Shrapnel

lemming · 28 April 2013, 17:17

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

Nos4r2 · 28 April 2013, 18:48

got a pic of the swarf?

lemming · 28 April 2013, 18:57

Ah there is life out there.......That's me going to the shed with my camera now give me 10mins Nos4r2
Cheers

lemming · 28 April 2013, 19:10

Shrapnel

Prop

Top lower leg

MA-PT 60 BF 1996

Nos4r2 · 28 April 2013, 19:26

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.

Bigmuz7 · 28 April 2013, 19:26

Well it aint swarf .. any other contamination of the oil ?

lemming · 28 April 2013, 19:34

The oil is fine mate.
So do I start stripping at the prop end ?

Model Mariner MA-PT 60 BF 1996

Nos4r2 · 28 April 2013, 19:42

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.

lemming · 28 April 2013, 19:48

Cheers bud
A Redbay owner on here has misplace the manuals PM in coming 8o)

Nos4r2 · 28 April 2013, 20:07

Ah, there's no castellated ring on that one. I think that's probably as well, it'll make stripping it easier!

Poly · 28 April 2013, 20:20

Quote:

Originally Posted by Bigmuz7

Well it aint swarf .. any other contamination of the oil ?

It aint 3mm either!

lemming · 28 April 2013, 20:35

Ok ok its unusual for me to underestimate size.
I've got my pullers in my hand now ;O)

Bigmuz7 · 28 April 2013, 20:44

Lol .. a look see is on the cards though ... I'm thinking stainless prop maybe hit something .. which is notoriously ouchy on the box ..

lemming · 28 April 2013, 20:52

RYA level 2 instructor since Moses parted the Red Sea............. I very think not Bigmuz7..... lol

Pete7 · 28 April 2013, 21:32

Quote:

Originally Posted by lemming

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

lemming · 28 April 2013, 21:58

Joking.....
It's got an ali prop tho, both of them do both. They are same age same hours same transom.

To be continued.....

lemming · 29 April 2013, 21:24

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

mister p · 29 April 2013, 21:29

Well lemming, I doff my cap to you. That was a good job well done.

lemming · 29 April 2013, 21:31

Ha that was the easy bit I think......

Bigmuz7 · 29 April 2013, 21:39

For the enlightenment of others, given your undoubted experience, can you suggest what caused the failure ?