Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 17-03-2015, 21:11   #1
Registered User

Join Date: Mar 2013
Posts: 2
Help! Injector Pump bleed screw broke

well, the title explains it. I was in the process of bleeding my perkins 4108, and the bleeder screw broke inside the "hydralic head locking screw" (I believe thats the technical term). Does anyone know the size of the locking screw, and vent screw that fits inside the locking screw? I check trans atlantic diesel and couldnt find anything. And on a side note, anyone willing to sell a perkins 4108 alternator bracket? thanks!

sambodean is offline   Reply With Quote
Old 17-03-2015, 21:30   #2
Senior Cruiser
skipmac's Avatar

Cruisers Forum Supporter

Join Date: Oct 2007
Location: 29 49.16 N 82 25.82 W
Boat: Pearson 422
Posts: 11,239
Re: Help! Injector Pump bleed screw broke

The 4.108 was used extensively in tractors and other equipment. Try some farm and truck companies for parts. I found a great deal on a water pump for my Westerbeke W58 (which is a Perkins 4.154 painted red) on eBay from a farm tractor shop in Iowa.

The water is always bluer on the other side of the ocean.
skipmac is online now   Reply With Quote
Old 23-03-2015, 15:28   #3
Registered User
sanibel sailor's Avatar

Join Date: Feb 2013
Location: Sanibel FL
Boat: 1979 Bristol 35.5 CB
Posts: 898
Re: Help! Injector Pump bleed screw broke

The HP injection pump, I think, is the same CAV DPA pump as on my little Westerbeke. The screw is not available separately as far as I was able to tell, including tractor shops, etc. I recall it is 10-32 thread, I got a allen head cap screw that size and cut it to length, then ground a notch in the lower threads to let fuel and air escape as the screw is backed out. Having an allen head allows a long wrench which is helpful in my installation.
John Churchill Sanibel FL
NURDLE, 1979 Bristol 35.5 CB
sanibel sailor is offline   Reply With Quote
Old 25-03-2015, 19:08   #4
Senior Cruiser

Cruisers Forum Supporter

Join Date: May 2013
Location: Oregon to Alaska
Boat: Wheeler Shipyard 83' ex USCG
Posts: 1,113
Re: Help! Injector Pump bleed screw broke

A shop that rebuilds injector pumps would be your best bet. Depending on age, there's more than one pump used on the 4108.
Lepke is offline   Reply With Quote

crew, 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
volvo penta 2002 cooling system - broke apart screw arecuk Engines and Propulsion Systems 6 10-03-2015 22:30
Bleed Screw - Volvo Penta D1-30 Katmando Engines and Propulsion Systems 0 19-02-2013 08:58
Injector Pump Won't Bleed hummingway Engines and Propulsion Systems 53 25-05-2011 20:07
Injector Pump Bleeder Screw hummingway Engines and Propulsion Systems 11 18-04-2011 13:51
Electric Diesel bleed pump advice... Christian Van H Engines and Propulsion Systems 18 09-12-2008 04:32

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 15:11.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.