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View Full Version : Cylinder Head Crack Detection Methods - DIY


dom14
18th July 2017, 04:26 AM
This is the old school backyard method of pressurizing the water jacket while the head is dippped in water.

CHECK CYLINDER HEADS FOR CRACKS AT HOME W/ A HOME MADE PRESSURE TESTER (https://www.youtube.com/watch?v=A26KfDj6wAM&t=279s)

These are the chemical spray tests.

Finding Cracks in Engine Parts (https://www.youtube.com/watch?v=llHg1ZEctgU)

Chemtools CT-WCFF Metal Crack Detection Kit (https://www.youtube.com/watch?v=uw96MopXzXY)


http://www.chemtools.com.au/product/welding-chemicals/welding-chemicals-sub/chemtig-weld-crack-and-fault-finder-kit/

http://wbtools.com.au/products/chemicals/dye-penetrant-crack-detection-kit/

https://www.blackwoods.com.au/part/00977405/flawfinder-kit-vw-rocol-3-part

http://www.ebay.com.au/itm/Dye-Penetrant-Crack-Inspection-Kit-Sherwin-NDT-/111104885140

https://www.bobthewelder.com.au/Crack-and-Flaw-Detection-Chemtool-3-Part-Kit..html
mudnut
18th July 2017, 09:43 AM
We used to check locomotive turbine blades for cracks, using the spray dye and powder method. As for the bubble test, you are gunna need a huge fish tank to to hold a straight six, Dom.
dom14
18th July 2017, 02:44 PM
We used to check locomotive turbine blades for cracks, using the spray dye and powder method. As for the bubble test, you are gunna need a huge fish tank to to hold a straight six, Dom.

I picked up a plastic bucket from the side of the road. That should do it. :D
dom14
18th July 2017, 02:58 PM
We used to check locomotive turbine blades for cracks, using the spray dye and powder method. As for the bubble test, you are gunna need a huge fish tank to to hold a straight six, Dom.

I've got no idea what you meant above, so I googled.

https://en.wikipedia.org/wiki/Gas_turbine

https://en.wikipedia.org/wiki/Gas_turbine_locomotive

Is that what it is?
mudnut
18th July 2017, 07:07 PM
Nah. Locomotives here are 2 stroke diesels that use turbos or are roots blown to push air into the cylinders.
dom14
18th July 2017, 11:52 PM
Nah. Locomotives here are 2 stroke diesels that use turbos or are rootes blown to push air into the cylinders.

Damn! :D I'm gonna have to pass that. No way I have enough patience to understand what a two stroke diesel is, let alone turbo. ;)