Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
Why Would Transom Suddely Be Black? >

Why Would Transom Suddely Be Black?

Notices

Why Would Transom Suddely Be Black?

Old 04-11-2004, 01:21 PM
  #1  
Platinum Member
Platinum Member
Thread Starter
 
ApachePete's Avatar
 
Join Date: Aug 2001
Location: Sarasota,FL & Saugatuck, MI
Posts: 1,060
Likes: 0
Received 23 Likes on 6 Posts
Default Why Would Transom Suddely Be Black?

My HP500EFI's still run and sound fine, but the transom on the port side is suddenly covered with black soot. I have Silent Thunder.

Could a stuck injector cause this ?

Any other ideas?

Thanks!
ApachePete is offline  
Old 04-11-2004, 01:25 PM
  #2  
Registered
 
LapseofReason's Avatar
 
Join Date: Jan 2003
Location: Stafford Va.
Posts: 2,806
Likes: 0
Received 0 Likes on 0 Posts
Default

How old is the gas?
Was it running to cold, stuck open thermostat?
Did you put in a higher oct. gas?
LapseofReason is offline  
Old 04-11-2004, 01:32 PM
  #3  
Platinum Member
Platinum Member
Thread Starter
 
ApachePete's Avatar
 
Join Date: Aug 2001
Location: Sarasota,FL & Saugatuck, MI
Posts: 1,060
Likes: 0
Received 23 Likes on 6 Posts
Default

Gas is fresh, from a high volume gas station.

Good ol' 87 octane.

Was not running cold, but I did recently pick-up sand, causing the water temp to rise to 200 before I shut it down. Replaced the impeller, and temp and oil pressure are normal. Oil looks fine, and level is unchanged.
ApachePete is offline  
Old 04-11-2004, 01:58 PM
  #4  
Registered
 
LapseofReason's Avatar
 
Join Date: Jan 2003
Location: Stafford Va.
Posts: 2,806
Likes: 0
Received 0 Likes on 0 Posts
Default

Scan it to see if all the sensors are working and ok, it may think it's cold and has it running rich.

You could swap ECM's and see if the problem moves, But I would bet it's a bad sensor or something like that.
LapseofReason is offline  
Old 04-11-2004, 02:00 PM
  #5  
Platinum Member
Platinum Member
Thread Starter
 
ApachePete's Avatar
 
Join Date: Aug 2001
Location: Sarasota,FL & Saugatuck, MI
Posts: 1,060
Likes: 0
Received 23 Likes on 6 Posts
Default Lapse

Thanks.
ApachePete is offline  
Old 04-11-2004, 04:53 PM
  #6  
Registered
Platinum Member
 
Comanche3Six's Avatar
 
Join Date: Sep 2003
Posts: 9,242
Likes: 0
Received 3 Likes on 3 Posts
Default

Sounds like the choke isn't opening fully when the engine gets to temperature.
Comanche3Six is offline  
Old 04-11-2004, 04:55 PM
  #7  
Registered
 
LapseofReason's Avatar
 
Join Date: Jan 2003
Location: Stafford Va.
Posts: 2,806
Likes: 0
Received 0 Likes on 0 Posts
Default

500 EFI, no choke
LapseofReason is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MikaylaHunterCig
General Q & A
6
03-03-2006 12:20 PM
MikaylaHunterCig
General Boating Discussion
18
02-27-2006 03:45 PM
N2BOATN
General Q & A
3
07-14-2003 03:13 PM
Audiofn
General Q & A
5
09-30-2002 08:51 PM
B38
General Q & A
21
02-25-2002 07:15 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: Why Would Transom Suddely Be Black?


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.