Hi everyone,

On Saturday morning we left shoreham in my 19ft cabin cruiser for
Littlehampton, to take a look at the Regatta and then cruise up river for a
quiet weekend.

However, after a lovely journey whilst the sun was rising, we entered
littlehampton harbour at low tide. Whilst traveling up the centre of the
river Arun, we hit an unmarked, rock/shingle bank in the centre of the
river.

My 20hp Chrysler moaned as the propeller was jammed and then started to rev
very quickly.

I stopped the engine and dropped anchor, and lifted the prop out of the
water, only to find that there was no longer drive getting from the engine
to the prop.

I have not dismantled the leg yet (my boat is still stranded in
Littlehampton until I can get her back to Shoreham - need to arrange a tow
- somehow) but could anyone advise me on the likelyhood of actually having
trashed the gearbox (as opposed to just having popped the linkage off) and
if so, am I likely to be able to economically fix this?

Does anyone have parts for this engine for spares? Alternatively, do you
know of a good marine breakers that may be able to help with this??

I'm on a bit of a tight budget and this has the potential to ruin the rest
of the boating season for me :-( .

Thanks in advance.


Simon

M.V. Iona - Shoreham

Oh dear.

I stopped the engine and dropped anchor, and lifted the prop out of the
water, only to find that there was no longer drive getting from the engine
to the prop.

I don't know your particular engine but whenever I've done this or
heard of someone else doing it, it has always been the drive pin.
This, as I recall, is designed to fail before any really expensive
bits are damaged.

Hope this is what's happened in your case.

Lindsay

Lindsay - UK wrote:

Oh dear.

I stopped the engine and dropped anchor, and lifted the prop out of the
water, only to find that there was no longer drive getting from the engine
to the prop.

I don't know your particular engine but whenever I've done this or
heard of someone else doing it, it has always been the drive pin.
This, as I recall, is designed to fail before any really expensive
bits are damaged.

Hope this is what's happened in your case.

Lindsay


Ahh, thanks for your input, will check that.

Is the drive pin the split pin that is used to hold the prop on??

This pin still appears intact.

Or am I looking at the wrong pin?

Simon

Simon,

Drive pin is also known as a shear pin I think - will be located along the
prop shaft, not on the front face of the prop - that's just a split pin to
keep the prop nut in place.

Not up to speed on inboards so I cannot tell you exactly where it is...
would be worth locating a manual or finding someone "in the know".

Newer & larger outboards often have a rubber slip ring.

Hope you get it sorted - if it is the shear pin, it will not cost a lot! How
about the propeller - damaged?

David


"Mike" wrote in message
...
In article , Lindsay - UK lindsayl@
ndirectnodrivel.co.uk writes
Oh dear.

I stopped the engine and dropped anchor, and lifted the prop out of the
water, only to find that there was no longer drive getting from the
engine
to the prop.

I don't know your particular engine but whenever I've done this or
heard of someone else doing it, it has always been the drive pin.
This, as I recall, is designed to fail before any really expensive
bits are damaged.

Hope this is what's happened in your case.

Lindsay

And this was my 'facility'. I always carried a box of drive pins. In my
case, soft brass, about 25mm long by about 4 mm diameter. Pop one in as
you push the broken one out. Can be done from within the boat and takes
5 minutes.

Finger crossed that this is your problem.

Mike


--------------------------------------------------------------------------
------
British Pacific Fleet Hayling Island Sept 5th - 8th
Castle Class Corvettes Assn. Isle of Wight. Oct 3rd - 6th.
R.N. Trafalgar Weekend Leamington Spa. Oct 10th - 13th. Plus many more
National Service (RAF) Association Scarborough. Nov 7th - 10th (Nearly
Full)

The "shear pin" sounds most likely. Remove the "split pin" and the nut.
Remove the prop and look at the FWD face. You should find a "sheared" brass
pin which can be removed from the prop shaft with a small pin punch. Once
you see it with the prop removed you will understand it's purpose.

In article , David Rees
writes
Simon,

Drive pin is also known as a shear pin I think

:-)) Sorry, that is what I was thinking of. Forgot the name of it :-))
Thank you.

Mike


--------------------------------------------------------------------------------
There are more planes in the sea,
Than there are submarines in the air.

Let's hope it is the drive/shear pin then.

Thanks for your advice everyone.

Have fun

Simon

Hi all,


Again, thanks to all who replied to this earlier.

Just thought you may like to know, I checked the shear pin and it is intact,
leaving a problem in the gearbox as the only possiblity as i've checked
everything else and had several conversations with a local outboard
engineer :-/

So, it's an expensive mistake - my old engine is un-economical to repair
unless I can find a second hand gearbox unit.


Don't suppose anyone has got an old Chrysley 20 breaking for spares?


Have fun all


Simon

Thought I saw one for sale on E-Bay

Dave


"rune" wrote in message
...

Hi all,


Again, thanks to all who replied to this earlier.

Just thought you may like to know, I checked the shear pin and it is
intact,
leaving a problem in the gearbox as the only possiblity as i've checked
everything else and had several conversations with a local outboard
engineer :-/

So, it's an expensive mistake - my old engine is un-economical to repair
unless I can find a second hand gearbox unit.


Don't suppose anyone has got an old Chrysley 20 breaking for spares?


Have fun all


Simon