Checking prop on Mitchell 31

Croftie

Active member
Joined
19 May 2015
Messages
736
Visit site
Is that a manifold box for attaching all the hull fittings to, rather than to the hull side?
As far as I know its an access tube in align with the prop. Certainly the removable top cover is above waterline. At the very top of the picture you can just see the rudder stock.
 

Firefly625

Well-known member
Joined
18 Mar 2009
Messages
6,379
Location
Home=Surrey / Boat=Hamble
Visit site
It occurred to me that if the top of the box was raised to deck level any water would wash onto the deck, not into the bilges.

Maybe a second box that fits over the original, which slides up and down; in rough weather you could just slide it up to give more height above the water line.

that would mean of course I would not be able to reach down with my hand and clear the prop. I think there is a danger of overthinking a solution to what isn't actually a problem..
 

Fantasie 19

Well-known member
Joined
23 Mar 2009
Messages
4,503
Location
Chichester, West Sussex
Visit site
I'd definitely be opening that hatch very carefully, but I think it could be less of a problem than you imagine. The outboard well in some small sailing boats is quite similar, and the water in those always seems to stay reasonably calm despite waves outside the hull.

Pete

+1 ... the well on my old Fantasie was about 12" or so above waterline, but I never remember the water in it slopping about even when surrounding conditions were fairly lively
 

Firefly625

Well-known member
Joined
18 Mar 2009
Messages
6,379
Location
Home=Surrey / Boat=Hamble
Visit site
oops, just realized that!
FF, why the two regulators are so much apart? Looks like you can turn rudder to port a lot more than to stbrd!

cheers

V.

Hi Vas, well indeed. It disturbs my OCD nature, but nothing has worked lose and it looks like they have been set like that from new so I'm not going to fiddle.

Even more odd is I have not noticed any difference in turning circle port or starboard and its the same number of turns of the wheel from straight ahead position to right or left hand lock.... go figure?!
 

rustybarge

Active member
Joined
9 Aug 2012
Messages
3,665
Visit site
that would mean of course I would not be able to reach down with my hand and clear the prop. I think there is a danger of overthinking a solution to what isn't actually a problem..

With my limited experience of clearing props, I've found thats its vitually impossible to unravel ropes off a prop; a sharp knife with a serrated edge works best to hack pieces off.

Idea no.2: get a butl collar made to fit around the box which would be easy to raise like a bellows, to gain more height above the WL. I know its very easy to join up pieces of butl rubber with a heat gun process. Only deploy in rough conditions.

To gain access to the prop you could use one of those garden trimming poles with a blade mounted on the end.
 

prv

Well-known member
Joined
29 Nov 2009
Messages
37,361
Location
Southampton
Visit site
Even more odd is I have not noticed any difference in turning circle port or starboard and its the same number of turns of the wheel from straight ahead position to right or left hand lock.... go figure?!

Perhaps the tiller arm is offset to one side with respect to the rudder? I fitted my autopilot arm slightly offset, to get the best geometry in a tight space. I made a mark on a cross-beam to show where the arm should point with the rudder centred.

Pete
 
Last edited:

Canopy Locked

Well-known member
Joined
5 Dec 2006
Messages
1,084
Location
Nth East Scotland
Visit site
I used to have a Mitchell31 (Lovely boat) and I have had a rope around the prop. I used the weed box to access and remove. It's not a job that I'd recommend attempting at sea - you need long arms. Just out of interest I attach a pic (I hope it attaches at least) of the set up on my boat - You can see there is an "internal" box that is removed by undoing the bolts on the metal frame. weed box.jpg
 

Firefly625

Well-known member
Joined
18 Mar 2009
Messages
6,379
Location
Home=Surrey / Boat=Hamble
Visit site
With my limited experience of clearing props, I've found thats its vitually impossible to unravel ropes off a prop; a sharp knife with a serrated edge works best to hack pieces off.

Idea no.2: get a butl collar made to fit around the box which would be easy to raise like a bellows, to gain more height above the WL. I know its very easy to join up pieces of butl rubber with a heat gun process. Only deploy in rough conditions.

To gain access to the prop you could use one of those garden trimming poles with a blade mounted on the end.

I carry a sickle on board.
 
Last edited:

Firefly625

Well-known member
Joined
18 Mar 2009
Messages
6,379
Location
Home=Surrey / Boat=Hamble
Visit site
I used to have a Mitchell31 (Lovely boat) and I have had a rope around the prop. I used the weed box to access and remove. It's not a job that I'd recommend attempting at sea - you need long arms. Just out of interest I attach a pic (I hope it attaches at least) of the set up on my boat - You can see there is an "internal" box that is removed by undoing the bolts on the metal frame. View attachment 52199

thanks for the info
 

prv

Well-known member
Joined
29 Nov 2009
Messages
37,361
Location
Southampton
Visit site
Just out of interest I attach a pic (I hope it attaches at least) of the set up on my boat

Thanks, that answers another question I had - is this a standard feature on these boats, or a one-off on the OP's? Seems to have been at least an option or a common mod, if not standard.

Pete
 

dave p

Member
Joined
27 Jun 2010
Messages
88
Visit site
I used to have a Mitchell31 (Lovely boat) and I have had a rope around the prop. I used the weed box to access and remove. It's not a job that I'd recommend attempting at sea - you need long arms. Just out of interest I attach a pic (I hope it attaches at least) of the set up on my boat - You can see there is an "internal" box that is removed by undoing the bolts on the metal frame. View attachment 52199
here's what happened to your old Mitchell rob
http://www.findafishingboat.com/mitchell-mark2/ad-73324
 

Keith-i

Well-known member
Joined
4 Jul 2012
Messages
1,451
Location
Jersey
Visit site
Here's a side view of the access box in our Channel Island 32. Very useful and reassuring to have. Opened it once when we had a vibration issue mid passage and no problem with any water ingress whilst gently rolling in the open sea. It is reasonably clear of the water line and has a strip of foam to seal against ingress.
P1000147low.jpg
 
Top