Thread Tools Search this Thread Display Modes
Old 10-04-2022, 02:28 PM   #1
Vessel Name: Commitment
Vessel Model: Palmer Sedan Cruiser
Join Date: Sep 2020
Posts: 10
Lehman 120 Exhaust Elbow

My exhaust elbow looks different from the solutions previously posted in other threads. Any suggestions on a replacement?

Photo is inverted in the link for some reason...
GrahamL is offline   Reply With Quote
Old 10-05-2022, 12:08 AM   #2
Senior Member
City: San Diego, CA
Vessel Name: Freedom
Vessel Model: Hatteras 48 LRC
Join Date: Jan 2019
Posts: 383
I have to catch an early flight but will post a picture of mine when I return this weekend. Yours does look different from what I recall.
Ken Connor
READY is offline   Reply With Quote
Old 10-05-2022, 12:22 AM   #3
BruceK's Avatar
City: Sydney
Vessel Name: Sojourn
Vessel Model: Integrity 386
Join Date: Oct 2011
Posts: 12,535
This page has pics and an advert for ADC (American Diesel Corp, effectively successors to Lehman.)
2005 Integrity 386 "Sojourn"
Sydney Australia
BruceK is offline   Reply With Quote
Old 10-05-2022, 12:46 AM   #4
SteveK's Avatar
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 3,284
Name:  Lehman-120-Stbd-Side.jpg
Views: 61
Size:  40.7 KB
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
SteveK is online now   Reply With Quote
Old 10-05-2022, 09:44 AM   #5
Marco Flamingo's Avatar
City: Dewatto
Vessel Name: CHiTON
Vessel Model: Tung Hwa Clipper 30
Join Date: Jan 2020
Posts: 870
I think there were originally several different exhaust "elbows" available. The downflow type with the integral raw water injection port (shown in #4 above) seems to be the most common. It has the oft noted disadvantages of possibly allowing water into the exhaust manifold and needing periodic replacement because of hot saltwater eating it up.

A second type of exhaust fitting is shown in my Lehman parts manual. It is a straight threaded fitting used for connecting metal exhaust pipe instead of the exhaust hose fitting above. That is the fitting I have and seems to be similar to OP's. Mine is female threaded and the original owner threaded 3" stainless pipe into the fitting and fabricated a custom high-rise exhaust pipe with the raw water injected well down stream. It is on the backside of the exhaust pipe in the picture, where the SS pipe is no longer discolored from heat (lagging removed). No possibility of raw water entering the engine by over-cranking (without starting) for several minutes.

As a bonus, the heat and salt that eats the insides of cast iron elbows doesn't happen. I recently pulled and examined my +40 year old exhaust fitting and it was fine on the inside. All the rust pitting was on the outside of the cast iron, so it got a new coat of high heat paint. Should be good for another 40 years.
Attached Thumbnails
20220913_150045.jpg   Exhaust riser.jpg  
Marco Flamingo
Marco Flamingo is offline   Reply With Quote

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 03:41 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012