEY DONT TEACH THIS TRICK IN SCHOOL, ONLY OLDSKOOL.
Automotive technician since 1991 I show how I do a valve grinding job (Lapping Valves) at home using a vacuum hose, drill & compound, don't over think it and don't assume it cant be done. learn how and save money on your project with out taking your cylinder head to the machine shop. Valve guides must be in good shape ( with no significant play or bent Valves before you perform this task, but this procedure works very well if done with care & quality. Go get it! and God bless.





Rebuilding a Dodge Neon in 10 min.





ITB Up Close, 2.0 Dodge Neon SOHC, 8800 RPM
Open Header, 'twas LOUD!!!





Valve lapping D16 SOHC head
Quick vid showing the method I used to hand lap the valves on my SOHC d16a6 head.





First time EVER breaking 200whp, 2.0 Dodge Neon SOHC





CRANKWALKED? 7-bolt teardown 1080HD
Now this is a story all about how My bearings got flipped-turned upside down And I'd like to take a minute just sit right there And tell you how I used to mix and burn my gas and my air. In RVA suburbs born and raised On the dragstrip is where I spent most of my days Chillin out, maxin, relaxing all cool, 'n all shooting some BS outside with my tools When a couple of guys who were up to no good Started running races in my neighborhood I heard one little knock and my rods got scared And said "You put it in the garage until you figure out where..." I Begged and pleaded that it not be that way, But it didn't want to start and run another day. I kissed it goodbye, because the motor punched its ticket I got out my camera, said "I might as well kick it." Crankwalk yo this is bad Drinking metal shavings from an oil pan. Is this what the rumor of crankwalk is like? Hmm this won't be alright But wait I heard knocking, grinding and all that Is this the type of failure that should happen to this cool cat? I don't think so, I'll see when I get there I hope they're prepared for this video I share. Well I pulled all the bolts and when I came out There were chunks in my fluids in the pan and they drained out I aint all depressed cause I seen this before. I got my books and my wrench and we'll do it once more. I sprang into action like lightning disassembled I whistled while I worked and my hands never trembled If anything you could say that this bling is rare, and when I saw what broke I stained my underwear. I turned off the air compressor 'bout 7 or 8 And I yelled to crankcase "Yo holmes, smell ya later" I looked at my internals they were finally there To sit on my workbench and stink up the air. Audio track by RojoDelChocolate. Here's the 48,000 mile-old 7-bolt I blew up summer 2011 after over 150 drag passes, a half dozen Dyno sessions, 4 transmissions, 3 clutches and 10 years of hard all-weather use.





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.





Valve lapping trick on a Citroen 2CV...
I did a video earlier showing this trick on a C114 Maserati engine but the video quality was not that great. So there is a new one... Enjoy!





Dodge Neon - Removing the Rocker Arms and Camshaft from Cylinder Head
2001 Dodge Neon - Review of removing the rocker arms and camshaft





2000 Dodge Neon Head and Timing Belt - Part 2
This video includes the clips from part one butinlcudes the SOUND and a SLIDE SHOW from the project. Inspection - This is our brother Gregg's Car neon. The water pump seized and blew the timing belt. We decided to take it all the way down to the head because there was some question that a valve had bent as well. But other than a TON of carbon, it turned out to be OK. more at http://www.reinsmith.net





Testing for Leaking/Bent Valves
--Please Read-- :) Some of the best advice I can offer you about fixing your car is to search for an online forum related to your car, or even for your specific engine. If you have a popular car or engine, this can be an amazing tool in diagnosing and fixing cars yourself! -------------------------------------------------------------- Directions 1. Get kerosene, gasoline, or break cleaner. 2. Tilt head on its side, with the ports of the valves you're testing pointing up and exposed. 3. Fill the intake or Exhaust ports with the liquid you chose, make sure to use enough liquid to cover the back of the valve head completely inside the port. 4. Look at the valve surface in the combustion chamber for leakage. (Let it sit for several minutes) 5. If there is a leak, you could have a bent valve or just a bad seal of the valve to the head. You might have to replace the valve, or just use some lapping compound to lap the valve/seat to resurface. 6. Repeat for the other side if you wish. 7. This is a great time to replace valve seals if you have noticed they are worn too much. 8. If you have any questions, please post them here and I'll try to answer them quickly. -------------------------------------------------------------- You just tilt the head on one side or the other depending whether you want to test the intake or Exhaust valves. I'm testing the intake valves in this video. I did this way because I didn't have the leakdown test equipment, but also because I wanted to replace my head gasket anyway. I wouldn't say this is the best way to test initially if you suspect leaking or bent valves because it requires you remove the head. Try just a regular leakdown test first. But if you're taking it off anyway it's pretty nifty and doesn't require the leakdown test tools. There are several methods to do this, this is just the one I chose in my situation.





Valve job trick on a Citroen SM / Maserati 3 Liter engine...
A little trick that I learn on the internet some time ago. The lapping tool keeps slipping when the valve has carbon on it or the lapping compound oil get to vacuum cup. It is annoying, isnt it? I hope this helps :o) http://3lmaseratismrebuild.blogspot.com/





Valve Lapping
Hand lapping valves on an RB26DETT head





Dodge Timing Belt Replacement
Dodge neon Timing Belt Replacement





At-home Leaky Valve Test
To check if you have leaky valves, on the removed head, reinstall the sparkplugs, flip it over and fill with fuel. A bad valve will leaky quickly. It takes the valve on the right approx 2 minutes to leak all of the fuel. The one on the left had been tested 3 hrs earlier and was still full! That's what a good valve should do. Sorry for the crappy quality but you get the idea.





Which car is faster? Which Car is Faster?




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