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Adjusting valve lashes on your engine just became Easier, Faster, Safer, Consistent and with Precision by using a new tool called ValveTrax®!


Frequently Asked Questions

 1.  If I give you the year, make, and model of my vehicle, can you send me the right ValveTrax Tape?

 2.  Will the ValveTrax Tape work with any camshaft having different Intake Centerlines and Lobe Separation Angles?

 3.  Will the ValveTrax Tape work with VCT and VVT engines?

 4.  How long and wide are your ValveTrax Tape?

 5.  What if I cannot measure the diameter of the balancer or pulley for whatever reason?

 6.  What if there is a small gap or overlap with the ValveTrax Tape once I receive it?

 7.  Does your ValveTrax Tape help the user find Top Dead Center of the #1 cylinder?

 8.  Will the ValveTrax Tape give me the required values of the valve lash settings?

 9.  Using your ValveTrax Tape, how quickly can the valve lashes be adjusted with your accuracy?

 10.  How did you come up with the name ValveTrax?

 11. Once I submit an order, how fast are your ValveTrax Tapes shipped?

 12. What if my Firing Order or my balancer size is not in your lists?

 13. Why do I need to know what the Reduction Ratio is?

 14. What is Crankshaft Offset?

 15. If I spill gasoline or anything else on the ValveTrax Tape, will that damage the tool?





 1.   No.  A lot of the same years, makes and models can have many different engines. Also, many people will take one breed of vehicle and use another breed of engine, an example would be a hobbyist will install a Chevy engine in a Ford truck, or a farmer installs a Chrysler automobile engine in his Chase tractor for “tractor-pulling”, etc., etc.  Therefore, it is much easier for us, and without error, to obtain the actual characteristics of your engine; Firing Order, Balancer size, Crankshaft Offset, etc. to ensure you get the right too.

 2.   Yes.  All of my ValveTrax Tapes have a graphical indicator for the #1 cylinder Intake Centerline that can be anywhere between 100 to 120 degrees, and the Lobe Separation Angle can be anywhere between 106 to 116 degrees, so when your engine pointer is anywhere along the Tolerance Bar, you'll be inside the above ranges.

 3.  Yes.  VCT (Variable Cam Timing) is simply the engines ability to change the mechanical timing of the camshaft with respect to the crankshaft while it is running.  Both intake and exhaust camshaft lobes (therefore centerlines) are simultaneously changed while the Lobe Separation Angle remains the same.  So all of the ValveTrax Tapes will be in the ranges of the VCT's.

      VVT (Variable Valve Timing) is simply the engines ability to change the mechanical exhaust valve timing with respect to the intake valve timing while the engine is running.  There are two camshafts; a solid camshaft with intake lobes is inserted inside a hollow camshaft with exhaust lobes.  Only the exhaust camshaft is adjusted with respect to the intake camshaft and therefore, only the Lobe Separation Angle changes.  So all of the ValveTrax Tapes will be in the ranges of the VVT's.

 4.   All of my ValveTrax Tapes are made at ¾” wide, however if for some reason you want it wider, I can do that but with an extra cost.  The length of all our ValveTrax Tapes are based upon the diameter of your harmonic balancer, disc or pulley, so be as accurate as you can when giving us that diameter value.

 5.   Use a tape or string to wrap around the balancer or pulley to measure the circumference and enter that value in the Other Diameter pull-down menu of the Ordering page.

 6.   Not to worry.  The heel of the camshaft lobe can be as small as 40 degrees worst case, which equates to 80 degrees on the crankshaft.  Having a gap or an overlap as large as 1/2 inch is only approximately 5 degrees in error, so in relation to the 80 degree heel you are still very close to "dead on" anyway when adjusting the valves.

 7.   Yes.  The instructions included with the packages for both ValveTrax Centerline and Mid-Point Tapes will show you exactly how to find the “Ignition” Top Dead Center for the #1 cylinder such that you are able to begin adjusting your valve lashes with confidence, quickly and easily.

 8.   No.  All ValveTrax Tapes are made to give you the exact crankshaft rotational location for each of your engine valves so you can adjust your valve lashes consistently and accurately.  The actual valve lash adjustment specifications will come from your OEM service manual or camshaft manufacturer or however you want them adjusted.  Many people have different ways to adjust the valve lashes for a hydraulic flat-tappet and roller camshafts (1/2 turn more, 5/8 turn more, 3/4 turn more, 1 turn more, 2 turns more, etc., etc.).  For solid lift camshafts, the cam manufacturer will give you their own specifications that you need to follow, but sensibly whatever camshaft you have, check with the camshaft manufacturer for their recommended valve lash specifications.

 9.   A ValveTrax Centerline Tape on a Chevy V8 engine (for example) with a roller camshaft and hydraulic lifters will take about 10 minutes to adjust them all.  With the ValveTrax Mid-Point Tape, it will only take about 7 minutes!

 10.   The very first prototype made was a Centerline design which looked like a bunch of broken railroad tracks, and being the purpose of the tools is to help adjust "valve lashes"...... hence the name!

 11. Once I receive an order and have it in stock, I'll ship it out the very next business day.  However, for the designs I do not have in stock and depending upon the amount of orders I receive; I am also still able to design, print, manufacture and ship the ValveTrax Tape the very next business day, so far!  (Of course, this will depend upon the number of orders I am receiving.)

 12. If the firing order or the balancer diameter or the reduction ratio you need are not in the pull-down lists, then simply enter the value you need in the “Other Firing Order” or the “Other Diameter” or the “Other Reduction Ratio” text boxes, respectively, just below those lists.  I will still design, manufacture and ship the tool out the very next business day and dutifully add your new info into our database and in the pull-down lists on this website at the same time for the next customer to choose from.

 13. The Reduction Ratio value mainly applies to aircraft engines.  About 99.999% of all automobile, marine, farm, and industrial engines will have their balancer or pulley directly attached to the crankshaft and therefore, will have a “default value” as shown as 1:1.  A lot of aircraft engines will have the balancer covered up and attached to a gear box for reducing the number of revolutions of the output shaft (propeller) with respect to the crankshaft.  Some common Reduction Ratios for aircraft engines are for example: 2.952:1, 2.364:1, etc.

 14. About 99.999% of all engines have no Crankshaft Offset whatsoever (0 degrees).  However, there are a select few that do, such as some Chevy 6-cylinder racing engines and the 10-cylinder Dodge Viper engine.

       Crankshaft Offset is not the same as Offset Grinding where the latter refers to the grinding down of the rod bearing journals and the centerlines of the crank pins are moved closer to, or farther away from, the centerline of the main bearing journals thereby, changing the stroke of the engine; you don’t need to consider this with the ValveTrax Tape because it doesn’t change the "mechanical timing” of the camshafts to the crankshafts.

       Crankshaft Offset refers to where each crank pin is split in half such that the latter half is either moved ahead (advanced) or behind (retarded) in rotational degrees to the first half.  That, of course, changes the "mechanical timing" of the opposite cylinder piston which also changes the camshaft intake and exhaust lobe timing of that cylinder and therefore, the location of where to adjust those valve lashes for that cylinder.  All ValveTrax Tapes are designed with those calculations in mind.  An example of Crankshaft Offset is shown on the Designs page.

        All ValveTrax tools have a Crankshaft Offset default value of 0 degrees, but you can select other values by using the Crankshaft Offset Advanced or Retarded pull-down menus.

 15. No.  Although nothing is completely impervious to damage by what we humans can do, the ValveTrax Tape material and the very special inks used are very resistant to water, alcohol, anti-freeze, gasoline, engine oil, transmission oil, gear lube and a host of other chemicals.