Exhaust Elbow
Date: May 31, 1998
From: Dave and Carol Wright dgw1@aol.com
I just replaced the exhaust elbow located on the exhaust thru-hull under the starboard stern (Yanmar TQM20). The elbow was made of galvinized metal attached to the bronze thru-hull. It had begun leaking exhaust water and when I attempted to remove the exhaust hose, the fitting into the elbow broke completely off. It was rusted almost completely through. I replaced with a bronze 2" elbow and hose nipple from West Marine. The only problem is that the new hose nipple is slightly larger and now I can't get the exhaust hose on. Will keep you posted. You may want to warn the members.
Date: July 11, 1998
From: Dave and Carol Wright dgw1@aol.com
I have solved the exhaust elbow problem. The bronze hose barb from West Marine was a 2 inch "Full Flow" configuration which meant it needed a 2-1/4 inch hose (my exhaust hose is 2 inches).
I went to a plumbing supply contractor and purchased a galvenized 2 inch hose barb which connects to a 2 inch exhaust hose. This is the same as the original installation and works perfectly. It is still two dissimilar metals connected. However, the first one lasted 20 years.
West Marine does carry a 2 inch bronze hose barb for a 2 inch hose, but the length of the barb is much shorter. I did attempt to order one, but at the time they were out of stock and I wanted to get back to sailing.
Date: November 29, 1999
From: Bob Tressler Bobbolink@aol.com
Dave, toward the end of last season I thought the exhaust on Carousel sounded different, kind of a dry sound as if there was a hole. It could possibly be the carbon buildup you described. I have not looked at it closely yet. How difficult is it to replace?
Date: June 13, 2000
From: Doug Banks dbanks@ciris.net
Endeavour owners:
I have a 4-108 Perkins in my 40 foot Endeavour. Recently I noticed a couple of pin hole leaks in the side of the exhaust elbow. I took the exhaust elbow in and had it welded but the leaks reappeared. Does anyone have a idea how to repair these exhaust elbows. It appears in good shape other then the 2 pin hole leaks. I have been told by a local parts supplier that it is cost prohibitive to buy a new one. The suggestion that I received was to have one made up.....any information would be helpful.
Date: June 13, 2000
From: Mike Miller capnmike_s@yahoo.com
Hi Doug!
Exhaust elbows and risers were originally set up for most of the Endeavours by Mastry Engines in Tampa Florida....give them a call. I just had to replace my E-37's riser elbow, and found that the ones they used were custom made and are no longer available...however, suitable replacement parts are available through Jerry's Marine in Fort Lauderdale....they sell a small, universal setup that fits very nicely on the 4-108....you really should replace these things rather than repair them, as once they corrode through they are dangerous. Happy trails and Full Sails.
Date: June 13, 2000
From: Fritz Roney fritz@intrstar.net
After 4 repairs, all unsucessful, I bought a new one. The cost of the repairs was more than the new one. My repairs were done while cruising which may be a factor. Good luck.
Date: June 13, 2000
From: Ferdy Sant ferdysant@aol.com
Doug, I have a E-40 in San Diego. Three weeks ago I removed the exchangers on my Perkins 4108 to correct a heating problem. My exhaust was completely clogged with carbon making my engine heat up over 3000 rpm. Westerbake makes an exhaust exchanger that fits perfectly. I needed to extend one hose and the entire system went in like a factory job. The entire cost was under $160.00. I now have eliminated all back pressure to the engine and I have a cruising temp (2300 rpm) of 160 degrees. This is down from 180 degrees. Best of luck with the engine.
By the way have you had any problems with the anchor chain jamming in the PVC tube and kicking out the breaker on the windless. I have found that this boat needs two persons to retrieve the anchor. One on the controls, the other in the v-berth to feed the chain. If you have experienced this problem and fixed it please let me know what you did.
"Pipe Dream"
Date: June 13, 2000
From: Thomas Heckler Ketch4two@aol.com
I have an E43 that I have to replace the exhaust elbow (cracked) in a Perkins 4-154 - http://www.foleyengines.com/ had a large selection of products for Perkins engines - not too badly priced.
Date: June 13, 2000
From: Kevin Coon kkcoon@worldnet.att.net
I have replaced the elbow on my Yanmar, only about $60.00. Call your Perkinsparts supplier and see...the guy might have just been lazy. If it is horriblyexpensive , I'll bet you could make one out of galvanized pipe but I'd probably spring for the origional part- Don't know what a surveyor might say. Good Luck!
Date: June 13, 2000
From: Josh Wallach jwallach@flash.net
Don't laugh - use "JB Weld" on the holes! IT WILL WORK!
Date: June 14, 2000
From: Ed Mahoney ed.mahoney@us.abb.com
Doug,
I also have an E-42 with the 4-108. About three years ago, I replaced the exhaust elbow due to leaking. I found the part through a company in Michigan that is now out of business. I believe the part was less than $200.00.
I have several years in the Quality field, much of it to do with castings. What I can offer is that a casting, like the elbow, can be very sturdy yet Porous, much like sandstone. It is the pores that leak, and the problem comes when the water under pressure begins to seep through the pores and enlarge them.
Welding does not always work, because the heating of the welding process causes a new set of pores to open up, if water is trapped in the pores, this is exaggerated.
You may want to talk to a local casting house, and see if they have a suggestion. Perkins was sold a few years ago, and parts for the 4-108 are a little scarce and expensive, but I felt the price I was quoted to be worth it. Just a few thoughts.
Date: June 15, 2000
From: Sam Woolsey SamWoolsey@aol.com
Doug,
If by exhaust elbow you mean the part just aft of the Heat Exchanger and combines the exhaust gas and the cooling water, connects to a rubber ehhaust hose then goes to the muffler and finally out the exhaust. Perhaps I can help.
When I bought my E-40, this gizmo was completely gone. One tap with a hammer and it continued its disintegration. I took it to a marine supplier in Kemah, Tx, and I received the same comment you did, "The cost of these things is prohibitive". Then a bright employee, looked at my old part and said that they had one of those. If my memory serves me, the part was from a Universal Diesel and cost about $35.00. It wasn't from Perkins at all.
Of course it took some work to remove and replace a pipe nipple that attaches the Universal part to the piece that attaches to the heat exchanger. This was done about 2 years ago and I have had no problem since. Hope this helps.
Date: June 17, 2000
From: Phil Johnson flipper1@erols.com
I have consumed 2 (1 aluminium = 1year, 1 cast iron = 7+ years) in the last 10 years. As a marine engineer this part recieves the worst of enviroments, particularly in salt water. Barr inc. part #20-0094 should meet your need. You will also need to purchase 3 pipe sections to addapted to the 4-108 in an E-40.(salt water = brass 90 deg. elbow + 3/4"x4" nipple, steel 1-1/2"xblind nipple connects flange to riser, steel 1-1/2"x 6" nipple saw threads off one end to slide hose more easily.)
The cast iron part usualy has a 3 year warranty. My castiron riser is still solid at 7 + years, the origional lasted 10 years. I did a voyage repair using marine tex which lasted 6 months. You should replace it with a new unit a soon as practicable.
Date: June 23, 2000
From: John Regina John J1314@aol.com
Hi there,
I had the same problem with my 4-108 on an E40. They are correct a repair will not last. You will have to get a new one. Foley Marine sold me one for about $180.00 a couple of years ago. However, the hardest problem may be removing it from the heat exchanger it would be best to take it to a machine shop for that job. Do not use a hammer on it or you may crack the heat exchanger. Good Luck.
Date: September 8, 2000
From: Carl Hibbard Chgypsy@aol.com
Doug,
I presume that by this time you will have this repaired, but...
The exhaust elbow is not that expensive. The exhaust manifold would be in the $2000 area, probably higher. You can find the elbows but a good source for Perkins parts is: Diesel Parts Sales Houston, Tx 800.683.4439 ask for Leo Caesar IV (they all have the same name-family operation).
Just got back from the summer trip...good luck
