Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 04-01-2012, 10:45 PM   #1
Registered User
 
Country: United Kingdom
Location: Dorset
Occupation: Marine Engineer
Interests: Driving boats fast, wakeboarding and boating to pub
Boat name: none
Boat make: Ring 20, 17ft Plancraft Sabre
Engines: Mariner 200 2.5, Yamaha 115 V4
Cruising area: Poole

Join Date: Aug 2009
Location: Dorset
Posts: 70
Send a message via MSN to odjsabre
mariner 2.5v6 rattle

Hi all,

I have a mariner 2.5v6 which starts and runs perfect and has good compression.
When idling it has a slight rattle from somwhere on the engine, however I cant seem to pinpoint the cause of the noise.

It is only when idling and with the engine hood off that its really noticeable, the engine is low hours and has been well looked after and never overheated.

When I increase the revs the rattle disappears, I am not massively familiar with these engines so just wondered if there was anyone that may be able to shed some light on the cause of this?

Many thanks

Oli
__________________

odjsabre is offline   Reply With Quote
Old 04-01-2012, 11:07 PM   #2
Registered User
 
sean1982's Avatar
 
Country: Channel Islands
Location: Guernsey
Occupation: Plant Operator
Interests: Cars/Boats/Bikes/Women/Beer
Boat name: Paranoid
Boat make: Phantom 20
Engines: Merc 2.5
Cruising area: Herm/Sark

Join Date: Jul 2009
Location: Guernsey
Posts: 269
i had a rattle on mine last year, turned out it was the lower crank bearing, could also be the top bearing too. grab the flywheel and see if theres any excessive movement side to side.
__________________

sean1982 is offline   Reply With Quote
Old 05-01-2012, 08:11 AM   #3
Registered User
 
Country: United Kingdom
Location: Dorset
Occupation: Marine Engineer
Interests: Driving boats fast, wakeboarding and boating to pub
Boat name: none
Boat make: Ring 20, 17ft Plancraft Sabre
Engines: Mariner 200 2.5, Yamaha 115 V4
Cruising area: Poole

Join Date: Aug 2009
Location: Dorset
Posts: 70
Send a message via MSN to odjsabre
hi,

have already tried that and cant feel any excessive movement there at all.

thanks, oli
odjsabre is offline   Reply With Quote
Old 05-01-2012, 12:14 PM   #4
Registered User
 
gazza's Avatar
 
Occupation: Champion Pie Eater
Boat name: On The Rocks
Boat make: Ring 21 marshan 17 four winns horizon, hydro 3 pointer, f2 cat, backdraft 22
Cruising area: Way up norf and Sarf coast areas

Join Date: Apr 2007
Posts: 1,618
Speak to Lloyde or Driver 510 here as they had it apart,
I think I know what it might be,
Sounds like the rattle we had on a 2.5 Promax not a knock, could be a cheap repair but it has to come apart.

gaZ
gazza is offline   Reply With Quote
Old 05-01-2012, 01:52 PM   #5
Registered User
 
Country: United Kingdom
Location: Dorset
Occupation: Marine Engineer
Interests: Driving boats fast, wakeboarding and boating to pub
Boat name: none
Boat make: Ring 20, 17ft Plancraft Sabre
Engines: Mariner 200 2.5, Yamaha 115 V4
Cruising area: Poole

Join Date: Aug 2009
Location: Dorset
Posts: 70
Send a message via MSN to odjsabre
many thanks, will do.

oli
odjsabre is offline   Reply With Quote
Old 05-01-2012, 03:01 PM   #6
Registered User
 
Country: United Kingdom
Location: Dorset
Occupation: Marine Engineer
Interests: Driving boats fast, wakeboarding and boating to pub
Boat name: none
Boat make: Ring 20, 17ft Plancraft Sabre
Engines: Mariner 200 2.5, Yamaha 115 V4
Cruising area: Poole

Join Date: Aug 2009
Location: Dorset
Posts: 70
Send a message via MSN to odjsabre
what is it you think it might be anyway?

thanks, oli
odjsabre is offline   Reply With Quote
Old 05-01-2012, 04:47 PM   #7
Registered User
 
lloyde's Avatar
 
Country: uk
Location: portsmouth
Occupation: Director of a fiberglass company
Interests: boats,cars,bikes,paintball
Boat make: phantom 23,Extreme 24
Engines: 6.2 mercrusier + 2.5 280 mercy
Cruising area: solent

Join Date: Jul 2009
Location: portsmouth
Posts: 524
Quote:
Originally Posted by gazza View Post
Speak to Lloyde or Driver 510 here as they had it apart,
I think I know what it might be,
Sounds like the rattle we had on a 2.5 Promax not a knock, could be a cheap repair but it has to come apart.

gaZ
Mine was the oil drive coming apart photos here

http://www.boatmad.com/forum/f5/150-to-225-promax-14900.html
lloyde is offline   Reply With Quote
Old 05-01-2012, 05:39 PM   #8
Registered User
 
sean1982's Avatar
 
Country: Channel Islands
Location: Guernsey
Occupation: Plant Operator
Interests: Cars/Boats/Bikes/Women/Beer
Boat name: Paranoid
Boat make: Phantom 20
Engines: Merc 2.5
Cruising area: Herm/Sark

Join Date: Jul 2009
Location: Guernsey
Posts: 269
did you put a new oil drive in? or can you remove them?
sean1982 is offline   Reply With Quote
Old 05-01-2012, 05:56 PM   #9
Registered User
 
driver510's Avatar
 
Country: UK
Location: Portsmouth
Occupation: Marine Engineer
Interests: everything fast
Boat make: Phantom 28/Ring 16
Engines: 2x Mercury 3.0 250 EFI/Evinrude 70
Cruising area: Solent

Join Date: Nov 2005
Location: Portsmouth
Posts: 1,255
Talking rattle

i pulled the drive out of the promax
__________________
www.rsoutboards.co.uk
driver510 is offline   Reply With Quote
Old 05-01-2012, 05:58 PM   #10
Registered User
 
driver510's Avatar
 
Country: UK
Location: Portsmouth
Occupation: Marine Engineer
Interests: everything fast
Boat make: Phantom 28/Ring 16
Engines: 2x Mercury 3.0 250 EFI/Evinrude 70
Cruising area: Solent

Join Date: Nov 2005
Location: Portsmouth
Posts: 1,255
Talking rattle

if you need any advice call me on 07702 958175
__________________
www.rsoutboards.co.uk
driver510 is offline   Reply With Quote
Old 05-01-2012, 06:03 PM   #11
Registered User
 
lloyde's Avatar
 
Country: uk
Location: portsmouth
Occupation: Director of a fiberglass company
Interests: boats,cars,bikes,paintball
Boat make: phantom 23,Extreme 24
Engines: 6.2 mercrusier + 2.5 280 mercy
Cruising area: solent

Join Date: Jul 2009
Location: portsmouth
Posts: 524
Quote:
Originally Posted by sean1982 View Post
did you put a new oil drive in? or can you remove them?
We put a new one in because we were not sure what would happen with the big space that was left ( crank case pressure , movement and so on )and did not want to have to pull it apart again .
Driver 510 your man ,the engine was fantastic after .
lloyde is offline   Reply With Quote
Old 31-01-2012, 11:25 AM   #12
Registered User
 
Country: United Kingdom
Location: Dorset
Occupation: Marine Engineer
Interests: Driving boats fast, wakeboarding and boating to pub
Boat name: none
Boat make: Ring 20, 17ft Plancraft Sabre
Engines: Mariner 200 2.5, Yamaha 115 V4
Cruising area: Poole

Join Date: Aug 2009
Location: Dorset
Posts: 70
Send a message via MSN to odjsabre
Hi all,

For those who are interested, I pulled the engine apart last night and found a trapped bleed hose and a set of knackered small end bearing on no.2 cylinder!

Oli.
__________________

odjsabre is offline   Reply With Quote
Reply

Thread Tools
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


Powered by vBadvanced CMPS v3.2.3

All times are GMT +1. The time now is 10:06 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.