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Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 22748
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Hi I have twin KAMD44P volvo penta engines and one of which

Customer Question

Hi I have twin KAMD44P volvo penta engines and one of which is not coming up to WOT,
There is a strong outflow of steam from the crankcase breather pipe of the underperforming engine when it warms up!
What can account for this.
both engines have about 550 hours up,
Submitted: 4 years ago.
Category: Car
Expert:  Matt replied 4 years ago.

If theres a lot of steam coming out of the breather then I'm afraid a cracked block or head is quite likely

If its using coolant then this another pointer towards this

as somwething try which can sometimes provide a permanent fix then a bottle of this may help