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Old 10-14-2012
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Test running an old Volvo Penta while in storage?

Hi everyone, Can anyone tell me how to test run my Volvo Penta MB10A when its out of the water? Something about disconnecting the water inlet hose and a five gallon bucket. It has not been run for seven years. First Sail boat. Grampian 30. Thanks
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Old 10-14-2012
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Re: Test running an old Volvo Penta while in storage?

Disconnect the inlet RWC hose at the through-hull and put it into a full bucket, the pump should draw from the bucket until it's sucked dry, of course.

Most likely you'll need to find a way to extend the hose to get up into the bucket and down to the bottom (a temporary splice fitting and some extra hose) Alternatively disconnect the hose at the pump inlet and attach a temporary longer hose.

Is this a RWC or FWC engine? Doesn't really make a difference, but if FWC you'll want to flush the cooling cct and replace the coolant, as well as all the other fluids prior to this attempt to run. Having the RW side of the heat exchanger flushed/cleaned would be another good idea, but probably not necessary just to see if the motor will run.

Turn it over by hand prior to this to ensure that the engine is not siezed.
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Re: Test running an old Volvo Penta while in storage?



Ideally the motor would have some type of compression release that will allow it to be turned by hand FIRST to be sure nothing is stuck from sitting

It it is good then you can spin it a bit with the starter to be sure that oil pressure has given all the bits a fresh dose of oil before stressing the motor

The big issue is NOT pumping through water before it will run as the waterlift muffler will fill up and back flow into the motor IF there is no exaust pressure to force it out

Once your sure it will fire the water needs to be supplied by suction from the raw water pump as forcing it through with a hose can again FLOOD the motor
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Re: Test running an old Volvo Penta while in storage?

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Originally Posted by tommays View Post
.....

The big issue is NOT pumping through water before it will run as the waterlift muffler will fill up and back flow into the motor IF there is no exaust pressure to force it out

Once your sure it will fire the water needs to be supplied by suction from the raw water pump as forcing it through with a hose can again FLOOD the motor
Tommays is right on with this comment.. should have mentioned that first off myself.. i'e' ... don't put the hose into the bucket until the engine has actually fired....
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Old 10-14-2012
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Thanks so much. Just the info I needed! You guys make yachting much less intimidating.
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Here's a link to a page with a video showing how Maine Sail runs the engine while out of the water.

http://forums.catalina.sailboatowners.com/showthread.php?t=136339&highlight=winterizing
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Re: Test running an old Volvo Penta while in storage?

I'll just add one item to the above good advice - if you want to run the engine for a while, like to fully warm it up, have a hose handy to keep the intake bucket full. When I was running my Perkins 107 on the hard, the bucket lasted no time at all - I had to keep the hose running full blast to stay ahead of it.
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Re: Test running an old Volvo Penta while in storage?

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Originally Posted by SloopJonB View Post
I'll just add one item to the above good advice - if you want to run the engine for a while, like to fully warm it up, have a hose handy to keep the intake bucket full. When I was running my Perkins 107 on the hard, the bucket lasted no time at all - I had to keep the hose running full blast to stay ahead of it.
Our engine sucks a 5 gallon bucket dry in about 45 seconds, a fill the bucket hose is pretty much a necessity...

I would strongly urge the OP to replace any impeller that has been sitting for seven years as it will like just self destruct upon use, after sitting for that long..
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Re: Test running an old Volvo Penta while in storage?

I've got the VP MB10A in my boat and use the above described bucket method for winterizing. Works great.
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