Go Back  Offshoreonly.com > Technical > General Q & A
Blew a fitting off stbd exhaust manifold 496 >

Blew a fitting off stbd exhaust manifold 496

Notices

Blew a fitting off stbd exhaust manifold 496

Thread Tools
 
Old 08-02-2008, 02:01 PM
  #1  
Registered
Thread Starter
 
bowtye8's Avatar
 
Join Date: Sep 2005
Location: Vero Beach, FL
Posts: 588
Received 1 Like on 1 Post
Default Blew a fitting off stbd exhaust manifold 496

Was going along when I saw water pressure drop then alarm. Shut down. Some water in the bildge.

A fitting on the stbrd manifold. If you follw the seapump supply hose it goes to a t fitting continues on to the powersteering cooler. Well off this tee a hose goes to a fitting on the bottom of the manifold. There no clamp seems like hard plasitc. This appears to pop back in but will slip right off with any type of pressure.
I did not attemp to remove the fitting. Unsure if I will be able to spin it around fully to unscrew it.
I'll atemp tommorow. Burned out and riding back on one engine. Long day.

Trying to see what part it is. I looked here but cant see it clear in the pics.
http://www.marinepartsplus.com/catal...4003/11746-190
bowtye8 is offline  
Old 08-02-2008, 02:06 PM
  #2  
Charter Member#157
Charter Member
 
MnFastBoat's Avatar
 
Join Date: Oct 2000
Location: Minneapolis, Mn, Usa
Posts: 1,859
Likes: 0
Received 3 Likes on 3 Posts
Default

# 23 or 34 maybe??

http://www.perfprotech.com/store/ass....aspx#assembly
__________________
This Cat is trying to keep up with the Big Dogs
MnFastBoat is offline  
Old 08-02-2008, 03:21 PM
  #3  
Registered
Thread Starter
 
bowtye8's Avatar
 
Join Date: Sep 2005
Location: Vero Beach, FL
Posts: 588
Received 1 Like on 1 Post
Default

Thanks,
Way better pic. It does look very close to 23.
That fitting does not screw on. It slips on. I cant see how it broke.

did a better search for my serial number. Looks like number 3 for Stbd manifold.
http://www.perfprotech.com/store/ass...11746-160.aspx
bowtye8 is offline  
Old 08-02-2008, 04:32 PM
  #4  
Charter Member#157
Charter Member
 
MnFastBoat's Avatar
 
Join Date: Oct 2000
Location: Minneapolis, Mn, Usa
Posts: 1,859
Likes: 0
Received 3 Likes on 3 Posts
Default

Hope that helps, I do not have a 496 but thought that was what you were referring to.
I just punched in for any 496 because I did not know your ser# range


btw, I have never ordered from that site. Just have used thier info. Maybe one day I will.
Another better micrfiche site is Bams, which is Mercruiserparts.
I just did not have their website here at work



Originally Posted by bowtye8
Thanks,
Way better pic. It does look very close to 23.
That fitting does not screw on. It slips on. I cant see how it broke.

did a better search for my serial number. Looks like number 3 for Stbd manifold.
http://www.perfprotech.com/store/ass...11746-160.aspx
__________________
This Cat is trying to keep up with the Big Dogs
MnFastBoat is offline  
Old 08-04-2008, 10:51 AM
  #5  
Registered
 
Join Date: Jan 2004
Location: San Diego, California
Posts: 2,777
Likes: 0
Received 6 Likes on 6 Posts
Wink

Sounds like you are describing the check valve cup on the exhaust manifold raw water inlet fitting. These are plastic and have been known to get a split in the plastic and pop off. If thats the problem, get a new one and snap in on and off you go.

Best Regards,
Ray @ Raylar
Raylar is offline  
Old 08-04-2008, 01:12 PM
  #6  
Registered
Thread Starter
 
bowtye8's Avatar
 
Join Date: Sep 2005
Location: Vero Beach, FL
Posts: 588
Received 1 Like on 1 Post
Default

Originally Posted by Raylar
Sounds like you are describing the check valve cup on the exhaust manifold raw water inlet fitting. These are plastic and have been known to get a split in the plastic and pop off. If thats the problem, get a new one and snap in on and off you go.

Best Regards,
Ray @ Raylar
Yes Ray that was it. Replaced . Have not sea trialed yet. I have to verify my h20 pressure. I just purchased diacom but my newer laptop screen just took a dump on friday.

My system view shows two different pressures. One was always double the other. One of the sensors took a dump so I have a new one on the way.(thanks to a very nice OSO member) I will post what both readings display after the new sensor install.
bowtye8 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bowtye8
Baja
7
08-06-2008 05:43 PM
scottie150
Wanted
5
06-25-2008 08:45 AM
87velocity
Wanted
2
04-19-2008 02:00 PM
Jassman
Active Thunder
20
10-01-2007 08:45 AM
Harper220
General Q & A
1
08-02-2004 06:13 PM

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 On
Pingbacks are On
Refbacks are On



Quick Reply: Blew a fitting off stbd exhaust manifold 496


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.