Jump to content

Jake brake adjustment problem


Recommended Posts

Just installed a new rear head on my AC 427. Got it all put back together and was running overhead and had a problem on #4 Jake adjustment, with the screw backed all the way out I could not get my feeler gauge in between actuating pin and the piston. I had no problem with the others. Any help would great. Thanks 

Link to comment
Share on other sites

You need to install 3 .025 shims under the rocker stands of the rear head.

Common issue with a re man head. I can't think of the part number off the top of my head, but your dealer should have them in stock.

Reason for this is that your head was machined and now the valves are sitting higher. Shimming up the rocker will eliminate any engine brake clearance issues.

Edited by steeler
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.

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...