[tom s]

I think my H&S rockers are the sewing machine noise?Tom

[grivera]

Larry, does yours so like mine?

[Formulajones]

Originally Posted by grivera

Larry, does yours so like mine?

Kinda?? Hard to tell.

With the hood shut I don't hear it so much. It's not the sew machine noise that I'm super bothered about even though Johnson's have always been whisper quiet but it's more about one lifter that bleeds down after a few hours of sitting.

Rather than try swapping a cartridge and hope it's better and still have a sew machine I'd rather just swap in some Johnson's and fix both issues in one shot

[charlie66]

Are the Howards lifters any good? Nobody has mentioned them so I'm wondering if that just because there no good.

https://www.summitracing.com/parts/hrs-91466

[Jay S]

Originally Posted by charlie66

Are the Howards lifters any good? Nobody has mentioned them so I'm wondering if that just because there no good.

https://www.summitracing.com/parts/hrs-91466

They are made by Morel. The blead rates are usually not great. The work with ok with lazier cams. They are the only HR lifter on the market that have floating axles with snap rings like most mechanical lifters. That part is nice, but they are noisey.

[charlie66]

Originally Posted by Jay S

They are made by Morel. The blead rates are usually not great. The work with ok with lazier cams. They are the only HR lifter on the market that have floating axles with snap rings like most mechanical lifters. That part is nice, but they are noisey.

Ok thank you, I guess these are out.

[Steve C.]

Might be of interest....

Choosing cams based on hyd intensity?

https://forums.maxperformanceinc.com...ight=Intensity


.

[Torquewar]

Originally Posted by charlie66

Are the Howards lifters any good? Nobody has mentioned them so I'm wondering if that just because there no good.

https://www.summitracing.com/parts/hrs-91466

Yup been using Howard’s since 2018 with a bunch of street and track abuse .No noise . Cam is a little more aggressive than OF . Seat 160/380… shift at 6 k

[Stan Weiss]

Remember not cams are equal. You can 2 cams each i 50 degrees from 0.006" to 0.050"

Cam1 could be 25 degrees from 0.006" to 0.050" and 25 degrees from 0.050" to 0.006"

Cam2 could be 22 degrees from 0.006" to 0.050" and 28 degrees from 0.050" to 0.006"

Stan

[grivera]

OP - in case you haven't read Butler's description of all the Pontiac lifters: https://butlerperformance.com/n-1349...formation.html

[charlie66]

The only ones on butlers' site that have pin oiling are the HLJ-A-2375SE. If you know of other Johnsons that, have it please lmk .

[Formulajones]

Those are the ones I use in Pontiac engines......HLJ's

[charlie66]

Originally Posted by Formulajones

Those are the ones I use in Pontiac engines......HLJ's

What is your opinion about using 20/50 oil with these lifters (HLJ-A-2375SE)? Would it be a problem. They say their clearances are really tight between the lifter body and piston.

[Formulajones]

Originally Posted by charlie66

What is your opinion about using 20/50 oil with these lifters (HLJ-A-2375SE)? Would it be a problem. They say their clearances are really tight between the lifter body and piston.

I use 20-50 synthetic with them for years without issues.

[grivera]

Though Anecdotal, Lee Atkinson posted on Facebook that he has used the CC Evolution lifters on several builds and has been happy with them. I asked him if he's had any tickers and he said he had one, resolved by increasing preload from 1/4 to 3/4 turn.

[Formulajones]

Not sure why you would only set preload at 1/4 turn. That's barely 20 thou basically nothing.

Instructions are specific on these. 1/2 turn for a 3/8-24 stud and 3/4 turn for a 7/16-20 stud. That's right off the paperwork that comes with these lifters. It talks about wanting the plunger about or somewhere close to the middle of travel and says travel is .125"

I'm running 7/16-20 studs so mine are at 3/4 turn. I thought about going 1 full turn but when I had the covers off recently I was rotating the engine by hand and couldn't find a smoking gun. They were all tight so I just left it alone knowing id be taking it apart anyway.

[grivera]

Originally Posted by Formulajones

Instructions are specific on these. 1/2 turn for a 3/8-24 stud and 3/4 turn for a 7/16-20 stud. That's right off the paperwork that comes with these lifters. It talks about wanting the plunger about or somewhere close to the middle of travel and says travel is .125"

I'm running 7/16-20 studs so mine are at 3/4 turn. I thought about going 1 full turn but when I had the covers off recently I was rotating the engine by hand and couldn't find a smoking gun. They were all tight so I just left it alone knowing id be taking it apart anyway.

I posted about this contradiction in the instructions re: the plunger being in the center of travel. On a 7/16 stud, one full turn is .050 so it'll take 1.25 turns/.0625 to be at the center of travel. 3/4 turn is only .0375 pre-load, or 1/3 of full travel.

[Jay S]

For HR lifters generally a full synthetic or a multi grade 10w50 or a 15w50 parasynthetic will work better over a conventional 20w50. Harley’s use HLJ “SE” with 20w50 oil, but the oil operates closer to 300*. They start out cold just like anything else. 10w30 is what is recommended for most automotive HLJ slow bleed HR applications.

For thicker oil most HR valving is to restrictive when cold and they may make more racket until they warm up. If the noise doesn’t quiet down with 20w50 I’d just try a different oil or viscosity. Morel’s are one of the worst lifters with thick oil, the feed to the plunger can even be to restrictive even after it is hot. Dropping back on the viscosity usually helps quiet’s them up.

[Formulajones]

Originally Posted by grivera

I posted about this contradiction in the instructions re: the plunger being in the center of travel. On a 7/16 stud, one full turn is .050 so it'll take 1.25 turns/.0625 to be at the center of travel. 3/4 turn is only .0375 pre-load, or 1/3 of full travel.

Yup

[charlie66]

Jay, I remember you saying that, so I asked Scott at butler if they ever used 20/50 with those lifters and was expecting him to say no. But he said all the time and that you can. So that confused me a bit. That's why I was asking again and was trying to find out what formularjones was using. I like those lifters because they have the high-pressure oiling and don't mind the higher price. Butler said any of their lifers are good for what I'm doing, but I also know they sell them so why wouldn't he say that lol.