350 Knock, even when new/great oil pressure

Thank you! I will try a few and see what works

 

Your most welcome!

 

hmmm...part b subpart 1 entry sounds exactly what i am experiencing, s it is intermittent and occurring for the duration of 2.2 and 3.9 seconds in its most extreme. Yes, I timed it lol(her health is very important to me)

 

Been using WIX for years..

 

I can tell you about the Fram filters as I did use them forever In 1977 thru the mid 80's and that was the only filter I used. I ran the standard filter for a lot of years.

But, The one I used after I started to hot rod it in the mid 80's was the HP2 Fram or the HP1 can't remember since one of those fit the Mustang 5.0 That was the performance filter I used and I got them from Summit racing all the time. I would use 20-50 Valvoline Racing oil at the time and I never had a problem with the engine.

I never had a problem until I used that Royal purple oil in 1993. I had less oil pressure and that day at the track was when the motor started to knock So I drove in 40 miles all the way home with a knock and when I took it apart the crank had cracked in half. Was the filter the problem, heck who knows but the only thing that was different was that oil

How I drove home with that who knows but after that I had the motor rebuilt by a Race shop and the rest is history. I think I still used the Fram performance filter until I found this site and got the info on using the Wix Napa filter Still running after all these years so....

Maybe today they are not worth a crap but in the 80's there was no problem with them as far as I was concerned and I did not ever treat that engine with kit gloves either.

 

FRAM THE ORANGE WALL OF DEATH ...nappa gold/ wix for my buick

 

I personally disassembled a fram, a wix, an ac Delco and another one I can't remember at the moment. You won't find a fram on one of my vehicles, and this isn't based on some hand picked thread to give me warm fuzzies or internet conjecture. It's based on my 2 eyes and my 2 hands and the grey matter between my 2 ears. The day anyone convinces me that a filter made of much less robust materials and assembled in a much less robust manner is somehow beneficial for it's intended purpose, I'll eat that crow. But I don't think I'll be dining on the black bird any time soon.

OP, sorry for the sidetrack.

 

So, you have taken all 16 lifters apart, and measured the plunger to body clearance?... or do you have access to a bleed down tester?

Here is an informative article on the subject..

https://gwatneyperformance.com/lifters-lash-preload-dont-know-wont-hurt-will/

JW

 

Whats an "up to date" oiling system?

 

I'm gonna speculate and say this refers to engines that pressure the crank first

 

Well Im seeing oil squirters,,, PLUS in more motors today.. that I saw back when I was younger...
Just the turbo charger. get the smallest piece a Fram filter in it PoooFFFFF..

 

Oddly, no one mentions ACDelco...have always been tested, always had anti-drain back valves...PF24 anyone? ...it’s all I’ve ever used and would never use anything else. Not to mention NAPA is pretty proud of their **** these days they are quite pricey on consumable items as of late. And yeah any external pump motor is going to have that operating characteristic after siting a while, probably even more so as the ambient temp drops. And as noted, no harm done either.

 

I don't understand your reply.
Oil squirters?

 

It would be much easier to Google them Than for me to explain..

But the are in 6BT cummins motors. Ive seen them in Mitsubishi EVO motors... And A few more.

Please bear with me I hope this makes sense. this the the best I can explain it. AND I dont Totally understand it myself on just what they do but close enough I think..
They squirt oil under the piston to place more oil under the rings on cylinder walls...
When A Cummins fails under warranty that the first place Cummins looks Blockage in the OS ... If they are blocked no warranty..
The tin seal on the Oil quart Or Gallon if not totally removed Very small piece can fall in to the Oil filter when changing oil...
Cummins Does Not recommend filling oil filter when changing oil.. Remember the center of the oil filter is the filtered oil.
A Failed Oil filer like a cheap paper Fram will do the the same fall apart and block a lifter.

 

Ahh now I understand what yer saying
The oil squirters are used to help cool the piston by carrying some heat away in engines that are "high stress" such as diesels, and turbocharged engines.
I know Buick had "spit holes" on the big end of the connecting rods, I don't know when they started or when they stopped using them. The rod cap had half the hole, the rod had the other half, same with the rod bearing. The purpose was to "spit" oil on the adjacent cylinder wall/rod/wrist pin/piston.
Buick eliminated the feature eventually, maybe in '74 not sure. I've never seen the hole on cap screw rods.
The hole would usually get eliminated anyway resizing the big end of the rods.