Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-30-2015, 06:59 PM   #21
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Or not enough air getting to the engine. Air filter clogged?
menzies is offline   Reply With Quote
Old 08-30-2015, 07:02 PM   #22
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
Quote:
Originally Posted by RT Firefly View Post
Mud dauber nest in the PCV valve...
Now that's out-of-the-box thinking! But no.
High Wire is offline   Reply With Quote
Old 08-30-2015, 07:03 PM   #23
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
Quote:
Originally Posted by menzies View Post
Or not enough air getting to the engine. Air filter clogged?
Air filters replaced twice. Airflow pathway clear. Not it.
High Wire is offline   Reply With Quote
Old 08-30-2015, 07:05 PM   #24
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Bad exhaust flapper?
menzies is offline   Reply With Quote
Old 08-30-2015, 07:10 PM   #25
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
Quote:
Originally Posted by menzies View Post
Gas in the diesel.
Fuel ok.
No exhaust flaps
High Wire is offline   Reply With Quote
Old 08-30-2015, 07:10 PM   #26
Guru
 
twistedtree's Avatar
 
City: Vermont
Join Date: Jan 2013
Posts: 10,093
Tell us, tell us, tell us.
__________________
MVTanglewood.com
twistedtree is offline   Reply With Quote
Old 08-30-2015, 07:10 PM   #27
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Blocked intercooler?
menzies is offline   Reply With Quote
Old 08-30-2015, 07:12 PM   #28
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Partially blocked sea strainer, lack of raw water, ...
menzies is offline   Reply With Quote
Old 08-30-2015, 07:13 PM   #29
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Filters too big, too much fuel?
menzies is offline   Reply With Quote
Old 08-30-2015, 07:14 PM   #30
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Valve clearance not right?
menzies is offline   Reply With Quote
Old 08-30-2015, 07:15 PM   #31
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Dammit man!
menzies is offline   Reply With Quote
Old 08-30-2015, 07:16 PM   #32
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Timing chain!!!!
menzies is offline   Reply With Quote
Old 08-30-2015, 07:16 PM   #33
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Join Date: Oct 2007
Posts: 16,566
Greetings,
Mr. HW. So, NOT the cockroach eh? Hmmm...Too much fuel is being injected and/or not enough air is getting to the cylinder(s) for complete combustion.
__________________
RTF
RT Firefly is offline   Reply With Quote
Old 08-30-2015, 07:17 PM   #34
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Join Date: Oct 2007
Posts: 16,566
Don't tell yet but another hint perhaps?
__________________
RTF
RT Firefly is offline   Reply With Quote
Old 08-30-2015, 07:21 PM   #35
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
Quote:
Originally Posted by twistedtree View Post
Tell us, tell us, tell us.
Alrighty then...
It wasn't the port engines fault at all!
The starboard transmission was slipping! The Starboard engine reved up to WOT but the prop didn't. The boss looked at the stbd shaft and said it ought to be turning alot faster for that RPM.
The Port engine was overloaded trying to pull the whole boat up to speed because the stbd was slacking off, hense the black smoke.
High Wire is offline   Reply With Quote
Old 08-30-2015, 07:23 PM   #36
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Well heck. At least I got my post count up!
menzies is offline   Reply With Quote
Old 08-30-2015, 07:25 PM   #37
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Though, why wouldn't the port engine "come up to cruise" RPMs as per your OP?

I would have thought it would in this case?
menzies is offline   Reply With Quote
Old 08-30-2015, 07:32 PM   #38
Guru
 
High Wire's Avatar
 
City: Cape May, NJ
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,966
The stbd engine was not pushing much at all. Had the owner tried to power the boat from the starboard engine alone, the fault would have been obvious. But he always pushed up both throttles together.
High Wire is offline   Reply With Quote
Old 08-30-2015, 07:41 PM   #39
Guru
 
twistedtree's Avatar
 
City: Vermont
Join Date: Jan 2013
Posts: 10,093
Wow, that's a good one.
__________________
MVTanglewood.com
twistedtree is offline   Reply With Quote
Old 08-30-2015, 07:47 PM   #40
Guru
 
menzies's Avatar
 
City: Jacksonville
Vessel Name: SONAS
Vessel Model: Grand Alaskan 53
Join Date: May 2014
Posts: 7,235
Quote:
Originally Posted by High Wire View Post
The stbd engine was not pushing much at all. Had the owner tried to power the boat from the starboard engine alone, the fault would have been obvious. But he always pushed up both throttles together.
But given that the port engine would have behaved normally and got to normal RPM for that throttle position, and the boat would have turned to starboard, hence indicating an weakness issue with the starboard engine? No?
menzies is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 01:01 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012