Reply
 
Thread Tools Search this Thread
 
Old 23 May 2010, 22:17   #1
Member
 
Country: UK - England
Town: stockport
Length: 3m +
Join Date: Apr 2009
Posts: 49
bombard aerotec transom height

hi all, just come back from another cracking weekend in sunny wales.
still tryin to get the transom height right on my aerotec.
started at the beginning of the season by raising the transom with a 25mm block of wood, which was slightly better at reducing the amount of water splashing over the transom.
i am now upto 35mm and its a bit better again but not perfect.
my question is - " have any of you aerotec owners out there put more than a 35mm block on the transom to raise the height and eliminate the dreaded splash back".
gettin bored now takin transom plate off and putting it back on.
somebody out there must know the ideal height for best performance, please !!!!!!
outboard is a tohatsu 18hp 2 stroke.
never had any probs with my honwave/mariner 15hp combo.

oh, and one other question (sorry) does anyone know where i can get the bottom stainless steel stud on the transom that holds the launching wheels in place, we lost it at weekend and it was an absolute pain tryin to get it up the slipway without damaging the transom. good job there was four of us there this weekend. its the small stainless steel stud highlighted in pic 3
Attached Thumbnails
Click image for larger version

Name:	026.jpg
Views:	727
Size:	195.7 KB
ID:	51307   Click image for larger version

Name:	19032010002.jpg
Views:	676
Size:	54.3 KB
ID:	51308   Click image for larger version

Name:	BLAH.jpg
Views:	1498
Size:	55.6 KB
ID:	51310  
__________________
uny1965 is offline   Reply With Quote
Old 24 May 2010, 00:06   #2
Member
 
phillnjack's Avatar
 
Country: UK - England
Town: slough
Boat name: not named yet
Make: Orkney Dory 4 metre
Length: 4m +
Engine: outboard evinrude 60
Join Date: Sep 2009
Posts: 80
well on most boats the transom should be either 20 inch for long shaft engine or 15 inch for
short shaft.
But most people find it better to have the engine from 25 - 50mm higher.

Try 50mm , youl still be able to get plenty of water to the water pump and most bigger
outboards have holes in the engine brackets to raise up by about 75mm if needed.

I also need to raise my engine higher to hopefully stop splashback.

When you get it right please post to let us all know results




phill
__________________
phillnjack is offline   Reply With Quote
Old 24 May 2010, 11:25   #3
Member
 
Country: UK - England
Town: wells
Make: Ribcraft
Length: 5m +
Engine: 115
Join Date: Nov 2009
Posts: 105
height

my aerotec / mercury 15 will splash up a bit if not trimmed right, but never had to raise the motor though.
__________________
mark_j is offline   Reply With Quote
Old 24 May 2010, 14:50   #4
Member
 
Nick Hearne's Avatar
 
Country: UK - England
Town: Bucks
Boat name: Blue & Ding Dong
Make: Ribeye,SR4 & Bombard
Length: 6m +
Engine: 115,50 & 15Hp Yams
Join Date: Feb 2004
Posts: 3,252
try www.salterns.co.uk I lost one of the turn keys that hold the wheels on & they came up trumps with a replacement!

Don't know the hight but this is what I did to mine!
Works well for me
Attached Thumbnails
Click image for larger version

Name:	DSC02028 (Medium).JPG
Views:	845
Size:	70.6 KB
ID:	51333   Click image for larger version

Name:	DSC02031 (Medium).JPG
Views:	811
Size:	75.7 KB
ID:	51334  
__________________
Nick Hearne is offline   Reply With Quote
Old 24 May 2010, 18:00   #5
Member
 
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 919
What is the cavitation plate hight related to lowest point on the transom in Your bombard with the 35 mm extension? 2 stroke Tohatsus tends to have slighly longer rigs than some others.

On my aerotec 420 the cav plate is 50 mm too low, even if the rig is long as should bee on this boat. Just about to do a 50 mm fixed mod, will post picks later.

How is the original transom wheels mounted to the studs, have not seen any pictures how it is atached/done. I have another type of transom wheels, not so great design, considering to change to zodiac/bombard original.
__________________
fun on a boat is inversely proportional to size...sort of anyway
C-NUMB is offline   Reply With Quote
Old 25 May 2010, 06:53   #6
Member
 
Country: UK - England
Town: stockport
Length: 3m +
Join Date: Apr 2009
Posts: 49
bombard aerotec transom height

thanks everyone for the speedy responses.
i am gonna try the 50mm mod at weekend and i'll let you all know how it goes.
hi c-numb. thanks for your input, the original wheels that came attached to my aerotec connect to the transom with a small stainless steel stud at the bottom (the one i've lost), and at the top they have a turn-key type attachment like the one in the pic i've posted. thanks all.
Attached Thumbnails
Click image for larger version

Name:	b_DSC02536.jpg
Views:	372
Size:	14.9 KB
ID:	51346  
__________________
uny1965 is offline   Reply With Quote
Old 25 May 2010, 14:08   #7
Member
 
Country: UK - England
Town: Liverpool
Boat name: BENJ5
Make: Zodiac
Length: 5m +
Engine: Suzuki DF90hp
Join Date: Jul 2006
Posts: 124
Quote:
Originally Posted by uny1965 View Post
thanks everyone for the speedy responses.
i am gonna try the 50mm mod at weekend and i'll let you all know how it goes.
hi c-numb. thanks for your input, the original wheels that came attached to my aerotec connect to the transom with a small stainless steel stud at the bottom (the one i've lost), and at the top they have a turn-key type attachment like the one in the pic i've posted. thanks all.
Is it possible to buy those turn keys as I managed to get my brother a set of zodiac wheels, but they didn't include the "keys". Is ther a part number for them?
Cheers
Brian.
__________________
br1anuk is offline   Reply With Quote
Old 25 May 2010, 15:22   #8
Member
 
Nick Hearne's Avatar
 
Country: UK - England
Town: Bucks
Boat name: Blue & Ding Dong
Make: Ribeye,SR4 & Bombard
Length: 6m +
Engine: 115,50 & 15Hp Yams
Join Date: Feb 2004
Posts: 3,252
Quote:
Originally Posted by br1anuk View Post
Is it possible to buy those turn keys as I managed to get my brother a set of zodiac wheels, but they didn't include the "keys". Is ther a part number for them?
Cheers
Brian.
As I said earlier on the post I got them from Salterns!
"Try www.salterns.co.uk I lost one of the turn keys that hold the wheels on & they came up trumps with a replacement!"
__________________
Nick Hearne is offline   Reply With Quote
Old 26 May 2010, 21:08   #9
Member
 
Country: UK - England
Town: stockport
Length: 3m +
Join Date: Apr 2009
Posts: 49
bombard aerotec transom height

hi all, managed to source the transom studs from nationwide marine in warrington at a cost of £20 for a set of 2 studs (only sold in pairs) inc postage.
seems quite expensive for a couple of bits of stainless steel, but as you probably all know, anything to do with chandlery and.....well.

hi br1anuk, priced up the turn key, they're £10.34 each from ron hale marine, just go on their website and type in (Zodiac Turnkey For Launch Wheels)

sales staff at both nationwide marine and john bridger marine were really helpful, cant praise them enough
Attached Thumbnails
Click image for larger version

Name:	GetAttachment.jpg
Views:	343
Size:	41.3 KB
ID:	51399   Click image for larger version

Name:	b_DSC02536.jpg
Views:	311
Size:	14.9 KB
ID:	51400  
__________________
uny1965 is offline   Reply With Quote
Old 26 June 2010, 13:36   #10
Member
 
Country: UK - England
Town: stockport
Length: 3m +
Join Date: Apr 2009
Posts: 49
bombard aerotec transom height

hi all, just come back from wales (again). may as well emigrate i'm there that often.
I just had to go to try out the transom height mod. on the aerotec 380.

As you probably all know its been an ongoing saga for me, started with 25mm block, then 35mm and am now upto what most people on here have suggested at 50mm.

Think this is the best its been regarding the splashback but was wondering whether to try a little bit more height maybe 70-75mm (what do you all think) although the transom is starting to look like a dartboard, its got that many holes in it.

Just want to get it perfect before i screw, glue, fill and paint it.
I've been looking at other transom heights on zodiac and bombard boats and they all seem different.
Some are flat, some scooped out and others as in pic. are raised.

Heres a link to a short vid of our exploits last weekend with my brother at the helm, was quite scary when the wind got under the bow, but great fun. Click this link or copy and paste into the you tube search bar.



Was better the day before with slight chop as the boat was jumping out of the water.
We also got the ringo out for the kids and managed to do a spot of fishing.

Caught a couple of small cod and a few pollock but alas no mackerel (where are all the mackerel hiding).

All in all a cracking weekend again and just pray this weather continues into July and August.
Happy sibbing and see you all soon.
Attached Thumbnails
Click image for larger version

Name:	DSC_0167.jpg
Views:	627
Size:	78.0 KB
ID:	52263  
__________________
uny1965 is offline   Reply With Quote
Old 03 August 2015, 10:10   #11
Member
 
Country: Netherlands
Boat name: Commando C4
Make: Bombard
Length: 4m +
Engine: Tohatsu 30HP M25C3
Join Date: Jan 2015
Posts: 103
Quote:
Originally Posted by uny1965 View Post
hi all, managed to source the transom studs from nationwide marine in warrington at a cost of £20 for a set of 2 studs (only sold in pairs) inc postage.
seems quite expensive for a couple of bits of stainless steel, but as you probably all know, anything to do with chandlery and.....well.

hi br1anuk, priced up the turn key, they're £10.34 each from ron hale marine, just go on their website and type in (Zodiac Turnkey For Launch Wheels)

sales staff at both nationwide marine and john bridger marine were really helpful, cant praise them enough
Does anyone have the partnumber of the transom studs ? One fell of and is on the bottom of the Mediterranean.
__________________
piotr is offline   Reply With Quote
Old 03 August 2015, 17:30   #12
Member
 
Landlockedpirate's Avatar
 
Country: UK - England
Town: St Helens
Boat name: Wine Down
Make: Maxum
Length: 8m +
Engine: Inboard
Join Date: Apr 2012
Posts: 934
Take a deep breath......

Lock Plate Wheel Kit
__________________
Landlockedpirate is offline   Reply With Quote
Old 09 August 2015, 15:14   #13
Member
 
Country: UK - England
Town: Bideford
Make: Bombard Aerotec
Length: 4m +
Join Date: Aug 2014
Posts: 358
Just thought I'd chip in on this one, we've spent the last couple of weekends messing around on the taw/torridge estuary in our aerotec 420. I've been doing some tweaking, the 420 takes a long shaft outboard and I've got our 15 hp mariner 2 stroke packed up by 30mm on the transom and this has pretty much got rid of the spray issue.

The 15 HP gets 2 large adults, a kid, dog and luggage up on the plane easily. Don't think I'd bother with a bigger engine now unless we had a trailer. As it is, I can easily hand launch it and pull it up beaches on the transom wheels. It's a lovely boat, such a lot of fun and if this one ever bites the dust I'd replace it with another aerotec straight away

Simon
__________________
simonafloat is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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




All times are GMT. The time now is 19:05.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.