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This Weekend's Achievements


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Not this weekend but over the last month i have been doing something new. I had a delivery planned Tahiti to Auckland but it failed to materialize. Angela had gone to visit her mum in Florida so

Got 10 boats towed back into the environment before 10:30 this morning, waited until tide came in, floated off the cradle and went to the mooring only to find it had become an ecosystem all of its own

School holiday cruise me and my boy

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1 hour ago, Frank said:

Worked on removing the leaking injector pump from our Perkins 4108. In true british engineering fashion and after 6 hrs of cursing  the last bolt requires a 7/32 ball ended allen key bit on a 600 mm extension shaft with a universal joint in the middle. Gotta love old english diesel engines....not.

at least they don't rust on the outside...

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On 14/12/2020 at 8:09 AM, aardvarkash10 said:

at least they don't rust on the outside...

The symptoms that caused it to be removed were interesting, basically the seal on the input shaft leaks causing fuel to contaminate the engine oil. Eventually the diesel rich mix gets to the point where it will support combustion then the engine revs madly independent of the throttle and the fuel cutoff wont stop it. To add to the alarm it is attended by billowing clouds of white exhaust, I'd  never heard of such a thing nor experienced it until now. In any case its a known issue with the CAV pumps on the Perkins but hopefully we have not done any damage, I stopped it by throwing it into gear when the revs cycled down.

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The other way to stop it is to block the air inlet. I've never experienced a run-away engine, but I have practiced blocking the air inlet at the silencer to kill the engine. Only issue with this is having to get up close to an engine that you are worried is going to explode...

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36 minutes ago, Fish said:

The other way to stop it is to block the air inlet. I've never experienced a run-away engine, but I have practiced blocking the air inlet at the silencer to kill the engine. Only issue with this is having to get up close to an engine that you are worried is going to explode...

I've seen a VERY large diesel go into runaway.  Ain't no way I was going anywhere near it and I suspect it would have sucked a horse up the intake with little obvious impact except to the horse.

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