Go Back   TeamTalk > General MasterCraft Topics > General Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 12-21-2013, 08:55 AM
Trent 197's Avatar
Trent 197 Trent 197 is offline
TT Enthusiast
 
Join Date: Oct 2007
Boat: 2011 X2
Location: Southeast
Posts: 221
Question about engine drain plug

Guys,

When I had my 197, I drained the block all the time in the winter. It had just had a plug fitting on each side of the block, that's it. When I went to drain the block on my X2 for the first time, I noticed that it had a wire going to the fitting. I didn't drain it because I didn't know if there was anything special I needed to know.

See photo below. Is this the engine thermocouple? If so, anything I need to know before I remove and drain the block? Is it as simple as unthreading and removing the t/c (if that's what it is) and letting it drain thru the threaded reducer bushing (or for better flow, remove bushign too)?

Thanks!

ps. if this is the t/c, where was the engine temp measured in my 197?

Name:  20131220_150044.jpg
Views: 217
Size:  49.3 KB
Reply With Quote
  #2  
Old 12-21-2013, 08:58 AM
jgraham37128 jgraham37128 is offline
MC Fanatic
 
Join Date: May 2012
Boat: 2010 Mastercraft X2
Location: Center-Hill Lake / Southeast
Posts: 615
that is the knock sensor but you need to drain it too. Just be careful when loosening and tightening it back up.

There are many post on this.
Reply With Quote
  #3  
Old 12-21-2013, 09:02 AM
Trent 197's Avatar
Trent 197 Trent 197 is offline
TT Enthusiast
 
Join Date: Oct 2007
Boat: 2011 X2
Location: Southeast
Posts: 221
Oh, OK, thanks!....let me search for them.
Reply With Quote
  #4  
Old 12-21-2013, 09:14 AM
Trent 197's Avatar
Trent 197 Trent 197 is offline
TT Enthusiast
 
Join Date: Oct 2007
Boat: 2011 X2
Location: Southeast
Posts: 221
I couldn't really find any post explaining how to "be careful" in removing the knock sensor. Is it that fragile? I'm assuming you just remove the top nut, pull the sensor and then drain the engine.

Also, the raw water pump outlet is hard piped. How to drain?

Thanks!
Reply With Quote
  #5  
Old 12-21-2013, 09:59 AM
BG1772's Avatar
BG1772 BG1772 is offline
TT Enthusiast
 
Join Date: May 2005
Boat: X-Star, 2001 5.7L LTR
Location: Columbus, Ohio
Posts: 196
I've destroyed several knock sensors when removing them to winterize. The knock on your boat looks like a much better design in that it has good spot to put the wrench. As for being careful, you don't want to over tighten when reinstalling. I think you only want to tighten to about 14 foot pounds.

Sent from my Galaxy Nexus using Tapatalk
__________________
2001 X-Star 5.7l LTR
Reply With Quote
  #6  
Old 12-21-2013, 11:10 AM
mikeg205's Avatar
mikeg205 mikeg205 is offline
Moderator
 
Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 9,351
Send a message via Skype™ to mikeg205
A little anti-seize will give your block and knock sensor a long life... BG1772 is right very little torque... no pressure....
__________________
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....
Reply With Quote
  #7  
Old 12-21-2013, 02:09 PM
ricford's Avatar
ricford ricford is offline
TT Enthusiast
 
Join Date: Feb 2011
Boat: 1996 Prostar190
Location: Muskoka, Canada
Posts: 495
Unplug the wiring harness and remove completely from the block.
Reply With Quote
  #8  
Old 12-21-2013, 07:41 PM
dsword dsword is offline
TT Regular
 
Join Date: Sep 2008
Posts: 65
I just did this on our 2006 Xstar. Remove the nylock nut and slide the knock sensor off of the block plug. Use a one-inch deep socket to remove the plug. This will make sure your knock sensor is not damaged.

David Sword
Reply With Quote
  #9  
Old 12-21-2013, 09:08 PM
JimN's Avatar
JimN JimN is offline
MC Master Poster
 
Join Date: Jul 2004
Posts: 11,349
Quote:
Originally Posted by Trent 197 View Post
I couldn't really find any post explaining how to "be careful" in removing the knock sensor. Is it that fragile? I'm assuming you just remove the top nut, pull the sensor and then drain the engine.

Also, the raw water pump outlet is hard piped. How to drain?

Thanks!
Finger tight, then another 3/4 turn is all it needs. There's no top nut, just a plastic plug on a blue wire on the older ones.
Reply With Quote
  #10  
Old 12-21-2013, 09:43 PM
CantRepeat's Avatar
CantRepeat CantRepeat is online now
 
Join Date: Jul 2008
Boat: 06 X30
Location: Roll Tide!!
Posts: 7,596
Yo big money grip!!!

Smash that stuff wit a hammer!
__________________
Tim
Gone, surfing.
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 08:10 AM.