lifters
Those travel limiters and the extreme preload on the lifters may be causing
your noise. 1.5 flats is only about .007, so not much room for the hydraulics of the lifter to buffer the valve spring tension. Remember that a typical piece of copy paper is nearly .005 in thickness. Heck, I am no mechanic, but you are just this side of running solid lifters with that setup. Maybe run them for a while then go back and remove the travel limiters, set preload from no lash down to .100 (that's about 20 flats) and try it then. Maybe it will soften and tone down the noise quite a bit.
your noise. 1.5 flats is only about .007, so not much room for the hydraulics of the lifter to buffer the valve spring tension. Remember that a typical piece of copy paper is nearly .005 in thickness. Heck, I am no mechanic, but you are just this side of running solid lifters with that setup. Maybe run them for a while then go back and remove the travel limiters, set preload from no lash down to .100 (that's about 20 flats) and try it then. Maybe it will soften and tone down the noise quite a bit.
I have been impressed with the new Gatermn lifter.
Where do you buy them online? Unless I missed it, Gaterman doesn't sell them on their website
Where do you buy them online? Unless I missed it, Gaterman doesn't sell them on their website
Seasoned HDF Member
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
I already had a set of limiters and, on my last bike with 26's, I had some lifter bleed down hot start issues. Thought I'd give them a try with the 48's. FWIW, S&S recommends bottoming out on the travel limiter and then backing off 6 flats (32 too) or 1 full turn. I did that and had horrible clatter. On the advice of some tech guys on HTT, I am trying the 1 1/2 flats off the bottom for now. If it doesn't quiet down, I'll pull the limiters.
I already had a set of limiters and, on my last bike with 26's, I had some lifter bleed down hot start issues. Thought I'd give them a try with the 48's. FWIW, S&S recommends bottoming out on the travel limiter and then backing off 6 flats (32 too) or 1 full turn. I did that and had horrible clatter. On the advice of some tech guys on HTT, I am trying the 1 1/2 flats off the bottom for now. If it doesn't quiet down, I'll pull the limiters.
Seasoned HDF Member
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
Are the lifters you have the new GP 1023's that they just released in the last two weeks? If so I think I would try them without limiters and follow the preload adjustment in this picture below. S&S says that their pushrods are 32 tpi, so the bottom adjustment is what you want. Here is a link to S&S on adjusting their pushrods. http://www.sscycle.com/feature/featureview.php?s_id=38
Last edited by stro1965; Apr 1, 2013 at 05:40 AM.
Road Warrior
Joined: May 2009
Posts: 1,537
Likes: 4
From: The Great River Road, Wisconsin
It's been graciously answered.
If anyone has ever slid a new cam in a small block chevy (or any other with hydraulic lifters) they know. Until they fill with oil and get "pumped up" they
can tick and rattle. They have a spring to maintain a height, and rely on oil pressure to finish out their overall dimension, and pressure, to overcome the valve springs.
Given everything I had read about the cheap lifters the MoCo has been using,
I figure if they survive the warranty period, I will replace them with something better when new cams go in.
Cheap insurance, after the warranty expires. I wont give the MoCo a reason do deny a warranty claim if it were to happen, so I am waiting until then.
If anyone has ever slid a new cam in a small block chevy (or any other with hydraulic lifters) they know. Until they fill with oil and get "pumped up" they
can tick and rattle. They have a spring to maintain a height, and rely on oil pressure to finish out their overall dimension, and pressure, to overcome the valve springs.
Given everything I had read about the cheap lifters the MoCo has been using,
I figure if they survive the warranty period, I will replace them with something better when new cams go in.
Cheap insurance, after the warranty expires. I wont give the MoCo a reason do deny a warranty claim if it were to happen, so I am waiting until then.
Road Warrior
Joined: May 2008
Posts: 1,802
Likes: 2
From: Salt Lake City, UT. Dushore, Pa.
Prior to this thread I started one asking who used the Chevy lifters and folks were recommending the 850-1 fro comp which I ordered last week, now it's Gaterman 1023's that are the best. How much are the Gaterman's and where does one order them? One guy replied he had 70k miles on the comp lifters with no problems. What cam are u using?
Prior to this thread I started one asking who used the Chevy lifters and folks were recommending the 850-1 fro comp which I ordered last week, now it's Gaterman 1023's that are the best. How much are the Gaterman's and where does one order them? One guy replied he had 70k miles on the comp lifters with no problems. What cam are u using?
http://www.parts4powertoys.com/en/products/details/8--7
Road Warrior
Joined: Apr 2011
Posts: 1,443
Likes: 9
From: North Carolina
Prior to this thread I started one asking who used the Chevy lifters and folks were recommending the 850-1 fro comp which I ordered last week, now it's Gaterman 1023's that are the best. How much are the Gaterman's and where does one order them? One guy replied he had 70k miles on the comp lifters with no problems. What cam are u using?
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Seasoned HDF Member
Joined: Mar 2007
Posts: 66,948
Likes: 4,573
From: TOAK western branch
the reason you dont get too many people who have experience in HyLift Johnson lifters is because most people on this forum follow the crowd. i love the Johnson lifters, and they're half the price of the Woods with equal or better performance. but what do i know? i just build bikes for a living.
http://www.parts4powertoys.com/en/products/details/8--7
http://www.parts4powertoys.com/en/products/details/8--7
Intermediate
Joined: Jul 2011
Posts: 34
Likes: 0
From: Colorado
I just changed out my 255 cams with hd lifters this weekend, three out of four lifters had flaking of the roller, and one had a groove worn in to match the one on the cam lobe. Put these in when the bike was new. Had 20k on this set up.