Well while John's away in Wales doing something or other in a tent he asked me to look after the blog. His exact words were . . . "perhaps you could do a few techy things?"
As it happens we've got a few techy things on this week.

The biggest part of my job is the planned maintenance for the Mersey. This varies in complexity from checking bulbs are working to oil changes on the engines. These days we don't just change the oil annually or every so many hours (as you would in your car). What we do is every 3 months I sample the oil from both engines (see above from the starboard engine) and send it off to Finnings (www.finning-sos.co.uk). The clever scientist people at Finnings then test the oil and carefully analyse the results. They test for water and fuel in the oil, different metals in the oil and the condition of the oil itself. By comparing the results to set standards and to previous results they can detect engine problems before the user notices them. Coolant in the oil for example is a good indicator that a head gasket is leaking, increased metal levels can show that bearings are wearing.
If Finnings recommend that the oil is changed then this is done as soon as possible. Once the engine has run for about 10 hours on the new oil another sample is taken. This then gives the new benchmark for that engine. By doing this we are able to extend the period between oil changes from annually to about 2 yearly. This means less oil and filters to buy and dispose of, good for the environment and good for our pocket too!
For those of you who remember their periodic table, here's a list of what they test for.

I've put our samples in the post, should have the results by the end of the week. Fingers crossed they should be OK.
In the mean time if anyone's got any "Techy" questions please feel free to ask away.
Dave




