how to check for a collapsed hydraulic lifter?.......
06-24-2001, 12:53 AM
#1
Member
Thread Starter
Join Date: Dec 2000
Location: WPG MB Canada
Posts: 365
Likes: 0
Received 0 Likes
on
0 Posts
how to check for a collapsed hydraulic lifter?.......
Hey all. I have a loud RATTLE, not tick when the engine is completely warm (kinda beat on her too hard at the dragstrip 
). The consensus seems to be that it's some sort of valvetrain noise. What I want to know is how can I check for a collapsed lifter? Can I check with just the valvecovers off? I plan on changing the intake. Is there anything visual to look for on the lifter? My engine is still like new, so I don't want to replace the cam and ALL the lifters (big $$$ in Canada). I just want to be POSITIVE I change the right lifter before I put the engine back together..
Thanks
------------------
85 Berlinetta Iroc exterior NOW 454 powered, 4.10 gears, 275/60/15 Hoosier Quicktimes and a PILE of other goodies..........YES, it's street driven!
check it out at http://www.bsronline.net/members/rob/rob_specs.html
). The consensus seems to be that it's some sort of valvetrain noise. What I want to know is how can I check for a collapsed lifter? Can I check with just the valvecovers off? I plan on changing the intake. Is there anything visual to look for on the lifter? My engine is still like new, so I don't want to replace the cam and ALL the lifters (big $$$ in Canada). I just want to be POSITIVE I change the right lifter before I put the engine back together..Thanks
------------------
85 Berlinetta Iroc exterior NOW 454 powered, 4.10 gears, 275/60/15 Hoosier Quicktimes and a PILE of other goodies..........YES, it's street driven!
check it out at http://www.bsronline.net/members/rob/rob_specs.html
06-24-2001, 07:45 AM
#2
TGO Supporter
pull the valve cover and look for a rocker that isn't getting oiled, not moving up and down as much as the others.
------------------
ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
------------------
ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
06-24-2001, 12:15 PM
#3
Member
Thread Starter
Join Date: Dec 2000
Location: WPG MB Canada
Posts: 365
Likes: 0
Received 0 Likes
on
0 Posts
I figured that. Only thing is it does when COMPLETELY warm and at around 2000 RPM. So with a high yolume oil pump it's going to be hard to see which one isn't getting oil/ or loose. Know anything to check visisual on the lifter? Like I said, jusy want to be 110% I get the right one...
------------------
85 Berlinetta Iroc exterior NOW 454 powered, 4.10 gears, 275/60/15 Hoosier Quicktimes and a PILE of other goodies..........YES, it's street driven!
check it out at http://www.bsronline.net/members/rob/rob_specs.html
------------------
85 Berlinetta Iroc exterior NOW 454 powered, 4.10 gears, 275/60/15 Hoosier Quicktimes and a PILE of other goodies..........YES, it's street driven!
check it out at http://www.bsronline.net/members/rob/rob_specs.html
06-24-2001, 10:44 PM
#4
Member
Join Date: Dec 2000
Location: Chesterfield, VA
Posts: 408
Likes: 0
Received 0 Likes
on
0 Posts
Car: '86 IROC, black and sharp
Engine: 305 tpi, bone stock
Transmission: 700r4
Axle/Gears: 3.42 pos w/rear db
Hey, I had the same problem on a Nova once. Couldn't figure out which lifter was making the noise. While adjusting the valves (engine hot and running) I found it. While tightening nut on top of rocker arm the noise went away and then slowly returned. I guess you'll still have to remove the intake once you find it, to replace it anyway.
------------------
Z's r Best
------------------
Z's r Best
Thread
Thread Starter
Forum
Replies
Last Post
ambainb
Camaros for Sale
11
04-25-2016 09:21 PM
C409
Engine/Drivetrain/Suspension Parts for Sale
5
01-21-2016 08:29 PM
C409
Engine/Drivetrain/Suspension Parts for Sale
5
09-23-2015 04:30 PM
