Engine is a 4.6 out of a Calloway P38. I bought just the block from Will T. It was out of a known running truck with about 100k on it. I took it to a local shop and had everything checked out. details:
New Crower cam
New bearings all around
Honed block
Heads machined
New gaskets everywhere
New water pump
New alternator
New belt, plugs, wires, etc...
All break in procedures followed.
Issue:
Engine starts right up and idles great. After the truck reaches operating temp, it develops a bad knock. Using a scope, it's been guessed that the noise is coming from the area of #5 and #7.
Tried:
Pulled the pan and checked bearings
Pulled the valve cover and installed a new(ish) rocker assembly
Tried several weights of oil
Hooked up an oil pressure gauge. 50 at start up, 25 at idle.
Checked flex plate bolts
Cleaned pan and pick up (again)
All cylinders are firing and have proper compression
I'm sure I'm forgetting something.
Any ideas?
New Crower cam
New bearings all around
Honed block
Heads machined
New gaskets everywhere
New water pump
New alternator
New belt, plugs, wires, etc...
All break in procedures followed.
Issue:
Engine starts right up and idles great. After the truck reaches operating temp, it develops a bad knock. Using a scope, it's been guessed that the noise is coming from the area of #5 and #7.
Tried:
Pulled the pan and checked bearings
Pulled the valve cover and installed a new(ish) rocker assembly
Tried several weights of oil
Hooked up an oil pressure gauge. 50 at start up, 25 at idle.
Checked flex plate bolts
Cleaned pan and pick up (again)
All cylinders are firing and have proper compression
I'm sure I'm forgetting something.
Any ideas?