Stuck LS7 lifter...
Stuck LS7 lifter... Putting in a new set of LS7 lifters and one of them is completely stuck won't move up or down at all. I had the heads back on the car and couldn't get it to spin to line up with the lifter tray. Now I cannot get the lifter to come back out the top. I now have the heads off and the cam out as well and it will not move up or down. What else can I do? And is there anything else I can do to catch it from dropping in the pan if I try and push it out the bottom?
Not sure I follow, you installed a brand new lifter and it went part way in and stopped? What did you do at that point, did you try to force it down? Also, which cylinder?
Just trying to understand the situation.
Just trying to understand the situation.
TECH Addict
Joined: Sep 2009
Posts: 2,481
Likes: 5
From: PA/MD
Could also cut a peices of poster board and slide it in the cam bore kinda like a half moon shaped net to catch it....then slide the magnet in to pull the lifter out after you knock it down on there
The lifters were soaked in oil for at least a half hour. I was putting them in there normally and it stopped maybe halfway down. I pushed down on the lifter and it wouldn't move anymore. I tried to take it back out to inspect it but it won't budge either way now. I can no longer push on it by hand. I'm guessing I have to tap it through the bottom with something?
Trending Topics
It was lubed plenty. I had lubed the lifter as well as the bore and all of the lifters went in perfect except for this one. It was giving me all sorts of hell just even getting in. So once I got it in and it felt like it was okay and not jammed - I pressed down. Now I can no longer move it nor spin it to line up with the lifter tray. Either way I'm going to be trying to remove it and will definitely not be using that one again. Rather just go and get a new one. Although I need to get this one out first and it's definitely not budging.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo Tried that last night. I put a rag over the lifter and tried to grab it with some vice grips and twist - no dice. I'm probably going to see if I can get my hands on one of those lifter holders and try a long magnet and tap it through the bottom. I just need it out at this point.
I'd be afraid to push it through in fear of opening/damaging the lifter bore. Obviously there is either a problem with the bore or the lifter. Since you pulled a set of lifters out with no problem, my guess is that one lifter is over sized. I would do everything I could to pull it back out the way it went in but that's just me.
I'd be afraid to push it through in fear of opening/damaging the lifter bore. Obviously there is either a problem with the bore or the lifter. Since you pulled a set of lifters out with no problem, my guess is that one lifter is over sized. I would do everything I could to pull it back out the way it went in but that's just me.
Heat shrink gun, maybe even a hair dryer on full blast, blowing on the block surface @ the lifter bore to heat it up and expand it a bit. And one of those gel ice-pack things directly on the lifter top.
You don't want to gouge up the lifter bore trying to force it out.
You don't want to gouge up the lifter bore trying to force it out.
Heat shrink gun, maybe even a hair dryer on full blast, blowing on the block surface @ the lifter bore to heat it up and expand it a bit. And one of those gel ice-pack things directly on the lifter top.
You don't want to gouge up the lifter bore trying to force it out.
You don't want to gouge up the lifter bore trying to force it out.
I have some pb blaster I can use as well as WD40. I also have a heat gun so I will try that..but freeze the lifter with compressed air upside down at the same time that I heat the block;
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
Hmmm, I'm wondering how hard you pushed it down for it to be stuck like this...?
Did you notice anything unusual about that lifter before you put it in, or about the old lifter that came out of there...?
Did you notice anything unusual about that lifter before you put it in, or about the old lifter that came out of there...?