1994 5.8 lifters clacking
Thread Starter
|
New User
Joined: May 2019
Posts: 15
Likes: 0
1994 5.8 lifters clacking
Hey guys, i have a 94 e350 with a 5.8—180000 miles—-
changed the oil and used 5w30 synthetic (i know)
was driving to an emergency one night and turned off the interstate and floored it to get up ti cruising speed 75 mph
tunes cranked up and heard addition percussion(NOT) motor was ticking and bery low oil pressure
back off the accelerator to 45 mph and pressure came up a little
drove 6 miles, parked it for n hr - checked oil fine—-started it, had pressure drove 35 miles home at 55 mph—-any faster and i would lose pressure
days later installed a mechanical gauge on it, pulled dizzy and used a drill to see if i could create pressure, it pressurized to 50 lbs with the drill in reverse.
at this point i need advise
Thanks much cemoe
changed the oil and used 5w30 synthetic (i know)
was driving to an emergency one night and turned off the interstate and floored it to get up ti cruising speed 75 mph
tunes cranked up and heard addition percussion(NOT) motor was ticking and bery low oil pressure
back off the accelerator to 45 mph and pressure came up a little
drove 6 miles, parked it for n hr - checked oil fine—-started it, had pressure drove 35 miles home at 55 mph—-any faster and i would lose pressure
days later installed a mechanical gauge on it, pulled dizzy and used a drill to see if i could create pressure, it pressurized to 50 lbs with the drill in reverse.
at this point i need advise
Thanks much cemoe
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Detonation is preignition or pinging which usually only happens under load. If it is making the noise all the time then something in the valvetrain isn't right, could be a bent pushrod or maybe a lifter has failed, you won't know until it's opened up.
Thread Starter
|
New User
Joined: May 2019
Posts: 15
Likes: 0
Conanski, my buddy who is a mechanic/ chevy guy suspects a bad distributor, (not spinning the oil pump) we pulled the distributer and inspected it, looks fine to me—- but then he is a chevy guy—
I was thinking a plugged oil screen, but since i have 50 lbs oil pressure with the drill maybe i just should quit thinking! Lol
I was thinking a plugged oil screen, but since i have 50 lbs oil pressure with the drill maybe i just should quit thinking! Lol
Moderator
Joined: Jun 2003
Posts: 3,548
Likes: 71
From: Calhoun GA
How are you monitoring the oil pressure while driving...factory gauge or aftermarket, i.e. mechanical type?
Trending Topics
Cargo Master
Joined: Oct 2016
Posts: 2,738
Likes: 217
From: Northern VA
It might be hard to access, but it could be worthwhile to drop the pan and inspect the oil pump and screen as well as pan for metal crap.
What kind of filter did you use? I have heard of Fram and other cheap filters causing issues.
What kind of filter did you use? I have heard of Fram and other cheap filters causing issues.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Thread Starter
|
New User
Joined: May 2019
Posts: 15
Likes: 0
using a mechanical WIKA now—- have not started engine with this gauge, just turned pump with drill in reverse—-
before removing oil pan I was looking for alternatives
Thread Starter
|
New User
Joined: May 2019
Posts: 15
Likes: 0
used a napa when all this started, threw the old ford filter to see if any diffrrence— no diffrrence
New User
Joined: Nov 2019
Posts: 16
Likes: 0
Stethoscope the valve covers, if no stethoscope or don’t want to buy pvc pipe can be used but not as good.
Once identified what side clacking is coming from pull valve cover, put each cylinder to Tdc and shimmy rockers for excessive play.
sounds like you might have a sticking lifter or valve and possible obstruction in oil passage. I’d confirm the valvetrain first and throw in a oil cleaner see if that fixes obstruction, maybe switch to synthetic if you’re using Dino oil and plan to keep it a while.
Once identified what side clacking is coming from pull valve cover, put each cylinder to Tdc and shimmy rockers for excessive play.
sounds like you might have a sticking lifter or valve and possible obstruction in oil passage. I’d confirm the valvetrain first and throw in a oil cleaner see if that fixes obstruction, maybe switch to synthetic if you’re using Dino oil and plan to keep it a while.
Thread Starter
|
New User
Joined: May 2019
Posts: 15
Likes: 0
FIXED
Stethoscope the valve covers, if no stethoscope or don’t want to buy pvc pipe can be used but not as good.
Once identified what side clacking is coming from pull valve cover, put each cylinder to Tdc and shimmy rockers for excessive play.
sounds like you might have a sticking lifter or valve and possible obstruction in oil passage. I’d confirm the valvetrain first and throw in a oil cleaner see if that fixes obstruction, maybe switch to synthetic if you’re using Dino oil and plan to keep it a while.
Once identified what side clacking is coming from pull valve cover, put each cylinder to Tdc and shimmy rockers for excessive play.
sounds like you might have a sticking lifter or valve and possible obstruction in oil passage. I’d confirm the valvetrain first and throw in a oil cleaner see if that fixes obstruction, maybe switch to synthetic if you’re using Dino oil and plan to keep it a while.
THANKS ALL
Thread
Thread Starter
Forum
Replies
Last Post
r_reed
1948 - 1956 F1, F100 & Larger F-Series Trucks
8
Jul 15, 2008 07:09 AM
TrevorP
1987 - 1996 F150 & Larger F-Series Trucks
10
Sep 16, 2007 12:57 PM
cleanLX
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
7
May 30, 2004 09:45 AM