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It's Nesting Season Again!


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#1 ggsteve OFFLINE  

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Posted August 18, 2012 - 03:06 PM

I fired up the Craftsman Pro today after a couple of idle weeks and confetti shot out the right side. @*$&#, I know what this is . Since this is the second time I have had to remove a mouse nest from this particular engine I thought I would document the process of removing the engine cowling from a B&S 24hp ELS twin.

First, unhook the headlight wiring to the hood. This is an easy step to forget (Don't ask me how I know).

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The hood lifts off the hinge point when you tip it back a little bit from full open.

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Remove the air filter cover:

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This is where you're likely to start seeing mouse nest evidence. I had already blown it out of here when I took the picture of the air filter:

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It will be necessary to remove the air filter later to remove the cowling but leave it on for as many steps as possible to avoid contamination of the engine.

There are 3 3/8" bolts that hold the cowling on on each side of the engine. Remove these and store them safely:

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Next remove the air filter so that you can get at the two screws under the air filter. I removed these with a medium blade flat head screw driver:

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Next, it will be necessary to remove the flywheel screen. It is held on by four 5/16" bolts:

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I have some wires wrapped around the oil filler tube. Carefully unwind these:

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Unclip the oil drain if you have one like this:

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The engine cowling should now be free. Carefully lift it over the fly wheel, and slightly forward to clear the engine air intake:

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This is what I found under the cowling:

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Before starting to clean up the mess, put on eye protection and a mask if you live where Hanta virus is found, To protect the engine place the air filter back over the intake:

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Between hand picking and blasting with compressed air a lot of stuff will come out of the engine parts. Make sure to get all the fins well:

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Once everything is clean, just reverse the process and put everything back together. The only tricky part might be aligning the middle bolt on each side of the cowling. The order goes - engine housing - engine tin - engine cowling OVER the tin, then bolt.

Here is the engine all put back together before the hood went back on:

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Hope this helps someone, I'm getting real good at it!

Edited by ggsteve, August 18, 2012 - 03:14 PM.

  • KennyP said thank you

#2 jd.rasentrac OFFLINE  

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Posted August 18, 2012 - 03:31 PM

professional work, steve, but where are the eggs :laughingteeth: What a pity that it was a mouse nest... Otherwise a good title for this thread could have been:

The egg is back :thumbs:

Edited by jd.rasentrac, August 18, 2012 - 03:45 PM.


#3 Bmerf OFFLINE  

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Posted August 18, 2012 - 03:36 PM

Mice know what kind of tractor makes the best home, A Craftsman condo! They are industrious and it doesn’t take them long, try placing a mouse trap by where they are entering the shroud if you can, may save you a lot of work next time.

#4 KennyP ONLINE  

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Posted August 18, 2012 - 03:45 PM

Great info there. Now I know what not to buy to keep the mice away! LOL Got a hungry cat?

#5 mjodrey OFFLINE  

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Posted August 18, 2012 - 04:24 PM

Good information and a nice bunch of photos too.

#6 JDBrian OFFLINE  

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Posted August 18, 2012 - 04:28 PM

Thanks for doing such a thorough job of documenting this nasty little problem. The little critters can be a nuisance at times.

#7 KC9KAS OFFLINE  

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Posted August 18, 2012 - 07:46 PM

Are you going to get a cat to catch/eat the mice?

#8 IamSherwood OFFLINE  

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Posted August 18, 2012 - 08:54 PM

Sorry to see all the work those mice put you through.
Try tucking in Bounce Fabric Softener sheets, here and there. I've had
pretty good luck with them. And, also, they're easier to get rid of than a cat.

#9 UncleWillie OFFLINE  

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Posted August 19, 2012 - 05:13 PM

Might want to try to put some wire screen in there to deter them. My Dad had a Buick wagon that had a mouse build a nest in the blower box and then die. After we finally got that nasty smelling thing out we put hardware cloth over the openings and ended the problem.

#10 ggsteve OFFLINE  

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Posted August 19, 2012 - 06:53 PM

Are you going to get a cat to catch/eat the mice?


I have other mouse eliminators on the premises. Here's one of them:

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#11 Delmar OFFLINE  

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Posted August 19, 2012 - 07:33 PM

I hope that mouse eliminator is in a cage. Looks like some sort of viper, I'm thinking Gaboon....




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