BoaterEd Store      - Help Support This Forum - Join Today!      Hunting/Fishing Stuff
BoaterEd
Username:
Password:
Save Password


Register

Active Topics | Active Polls | Resources | Members | Online Users | Avatar Legend | Statistics
[ Active Members: 3 | Guests: 156 ]  [ Total: 159 ]  [ Newest Member: wlsomaha ]
 All Forums
 Clubs - Organized Clubs, Cruises and Activities
 South Florida Boating Club
 Engine knock,Need Mechanic.
 New Topic |   New Poll New Poll |   Reply to Topic | 
Author Previous Topic: poke Topic Next Topic: Key West Vacation  

jmas

RO# 4313



Posted - Aug 30 2013 :  21:58:29  Show Profile  Reply with Quote
Came in from fishing trip offshore yesterday. Both engines ran great.(1995 454,s Fresh water cooled). Do not burn oil, Coolant is always full. Started engines today and hear a knocking sound from Starbord engine. Sounds like more than a lifter problem. No noise heard at idle but starts at 1200/1500 RPM.
Any sugestion on good marine engine mechanic, Pompano ,Fort Lauderdale area?
Joe M.
Luhrs 340 Express Fish

Homeport: Pompano Fla.

jtybt15

RO# 3300



Posted - Aug 31 2013 :  03:45:32  Show Profile  Reply with Quote
Check oil level anyway. knocking at start-up, hopefully, is oil drain back. How long was the engine running when the knock was heard.

Unfortunately, spun crank/main bearing or rod bearing will require complete rebuild.





Charlie

There is much to be said, in a world like ours, for taking the world as you find it and fishing with a worm.-Bliss Perry, 1904



Homeport: Ca Go to Top of Page

pdecat

RO# 842



Posted - Aug 31 2013 :  07:33:55  Show Profile  Reply with Quote
rule out the simple stuff with a hose as a stethoscope listen at front and rear. If I/O see if it is related to turning the steering.

Bruce



Edited by - pdecat on Aug 31 2013 07:37:28

Homeport: Gulf Coast FL Go to Top of Page

jmas

RO# 4313



Posted - Aug 31 2013 :  14:24:51  Show Profile  Reply with Quote
Charlie, I am expecting the worst.

Bruce, They are Inboards. Tried the Stethescope first thing. Sounds like Connecting Rod or wrist pin Knock.
Will get an opinion from a Mechanic but I am expecting to take engine out,Maybe replace both.
1200 hours and always maintained.
I have to get over the SHOCK.


Joe M.
Luhrs 340 Express Fish

Homeport: Pompano Fla. Go to Top of Page

pdecat

RO# 842



Posted - Aug 31 2013 :  15:20:15  Show Profile  Reply with Quote


Bruce



Homeport: Gulf Coast FL Go to Top of Page

jtybt15

RO# 3300



Posted - Aug 31 2013 :  22:17:40  Show Profile  Reply with Quote
Just don't take it to Rapido marine




Charlie

There is much to be said, in a world like ours, for taking the world as you find it and fishing with a worm.-Bliss Perry, 1904



Homeport: Ca Go to Top of Page

jmas

RO# 4313



Posted - Sep 03 2013 :  20:55:39  Show Profile  Reply with Quote
Had a mechanic check engine. He is sure noise is caused by faulty Harmonic balancer and thinks it can be replaced with engine in boat. If he is right, it is good news.
Hoping no other damage caused.


Joe M.
Luhrs 340 Express Fish

Homeport: Pompano Fla. Go to Top of Page

jtybt15

RO# 3300



Posted - Sep 04 2013 :  00:46:12  Show Profile  Reply with Quote
Big blocks are externally balanced like my 400 small block, which means the flywheel and harmonic balancer are weighted to off-set the internal rotating assembly. The only things that can happen to the balancer is slipping of the outer ring or shearing the key-way. Either can cause damage to all the internal bearings if allowed to continue running like that.

On the other hand, it's a very simple fix.





Charlie

There is much to be said, in a world like ours, for taking the world as you find it and fishing with a worm.-Bliss Perry, 1904



Homeport: Ca Go to Top of Page

saltysam

RO# 26



Posted - Sep 04 2013 :  00:58:11  Show Profile  Reply with Quote
Now that's a great lesson! Thanks for the continuing education....


Cheers!
Bill

Homeport: New River, Ft Lauderdale Go to Top of Page

pdecat

RO# 842



Posted - Sep 04 2013 :  07:51:49  Show Profile  Reply with Quote
That's why I asked to listen up front. Surprised you didn't hear it.

Bruce



Homeport: Gulf Coast FL Go to Top of Page

pdecat

RO# 842



Posted - Sep 04 2013 :  09:03:35  Show Profile  Reply with Quote
Balancers sound to me more like clacking while rods and mains are more muffled from being inside.

Bruce



Homeport: Gulf Coast FL Go to Top of Page

jmas

RO# 4313



Posted - Sep 06 2013 :  23:09:37  Show Profile  Reply with Quote
I have been getting a squeeling noise at startup recently,like a loose belt slipping on a pully but all belts were tight. Should have alerted to check the HB.
Is thread differant on bolt on LH/RH rotation engine? (LH thd.-RH thd.)?


Joe M.
Luhrs 340 Express Fish

Homeport: Pompano Fla. Go to Top of Page

jmas

RO# 4313



Posted - Sep 16 2013 :  20:40:06  Show Profile  Reply with Quote
Turns out Harmonic Bal. is OK. 3 mechanics confer Bearing knock. Engine will have to come out.
1200 Hrs. on both engines, maybe both should be replaced?


Joe M.
Luhrs 340 Express Fish

Homeport: Pompano Fla. Go to Top of Page
  Previous Topic: poke Topic Next Topic: Key West Vacation  
 New Topic |   New Poll New Poll |   Reply to Topic | 
Jump To:
BoaterEd © BoaterEd Go To Top Of Page
This page took 0.39 seconds to load
Forum Guidelines and Privacy Notice

    

Boatered.com