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Crankshaft Oil Hole Chamfering

Watch as John @ Costa Mesa R&D Automotive Machine chamfers the oil holes on a Fiat stroker crankshaft. www.engine-machining.com (949) 631-6376


 


More Videos...


Crankshaft Balancing Counter Weight Reduction
This big block Chevy engine is getting a trim job on the crankshaft counter weights because we are installing some .400" longer connecting rods with some very light forgerd pistons. We had to remove a total of 400 grams to get the crankshaft to balance correctly. Costa Mesa R&D Automotive Machine Shop (949) 631-6376 Don't forget to 'Click' and SUBSCRIBE and tell your friends about this channel.





Ford Mustang 3,8 Liter - Corrosion Damage Repair Process
John Edwards @ Costa Mesa R&D Automotive Machine discusses how he repairs corrosion damage on a 3,8 liter Ford Mustang aluminum cylinder head. www.engine-machining.com (949) 631-6376





VW Drag Racing Piston Lightening
Follow along as John Edwards @ Costa Mesa R&D lightens a set of forged pistons for Robert Kong's hot Karmen-Ghia drag machine. www.engine-machining.com





Subaru Sleeve Installation
Another race prep modification that is performed by John @ Costa Mesa R&D Automotive Machine is to install a set of ductile iron sleeves in the Subaru engine. Check out how its done. www.engine-machining.com (949) 631-6376





Crankshaft Refurbishing
Many of you have seen this one before. I apologize if bringing it back offends anyone. Domestickilla gave me a crankshaft, and it's a nice one that I want to clean up and use again. You'll be seeing a lot of it and because of this, this video deserves to be here. I fixed what I broke, and this was my experience. In this video Ballos Precision Machine demonstrates magnetic dye penetrant testing, crankshaft polishing and inspecting the balance of a "butchered" 4g63 6-bolt crankshaft.





Blueprint 104 - The Crankshaft
It's important to know what you've got even before dealing with the machinist. If you want to inspect a crankshaft, this is how you do it. I detail the process of removing the crank and what to measure. All specifications in this video are illustrated with a 6-bolt 4g63 turbo block, but are all actually the same for 7-bolt engines with the exception of the rod widths.





How to polish a crank ( crankshaft )
Engine-Guru.com Presents a video on how to polish your crank shaft. Any questions call 616-430-3114 ask for KYLE. We are located out of Grand Rapids, Michigan.





Mercedes Benz Alusil Cylinder Conditioning
See how this different material is machined by John @ Costa Mesa R&D Automotive Machine. www.engine-machining.com 949-631-6376





Static crank balance
Testing static crank balance on a Honda CR 500 after some balancing is done. The steel bar replacing the piston does weigh 54% of piston.





Crankshaft grinding Eagle 4340 Forged SBC Crank
CPMotorworks, Inc of Janesville Wi shows what is needed to repair poorly ground journals of an aftermarket crankshaft. We were able to remove .002" from these main journals to correct the hourglass shaped journals that were the result of a poorly dressed grinding wheel and over-polishing.





Con Rod Mods-01.wmv
Here's another connecting rod modification that John Edwards of Costa Mesa R&D Automotive Machine performs to reduce reciprocating weight. www.engine-machining.com (949) 631-6376





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





6-bolt 4g63 Crankshaft Chamfer & Oil Clearances
These are some things you need to think about during your build. Some engines don't have any chamfer on oiled journals whatsoever. All equipment like that can benefit from at least a light chamfer like the one that's on a stock Mitsubishi crank shown in this video. When you Chamfer an oil passage, you create a low-pressure zone where the edges of the oil passage lift away from the bearing as it passes over it. The principles of fluid dynamics dictate that if there wasn't an available substance to displace that low pressure zone (in this scenario, there is an oil supply), cavitation might occur. If we were talking about aerodynamics, the effect would be lift. An extremely-advanced or leading chamfer is actually capable of sucking oil off of a flat bearing, whereas a trailing chamfer vacuums oil out of a gallery and does a better job of spreading it around. The modification that was performed here is intended to increase oil flow to the mains and the rods. It's mentioned in the video that I'm setting up my rod oil clearances on the looser side of spec. This will decrease block oil pressure because more oil will be able to leak past the fillets of the crankshaft and back to the pan. But there's another modification being performed. A balance shaft elimination. There will be lots of debate about this in the coming videos as that transpires, but one of the side-affects of doing a BSE is increased oil pressure. With several internal oil holes plugged off inside the block, I will have a spike in oil pressure. I had my chamfers cut straight in order to offer the largest practical surface area to apply oil to the mains and rods. My intention is to relieve some of this oil flow that doesn't have anywhere else to go. With the added flow, the straight chamfer is actually beneficial to the mains, allowing them to intake more oil as well as to spread more of it on the flats below the grooved upper bearing. The animations illustrate this completely. They were created by yours-truly. I know the oil hole on the mains is on the wrong side. It was too much work to fix, but they get the point across. Don't laugh at them any harder than I did.





D-16 Honda Block Modification
See how to modify your Honda engine when you install H-Beam connecting rods. Brought to you by Costa Mesa R&D Automotive Machine. www.engine-machining.com (949) 631-6376





SBC Valve Guide Installation
John @ Costa Mesa R&D Automotive Machine describes how to replace valve guides on the popular small block Chevrolet cylinder head. www.engine-machining.com





Which car is faster? Which Car is Faster?




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