Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 15-04-2013, 02:34 PM   #1
Too many projects.....
 
pugracer285's Avatar
 
Country: UK
Location: Warsash
Occupation: Sunseeker Sales @ Swanwick
Interests: Making things go fast....
Boat name: Top Gun
Boat make: Sunseeker Hawk 27
Engines: 2x Volvo Penta 5.7 V8s
Cruising area: South Coast

Join Date: Sep 2007
Location: Warsash
Posts: 220
Advice on cutting down stand-off bracket

Hi Guys,

I'm having a few issues with parts compatibility.

The Stainless Marine stand-off bracket has a flange across the top which is hitting the Seastar front mount helm cylinder. The only way I can see this working is to have a local machine shop cut around 1 in off the top of the bracket. This should give the clearance I need.

It's easier to see what I mean in the pics below. I've put a line across where they'd cut - roughly in line with the bottom of the empty bolt holes.

This will also allow me to straighten up the power trim pipework and leave enough room to run the jack plate hydraulic hoses - both of which go under the cylinder.

Question is whether I'm going to significantly weaken the bracket by doing this? It's a pretty heavy duty item and would still have a lot of material left.

In an ideal world I'd actually like to drop the engine by one more hole but can't see there being enough clearance for the steering if I do this.

The alternative is to switch to side mount steering but I'm reluctant to spend another chunk of cash if it can be avoided!

Any advice appreciated.

In terms of mounting height, I am currently setup with the prop shaft around 3/4 of an inch above the hulls. If I could come down one more bolt hole then the propshaft would be parallel with jack plate all the way down.

Skaters etc of similar size are setup with propshaft around 1 1/2 to 1 3/4 inch above the hull bottom. They're obviously lighter and slightly more top speed orientated. Unfortunately there is very little setup info around for this hull so I'm having to compare to anything else single engined of similar size.

The jack has 5in of travel so going up is not a problem, more a question of being low enough to give good holeshot and handling in rougher waters.

Oh and in case you're wondering, it's a Ringcat 22.

James







__________________

pugracer285 is offline   Reply With Quote
Old 15-04-2013, 02:51 PM   #2
Registered User
 
Marinautic's Avatar
 
Country: UK
Location: Poole
Occupation: Mercury/Mercruiser Sales

Join Date: Sep 2007
Location: Poole
Posts: 503
We rigged a Ringcat (extreme version) a few years ago, same lifter setup, but with a 250XS. we mounted the Standoff box lower, and the lifter on the top bolt hole. We used IMCO steering, but I seem to remember that SeaStar would have fitted ok.
__________________

Marinautic is offline   Reply With Quote
Old 15-04-2013, 06:19 PM   #3
Too many projects.....
 
pugracer285's Avatar
 
Country: UK
Location: Warsash
Occupation: Sunseeker Sales @ Swanwick
Interests: Making things go fast....
Boat name: Top Gun
Boat make: Sunseeker Hawk 27
Engines: 2x Volvo Penta 5.7 V8s
Cruising area: South Coast

Join Date: Sep 2007
Location: Warsash
Posts: 220
Quote:
Originally Posted by Marinautic View Post
We rigged a Ringcat (extreme version) a few years ago, same lifter setup, but with a 250XS. we mounted the Standoff box lower, and the lifter on the top bolt hole. We used IMCO steering, but I seem to remember that SeaStar would have fitted ok.
Hi, thanks for the feedback. Don't suppose you can remember roughly where the gearbox centreline would have been in relation to the hull bottoms?

James
pugracer285 is offline   Reply With Quote
Old 15-04-2013, 06:23 PM   #4
Registered User
 
Marinautic's Avatar
 
Country: UK
Location: Poole
Occupation: Mercury/Mercruiser Sales

Join Date: Sep 2007
Location: Poole
Posts: 503
Sorry, I can't. I'll see if I can find some photo's of it.
Marinautic is offline   Reply With Quote
Old 16-04-2013, 09:34 PM   #5
Registered User
 
RossM's Avatar
 
Boat make: Phantom 23

Join Date: Mar 2006
Posts: 1,650
Send a message via MSN to RossM
Id say the motor looks too high but all my experience is with mono's!
RossM is offline   Reply With Quote
Old 16-04-2013, 10:57 PM   #6
The Doc
 
Captain Chaos's Avatar
 

Join Date: Mar 2004
Posts: 8,265
Quote:
Originally Posted by RossM View Post
but all my experience is with mono's!
Alright Reggie!
Captain Chaos is offline   Reply With Quote
Old 16-04-2013, 11:59 PM   #7
Registered User
 
Renegade's Avatar
 
Country: UK
Location: london
Occupation: Powerboat Skipper
Interests: Boats , bikes!
Boat name: Renegade
Boat make: GPV-RENEGADE
Engines: 150 HO etec
Cruising area: Thames, south coast, anywhere!

Join Date: Dec 2008
Location: london
Posts: 2,330
Quote:
Originally Posted by Captain Chaos View Post
Alright Reggie!
Ha!
__________________
Im re branding pepper spray as Arsehole Repellant.im going to make a fortune.
Renegade is offline   Reply With Quote
Old 17-04-2013, 10:50 PM   #8
Too many projects.....
 
pugracer285's Avatar
 
Country: UK
Location: Warsash
Occupation: Sunseeker Sales @ Swanwick
Interests: Making things go fast....
Boat name: Top Gun
Boat make: Sunseeker Hawk 27
Engines: 2x Volvo Penta 5.7 V8s
Cruising area: South Coast

Join Date: Sep 2007
Location: Warsash
Posts: 220
Ha, and there I was seeing all these replies and expecting many words of wisdom from you all!

Tonight I removed the engine and stand-off bracket, going to machine shop in the morning to take some material off the top so that the steering and trim hoses fit nicely. Powdercoaters on standby to then re-finish it.

Will then re-drill the transom so that the box sits 2 inches lower. That should put the gearbox centreline just over an inch below the bottom with lifter fully down.

Should hopefully give much better holeshot and handling in the rough stuff.
pugracer285 is offline   Reply With Quote
Old 17-04-2013, 11:15 PM   #9
Registered User
 
RossM's Avatar
 
Boat make: Phantom 23

Join Date: Mar 2006
Posts: 1,650
Send a message via MSN to RossM
Wisdom....from Chaos....unlikely lol

Have you checked that the jack cant be re-drilled insted of the boat?
RossM is offline   Reply With Quote
Old 17-04-2013, 11:39 PM   #10
Too many projects.....
 
pugracer285's Avatar
 
Country: UK
Location: Warsash
Occupation: Sunseeker Sales @ Swanwick
Interests: Making things go fast....
Boat name: Top Gun
Boat make: Sunseeker Hawk 27
Engines: 2x Volvo Penta 5.7 V8s
Cruising area: South Coast

Join Date: Sep 2007
Location: Warsash
Posts: 220
Yea the jack has 2 sets of holes as std but they'd only enable me to move it up rather than down. Not enough material there to drill it again so transom is the only option.

Whoever fitted the stand-off box used 6 bolts so if I come down 2 inches I can reuse 2 of the middle holes - so just 4 to drill. The awkward bit is that there is a massive stainless strengthening plate they've made up inside the aft locker butted up against the transom so I've got to get through a thick stainless plate which won't be easy.
pugracer285 is offline   Reply With Quote
Old 18-04-2013, 11:43 AM   #11
Captain slow
 
andymac's Avatar
 
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent

Join Date: Mar 2006
Location: surrey
Posts: 478
Seastar side mount

You could maybe use a side mount ram,which push/pulls through the tilt tube.which I have one for sale £100.i used it on my p20 when it had a lifter.
andymac is offline   Reply With Quote
Old 18-04-2013, 12:54 PM   #12
Too many projects.....
 
pugracer285's Avatar
 
Country: UK
Location: Warsash
Occupation: Sunseeker Sales @ Swanwick
Interests: Making things go fast....
Boat name: Top Gun
Boat make: Sunseeker Hawk 27
Engines: 2x Volvo Penta 5.7 V8s
Cruising area: South Coast

Join Date: Sep 2007
Location: Warsash
Posts: 220
Hi Andy,
Thanks I will bare this in mind once it's all back together depending on the clearances. Would like to use my existing ram if poss as its a complete new Seastar system.
James
pugracer285 is offline   Reply With Quote
Old 18-04-2013, 12:59 PM   #13
Registered User
 
Paul E's Avatar
 
Country: Guernsey
Occupation: Postie
Interests: Heavy Heavy Metal
Boat name: Slayer II, Slayer, Pen15
Boat make: Phantom 19G-R, Bernico F2 Extreme, Ring 15
Engines: Evinrude 115HO, Yam 90
Cruising area: Channel Islands

Join Date: Aug 2009
Posts: 1,457
Quote:
Originally Posted by pugracer285 View Post
Yea the jack has 2 sets of holes as std but they'd only enable me to move it up rather than down. Not enough material there to drill it again so transom is the only option.

Whoever fitted the stand-off box used 6 bolts so if I come down 2 inches I can reuse 2 of the middle holes - so just 4 to drill. The awkward bit is that there is a massive stainless strengthening plate they've made up inside the aft locker butted up against the transom so I've got to get through a thick stainless plate which won't be easy.
You won't get through stainless with a hand held drill.... You need to get that plate out and either punch them or do it very slowly with lots of cutting compound and a good bit in a pillar drill, starting small and working up. If you try with a handheld you'll end up knackering the drill bit, which in turn will heat and harden the stainless making an already difficult job virtually impossible.
__________________

Paul E is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT +1. The time now is 03:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×