Results 1 to 6 of 6

Thread: cracks in rocker arm assy caps

  1. #1

    Array
    Status
    Offline
    Join Date
    08-17-2011
    Posts
    54
    Location

    New Orleans, LA
    Vehicle

    1986 Mitsubishi Mighty Max
    Engine

    G63B

    cracks in rocker arm assy caps

    Click image for larger version. 

Name:	WP_20140420_19_12_31_Pro.jpg 
Views:	47 
Size:	38.2 KB 
ID:	9468Click image for larger version. 

Name:	WP_20140420_19_14_42_Pro.jpg 
Views:	51 
Size:	40.6 KB 
ID:	9467

    i'm taking the head to a machine shop to get the broken exhaust manifold stud removed ... i noticed there are some cracks in the caps on the rocker arm assy that hold the camshaft in place. should i be worried about these? do i find them at junkyard?

  2. #2



    Array
    Status
    Offline
    Join Date
    03-26-2011
    Posts
    1,512
    Location

    Vacaville, CA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    That looks like casting flash from when the parts were made/casted. Most likely those marks are just cosmetic from what I'm seeing in the pics.
    Josh
    09 BMW 335i E92 Twin turbo
    89 Macrocab 4g63 Turbo swapped & Bagged: Build Thread

  3. #3

    Array
    Status
    Offline
    Join Date
    12-21-2013
    Posts
    1,033
    Location

    Maurertown, Virginia
    Vehicle

    1990 Dodge D-50
    Engine

    4G64
    Make absolutely sure they ARE cracks, and not from when the aluminum was cast. A magnifying glass will help you determine this, also see if the "crack" cintinues on the opposite side. They might not be cracks at all.

  4. #4



    Array
    Status
    Offline
    Join Date
    07-24-2012
    Posts
    2,357
    Location

    Washington State
    Vehicle

    1986 Mitsubishi Mighty Max
    Engine

    G63B
    They are casting flash. If cracks they would go right to where they would of started and that would be that hole where the bolt is. If you can't see them there then it's nothing to worry about. Mine has same thing and in more places.

  5. #5



    Array
    Status
    Offline
    Join Date
    03-16-2011
    Posts
    3,614
    Location

    Sacramento, CA
    Vehicle

    1979 Dodge D-50
    Engine

    Chevy V6
    Yep it's fine nothing to worry about..


    In the words of officer barbrady "Ok people nothing to see here. Move along.. "
    Members come and members go, But the board keeps track of them.
    Check out the Fear Monger by
    clicking HERE.

    The MightyRam50 site is sponsored in part by On Site Concrete Inc.

  6. #6

    Array
    Status
    Offline
    Join Date
    08-17-2011
    Posts
    54
    Location

    New Orleans, LA
    Vehicle

    1986 Mitsubishi Mighty Max
    Engine

    G63B
    many thanks everyone! i wasn't looking forward to scratching around in junkyards for these.

    Got the head back from the shop already. The guy was able to remove the stud without damaging the threads so no helicoil.

    They pressure tested it, vacuum tested it and inspected it. they said it's flat, straight and normal!

    waiting on the gasket and bolts and exhaust manifold studs from Mitsubishi. should be here on wed ...

    thanks again

    Pierre

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •