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Old 28 April 2013, 12:17   #1
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Shrapnel

Hi Guys
I found a 3mm bit of steel on the magnetic oil drain plug while changing the oil. This 2 stroke mariner 60 bigfoot was struggling to find reverse last summer.
The lower leg is off to change out the impeller, should I pull the gears out as well ?
I'm not sure how to attack this but I can take photos. ;0)
A manual would be great .....

Cheers
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Old 28 April 2013, 13:48   #2
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got a pic of the swarf?
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Old 28 April 2013, 13:57   #3
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Ah there is life out there.......That's me going to the shed with my camera now give me 10mins Nos4r2
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Old 28 April 2013, 14:10   #4
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Shrapnel



Prop



Top lower leg



MA-PT 60 BF 1996
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Old 28 April 2013, 14:26   #5
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OUCH!

I'd have a go at opening the box, that looks like either part of a gear or a dog.

be careful though, it's probably going to be a difficult job to remove the castellated ring that holds it all in.
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Old 28 April 2013, 14:26   #6
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Well it aint swarf .. any other contamination of the oil ?
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Old 28 April 2013, 14:34   #7
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The oil is fine mate.
So do I start stripping at the prop end ?

Model Mariner MA-PT 60 BF 1996
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Old 28 April 2013, 14:42   #8
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Yes, it needs stripping. You'll need a manual. I think I have the manual for the gearbox, but you'll have to make sure.PM me an email addy and I'll send you it.

You might find it a good idea to get a new castellated ring ordered. It's unlikely to come out in one piece.
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Old 28 April 2013, 14:48   #9
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Cheers bud
A Redbay owner on here has misplace the manuals PM in coming 8o)
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Old 28 April 2013, 15:07   #10
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Ah, there's no castellated ring on that one. I think that's probably as well, it'll make stripping it easier!
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Old 28 April 2013, 15:20   #11
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Well it aint swarf .. any other contamination of the oil ?
It aint 3mm either!
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Old 28 April 2013, 15:35   #12
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Ok ok its unusual for me to underestimate size.
I've got my pullers in my hand now ;O)
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Old 28 April 2013, 15:44   #13
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Lol .. a look see is on the cards though ... I'm thinking stainless prop maybe hit something .. which is notoriously ouchy on the box ..
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Old 28 April 2013, 15:52   #14
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RYA level 2 instructor since Moses parted the Red Sea............. I very think not Bigmuz7..... lol
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Old 28 April 2013, 16:32   #15
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RYA level 2 instructor since Moses parted the Red Sea............. I very think not Bigmuz7..... lol
I think what Bigmuz is implying is the weight of a stainless steel prop on a bigfoot engine compared to an Ali prop is causing the problem. think about how the dog clutches go in and every time the gear level is operated from N-F-N etc. That's a lot of weight accelerating then stopping and reversing without the advantage of a clutch to smooth it all out.

I used to cringe when beginners pussy footed about putting it in gear.

Pete
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Old 28 April 2013, 16:58   #16
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Joking.....
It's got an ali prop tho, both of them do both. They are same age same hours same transom.

To be continued.....
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Old 29 April 2013, 16:24   #17
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Ok in from the shed here's the story.
Found where the shrapnel came from


It's the shift cam that lives down here



It was easy enough to get this stripped out so where do I buy the parts,seals & rings ?

I have Loctite 243 medium strength threadlocker will that do or should I get 271 High strength stuff ?

The manual says 2-4-C grease with teflon. What do you guys suggest and from where ?

Cheers for your help
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Old 29 April 2013, 16:29   #18
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Well lemming, I doff my cap to you. That was a good job well done.
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Old 29 April 2013, 16:31   #19
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Ha that was the easy bit I think......
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Old 29 April 2013, 16:39   #20
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For the enlightenment of others, given your undoubted experience, can you suggest what caused the failure ?
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