07F150LariatScrew

Good evening guys,


I am in the middle of a full timing swap and figured I’d change out my roller followers and lash adjusters as well. Well as I was pulling out my lash adjusters I noticed that the cylinder that the lash adjusters sits in had a hole in the bottom of it! Every single one on both heads had what looked like a corn kernel sized hole at the bottom of the cylinder. I cannot find any information on this and I’m pretty much stumped as to my next step....

I had one bad roller follower that was chewed up but other than that everything else was preventive maintenance.

Has as anyone experienced this before?

Also this is a a new to me 07 screw with about 140,000 on the odometer.


I can’t upload photos to the site for whatever reason but these are the links to pictures of the holes I’m talking about.


https://ibb.co/xDm3NVT
https://ibb.co/nnnYZMW
https://ibb.co/z4zcmwX

DrTriton

Those holes are supposed to be there. I’ve seen them on a multitude of Ford 2V, 3V and 4V heads over the years.

ShirBlackspots

Exactly. The lash adjusters are hydraulically controlled via oil (they ride on a cushion of oil, pushing against the rocker arms). If there were no holes to get oil to them, how would they work?