Seagull forty crankshaft case leak

Having problems with a Seagull? - ask an expert here

Moderators: John@sos, charlesp, Charles uk, RickUK, Petergalileo

Post Reply
african imp
Posts: 395
Joined: Thu Jan 03, 2019 5:44 am
Location: Hout Bay

Seagull forty crankshaft case leak

Post by african imp » Wed Jan 23, 2019 7:23 am

Now that I have my 1974 Forty running I see a cranckshaft case join leak.

This does not seem to affect the running of the motor, it is a low pressure side anyway.

I ask should I worry? as stopping such a leak is a big strip down and really not what I want to do.

Did it leak before I swopped the original nuts and bolts over?

The answer is that I do not know, I will check the pictures pre yesterday and see if I can see anything?

I had a look and the pictures were all taken from the other side of the engine, plus only when the motor was running for the first time in recent years, so there are no shots of the side with the leak showing.

The nuts and bolts were removed one at a time from a cold enging and before I ran the motor that day. wanting to retighten the nuts I allowed the motor to cool right down to cold, then tightened the bolts up a tad more, it has made no difference.


I ran the motor the following day, same result and same leaking, the motor has now been drained of fuel and put away pending my next use for it?

There is no MOT out here on outboards as far as I know, so I should be safe from the law?
You do not have the required permissions to view the files attached to this post.

User avatar
AusAnzani
Posts: 985
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Seagull forty crankshaft case leak

Post by AusAnzani » Thu Jan 24, 2019 5:38 am

I would not be able to sleep knowing its there, and not fixing it, but that's just me aye!

Some Loctite 515 (or similar) on the mating surfaces before reassembly is suggested.

Regards,
S

User avatar
Nudge
Posts: 792
Joined: Sun Feb 15, 2015 2:43 am
Location: Auckland, New Zealand

Re: Seagull forty crankshaft case leak

Post by Nudge » Thu Jan 24, 2019 7:55 am

Did you bead blast it?
"THE KING OF BLING"!
Is it better to over think, than not think at all?

User avatar
AusAnzani
Posts: 985
Joined: Wed May 21, 2014 10:47 am
Location: Australia
Contact:

Re: Seagull forty crankshaft case leak

Post by AusAnzani » Thu Jan 24, 2019 11:54 pm

Nudge wrote:Did you bead blast it?
Good question :). The external surfaces certainly look to have been blasted.

croweater
Posts: 222
Joined: Sat Oct 22, 2011 1:08 pm
Location: South Australia

Re: Seagull forty crankshaft case leak

Post by croweater » Fri Jan 25, 2019 5:58 am

Like AusAnzani said if you are planning to use it I would have to sort it out, does not look like its been bead blasted changing the bolts may have broken the seal.
John

african imp
Posts: 395
Joined: Thu Jan 03, 2019 5:44 am
Location: Hout Bay

Re: Seagull forty crankshaft case leak

Post by african imp » Fri Jan 25, 2019 6:59 pm

Nudge wrote:Did you bead blast it?

No, the finish is original.

Post Reply