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Old 08-13-2010, 04:23 PM   #1
doublezo
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Default crank slinger?????????

im getting ready to put the crank back into a 51 merc engine. ive noticed that it doesnt have the front slinger on it. (the slinger that goes on next to the crankshaft gear) is this supposed to be on there? i have one on another motor but cant figure out how it goes on, or how to get it off. help! thanks.
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Old 08-13-2010, 04:43 PM   #2
51 MERC-CT
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Default Re: crank slinger?????????

Slips on in front of the gear with the flange facing out. The spiral sleeve goes on next.
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Old 08-13-2010, 04:46 PM   #3
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Default Re: crank slinger?????????

how would i get one off of a crank? the one i have is stuck it seems. i dont want to mangle it because i need it for the other motor. thanks.
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Old 08-13-2010, 04:55 PM   #4
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Default Re: crank slinger?????????

Little tapping, little prying, little penetrating oil.
Or use a gear puller to pull the gear. (the slinger will come off with it)
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Old 08-13-2010, 04:59 PM   #5
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Default Re: crank slinger?????????

ok, so just to make sure, 1. get the dowel pin out, 2. get the spiral off somehow, 3. pull slinger.
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Old 08-13-2010, 05:08 PM   #6
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Default Re: crank slinger?????????

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Yes pull the fan belt pulley woodruff key first.
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Old 08-13-2010, 05:16 PM   #7
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Default Re: crank slinger?????????

The factory manual says to pull the pulley spacer, & gear at the same time. They used a special puller to do this but I have a non-factory type puller that works.

Kerby
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Old 08-13-2010, 05:32 PM   #8
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Default Re: crank slinger?????????

thanks guys. got the key out . what a pain. looks like im out of luck for today, im walkin away. . will i to need a press to put it all back together?
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Old 08-13-2010, 05:37 PM   #9
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Default Re: crank slinger?????????

The Merc overhaul manual shows a figure with them tapping it back on using another special tool. A piece of pipe the right diameter & length would work OK.
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Old 08-19-2010, 10:13 AM   #10
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Default Re: crank slinger?????????

back at it with a new gear, slinger and spiral spacer. the gear went on fairly easy, slinger was no problem either. i need some advice on the spiral spacer. it fits really tight. any tips? we boiled it and still a no go. its been a lot of work to get it barely on. the spacer is new from macs.
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Old 08-19-2010, 10:15 AM   #11
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Default Re: crank slinger?????????

I lightly heated my last on and slipped it on? Maybe not the right way but it worked.
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Old 08-19-2010, 05:00 PM   #12
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Default Re: crank slinger?????????

It's a tight fit. Find a piece of pipe theat will slip over the crank snout and pound it on. You do have it aligned with the keyway I hope.
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Old 08-19-2010, 05:22 PM   #13
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Default Re: crank slinger?????????

It's been awhile since I did this, but I think you can use the old gear to drive on the spiral seal sleeve, put the sleeve on, then the old gear, then a piece of pipe against the old gear and tap it on. heat up the spiral sleeve first, have everything ready to go before the sleeve cools down. make sense?
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Old 08-20-2010, 01:13 PM   #14
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Default Re: crank slinger?????????

thanks for all the help. the gear and slinger went on fairly easy. the spacer was a nightmare. its on and now the crank is in. hopefully get to fire the engine in a few days. thanks , brian.
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