Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Storage / Winterization

Reply
 
Thread Tools Display Modes
  #1  
Old 12-29-2012, 08:31 AM
wats218's Avatar
wats218 wats218 is offline
TT Regular
 
Join Date: Aug 2007
Boat: Mastercraft, ProStar 190, 1996, Chevy 350
Location: South Jersey
Posts: 83
Send a message via AIM to wats218
Knock Sensor Removal Trouble

Winterized the boat about a month ago. Drained the exhaust manifolds and port side block plug, pulled the thermostat, and then ran 5 gallons of rv antifreeze out of a bucket through the entire engine. There was definitelt]y red antifreeze coming out of the exhaust.

I've been doing some reading on this site and it seems that everybody removes the drain plug on the starboard side of the block as well. Since I use the cheap rv antifreeze, I figured I'd do the same just in case the antifreeze was diluted too much. On my engine, this drain plug has the knock sensor on it. I got a 7/8" wrench and started turning the knock sensor to remove it. My problem is that the center hex head spins, but the outside housing and the threads in to the block do not. Is there a trick to removing the knock sensor? Did I damage it? The center hex does not spin smoothly, more in rough steps. Below is a link to skidim for the knock sensor that I have.


http://www.skidim.com/prodinfo.asp?number=R020027
Reply With Quote
  #2  
Old 12-29-2012, 09:11 AM
ProStar Slalom's Avatar
ProStar Slalom ProStar Slalom is offline
TT Enthusiast
 
Join Date: Dec 2006
Boat: 1984 S&S, 2001 19 Skier
Location: Southeast
Posts: 331
I've got the same sensor and just loosen with a wrench as you describe; never had just part of it turn, so it sounds like something isn't right. I'm sure a better wrench will jump in here shortly.
Reply With Quote
  #3  
Old 12-29-2012, 11:28 AM
mikeg205's Avatar
mikeg205 mikeg205 is online now
Moderator
 
Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 11,214
Send a message via Skype™ to mikeg205
sounds like time for a new knock sensor. appears outer housing loose from over torquing when installing over there years. It only has to be snug.
Attached Images
 
__________________
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....
Reply With Quote
  #4  
Old 12-29-2012, 11:36 AM
MLA MLA is offline
TT Enthusiast
 
Join Date: May 2012
Boat: pontoon
Location: Lake Wylie Area
Posts: 385
Loosen is up with a pair fo slip-joint plyers on the outer body. I would then suggest replacing it.
Reply With Quote
  #5  
Old 12-29-2012, 11:46 AM
jakethebt's Avatar
jakethebt jakethebt is offline
MC Fanatic
 
Join Date: Jul 2005
Boat: '96 Prostar 205 LT-1
Location: Dayton, OH
Posts: 583
What he said^^^^^^
__________________
1996 Prostar 205 LT-1
Reply With Quote
  #6  
Old 12-29-2012, 12:07 PM
EricB EricB is offline
TT Enthusiast
 
Join Date: Jul 2004
Boat: 77 S&S, 1983 S&& PS, and now a 98 Anniversary S&S LT1 PS
Location: St. Paul, MN & Balsam Lake, WI
Posts: 455
I 3rd what MLA suggests.
Reply With Quote
  #7  
Old 12-29-2012, 01:34 PM
wats218's Avatar
wats218 wats218 is offline
TT Regular
 
Join Date: Aug 2007
Boat: Mastercraft, ProStar 190, 1996, Chevy 350
Location: South Jersey
Posts: 83
Send a message via AIM to wats218
Thanks guys. I just wanted to make sure before I took pliers or vice grips to the outer housing.
Reply With Quote
  #8  
Old 12-29-2012, 03:55 PM
Jerseydave's Avatar
Jerseydave Jerseydave is offline
TT Hero
 
Join Date: Jul 2004
Boat: 2005 X-STAR & 1993 Prostar 190 Limited
Location: Jersey
Posts: 5,402
Quote:
Originally Posted by MLA View Post
Loosen is up with a pair fo slip-joint plyers on the outer body. I would then suggest replacing it.
ditto, the outer housing is peened over to the inner part. Small pipe wrench on the outside should take it out, then replace. I take mine out every year to winterize.
__________________
I was njskier on here.
Reply With Quote
  #9  
Old 12-29-2012, 09:11 PM
mikeg205's Avatar
mikeg205 mikeg205 is online now
Moderator
 
Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 11,214
Send a message via Skype™ to mikeg205
Quote:
Originally Posted by Jerseydave View Post
ditto, the outer housing is peened over to the inner part. Small pipe wrench on the outside should take it out, then replace. I take mine out every year to winterize.
Hey I learned a new word today... and the wives laugh our boating addictions..
__________________
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....
Reply With Quote
  #10  
Old 01-02-2013, 04:12 PM
94PS190's Avatar
94PS190 94PS190 is offline
TT Enthusiast
 
Join Date: Oct 2004
Boat: 94, prostar 190, 96 prostar 190..anyone wanna buy one
Location: Gravel lake, southwest MI
Posts: 219
I don't know what slip joit plyers are, but I would use dogs, or channel dogs to be more specific,
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


All times are GMT -4. The time now is 10:30 AM.