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Frequently Asked Questions

What is Valve Spring Installed Height?

CraneCams
Installed height is the dimension measured from the bottom of the valve spring retainer, where the outer valve spring locates, to the spring pocket in the cylinder head, when the valve is closed.

How Does Installed Height Affect the Spring Tension?

CraneCams
Installed height is the determining factor of what the valve spring ?Closed Tension? will be. The camshaft specification card, and the spring section of the catalog both show what the approximate tension a particular valve spring will exert if installed at a specific height. For example, spring part no. 99848 shows 105# @ 1.700?. This means that if this spring is installed at a height of 1.700? it should exert 105 pounds of tension with the valve closed. See similar questions...

I have a contract to have my shut off valve installed and I want to cancel it. What should I do?

Shut Off Valve FAQ's
You should discuss your situation directly with the plumbing company. That is a contract between you and the plumbing company. GWA recommends that you carefully consider the advantages of the shut-off valve before canceling the contract. However, GWA does recommend having the valve installed as it truly benefits the customer. See similar questions...

what height must the electric meters be installed?

Con Edison: Energy Services - faq
The requirement is that the meter be between 4-1/2 to 5-1/2 feet from its centerline opening to the final surface grade. See similar questions...

What is the importance of valve spring seat pressure?

CraneCams
Insure tight contact between the valve face and the valve seat to seal the combustion chamber and provide proper heat transfer from the valve to the cylinder head. Keep the valve from bouncing on its return to the seat. If the valve bounces, cylinder pressure (power) is lost. Repeated bouncing of the valve is like a hammering action that can result in the head of the valve deforming ("tuliping") or actually breaking from the valve stem resulting in catastrophic engine failure. See similar questions...

What is Valve Spring Open Pressure and Why is it Important?

CraneCams
Open pressure is the pressure against the retainer when the valve is at its maximum open point. Adequate open pressure is necessary to control the valve lifter as it first accelerates up the opening flank of the cam lobe and then quickly decelerates to pass over the nose of the cam which causes the valve to change direction. Inadequate open pressure will allow the lifter to "loft" or "jump" over the nose of the cam (referred to as "valve train separation", or "valve float"). See similar questions...

Will Torsion axles give me a lower deck height then spring axles on my snowmobile trailer?

Frequently asked trailer questions
Not really. While you eliminate the springs, you will still need space between the top of the tire (a good "fist") and the bottom of the deck for suspension travel---regardless of the type of axle used. I have found Torsion axles to run 30-40% more expensive then spring axles. The rubber "fingers" within the axle tube that provide the smooth ride in warm weather, get very hard and brittle in sever cold, causing a stiffer ride and premature failure. See similar questions...

What is Valve Spring Coil Bind and How Does it Relate to Spring Travel and Valve Lift?

CraneCams
When the valve spring is compressed until its coils touch one another and can travel no further, it is said to be in coil bind. To measure this you must install the retainer in the valve spring, then compress the spring until it coil binds. Now measure from the bottom side of the retainer to the bottom of the spring. This measurement is the coil bind height. See similar questions...

How Do You Change Installed Height, and What Effect Does it Have?

CraneCams
The easiest way to lessen installed height is to insert a shim in the spring pocket below the valve spring. Another method is to use a different design valve spring retainer. Retainers with a deeper dish will have more installed height; with a shallower dish, less installed height. You can also use a valve lock that is designed to change the location where the retainer is positioned on the valve stem. Longer length valves can also be used. See similar questions...

Q 12. What do you mean, "will add to the height of the valve"?

Omni Valves
A 12. The valve head will be thickened by the travel amount. This thicker valve will be inside the combustion chamber, (or you can lower the intake valve seat by the travel amount and the valve will set at the same height). You may also split the difference, however you like. We have other floating ring designs for special applications, but have found through testing that the preferred design will add to the height of your valve head. See similar questions...

What dictates the height and position of the anti siphon valve on the pump feed to the classifier?

Hydro International Wastewater
There are two reasons for raising the feed pipe above Top Water Level (TWL) in the separator. Firstly to control the flow and secondly to prevent siphoning. A detailed hydraulic calculation is required to calculate the hydraulics and size the pump. See similar questions...

How do I inflate the Spring Float using the new jet valve?

Swimways - Frequently Asked Questions
Updated versions of the spring float features a new jet valve for rapid inflation and deflation. The new valve is designed to ease the inflation and deflation process. You may inflate the spring float, by mouth or by a manual pump. When the spring float is fully inflated, quickly place your thumb over the valve and push the valve stem in completely. Air is locked inside the spring float bladder when the valve stem is completely pushed down. See similar questions...

Question: How many valves and what type of valve can be installed in an Intelligent Valve Pack?

Tecnadyne FAQs
Answer: The standard valve that is installed in the IVP's is a 4/3-way solenoid spool valve - we can install 16 of these in a single valve pack. The valves we use are made by Wandfluh and are available with flow rates from 8lpm to 60lpm. We also can install 4/2-way solenoid spool valves. We have the ability to install four proportional solenoid valves (which we feel are superior to servo valves in most subsea applications) with flow rates from 8lpm to 60lpm. See similar questions...

What is the height?

FAQ for Autism Index Sensory Swings
Both the HP and HS (at the tall height) are designed to fit in a standard 8 foot ceiling (about 7 1/2 feet). The HS has a short ceiling setting at about 6 1/2 feet. See similar questions...

I have my valve game(s) installed , how do I convert it (them) to the Steam format?

SunLit Games ::
You can use the 600kb installer and let Steam find your games itself and convert the files to the encrypted gcf files. See similar questions...

What's the maximum flange riser height in which the sensor can be installed?

Frequenctly Asked Questions
The sensor can be elevated up to a maximum of 12" high in a 6" diameter riser, 8" high in a 4" diameter riser, 6" high in a 3" diameter riser and 3" high in a 2" diameter riser. Click to view ultrasonic white paper. See similar questions...

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