Howard's edm lifter adjustment

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khuebner250

khuebner250

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Quick question. I have a purple .557 Mopar shaft running Howard's edm solid lifters. I need to set lash. However the lifters have a bit of up and down movement between the snap ring retainer and pushrod seat. Lash will be .024 and .028. but I don't know if I need to adjust for the up and down play? I also cannot find any instructions anywhere.

What say you?
 
I've had 2 sets of their lifters and have not seen what you describe. A solid lifter is solid...
Did they change the design recently?
 
There's just a tiny bit of play. But when the lifter it's filled it pushes up a bit.

IMG_20190613_213635863.jpg
 
Have a set in use on a 410 small block with hughes 6468 cam and never seen any movement either.

Just had another set delivered tonight....but will not use them for weeks.
 
70aarcuda said:
Have a set in use on a 410 small block with hughes 6468 cam and never seen any movement either.

Just had another set delivered tonight....but will not use them for weeks.
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Ant chance to look at the ones you got tonight?
 
as Rusty said...i just set the lash cold at .012 intake and .014 exhaust....if there is any movement in the lifter...it is part of the lash...
 
You set the lash to the spec listed by the cam manufacturer. Mopar Performance solid cams are designed with a MUCH wider lash than modern cams. My 528 called for .028/.032 !
 
Kern Dog said:
You set the lash to the spec listed by the cam manufacturer. Mopar Performance solid cams are designed with a MUCH wider lash than modern cams. My 528 called for .028/.032 !
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The .557 also calls for 28/32. But I took out .004 for aluminum heads and cold lash.
 
khuebner250 said:
The .557 also calls for 28/32. But I took out .004 for aluminum heads and cold lash.
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You can take more than that out. That's too damn loose. I'd do .020/.024 and then check them hot. Take the hot measurement and subtract the cold measurement. That's the amount you cold lash so the hot lash is .020/.024 as there is no reason to lash them that loose. It just makes noise and beats the piss out of stuff.

Luckily, those lobes have a pretty slow lash ramp so you can close the lash down quite a bit before you have issues.
 
yellow rose said:
You can take more than that out. That's too damn loose. I'd do .020/.024 and then check them hot. Take the hot measurement and subtract the cold measurement. That's the amount you cold lash so the hot lash is .020/.024 as there is no reason to lash them that loose. It just makes noise and beats the piss out of stuff.

Luckily, those lobes have a pretty slow lash ramp so you can close the lash down quite a bit before you have issues.
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Your saying 20/24 cold. Then take the hot and adjust so the hot is 20/24? Sorry it's late and I'm 3 drinks in.
 
yellow rose said:
You can take more than that out. That's too damn loose. I'd do .020/.024 and then check them hot. Take the hot measurement and subtract the cold measurement. That's the amount you cold lash so the hot lash is .020/.024 as there is no reason to lash them that loose. It just makes noise and beats the piss out of stuff.

Luckily, those lobes have a pretty slow lash ramp so you can close the lash down quite a bit before you have issues.
Click to expand...
So.....The engineers call for .028 intake and .032 exhaust, guys that are engineers but since some random guy on the internet says something different, I'm supposed to trust him?
I've ran this lash for 4 years. A few months back I decided to check the lash. Guess what? It was real close to spec, I'm talking not even .002 different from where I set it the first time.
I have set mine cold every time with .006 LESS lash since the aluminum heads expansion rate is different than cast iron.
 
Many of people from the internet have run those MP cams with tighter lash....I do all the time...In fact i set them a little tighter then what YR has said.......

cold you want them .006 tighter then hot if you are running aluminum heads...
 
khuebner250 said:
Your saying 20/24 cold. Then take the hot and adjust so the hot is 20/24? Sorry it's late and I'm 3 drinks in.
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No. I'm saying set them cold to .020/.024 or even a bit tighter. Since everything grows when it hot, it will be running with more than .020/.024 hot. So check them hot. Let's say you are at .022/.026 hot. Subtract the cold number from that and that's how much tighter you need you need to be cold to get the hot lash correct.

Using the example above, you'd then set the lash to .018/.022 cold to get .020/.024 hot. Does that make sense?
 
Kern Dog said:
So.....The engineers call for .028 intake and .032 exhaust, guys that are engineers but since some random guy on the internet says something different, I'm supposed to trust him?
I've ran this lash for 4 years. A few months back I decided to check the lash. Guess what? It was real close to spec, I'm talking not even .002 different from where I set it the first time.
I have set mine cold every time with .006 LESS lash since the aluminum heads expansion rate is different than cast iron.
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I wouldn't listen to me. I'd go by the engineer. But that's just me.

The lash ramps on those cams is forever long. There is no reason to run them that loose. Ever.

You can do what you want.
 
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70aarcuda said:
Many of people from the internet have run those MP cams with tighter lash....I do all the time...In fact i set them a little tighter then what YR has said.......

cold you want them .006 tighter then hot if you are running aluminum heads...
Click to expand...

That's the advantage of any solid lashed cam. You can tylor the lash to suit your needs as to how the engine runs. It works a little bit with hydraulic preload too.
 
khuebner250 said:
Part# 91718
Mechanical Flat Tappet Direct Lube Extreme Duty Lifters; AMC / Chrysler V8 Howards Cams 91718 | Howards Cams
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I have those same lifters in my current motor. I called Howards about a month ago for a similar reason, my pushrods felt slightly loose in the lifter cup (VERY slight...probably all in my head). For reassurance I asked them what size pushrods these lifters were made for, and they said they will work with 5/16 or 3/8 pushrod tips. I have 5/16 Smith Brothers oil through pushrods, and they seem to be fine (car runs great, no excess noise).

Anyway, the whole point to that was what size pushrods are you using, 5/16 or 3/8? My guess is the 3/8 is a better fit.
 
flyfish said:
I have those same lifters in my current motor. I called Howards about a month ago for a similar reason, my pushrods felt slightly loose in the lifter cup (VERY slight...probably all in my head). For reassurance I asked them what size pushrods these lifters were made for, and they said they will work with 5/16 or 3/8 pushrod tips. I have 5/16 Smith Brothers oil through pushrods, and they seem to be fine (car runs great, no excess noise).

Anyway, the whole point to that was what size pushrods are you using, 5/16 or 3/8? My guess is the 3/8 is a better fit.
Click to expand...

5/16 smith Bros
 
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