Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-16-2008, 06:25 PM   #1
Ensign
 
Join Date: May 2008
Location: Newport News, VA
Posts: 1
Default Two questions relating to lower drive unit? Advice needed

Hello everyone, i am new to the site and new to owning a boat (not new to boating) I recently purchased a 1999 1800SR with the 4.3L V6 I/O.

Two questions:

The lower fin on the outside drive unit (the fin below the prop) is bent very evenly and smoothly to the left when looking at it from the rear. Is this something i can fix myself, as in with a block of wood and a hammer? or should i take it in somewhere? and what roughly would that cost to fix?

Second, i just purchased Doel Fins, (trim fins) because our old boat had them and it made a world of difference, only i dont quite remember those. Apparently you have to drill holes into the cavitation plate for these fins?...is that something i should be doing on my own?...

I am mechanically proficient, as in i know my way around cars, trucks, bikes, and i have a lot of tools at my disposal...just never worked on boats all that much before, and i always have a problem feeling good about drilling into perfectly good metal, or bending it back...

please, any help would be great

thanks in advance
jake
__________________

jakew129 is offline   Reply With Quote
Old 05-16-2008, 08:30 PM   #2
Admiral

 
seapuppy's Avatar
 
Join Date: Nov 2005
Location: Everett Wa
Posts: 4,681
Default

first off...welcome to the zoo....hope you stick around and congrats on the new boat...

now.....the fin should be heated and then carefully bent into proper geometry....to do that take the lower unit off..I'm assuming you have an A1 drive from mercruiser....
now ..there are 6 bolts that hold the lower drive to the upper drive unit...at this time it would also be a good time to replace the impeller....

now for the dolfin.....yes you can drill the holes yourself...but it puts alot of pressure on the cavitation plate that could cause cracking.....I would put trim tabs on it before the dolfin......
however....if you decide the dolfin is the way you want to go..then after you mark and drill the bolt holes...prime and paint with alodine primer and paint black to match......any exposed al. and salt water will cause serious oxidation and corrosion......
just my opinion.....
let us know how it goes......


SP
__________________
Don't compare your life to others. You have no idea what their journey is all about.
------------------------
SSN683 Association member
Par Excellence
------------------------------
2008 Bayliner 340 - "Wild Whim"
--------------------------------------
I live in my own little world....but it's okay-they know me here!!!

Avid practitioner of the martial art: KLIK-PAO.
Tap-Rack-Bang

Anyone that sez "Size doesn't matter" has never owned a boat!
seapuppy is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Number for US Marine divechuck04 Maxum Maintenance 2 11-13-2009 06:42 AM
Petrol/gas or diesel gentlemanglobetrotter Engines 2 04-09-2009 12:22 PM
Water in bilge after running on hose optokid Maxum Owners General Discussions 5 07-04-2008 05:48 PM
Engine hatch lift spring hybris1 Maxum Owners General Discussions 1 03-19-2008 09:11 PM
Leaking fuel tank greenkev Maxum Owners General Discussions 2 08-01-2006 05:44 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 02:28 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.