Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 18-04-2011, 14:18   #1
Moderator Emeritus
 
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,933
Images: 5
Question Injector Pump Won't Bleed

I've been wrestling with this a while but now that it's sailing weather I've got to get a handle on it.

Perkins 4.154 is the engine. The injector pump and secondary filter aren't the same as shown in the shop manual. As per hand written instructions in the margins I loosened the filter and worked the manual pump until fuel overflowed the filter and then tighten it, so I know the pump is working and the fuel is good to that point.

I have pumped a lot and can't get anything out of either of the bleeders on the injector pump. I'm guessing that the line from the filter to the pump is clogged? Something similiar?

I didn't bring the shop manual home from the boat and haven't looked yet to see what is involved in dismantling things. Does it sound like that's where I'm going next? Anyone care to share their experiences with this?

Thanks.
__________________

__________________
“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 18-04-2011, 14:31   #2
Senior Cruiser

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Seattle
Boat: Cal 40
Posts: 2,401
Images: 7
Re: Injector Pump Won't Bleed

You have to crank the engine to get the fuel from the injector pump to the injectors with the injectors cracked open.

John
__________________

__________________
cal40john is offline   Reply With Quote
Old 18-04-2011, 14:47   #3
Moderator Emeritus
 
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,933
Images: 5
Re: Injector Pump Won't Bleed

It's not the injectors that won't bleed, it's the bleeders on the injector pump. They are supposed to be bled before turning the engine over.
__________________
“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 18-04-2011, 15:37   #4
Registered User
 
courageous cat's Avatar

Join Date: Mar 2008
Location: michigan
Boat: g-cat 5. m
Posts: 156
Images: 1
Re: Injector Pump Won't Bleed

Sounds like you need to pull the line off the injector pump and do the manual pump see if anything comes out. If not something is stuck in that line. Or at where it comes out of the filter
__________________
courageous cat is offline   Reply With Quote
Old 18-04-2011, 16:00   #5
Registered User

Join Date: May 2009
Location: Vancouver, Wash.
Boat: no longer on my Cabo Rico 38 Sanderling
Posts: 1,794
Send a message via MSN to John A
Re: Injector Pump Won't Bleed

I doubt that something large enough to clog the fuel ilne or front end of the injector pump could get past your filter, unless you've removed the filter element.

Take a bulb-hand-pump(normaly used to prime an outboard motor) and attach it to the fuel down stream of the fuel filter. If you can force fuel through the injecter pump you need to look at the fuel pump. If not, disconnect the fuel line from the injector pump, and pump again, if you get fuel flow then rebuild the injector pump.
__________________
John A is offline   Reply With Quote
Old 18-04-2011, 16:05   #6
Registered User

Join Date: Jan 2010
Location: Port Ludlow Wa
Boat: Makela,Ingrid38,Idora
Posts: 1,973
Re: Injector Pump Won't Bleed

You did not mention if you have tried cranking it already. It won't hurt it and it may just eat any air in the line and fire off. I was surprised and pleased when my Yanmar did just that.

Todd
__________________
IdoraKeeper is offline   Reply With Quote
Old 18-04-2011, 16:23   #7
Registered User

Join Date: Dec 2007
Location: Brisbane
Boat: deboated
Posts: 672
Re: Injector Pump Won't Bleed

Not familiar with that pump but check it does not have a fuel cut solenoid.
__________________
meyermm is offline   Reply With Quote
Old 18-04-2011, 16:27   #8
Registered User

Join Date: Jul 2006
Posts: 3,949
Re: Injector Pump Won't Bleed

There's probably two bleed screws on the injector pump and they should weep fuel if you pump enough. However, you can also try loosening a couple of the nuts where the fuel lines from the injector pump reach the injectors. Crank over the engine for a bit. Fuel should spray out where you've loosened the nuts. If the engine starts coughing to life, tighten the nuts back up and the engine should run. I need to do this with my Perkins 4.236 most times I do an engine bleed; however, I can get fuel to weep out of the bleed screws on the injector pump using just the hand pump on the engine.

Maybe this is too obvious, but you might want to loosen the exit line from the secondary fuel filter to make sure that fuel is actually reaching that point.
__________________
Kettlewell Cruising
Kettlewell is offline   Reply With Quote
Old 18-04-2011, 16:47   #9
Moderator Emeritus
 
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,933
Images: 5
Re: Injector Pump Won't Bleed

The manual talks about a danger to the injector pump if I crank the engine before the pump is bled. It sounds like this isn't something to worry about?
__________________
“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 18-04-2011, 16:58   #10
Registered User

Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
Re: Injector Pump Won't Bleed

Quote:
Originally Posted by hummingway View Post
The manual talks about a danger to the injector pump if I crank the engine before the pump is bled. It sounds like this isn't something to worry about?
I think the concern is lubrication when rolling the pump over with zero fuel in it.
__________________
perchance is offline   Reply With Quote
Old 18-04-2011, 17:00   #11
Moderator Emeritus
 
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,933
Images: 5
Re: Injector Pump Won't Bleed

Quote:
Originally Posted by perchance View Post
I think the concern is lubrication when rolling the pump over with zero fuel in it.
I would guess the only time that would happen would be if it had been rebuilt? I tell you I would awful glad to turn the engine over a couple of times verses cranking that hand pump while angling a mirror just right so I can see the %&#$ bleeders.
__________________
“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 18-04-2011, 17:12   #12
Registered User

Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
Re: Injector Pump Won't Bleed

Your call but it were me I would. Crank for max of 30 sec then rest the starter for a two minute cool down. If you get fuel at the injector bleeders close them and crack two fuel lines at the injectors and see if it fires. This was my method for bleeding a four cyl. International. Not the same breed as yours but a diesel is a diesel more or less.
__________________
perchance is offline   Reply With Quote
Old 18-04-2011, 17:32   #13
Moderator Emeritus
 
hummingway's Avatar

Cruisers Forum Supporter

Join Date: Jan 2010
Location: Gabriola Island & Victoria, British Columbia
Boat: Cooper 416 Honeysuckle
Posts: 6,933
Images: 5
Re: Injector Pump Won't Bleed

Sounds reasonable.
__________________
“We are the universe contemplating itself” - Carl Sagan

hummingway is offline   Reply With Quote
Old 18-04-2011, 17:46   #14
Senior Cruiser
 
AfterHoursNLCT's Avatar

Cruisers Forum Supporter

Join Date: Nov 2010
Location: Quaker Hill, CT (just above the US Coast Guard Academy)
Boat: Silverton 34 Convertible
Posts: 191
Re: Injector Pump Won't Bleed

Also ensure the port of the bleeder screw is clear.......LL
__________________
AfterHoursNLCT is offline   Reply With Quote
Old 18-04-2011, 19:16   #15
Registered User
 
jrd22's Avatar

Join Date: Jan 2008
Location: San Juan Islands, WA
Boat: 1988 Brewer Three Seas 40' Pilothouse
Posts: 251
Re: Injector Pump Won't Bleed

Unless your inj. pump is completely dry I don't think you will do any damage by cranking the engine over to see if you can get fuel to bleed out the screws.
__________________

__________________
John Davidson
S/V Laurie Anne
1988 40' Brewer Pilothouse
jrd22 is offline   Reply With Quote
Reply

Tags
injector pump

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Leaking Injector Pump Nemos Engines and Propulsion Systems 30 19-11-2012 14:53
Injector Pump Bleeder Screw hummingway Engines and Propulsion Systems 11 18-04-2011 14:51
Diesel injector pump mestrezat Engines and Propulsion Systems 2 16-12-2008 13:28
Electric Diesel bleed pump advice... Christian Van H Engines and Propulsion Systems 18 09-12-2008 05:32
Yannmar fuel Injector Pump Removal Hi Ho Engines and Propulsion Systems 3 03-05-2008 20:21



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:02.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.