Need help! clyinder head


Joined
Nov 1, 2017
Messages
167
Reaction score
0
Points
16
Age
23
Location
St Petersburg, FL
Vehicle Year
1991
Make / Model
Ford
Engine Size
2.3
Transmission
Automatic
So diagnosing my oil pressure concern i decided to just yank the whole motor and i found this wrong with the cylinder head which i bought re manufactured. If my mind serves me correctly these are cam bearings, would that cause my oil pressure issue and metal scraping noises when first started?
 

Attachments



Rock Auto 5% Discount Code: 57CD9601BD5AB4 Expires: July 1, 2019

tomw

Active member
Joined
Aug 15, 2007
Messages
1,428
Reaction score
13
Points
38
Location
toenails of foothills NW of Atlanta
Vehicle Year
1985
Make / Model
ford
Engine Size
lima bean
Transmission
Manual
My credo
vertical and above ground
Release the cam followers, and pull the camshaft out of the head. Then you can see the cam bearing surface, the cam itself to know the actual condition. If the bearing inserts are scored and damaged, you can leak a lot of oil through the created excessive clearance, reducing pressure within the whole system. A lot of the oil will flow through the easiest exit, and the other bits get less than normal.
What your pictures is possible cam bearing damage. Cannot tell w/o removing the cam.

Lack of lubricant in the pan decreases pump output, and the passage to the cam bearings is sort of roundabout. The oil flows up from the block, across a narrow passage on the bottom of the cylinder head, around a head bolt(peripheral flow) into a passage in the head that leads to a gallery that feeds the cam bearings and the lifter supports.
If you look at the bottom of the head, near the edge, drivers side rearward area you'll see the small volume that connects to a cylinder head bolt hole. That's how oil gets to the cam bearings & lifters.
tom
 
Joined
Nov 1, 2017
Messages
167
Reaction score
0
Points
16
Age
23
Location
St Petersburg, FL
Vehicle Year
1991
Make / Model
Ford
Engine Size
2.3
Transmission
Automatic
Release the cam followers, and pull the camshaft out of the head. Then you can see the cam bearing surface, the cam itself to know the actual condition. If the bearing inserts are scored and damaged, you can leak a lot of oil through the created excessive clearance, reducing pressure within the whole system. A lot of the oil will flow through the easiest exit, and the other bits get less than normal.
What your pictures is possible cam bearing damage. Cannot tell w/o removing the cam.

Lack of lubricant in the pan decreases pump output, and the passage to the cam bearings is sort of roundabout. The oil flows up from the block, across a narrow passage on the bottom of the cylinder head, around a head bolt(peripheral flow) into a passage in the head that leads to a gallery that feeds the cam bearings and the lifter supports.
If you look at the bottom of the head, near the edge, drivers side rearward area you'll see the small volume that connects to a cylinder head bolt hole. That's how oil gets to the cam bearings & lifters.
tom
Hey Tom! thanks for the explanation ended up being a defective cylinder head have to send it back unfortunately, seller wasn't happy but neither was I, bath and forth that i damage it however i never drove the truck lol. That was the metal noise i was hearing was the oil pump or rod bearings to begine with however truck is tore apart might as well do rod bearings to lol.
 


Top