Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-04-2018, 03:14 PM   #1
Member
 
ksandin's Avatar
 
City: Oceanside CA
Vessel Name: Ambitions at Bay
Vessel Model: Roughwater 29
Join Date: Jan 2016
Posts: 10
Lehman 80 exhaust maniford issue

So I always planned that the exhaust elbow of my Lehman would rust out so I have a spare. Well it turns out today while on a short cruise it was the exhaust manifold just behind the elbow that blew a hole and took 3 months off my life while in rollers at the mouth of the harbor.

Is a repair likely or replacement the only option? Anyone have a spare for sale?

Ford Lehman 2712E
Attached Thumbnails
Hole.jpg   Manifold.jpg  
ksandin is offline   Reply With Quote
Old 05-05-2018, 07:51 AM   #2
Guru
 
City: Full Time Cruising East Coast
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 1,014
Doesn’t look good. You could try JB Weld as a temporary fix (or permanent if it works)
__________________
-------------------------
Terry
Meridian
KK-42097
meridian is offline   Reply With Quote
Old 05-05-2018, 09:22 AM   #3
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,775
JB Weld will melt at the temps of the exhaust manifold. Replace it. American Diesel and Bomac Marine are two good sources of Lehman parts.

David
DavidM is online now   Reply With Quote
Old 05-05-2018, 09:42 AM   #4
Technical Guru
 
Ski in NC's Avatar
 
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
Looks like casting was thin there. Could also have been thinned by water backing up from mixer. When you get it off, look for corrosion signs internally.
Ski in NC is offline   Reply With Quote
Old 05-05-2018, 09:56 AM   #5
Veteran Member
 
City: Ft.Lauderdale
Vessel Name: Sandpiper
Vessel Model: 1976 Marine Trader D/C
Join Date: Mar 2015
Posts: 40
Quite likely you will have to replace the manifold with a Bowman replacement. They are made in the UK. and are available via Bomac. They combine several componants of the cooling system, IE: heat exchanger, expansion tank and the function of both the intake and exhaust manifold. You also have to change the engine coolant pump for it all to line up.
Attached Thumbnails
DSC_0006.jpg  
Trawler Sandpiper is offline   Reply With Quote
Old 05-05-2018, 10:39 AM   #6
Member
 
ksandin's Avatar
 
City: Oceanside CA
Vessel Name: Ambitions at Bay
Vessel Model: Roughwater 29
Join Date: Jan 2016
Posts: 10
Quote:
Originally Posted by Ski in NC View Post
Looks like casting was thin there. Could also have been thinned by water backing up from mixer. When you get it off, look for corrosion signs internally.
That's what I was thinking too. It was dry and didn't spit out any water for the 10 minutes it took me to get back to the harbor, but that doesn't mean water hadn't been backed up there before. I was really expecting it to be from the elbow, and quite surprised to find the hole where it was. I will pull it next trip down and see how corroded things look.

Thank you all for the suggestions.

Keith
ksandin is offline   Reply With Quote
Old 05-05-2018, 10:43 AM   #7
Guru
 
City: gulf coast
Join Date: Jun 2014
Posts: 3,440
A temporary fix is some exhaust patch from an auto store with some hose clamps
bayview 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 09:08 PM.


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