Lifter tech tip
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,900
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From: melbourne florida
2023 C3 of the Year Finalist - Modified
Lifter tech tip
It seems there is always one more thing to check with flat tappets I heard of a recent you tube video with the suggestion that some new lifters may come through without enough crown.
Put the base on a dead flat surface and make sure it rocks a little bit. It won't be much But there should be some. If you have even one without taper it will take out your cam.
Put the base on a dead flat surface and make sure it rocks a little bit. It won't be much But there should be some. If you have even one without taper it will take out your cam.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
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From: Cool Northern Michigan
(Please edit this post and correct your information. Eboggs_JKVL)
Never heard that one. The base of the lifter is "Concave" anyway. Not convex. You will see or feel nothing placing it on a flat surface.
Google: pictures of hydraulic lifter base.
(Please edit this post and correct your information. Eboggs_JKVL)
Never heard that one. The base of the lifter is "Concave" anyway. Not convex. You will see or feel nothing placing it on a flat surface.
Google: pictures of hydraulic lifter base.
(Please edit this post and correct your information. Eboggs_JKVL)
Last edited by eboggs_jkvl; Sep 7, 2020 at 10:06 AM. Reason: Convex & concave reversed.
Burning Brakes
Joined: Jun 2020
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Likes: 113
Never heard that one. The base of the lifter is "Concave" anyway. Not convex. You will see or feel nothing placing it on a flat surface.
Google: pictures of hydraulic lifter base. Its the edge or rim of the lifter that rides the cam lobe and rotates accordingly in its bore.
Google: pictures of hydraulic lifter base. Its the edge or rim of the lifter that rides the cam lobe and rotates accordingly in its bore.
It seems there is always one more thing to check with flat tappets I heard of a recent you tube video with the suggestion that some new lifters may come through without enough crown.
Put the base on a dead flat surface and make sure it rocks a little bit. It won't be much But there should be some. If you have even one without taper it will take out your cam.
Put the base on a dead flat surface and make sure it rocks a little bit. It won't be much But there should be some. If you have even one without taper it will take out your cam.
correct. Convex. you can also place two end-to-end, hold them up to light and should see a faint hourglass shape through the interface.I've Always checked em, new or used.
Is my vette stock?? HAHA
Joined: Oct 2015
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From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
I bought an old engine for the block and it had a couple of flat cam lobes and a bunch of concave lifters. I saved some of those parts just for conversation pieces
Last edited by Rescue Rogers; Sep 2, 2020 at 08:06 PM.
Dr. Detroit
Joined: Mar 2012
Posts: 10,090
Likes: 4,015
From: New Braunfels Texas
It seems there is always one more thing to check with flat tappets I heard of a recent you tube video with the suggestion that some new lifters may come through without enough crown.
Put the base on a dead flat surface and make sure it rocks a little bit. It won't be much But there should be some. If you have even one without taper it will take out your cam.
Put the base on a dead flat surface and make sure it rocks a little bit. It won't be much But there should be some. If you have even one without taper it will take out your cam.
Jebby
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,900
Likes: 833
From: melbourne florida
2023 C3 of the Year Finalist - Modified
Is that where it came from? I just heard it was on you tube. I'll check it out. Some of his stuff is pretty good but I've rolled my eyes a few times.. I'll look for it.
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Dr. Detroit
Joined: Mar 2012
Posts: 10,090
Likes: 4,015
From: New Braunfels Texas
Auto Parts counter people went full retail (Oil and Wiper Blades) 25 years ago.......if anyone expects that the average counterman is going to hold himself to high standards is a gluten for punishment.
I can't even purchase the lifters I use at an auto parts store.
Jebby
Last edited by Jebbysan; Sep 4, 2020 at 07:29 AM.
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,900
Likes: 833
From: melbourne florida
2023 C3 of the Year Finalist - Modified
You are right,, I thought it sounded stupid to not get lifters from your cam company. I certainly wouldn't go to AutoZone.
He states there are 2 manufacturers of lifters, most off the shelf cams aren't ground by the cam companies either they are mass produced. Which is why I went to an small company that grinds them one at a time. And I'm pretty sure he gave me some shubeck lifters, even though he didn't charge me nearly what they cost
He states there are 2 manufacturers of lifters, most off the shelf cams aren't ground by the cam companies either they are mass produced. Which is why I went to an small company that grinds them one at a time. And I'm pretty sure he gave me some shubeck lifters, even though he didn't charge me nearly what they cost