Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-05-2014, 20:35   #16
Registered User
 
birdsey's Avatar

Join Date: Jan 2010
Location: Salisbury NC
Boat: Beneteau Idylle 13.5 and Windrider 16
Posts: 125
Send a message via MSN to birdsey
Re: Perkins 4-108 Injector Removal

Thanks again Guy,

So I take it the smart thing to do would be to go ahead and pull the engine and get it overhauled?

I talked to the folks at TA Diesel and they said with an engine with under 800 hours and being in a fresh water since new the engine should be a great candidate for repair or overhaul.
__________________

__________________
birdsey is offline   Reply With Quote
Old 07-05-2014, 20:36   #17
Registered User
 
irwin37's Avatar

Join Date: Oct 2009
Location: Gettysburg Pa
Boat: 1981 Irwin 37
Posts: 193
Re: Perkins 4-108 Injector Removal

Sounds like its stuck real good, if you force it, wood block, pry bar, starter fluid..... you will most likely break a ring or two. I used marvelous mystery oil. Filled each cylinder and kept adding each day until it turned over with a socket and wrench. This took about a week to free it. Unfortunately I tried the breaker bar before filling with cylinders with oil and managed to break several sets of rings which led to a complete rebuild.

Good Luck
__________________

__________________
irwin37 is offline   Reply With Quote
Old 07-05-2014, 20:40   #18
Guy
Registered User

Join Date: Feb 2013
Location: So. Oregon, USA
Boat: Seafarer36c
Posts: 4,308
Re: Perkins 4-108 Injector Removal

Quote:
Originally Posted by birdsey View Post
Thanks again Guy,

So I take it the smart thing to do would be to go ahead and pull the engine and get it overhauled?

I talked to the folks at TA Diesel and they said with an engine with under 800 hours and being in a fresh water since new the engine should be a great candidate for repair or overhaul.
Well those guy's are not going to far out on a limb as almost everything is repairable or replaceable.
__________________
Guy is offline   Reply With Quote
Old 07-05-2014, 20:47   #19
Registered User
 
birdsey's Avatar

Join Date: Jan 2010
Location: Salisbury NC
Boat: Beneteau Idylle 13.5 and Windrider 16
Posts: 125
Send a message via MSN to birdsey
Re: Perkins 4-108 Injector Removal

Thanks again. I will probably try to free it just a little more and then end up pulling it.

Everyone seems to be convinced to pull the injectors to get the lube in the cylinders. What if I were to put the valve cover back on and fill it to the brim with WD-40, would that get it above the rings? Maybe do that AND some in the injectors?

I promise this will be my LAST question!
__________________
birdsey is offline   Reply With Quote
Old 08-05-2014, 05:41   #20
Registered User

Join Date: Nov 2013
Location: NC
Boat: 1985 Catalina 30 Std Rig
Posts: 50
Re: Perkins 4-108 Injector Removal

Marvel mystery oil is the best solution. Don't think wd-40 is going to cut it.

If you google for seized engine marvel mystery oil I'm sure you will see a lot of info. It is the most commonly used lubricant for this purpose. You'll see people using it to free everything from seized motorcycle engines to large motors in cars or equipment.

I have personally used it on yard/farm equipment. If you try using force just plan on pulling the engine. You will break a ring.
__________________
Downtime is offline   Reply With Quote
Old 08-05-2014, 07:01   #21
Registered User
 
Mickeyrouse's Avatar

Join Date: Jun 2012
Location: Texas
Boat: Hinckley Bermuda 40
Posts: 61
Re: Perkins 4-108 Injector Removal

The idea of igniting starting fluid is best used by those who no longer wish eyebrows. The purpose of that is to get things heated up with the hope that the heat expansion will start a little movement in the spaces between parts. A safer way to accomplish that is to warm it with something like a heat gun (industrial hair-dryer type device) or the highest rated incandescent light bulb you can fit into an extension socket.
Westerbeke makes manuals for discontinued engines available as downloads in pdf format on their website. For all the things I dislike about Westerbeke (the list is long) this is one good thing they do.
__________________

__________________
Mickeyrouse is offline   Reply With Quote
Reply

Tags
perkins, removal

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
Perkins 4107 Starter billwa Engines and Propulsion Systems 11 10-09-2011 08:22
Replacement for Perkins M-20 Mike Sibley Engines and Propulsion Systems 1 18-07-2011 21:02



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:16.


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.