Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-04-2019, 08:53 AM   #1
Member
 
City: Sun City Center
Country: Us
Join Date: Jul 2019
Posts: 10
Lehman 80 hp fuel in bilge blue smoke

Half way on my repositioning cruise from Galveston to to Tampa the starboard engine started to billow blue smoke. It never smoked before. The engine oil was checked and was several inches high. The oil was changed regularly on route after several hours and we made it to Tampa. The engine continued to run good the entire way. So Iím confused.

Now the question. I need to solve the issue. I have read it could be injectors, fuel lines, fuel lift pump. Stuck extra fuel button. Given the quick onset looking for help pinpointing the logical place to start and not just throwing money at wrong solutions.

Thanks to all in advance
__________________
Advertisement

Hendrik1 is offline   Reply With Quote
Old 09-04-2019, 09:09 AM   #2
Guru
 
High Wire's Avatar
 
City: Cape May, NJ and Englewood, FL
Country: USA
Vessel Name: Irish Lady
Join Date: Dec 2007
Posts: 2,763
Engine make, model, year, hours, etc
Ok Lehman 80
__________________

__________________
Archie
1984 Monk 36 Hull #46
Currently in Cape May, NJ
High Wire is offline   Reply With Quote
Old 09-04-2019, 09:11 AM   #3
Guru
 
Ski in NC's Avatar
 
City: Wilmington, NC
Country: USA
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 5,270
Pull rocker cover and look at fuel lines under the cover. Seen return rail fracture on these and it puts fuel in the oil.

Do not run the engine with that diluted oil in the sump, good way to wipe bearings. Drain oil and put in good oil before troubleshooting runs.
Ski in NC is offline   Reply With Quote
Old 09-04-2019, 09:11 AM   #4
Member
 
City: Sun City Center
Country: Us
Join Date: Jul 2019
Posts: 10
It’s a 1982 Lehman 80 about 3000 hrs
Hendrik1 is offline   Reply With Quote
Old 09-04-2019, 09:17 AM   #5
Guru
 
Xsbank's Avatar
 
City: Pender Harbour, BC
Country: Canada
Vessel Name: Gwaii Haanas
Vessel Model: Vancouver Shipyards Custom Aluminum 52
Join Date: Sep 2013
Posts: 3,204
All of that plus are you changing the Sims oil at 50 hours?
__________________
Don't believe everything that you think.
What are we offended about today?
Xsbank is offline   Reply With Quote
Old 09-04-2019, 09:20 AM   #6
Member
 
City: Sun City Center
Country: Us
Join Date: Jul 2019
Posts: 10
I had everything serviced before I left engines including the sims oil and transmissions
Hendrik1 is offline   Reply With Quote
Old 09-04-2019, 10:49 AM   #7
Guru
 
kchace's Avatar
 
City: Brookline, NH
Country: USA
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 1,533
Quote:
Originally Posted by Hendrik1 View Post
I had everything serviced before I left engines including the sims oil and transmissions

Could it be that the oil was mistakenly overfilled?
kchace is offline   Reply With Quote
Old 09-04-2019, 10:53 AM   #8
Guru
 
City: Boston
Country: US
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 590
Quote:
Originally Posted by Ski in NC View Post
Pull rocker cover and look at fuel lines under the cover. Seen return rail fracture on these and it puts fuel in the oil
Agree. You can run w.o. rocker cover. Some oil might spill over on aft end. Nothing a paper towel can't handle. I would re-tighten all fittings. Note they are brass so don't torque them. Cracked line may not be obvious so use an LED flashlight and small mirror to check every inch.

Fuel pump is next candidate.They are inexpensive but a pain to replace. I would just replace it as a maintenance item.
SoWhat is offline   Reply With Quote
Old 09-04-2019, 12:52 PM   #9
Guru
 
City: Between Oregon and Alaska
Country: US
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 1,527
Most likely cause of fuel in the pan in larger quantities is failure of the injector pump seal.
__________________

Lepke is offline   Reply With Quote
Reply

Tags
blue smoke, fuel in bilge, lehman 80

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





All times are GMT -5. The time now is 03:44 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012