Waukesha cylinder head water erosion caused by untreated water

The dangers of not using the correct additives with your coolant system

Engines

05/15/2019

We’ve got 12 Waukesha cylinder heads in for an overhaul at the moment and every single one of them has water erosion damage.

I thought I’d make a quick video so you can see the damage caused when correct additives are not used with your coolant system.

Here’s what you’re seeing on this video:

  • That hole is NOT meant to be here. The untrained eye might think that it’s part of the water jacket, but it’s actually a result of water erosion damage
  • Waukesha cylinder head water erosion caused by untreated water

  • The cylinder head gasket will prevent the coolant leaking for a time, but then the engine will suffer a loss of coolant and damage through overheating
  • So, prevention is about having the right additive mix in place and systems to make sure this is maintained
  • Once this damage has occurred, the head could be replaced, but if it’s like these Waukesha heads, they are no longer in production (and this would be a costly choice)
  • One alternative option would be to convert a gas engine head, or in this instance, what we will be doing for this customer is to machine out the hole and plug it

This is a process we’ve used many times before, in particular on Ruston cylinder heads and gives a far quicker and cheaper option for the operator.

Not only that, it eliminates the problem of trying to source replacement heads, which in this case are obsolete.

I hope this shows the importance of getting your coolant additives right, but if you’ve got any questions, engine issues or are looking at assembly repairs and need a trustworthy engine specialist with an excellent track record for your job, contact us or call +44 (0)1206 673101.

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