Changing turkey tray and noticed this, is it a problem?
August 17th, 2011, 01:17 PM
#41
Registered User
Join Date: Mar 2008
Posts: 3,885
The Chevy Power manuals from GM used to say it was ok to re-use old lifters if they were still crowned. They could be scuffed with 600 grit. Use moly cam lube. They also said not to use new lifters on an old cam. Of course, the more spring pressure and the less time you give it to break in again (20009-2500 rpm for 1/2 hour is correct), the more chance of failure.
If I bought an entire set of lifters, I'd use the "opportunity" to put in a little "better" cam grind at the same time.
If I bought an entire set of lifters, I'd use the "opportunity" to put in a little "better" cam grind at the same time.
August 18th, 2011, 08:55 PM
#42
Banned
Join Date: Mar 2011
Location: Orlando, FL
Posts: 370
Didn't trust my advice eh?
Well here's some more good advice for ya.
Be sure to pour as much of a quart oil of the same brand and weight that you will be using in your engine into a clean butter bowl that you put as many lifters in that can stand up straight in but don't over crowd them in there.
Then use an extra pushrod you might have or buy one, and clamp a pair off vice grips down on that extra pushrod that you will not be using in your engine but be sure to rap a rag or piece of towel around the pushrod so you don't create metal shards, tiny little pieces of metal that could fall off the pushrod and land in the oil in the butter bowl or into the new lifters and clamp the vice grips down tight but not too tight that you kink the pushrod. This gives you a handle on the pushrod so you can put the pushrod down on top of each lifter that is submerged in oil in the butter bowl a good priming to get all the bubbles out of the lifter before dropping them in their lifter bores.
Then you'll be able to set preload much more accurately this way when tightening down your rocker arms. You'll never get preload right if you don't bleed all the air out of the lifters.
Since you installed a new cam, be sure to use the cam moly on the cam lobes and put some on the bottom of each lifter before dropping them in the lifter bores.
If you just put new lifters on an old cam, all you would of needed to do is pour oil on the lobes before dropping in new lifters because the cam would of been already broke in.
You would of still neeeded to bleed lifters as mentioned above but no moly would of been needed.
Well here's some more good advice for ya.
Be sure to pour as much of a quart oil of the same brand and weight that you will be using in your engine into a clean butter bowl that you put as many lifters in that can stand up straight in but don't over crowd them in there.
Then use an extra pushrod you might have or buy one, and clamp a pair off vice grips down on that extra pushrod that you will not be using in your engine but be sure to rap a rag or piece of towel around the pushrod so you don't create metal shards, tiny little pieces of metal that could fall off the pushrod and land in the oil in the butter bowl or into the new lifters and clamp the vice grips down tight but not too tight that you kink the pushrod. This gives you a handle on the pushrod so you can put the pushrod down on top of each lifter that is submerged in oil in the butter bowl a good priming to get all the bubbles out of the lifter before dropping them in their lifter bores.
Then you'll be able to set preload much more accurately this way when tightening down your rocker arms. You'll never get preload right if you don't bleed all the air out of the lifters.
Since you installed a new cam, be sure to use the cam moly on the cam lobes and put some on the bottom of each lifter before dropping them in the lifter bores.
If you just put new lifters on an old cam, all you would of needed to do is pour oil on the lobes before dropping in new lifters because the cam would of been already broke in.
You would of still neeeded to bleed lifters as mentioned above but no moly would of been needed.
August 20th, 2011, 10:32 PM
#43
Registered User
Thread Starter
Join Date: Dec 2009
Location: Fort Lauderdale, FL
Posts: 215
Thanks Bruce,
New lifters, no new cam, and did as you advised as far as prepping the lifters before installing.
Thanks again.
All buttoned up...
New lifters, no new cam, and did as you advised as far as prepping the lifters before installing.
Thanks again.
All buttoned up...
Didn't trust my advice eh?
Well here's some more good advice for ya.
Be sure to pour as much of a quart oil of the same brand and weight that you will be using in your engine into a clean butter bowl that you put as many lifters in that can stand up straight in but don't over crowd them in there.
Then use an extra pushrod you might have or buy one, and clamp a pair off vice grips down on that extra pushrod that you will not be using in your engine but be sure to rap a rag or piece of towel around the pushrod so you don't create metal shards, tiny little pieces of metal that could fall off the pushrod and land in the oil in the butter bowl or into the new lifters and clamp the vice grips down tight but not too tight that you kink the pushrod. This gives you a handle on the pushrod so you can put the pushrod down on top of each lifter that is submerged in oil in the butter bowl a good priming to get all the bubbles out of the lifter before dropping them in their lifter bores.
Then you'll be able to set preload much more accurately this way when tightening down your rocker arms. You'll never get preload right if you don't bleed all the air out of the lifters.
Since you installed a new cam, be sure to use the cam moly on the cam lobes and put some on the bottom of each lifter before dropping them in the lifter bores.
If you just put new lifters on an old cam, all you would of needed to do is pour oil on the lobes before dropping in new lifters because the cam would of been already broke in.
You would of still neeeded to bleed lifters as mentioned above but no moly would of been needed.
Well here's some more good advice for ya.
Be sure to pour as much of a quart oil of the same brand and weight that you will be using in your engine into a clean butter bowl that you put as many lifters in that can stand up straight in but don't over crowd them in there.
Then use an extra pushrod you might have or buy one, and clamp a pair off vice grips down on that extra pushrod that you will not be using in your engine but be sure to rap a rag or piece of towel around the pushrod so you don't create metal shards, tiny little pieces of metal that could fall off the pushrod and land in the oil in the butter bowl or into the new lifters and clamp the vice grips down tight but not too tight that you kink the pushrod. This gives you a handle on the pushrod so you can put the pushrod down on top of each lifter that is submerged in oil in the butter bowl a good priming to get all the bubbles out of the lifter before dropping them in their lifter bores.
Then you'll be able to set preload much more accurately this way when tightening down your rocker arms. You'll never get preload right if you don't bleed all the air out of the lifters.
Since you installed a new cam, be sure to use the cam moly on the cam lobes and put some on the bottom of each lifter before dropping them in the lifter bores.
If you just put new lifters on an old cam, all you would of needed to do is pour oil on the lobes before dropping in new lifters because the cam would of been already broke in.
You would of still neeeded to bleed lifters as mentioned above but no moly would of been needed.
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