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Author Topic: Beehive Valve Springs  (Read 2445 times)

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MCE Performance

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Re: Beehive Valve Springs
« Reply #30 on: January 14, 2018, 01:48:22 PM »

Don't give up yet.  ;D
I've seen more dual spring failures in the past year than I have beehive. Most failures can be traced back to something other than the spring.


I'll go along with that. Beehive failures are not as common, but almost always catastrophic.
Dual spring failures OTOH, don't destroy the motor in most cases. A bent valve is usually the
worst case but that can go either way too. 
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wfolarry

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Re: Beehive Valve Springs
« Reply #31 on: January 14, 2018, 02:52:00 PM »

The stock beehives would break the retainer.
All of the beehive broken springs I have seen never lost a valve. Some were bent. Some weren't. None of them destroyed a motor.
The worst dual spring IMO are the ones that use a flat wire damper. Dual springs with an interference fit are better.
Some broken springs. Broken spring seats. No disasters.
And as John mentioned before a lot of them had the wrong shims. Springs dancing around like strippers at the tittie bar.
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MCE Performance

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Re: Beehive Valve Springs
« Reply #32 on: January 14, 2018, 08:14:58 PM »

I've seen Two beehive failures. One was a disaster, one was a minor disaster. lol

Tittie bars rule.
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Para Bellum

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Re: Beehive Valve Springs
« Reply #33 on: January 15, 2018, 02:29:51 AM »

Tittie bars rule.
And Dallas has them, with some absolutely gorgeous women. (picking jaw off floor and wiping up drool)
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MCE Performance

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Re: Beehive Valve Springs
« Reply #34 on: January 15, 2018, 09:18:27 AM »

And Dallas has them, with some absolutely gorgeous women. (picking jaw off floor and wiping up drool)
We have some of the finest babes in the country, allot of them!

Before the age of "PC" (when I was a manager) I used to hold my monthly staff meetings at BabyDolls.
Allot of the engineers in other departments wanted to work in my group. lol (I knew how to "motivate"
employees)
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HD Street Performance

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Re: Beehive Valve Springs
« Reply #35 on: January 15, 2018, 05:50:47 PM »

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MCE Performance

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Re: Beehive Valve Springs
« Reply #36 on: January 15, 2018, 09:13:16 PM »

Beehive springs are great, until one fails. Then they're not so great. Everything is a tradeoff. The factory Harley springs
seem to hold up pretty well. Don't know why though.
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HD Street Performance

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Re: Beehive Valve Springs
« Reply #37 on: January 16, 2018, 09:16:54 AM »

They break too. I have had a few retainers split too. Fortunately the damage was minimal and at low speed.
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MCE Performance

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Re: Beehive Valve Springs
« Reply #38 on: January 16, 2018, 12:47:28 PM »

They break too. I have had a few retainers split too. Fortunately the damage was minimal and at low speed.
yep. nothing is fool proof. The Harley springs are pretty good though.
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prodrag1320

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Re: Beehive Valve Springs
« Reply #39 on: January 16, 2018, 06:18:17 PM »

They break too. I have had a few retainers split too. Fortunately the damage was minimal and at low speed.

I did have a customer report back that a stock retainer broke on a set of street port heads,2.5 years after we did the heads.wanted me to cover it.sorry,not gunna happen

fastfreddy

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Re: Beehive Valve Springs
« Reply #40 on: January 16, 2018, 06:31:18 PM »

I did have a customer report back that a stock retainer broke on a set of street port heads,2.5 years after we did the heads.wanted me to cover it.sorry,not gunna happen
dang .... nobody will warranty them HD parts  :nixweiss:
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Re: Beehive Valve Springs
« Reply #41 on: January 28, 2018, 01:24:44 PM »

Ferrea valves has a very informative video of Spintron fixture generated images of spring surge, rocker arm, and pushrod failures, and is totally recommended viewing for engine builders! My favorites are: spring surge so violent that the spring actually lifts from its seat, and that is while the spring is at max lift! Early attempts at manufacturing carbon fiber pushrods that will function flawlessly at 9300 RPM, but fail catastrophically at about 6800 rpm, (used in NASCAR engines, they failed during caution laps, not racing!), they refer to that resonance phenomina as a "fuss point". That video starts out at 9200 rpm and slowing down the rpm. The carbon fiber pushrod explodes into dust and filament at about 6800! Fuss point, I guess!  That's why I always inspect used springs upon removal. I have seen springs with shiny marks on the coils from touching, but the installed height allows for higher lifts by more than .100".  We are all still learning.  The video may be available from the sales staff. My copy is on VHS!!! It is required viewing for my staff.   TIMINATOR
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johnsachs

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Re: Beehive Valve Springs
« Reply #42 on: January 28, 2018, 05:00:06 PM »

You also need to inspect the valve stem above the keeper groove. The 5:00 0'clock and 11:00 o'clock positions for keeper movement. ;)
John
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TorqueInc

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Re: Beehive Valve Springs
« Reply #43 on: February 14, 2018, 08:36:39 AM »

I brought up the beehive issues a couple years ago.....and was told I was FOS🤔

The s&s springs even look like offshore units

Comp seems to fixed all the broken spring issues

I'll stick with the small rev wound duals
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johnsachs

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Re: Beehive Valve Springs
« Reply #44 on: February 15, 2018, 06:28:28 PM »

I brought up the beehive issues a couple years ago.....and was told I was FOS🤔

The s&s springs even look like offshore units

Comp seems to fixed all the broken spring issues

I'll stick with the small rev wound duals
Most of the S&S beehives come from AV&V.
I'm a dual spring guy when it becomes my choice. :huepfenlol2:
John
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