Injection pump too short? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
 Not a Member? 

Diesel This is a forum dedicated to diesel engines and their applicable accessories.


Reply
 
LinkBack Thread Tools
  #1  
Old 10-16-2014
PaulinVictoria's Avatar
Senior Member
 
Join Date: Aug 2009
Location: Sidney, BC
Posts: 1,903
Thanks: 7
Thanked 47 Times in 46 Posts
Rep Power: 6
PaulinVictoria is on a distinguished road
Injection pump too short?

So my ongoing engine saga continues. Is it possible when my injection pump was rebuilt, that it was reassembled too short? The timing on the Yanmar is adjusted by putting shims in and taking shims out to change when the bottom of the pump is pushed by a cam.
If I add shims, the injector pops later, and if I take them out, it pops sooner. Problem is, even if I take all of them out, it still pops late. I can only think that the bottom of the pump has somehow shrunk about 1mm.
Basically I cannot get the timing right, the best I can get is about 6 teeth late (which is about 5-6 degrees I guess).
__________________
Orange Crush
1974 C&C27 MkII

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 10-16-2014
Member
 
Join Date: Sep 2013
Location: Muskegon, Mich
Posts: 59
Thanks: 0
Thanked 6 Times in 6 Posts
Rep Power: 2
capt jgwinks is on a distinguished road
Was the engine in time before the pump work? Mating surfaces clean, no gasket, only spray sealant?
Rebuilding the pump is not supposed to alter the timing. When I had mine done the timing did not change.
Does it run now?
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 10-17-2014
PaulinVictoria's Avatar
Senior Member
 
Join Date: Aug 2009
Location: Sidney, BC
Posts: 1,903
Thanks: 7
Thanked 47 Times in 46 Posts
Rep Power: 6
PaulinVictoria is on a distinguished road
Re: Injection pump too short?

Well, more digging and chat with an injection specialist. Turns out that the injector firing is nothing to do with timing the engine, but also the rail slider thing on the pump has to be in the central position, i.e. flush. With the throttle set half way as per the shop manual, the slider thing is not in the middle, I had to partially pull the engine stop lever too. I now have the timing close enough.
__________________
Orange Crush
1974 C&C27 MkII

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
yanmar injection pump flash39 Diesel 1 07-25-2014 12:17 PM
Yanmar fuel injection pump flash39 Gear & Maintenance 1 07-22-2014 01:12 PM
Volvo MD7A fuel injection pump Windrider1 Diesel 6 07-08-2014 09:38 AM
Ford Lehman fuel injection pump ymerle Gear & Maintenance 0 04-26-2009 02:59 AM
Yanmar - fuel injection pump question rperret Gear & Maintenance 7 05-24-2007 11:00 AM


All times are GMT -4. The time now is 08:31 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.