Jump to content

E7 350 injector retainer plug and threads broken


Recommended Posts

My 2002 RD is at it again.. it all started with a miss and a tick. Within seconds it became a hard knocking and the damage was done. 

 Number 4 cyl has bent valves (but not pushrods?), the exhaust bridge won't lift off by hand.(bent bridge guide) and strangely the injector cap plug was just lying there...

  The threads have broken off the head completely! The piece was between the outer valves. Loosely, on edge, of the water manifold side. From this, I guess, I will have another boat anchor!

 I would appreciate any thoughts of what you fellas think caused this failure. BTW, none of the valves have un-keyed. 20240609_214536.thumb.jpg.b60d95c3c21488b5328eeb7ed0ace372.jpg20240609_214611.thumb.jpg.4754979852f0a8b18af07c63077a7296.jpg

Link to comment
Share on other sites

is the outboard intake valve 'High' compared to the others?  was the engine pushing coolant recently? was a valve adjustment done shortly before this happened? did the driver overspeed the engine? 

Link to comment
Share on other sites

None of the above. I had the heads worked about 2 years ago. I drive the truck myself. It has a roll-off body and most of the loads are under 14k.

  • Like 1
Link to comment
Share on other sites

Yup the head is definitely Anker  material !( theory ) the chunk got between the springs stopped the valve from going all the way down and results are what you have! hope fully the piston is ok and you can get away with just a head ! 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...