VW Cylinder Honing with Torque Plate

Watch as John @ Costa Mesa R&D Automotive Machine discusses how to hone air-cooled VW cylinders for roundness using a special torque-plate fixture. www.engine-machining.com 949-631-6376

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Autos & Vehicles

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• vw
• 1500
• 1600
• aircooled
• air
• cooled
• air-cooled
• cylinder
• honing
• torque
• plate
• fixture
• plateau
• hone
• sunnen
• cv616
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• john
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[tubedude101]

How much does it cost to buy one of those honing bore machines is it very expensive and what type of device are you using to check the presurre inside the cylinder bore

[fiatnutz]

@tubedude101 - about $49K, the dial bore gage and setting fixture is another $1800

[citydriver]

because he only needs the pressure on the cylinder to get it round he dosent need a seal

[tsifreak]

John, What about using also the head gasket type the customer will be using on the engine???

[NBSV1]

@86Ivar You aren't really making teeth. But, looking to make a pattern of scratches. That way the cylinder has a rough pattern and the cylinder and rings can wear to each other quickly creating a good seal. You can buy different tools to do this. Some are more aggressive and are more intended to straighten a worn cylinder or make it bigger. Others are designed to simply produce the scratches.

[NBSV1]

@tsifreak I see you posted a year ago, but. These VW engines don't use a head gasket. The cylinder is cast iron and the head is aluminum. They are machined well, and when torqued down basically squish together. Don't see VW motors with super high compression and there isn't any water to seal so a gasket isn't really needed.

[scotts439]

Hi John, Do you ever put a deliberate taper in a air-cooled jug like this? I recently spoke with a VW engine builder and he does. What are your thoughts?-scott

[Balls6689]

usually anything that you can make that would be the same size as the head itselfe, that way you get to spread the same amount of torque that you would if the heads were installed.

[86Ivar]

Is it true that the perfect hone is made up of downward facing "tooths" that gives more friction to the rings when piston is moving upwards, to gain more compression seal? if so, how is it possible to make such "teeths"??

[zapwatt]

Yeah bro, I GET that but I am not going to chop up a much rarer F.I.A.T. or Justy head for this purpose.  Dig?

[sthalwille]

its the cylinder head itself  must be effective :)

[zapwatt]

I have heard about people using a torque-plate made from inch thick iron or steel. Is that also effective?