Reply
 
Thread Tools Search this Thread
 
Old 26 October 2005, 03:39   #11
Member
 
Pete7's Avatar
 
Country: UK - England
Town: Gosport
Boat name: April Lass
Make: Moody 31
Length: 9m +
Join Date: Aug 2001
Posts: 4,850
Mk1, thick stubby type are normally the best.
__________________

__________________
.
Ribnet is best viewed on a computer of some sort
Pete7 is offline   Reply With Quote
Old 26 October 2005, 04:17   #12
Member
 
Cookee's Avatar
 
Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 4,225
Every fuel bulb I've ever come across will pump air and fuel - never had to use my thumb!
__________________

__________________
Cookee
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
Cookee is offline   Reply With Quote
Old 26 October 2005, 08:19   #13
DJL
Member
 
Country: UK - England
Make: Ribcraft 6.5
Length: 6m +
Engine: Suzuki DF175TG
Join Date: Apr 2002
Posts: 929
Quote:
Originally Posted by Cookee
Every fuel bulb I've ever come across will pump air and fuel - never had to use my thumb!
I agree.

I use one regularly (or not so regularly as the neighbours might say) to pump fuel from the boat into the lawnmower. That always pumps air and self primes.
__________________
DJL is offline   Reply With Quote
Old 26 October 2005, 14:04   #14
Member
 
Country: UK - England
Town: Hoylake,Wirral
Boat name: Deerider and Beast
Make: Beufort and Avon
Length: 8m +
Engine: Outboards
Join Date: Oct 2005
Posts: 19
Fuel primer bulb

Quote:
Originally Posted by DJL
I agree.

I use one regularly (or not so regularly as the neighbours might say) to pump fuel from the boat into the lawnmower. That always pumps air and self primes.
Priming bulbs will suck air and there is no need for bleeding the system on carb models as the carb float chambers will do that for you. Even the the injection engines are self perging.
__________________
http://www.nationala1marine.co.uk

Ladrovers and RIBS what agreat combination
Hensh is offline   Reply With Quote
Old 04 November 2005, 08:07   #15
Member
 
Country: UK - England
Town: Mayfair, London
Make: RibEye/Ferretti 881
Length: 7m +
Engine: Yamaha 25/Twin MTU
Join Date: Oct 2002
Posts: 690
Many thanks for your replies...but the mystery deepens.

Despite the engine being able to idle, underload it cuts out.

However, on linking the engine up to a portable tank, it runs fine.

We have changed the bulb as well.

So the problem appears to be that the engine is unable to draw fuel from the main tank.


I guess this may be something to do with fuel lines / breathers. Everything visible looks OK, but there is no inspection hatch to look at the tank

I suppose we will have to cut a hole and make a hatch to have a look at it.
__________________
timw is offline   Reply With Quote
Old 04 November 2005, 09:00   #16
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,962
Does the fuel come up the pipe to the engine easily? If not, work down the piping, opening it at each connection, and try again. If you find that the blockage is in the tank section and you are unable to suck it clear, then blow it back into the tank. It could be that it will never recur.... then again, it may. However, it's a bit less drastic than attacking the floor and opening the tank.
__________________
JW.
jwalker is offline   Reply With Quote
Old 26 November 2005, 02:21   #17
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by timw
Despite the engine being able to idle, underload it cuts out.

However, on linking the engine up to a portable tank, it runs fine.
Sounds like it *could* be the fuel pump in the engine (unlikely, though, if it runs fine on the portable.)

One thing to try is to leave the filler cap open a bit to bypass your breather tube.

Does the fuel bulb on the primary system collapse when you're running? If so, it points more to fuel line clog.

Oh, and you might want to change out the filters again (I'm assuming you've got a cannister type filter in-line somewhere.) The on-engine fuel filter should be relatively cheap.

Luck;

jky
__________________

__________________
jyasaki is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:43.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.