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08-24-2018, 07:45 PM
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#1
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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Perkins Diesel has a very loud banging sound
So bummed! Our worst fears may have just happened. There were metals detected in the fluid survey, we hoped for the best and have had one season of pure joy with her.
Today when we started the port engine a very loud banging, sounded like a metal fan hitting something over and over.
Looking at videos hoping we can fix her ourselves.
Sour puss. Darn it! Sad sad day
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08-24-2018, 08:15 PM
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#2
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Guru
City: Between Oregon and Alaska
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 3,023
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Quote:
Originally Posted by ChesapeakeGem
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You can if you're a mechanic.
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08-24-2018, 08:23 PM
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#3
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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Quote:
Originally Posted by Lepke
You can if you're a mechanic.
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We have done extensive mechanical work on our gas engines
Diesel is new for us.
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08-24-2018, 08:47 PM
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#4
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Senior Member
City: patterson
Vessel Model: CHB 45 Pilot House
Join Date: Mar 2012
Posts: 196
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Not likely that you can fix from what you describe.
Make sure key is off, better yet, disconnect the battery and slowly turn the engine over with a wrench. Listen for the crunch sound and stop immediately.
That being said, now remove the head, this is a job for a mechanic. period.
Been there, done that.
CCC
__________________
Charles C Culotta, Jr
Patterson, La.
SUPPORT OUR TROOPS
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08-24-2018, 09:24 PM
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#5
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Guru
City: Between Oregon and Alaska
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 3,023
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Quote:
Originally Posted by ChesapeakeGem
We have done extensive mechanical work on our gas engines
Diesel is new for us.
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Accept for the fuel system, it's the same as gas only bigger and heaver. Sounds like a rod. Not insurmountable. Buy a service manual, maybe on ebay.
Another option is a short block.
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08-24-2018, 09:36 PM
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#6
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Guru
City: Wilmington, NC
Vessel Name: DreamQuest
Vessel Model: Prairie 36
Join Date: Jan 2016
Posts: 550
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Trans Atlantic Diesel in VA specialize in Perkins. Marcus, the owner, has always been there for me with good advice and parts I have needed for my older 6.354 engines. Give them a call.
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08-25-2018, 05:50 AM
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#7
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Guru
City: Kilmarnock VA
Vessel Name: Wandering Star
Vessel Model: PSN40
Join Date: Apr 2016
Posts: 1,395
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There is a complete 6-354 for sale in the classifieds here on this forum. Hopefully you won't need another engine but just an FYI option.
__________________
-Shawn-
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08-25-2018, 06:25 AM
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#8
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Senior Member
City: Buffalo
Vessel Name: Almost Perfect
Vessel Model: Kadey-Krogen 48
Join Date: Dec 2015
Posts: 232
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Talk to your local Massey-Ferguson farm tractor dealer. Reman. Watch the video. It talks about reman engines. Fortunately all parts are still available for Perkins 6.354 engines.
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08-25-2018, 07:09 AM
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#9
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Post a video of the noise.
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08-25-2018, 07:41 AM
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#10
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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Quote:
Originally Posted by charles
Not likely that you can fix from what you describe.
Make sure key is off, better yet, disconnect the battery and slowly turn the engine over with a wrench. Listen for the crunch sound and stop immediately.
That being said, now remove the head, this is a job for a mechanic. period.
Been there, done that.
CCC
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The biggest challenge is working on it while in the boat.
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08-25-2018, 07:48 AM
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#11
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Guru
City: Full Time Cruising East Coast
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 1,014
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It could be a failed damper. Spring pops out and is stuck between the damper plate and block. Relative easy fix if you can slide the transmission back six inches.
__________________
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Terry
Meridian
KK-42097
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08-25-2018, 07:50 AM
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#12
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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Quote:
Originally Posted by meridian
It could be a failed damper. Spring pops out and is stuck between the damper plate and block. Relative easy fix if you can slide the transmission back six inches.
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Thank you
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08-25-2018, 09:17 AM
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#13
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Would not expect a rod/piston/bearing failure if engine was ok when shut down, then a bad noise on next start. I too would be looking at things like damper plate, etc.
Might check valve gear under the rocker cover. Could be a sticky valve.
Audio of the noise can be very helpful.
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08-25-2018, 09:20 AM
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#14
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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I’ll send the audio
Thank you so much !
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08-25-2018, 10:25 AM
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#15
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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We shut it down immediately after hearing it. Possibly 10 seconds and then I had my wife start it while I was at the engine. I am reaching out to a local diesel mechanic who I hope will be able to give it a listen and we’ll record audio. We’ll send you a copy and would appreciate your opinion as well. Gonna try taking it out with just the 1 engine with the inoperable Drive in neutral. We have velvet drives. Should be okay to do so? Will be running slow, 5-6kts.
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08-25-2018, 08:55 PM
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#16
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Guru
City: Brookline, NH
Vessel Name: Shalloway
Vessel Model: Defever 44, twin Perkins
Join Date: Sep 2013
Posts: 2,260
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Yes velvet drives are ok to allow to freewheel at low speeds.
Ken
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08-26-2018, 03:31 PM
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#17
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Senior Member
City: Chesapeake Bay
Join Date: Oct 2012
Posts: 138
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Quote:
Originally Posted by Ski in NC
Would not expect a rod/piston/bearing failure if engine was ok when shut down, then a bad noise on next start. I too would be looking at things like damper plate, etc.
Might check valve gear under the rocker cover. Could be a sticky valve.
Audio of the noise can be very helpful.
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Waiting for a few mechanics to take a listen before we run her again .
Not all is lost, we now have a name on her/him
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08-31-2018, 01:57 PM
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#18
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Senior Member
City: Solomons MD.
Vessel Name: Sun Runner
Vessel Model: 1985 Mainship 34 Trawler MK III
Join Date: Mar 2018
Posts: 488
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Do a search on here and the Internet. Perkins 6.354 manuals are not hard to find. I think 1 is on here. Tractor or boat are the same internals. And you can use the same manuals to a point.
Find a cheap stethoscope (Harbor Freight maybe) isolate the noise. If there were metals in the fluids and banging I'd go with a crank or rod bearing. Piece of wood against the block and up to ear will work too. Don't run it a lot. You don't want to mess up the crank.
Rebuild kits are available. Sleeves, pistons, rods, bearings..
Now the bad... Almost a pull the engine job to rebuild. No way to get to the crank if it's a bearing. At the very least lift the engine and work on it. Under it...
Plus all the stuff you have to take off to do it. And a twin, less room...I'd pull the engine myself. So much easier to work on and do it right that way...
Or pull and replace with a rebuilt one. Keep that old one and rebuild it for when the other one goes.....
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09-01-2018, 12:00 AM
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#19
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Senior Member
City: Aposentillo
Join Date: Jul 2018
Posts: 172
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Hopefully your diagnosis proves favorable however, in the event of a big end rod bearing failure (or any other catastrophic failure), I'd pull er out for a proper rebuild. You want to get all the metal floaties out of oil galleries and clean any scale out of coolant passages as well. Old school hot tanks are going the way of the dinosaur but jet blast cabinets, soda blasting and baking blocks and heads will render same results. Good luck
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09-01-2018, 06:44 AM
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#20
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Member
City: New Hampshire
Join Date: Sep 2016
Posts: 7
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What metals were detected in the oil sampling? In this engine with trouble or the transmission? I'm sure you gave this a lot of thought already, I'm just curious.
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