Damage to engine (pics)
Originally Posted by white2001s10
Looks to me like one plunger is up against the clip and the other is not.
If it is collapsed, then if happened before or after the P/V contact is just speculation. One collapsed lifter will not cause P/V contact on all the cylinders though, so it's pretty much irrellevent.
If it is collapsed, then if happened before or after the P/V contact is just speculation. One collapsed lifter will not cause P/V contact on all the cylinders though, so it's pretty much irrellevent.
From reading a thread in the Advanced forum, I learned a bit about the dynamics that occur within a hydrolic lifter. It was said that during normal operation that a lifter's plunger can travel around 1/8" within the lifter body.
https://ls1tech.com/forums/showthrea...ighlight=morel
I'm not sure on this but I doubt it is desirable for the lifter plunger to reach high enough within the lifter body such that it contacts the retainer clip. (As shown on the lifter on the right of the photo.) I would think that a lifter with a plunger that is all the way up has reached it's limit in assisting with valve control. Can anyone comment on that? I very well could be mistaken.
OTOH, for all I know, after the car is tuned off and/or the lifter is removed from the motor, the plunger within the lifter body may move on it's own. (I suspect it would bleed down if anything.) So in other words, I have no clue if any conclusion can be drawn from the photo showing the lifters.
Last edited by ShevrolayZ28; Jun 4, 2006 at 02:26 PM.
Originally Posted by ShevrolayZ28
I tend to agree, cuz wouldn't a collapsed lifter be associated with reducing, not increasing, the lift? If anything the lifter on the right might be suspect but I don't know.
From reading a thread in the Advanced forum, I learned a bit about the dynamics that occur within a hydrolic lifter. It was said that during normal operation that a lifter's plunger can travel around 1/8" within the lifter body.
https://ls1tech.com/forums/showthrea...ighlight=morel
I'm not sure on this but I doubt it is desirable for the lifter plunger to reach high enough within the lifter body such that it contacts the retainer clip. (As shown on the lifter on the right of the photo.) I would think that a lifter with a plunger that is all the way up has reached it's limit in assisting with valve control. Can anyone comment on that? I very well could be mistaken.
OTOH, for all I know, after the car is tuned off and/or the lifter is removed from the motor, the plunger within the lifter body may move on it's own. (I suspect it would bleed down if anything.) So in other words, I have no clue if any conclusion can be drawn from the photo showing the lifters.
From reading a thread in the Advanced forum, I learned a bit about the dynamics that occur within a hydrolic lifter. It was said that during normal operation that a lifter's plunger can travel around 1/8" within the lifter body.
https://ls1tech.com/forums/showthrea...ighlight=morel
I'm not sure on this but I doubt it is desirable for the lifter plunger to reach high enough within the lifter body such that it contacts the retainer clip. (As shown on the lifter on the right of the photo.) I would think that a lifter with a plunger that is all the way up has reached it's limit in assisting with valve control. Can anyone comment on that? I very well could be mistaken.
OTOH, for all I know, after the car is tuned off and/or the lifter is removed from the motor, the plunger within the lifter body may move on it's own. (I suspect it would bleed down if anything.) So in other words, I have no clue if any conclusion can be drawn from the photo showing the lifters.
