Outboard - Drain plug will not unscrew - SailNet Community
 
LinkBack Thread Tools
post #1 of 8 Old 05-27-2008 Thread Starter
Senior Member
 
Finallybuyingaboat's Avatar
 
Join Date: Aug 2007
Posts: 157
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
Outboard - Drain plug will not unscrew

Okay, I almost have my barge ready to have a mast attached. I got the boat into the water today and it didn't sink! I have done major work on this mess over the past 7 months and still did not know if it would sink or float until today, so I am extremely relieved! I'll post some pictures tonight or tomorrow night.

Anyway, I need to replace the gear lube on the lower housing of my outboard, but I cannot get either the vent plug or the drain plug to turn at all. I do not want to strip the srcew heads, so once again I have come here for some ideas...it is an 8 HP evinrude yachtwin long shaft motor. So far, I have just been trying to turn it with a large flat head screwdriver, but it accomplishes nothing.

I bought the motor second hand, so have no idea when the lube/gearcase oil was last changed, so I figure I should do it just to be safe. It should be changed every year anyway.
Finallybuyingaboat is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 8 Old 05-27-2008
Member
 
lbdavis's Avatar
 
Join Date: Apr 2007
Location: Portland, ME
Posts: 560
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 9
 
I've had a tough time with lower unit screws in the past and I always got them with the largest flat head screwdriver I could find and a second person on the opposite side of the lower unit. This way I could apply my full force down (or in this case, sideways ) onto the screw head without trying to break the engine free off the motor mount.

Be sure your helper is safe from impalement from said screwdriver!
lbdavis is offline  
Quote Quick Reply Share with Facebook
post #3 of 8 Old 05-27-2008
Swansea, MA
 
pfatyol's Avatar
 
Join Date: Dec 2003
Location: Massachusetts
Posts: 98
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Do you have an impact driver?

I have had luck with PB blaster then using the impact driver.

Patrick

S/V "Fat-Kat"
C&C 32, Hull #237
Mt. Hope Bay
pfatyol is offline  
Quote Quick Reply Share with Facebook
post #4 of 8 Old 05-27-2008
Seņor Member
 
TrueBlue's Avatar
 
Join Date: Oct 2004
Location: Narragansett Bay
Posts: 4,853
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 13
     
This may sound archaic, but have you ever tried using a screwdriver bit in a bit & brace? These tools may have been ignored during the past decades, but I still find uses for them every now and then.

You can apply more downward pressure because of the ball-bearing palm knob on axis with the screw, reducing the possibility of stripping a screwhead while maintaining increased torque.


True Blue . . .
sold the Nauticat
TrueBlue is offline  
Quote Quick Reply Share with Facebook
post #5 of 8 Old 05-27-2008
Seņor Member
 
TrueBlue's Avatar
 
Join Date: Oct 2004
Location: Narragansett Bay
Posts: 4,853
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 13
     
I would caution you against using an impact driver against the thin aluminum casing of your outboard's lower unit. These tools require a heavy blow in order to work effectively - with risk of cracking the casting.

True Blue . . .
sold the Nauticat
TrueBlue is offline  
Quote Quick Reply Share with Facebook
post #6 of 8 Old 05-27-2008
Senior Member
 
timebandit's Avatar
 
Join Date: Sep 2002
Posts: 928
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
 
Do yourself a favor and use a properly sized and dressed screwdriver.

You might try turning it in a tightening motion first.

Screwdrivers of the proper size usually have a square shank so you can use a Cresent wrench on them. Try to keep the wrench as close to the bit as you can.

I also advise against the impact screwdriver.

If you ruin the slot and mangle the plug beyoud all repair it is time to use the Small hammer and punch.

Rick
timebandit is offline  
Quote Quick Reply Share with Facebook
post #7 of 8 Old 05-27-2008 Thread Starter
Senior Member
 
Finallybuyingaboat's Avatar
 
Join Date: Aug 2007
Posts: 157
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
I'll go fo rthe biggest screwdriver I can fit in , and if that does not work I will try and find an old manual drill as trueblue put forth.
Finallybuyingaboat is offline  
Quote Quick Reply Share with Facebook
post #8 of 8 Old 05-27-2008
'72 Pearson 36
 
SVDistantStar's Avatar
 
Join Date: Aug 2006
Location: Charleston SC
Posts: 497
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 10
 
Send a message via AIM to SVDistantStar
I do small outboard repair and when i have plugs that wont move ive got a special screw driver. Its a large flathead thats been ground down a bit to not be as pointed. It has a square shaft so i can get a wrench on it. I lay the motor on the ground with the plugs up, spray them with either PB Blaster or Seafoam spray. I then push as hard as i can on the screw driver wile turning the wrench. It works about 99.9% of the time. If it doesnt work, ill pull the lower unit apart and soak the whole thing in a bucket of WD-40.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1972 Pearson 36 S.V. Distant Star
SVDistantStar is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Parts for sink drain overholtzer S2 1 09-07-2007 04:07 PM
Source for Oil drain plug bestfriend Gear & Maintenance 6 01-25-2007 06:40 PM
Universal m35 leak at drain plug sailingdeacon Gear & Maintenance 1 01-07-2005 11:21 AM
Bilge Drain Plug in a Sailboat AJS Gear & Maintenance 3 10-23-2002 08:18 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome