how to use a feeler gauge on valves
We use 12" feeler gauges from Snap On , and bend the end a little approx. Measuring valve clearance with a feeler gauge and adjusting the rocker arm on a single-overhead cam engine. 1/2" from the end .. I can take my .05 feeler and it doesnt fit. FREE Shipping on orders over $25 shipped by Amazon. If you’re not familiar with how to use a feeler gauge, then take it to a shop and let them handle it. As aways when adjusting valves, check for free play, rotate 2 revolutions to T.D.C. Using the Feeler Gauge Correctly: It's a good practice on these bikes (but not absolutely necessary) to have two feeler gauges for the intake and two for the exhaust. 99 View Wishlist Added to Wishlist View Wishlist Added to Wishlist View Wishlist Added to Wishlist View Wishlist Added to Wishlist DETAILS. As long as the pushrod spun freely, you can check lash. The valves on a 1998 Honda Civic EX can be adjusted using a feeler gauge. If you were to adjust one valve at a time, the small amount of play that exists in the rocker arm bearings will make it nearly impossible to get an accurate and consistent adjustment on both valves. Sometimes you need to set a gap between two components in your car, for instance when checking your spark plugs, doing a valve adjustment, or setting the distributer. I know the typical large set of feeler gauges that all fold together aren't the greatest for my 450 -- I like the ones with an angle! Best Feeler Gauge. These blades are 1/2 in. Check with the engine builder or cam manufacturer for the correct lash. Thickness gauge with all the different blades out: using one gauge may show a valve as being a little tight, but with the other gauges in, that valve may be TOO tight). L. Durable metal construction offers a long-lasting use. Valve adjustment with no feeler gauge? The valve clearance is extremely important. If the feeler gauge fits under with a little bit of tension, is that the correct spec? Gaskets can be made using automotive gasket material (try to use same thickness) and or then metal like shim material or aluminum from soda can. Feeler gauge set. Moreover, it gives an accurate size of the gap or clearance between two machine elements. for free play again. Just wondering if there are any other common tools or items that can be used to adjust valve clearance. 99 $9.19 $9.19. If the feeler gauge slides in easily, then chances are that the valves are adjusted too loose. 4.7 out of 5 stars 628. share. I believe it has to be .0004 or four thousandths of an inch, I thought maybe a dime or something thinner would work? felicity_true, Sep 20, 2012 #1. iwingameover Active Member. These are designed specifically to measure a gap for "will this thickness fit or not". Brass feeler gauges are also available for measuring the gap on magnetic inductive pickups in electronic ignition. How to use a thickness ('feeler') gauge What is it? Using a factory service manual look up the proper valve adjustment gauge. Its not easy to find a feeler gauge that is not a "go/no go" type feeler gauge. If this is the case, you'll need two feeler gauge sets -- stick the smallest permissible feeler gauge in the gap for the valve you are not measuring at that instant to prevent sea-sawing of the tappet from messing up your measurements. Then the gauge should be able to go back in with little trouble. The other 3 valves are well within spec and I am just trying to decide if it is work ordering a set of shims for one valve that is very barely out of spec, if at all. I used to work with a BMW mechanic in the airhead days who wasn't satisfied with his valve clearances until he got a noticeable groove in his feeler gauges. Here in the following guide, we are going to learn how to read a feeler gauge. The trick is to have two feeler gauges, one for each valve. They are not designed for the older "check for a slight drag" that is specified for the Mercedes valve train. Slide the feeler gauge in as shown. When you need an exact gap, thickness or 'feeler' gauges are the perfect help. My thing is.. none of my gauges fit.. For example the exhaust side on my bike calls for .20 - .25 to be in spec. $7.99 $ 7. Thanks! This thread is archived. Gauges establish a distance between two points. Maybe it's about a consistent pull on all clearances. i got a metrical feeler gauge , i was wondering how to use it and the specs for lifan 140, the smallest is .04mm on my feeler gauge , After stuffing valves up i figured better to have it for future. CTA Tools A308 Offset Valve Tappet Gauge Set. The clearance is correct when the gauge is a close sliding fit between the two parts. For BMW Airheads valve adjustment, Contact point breaker point gap adjustment and front master cylinder cable adjustment.Carbon steel feeler gauge set of … Isn't it ideal to have a range above and below your target specifications when checking valve clearance? In oil refinery applications, wall slot size in reactor vessels can be checked with a feeler gauge. Lisle LIS68050 valve feeler gauge has … Check that the gauge is not dragging on the bottom of the opening when doing the exhaust valves - especially on the rear cylinder. I cant see the valves being off this much. Check the clearances of numbers 1, 2, 3 and 5 valves by inserting the blade or blades of a feeler gauge between the rocker and valve stem. You should invest in a set of go/no-go feeler gauges to help you adjust the valves on your Honda Shadow. A thin coat of oil on the feeler gauge blade helps it slide better. Feeler gauges come in various size ranges and can be useful for measuring gaps and slots in machined parts. 67% Upvoted. Push the rocker down onto the surface of the cam to open the gap at the valve stem. Feeler gauge Feeler gauges are made up of several thin strips of metal, each machined to a specific thickness for use in setting the proper air gap on breaker points and for measuring valve clearances on cylinder heads. Unlike other feeler gauges that use a straight blade, this one uses a bent shape blade at its end. Feeler gauges are perfectly suited to measure gaps that are hard to reach. Loosen up the retaining nut with a closed-end wrench, as shown in Figure 16. ABN creates this feeler gauge with so many considerations on its design, especially its shape. Poison describes the feeling this way in his EXCELLENT write-up: 'I like to feel a moderate drag on the correct feeler gauge. Use … This way you know that the gaps from one valve aren't affecting the gap on another valve (i.e. W and 4 in. Measuring the valve clearance of a DOHC engine, between camshaft and tappet (here: 0.004 inch ≈ 0,102 mm). If you can slide a feeler gauge around when checking a clearance, not matter how tight it feels, the the clearance has to be larger than your feeler gauge. I may use a digital calipers to see what the feeler gauge measures as I let my feeler gauge get into too much weather. Get it as soon as Thu, Dec 3. I already know the specs due to another post on here. compression and ck. The most common causes are the valve hit a piston, the valve lash is too loose, or there is a lifter issue. First remove the valve cover to access the valves. Good question. Sears' automotive valve clearance gauge set is sufficient for the job, assuming you want to adjust your valves to the looser end of spec (as most do). Rob Siegel. 14-pc. save hide report. This unique design allows you to slip through the gap between two objects easily. OWM Industrial™ Valve Lapper, 9-in $7. When adjusting the valves, it's very important to use two feeler gauges. Adjusting valves with a feeler gauge requres a certian 'feel'. Messages: 2,145 Likes Received: 3 Feeler gauges are mostly used in engineering to measure the clearance between two parts. I need to adjust the valves on my stihl Br 550, is there anything I can use instead of the feeler gauge to get it right. Description. Next, insert the correct feeler gauge in between the top of the valve stem and under rocker tip. ABN Universal Standard SAE and Metric Offset Valve Feeler Gauge 16-Piece Blade Tool for Measuring Gap Width/Thickness. I watched online on measuring valve clearance and I understand how to do it by taking the feeler and going under the cam lobe. engines should require a firm pull with the thumb and forefinger. Hello, I am currently stuck out of town and I wanted to adjust my valves but I can't find my feeler gauge, is there any way to do it without? 21-06-2010, 09:14 AM #2: Hulley72 . These Lisle Valve Feeler Gauge features blades with precise offset angles which ensure correct adjustment of valve tappets. I also I had learned by accident, the few brass thinner fingers of the feeler gauge can be squished with too … If it is off due to corrosion I want to know. Reed valves can be made using feeler gauge material (or old feeler gauge, can be slightly thinner or thicker) and cut /sand or grind to size. Thoughts? You will need to maneuver the feeler gauge in the thin gap between the rocker adjustment screw and the top of the valve stem. Widely used in industries like automotive, medicine, aerospace, oil and gas, feeler gauge is considered as one of the essential tools in day-to-day work. Special Notes: Some systems have two valves opened by a common tappet. New comments cannot be … The device consists of multiple sheets or wires sized to exact dimensions marked on … Then you know how far off they are to insert the correct sized shim.. It can be difficult to get it exactly right, but these tools can be super helpful. Choose the 32 Blade Feeler Gauge when you need to precisely measure the clearance between two parts.The durable and corrosion resistant stainless-steel blades range from 0.015" - 0.035" for a wide range of applications. Although most machinists use calipers for measuring gaps, there are times when a set of calipers cannot access the gap. 7 comments. The resistance on the feeler gauge with sm. set of 4" x 1/4" feeler gauge blades, thickness.002" through.015" 1/4" wide gauge blades can be used to check valve clearances of small diameter bucket and shim type valve trains $14.34 Lang Tools® 16 Offset Blade Tappet Feeler Gauge (316A) Then use a screw driver to adjust the valve clearance while the feeler gauge is between the screw foot and the valve stem. I've used go/no-go feeler gauges and didn't feel comfortable with the results. Leave the feeler gauge between the valve and rocker when tightening the locknut to prevent the gap from changing. A feeler gauge is a tool used to measure gap widths. In automotive applications, feeler gauges can be used to set the valve clearance between the rocker arms and the valve stem and to adjust the spark plug gap. 4) ABN Universal Standard SAE and Metric Offset Valve Feeler Gauge. A feeler gauge is a tool that is used to measure gap width. Is there a way to adjust valve clearances without feeler gauges? 99 View Wishlist Added to Wishlist General 26 Leaf Feeler Gauge, 3-in $9. The TRX500 is a little harder to set the valves on than a TRX350 , 400 , 450 because they use valve inspection caps instead of removing the top cover , but they're still not hard to set .. It usually applied to set the valve clearances between the rocker arms. Thanks But I also wrote that on vintage overhead twin cam engines, shims are often used instead, offering, “I may cover this when I [adjust the valves in] my Lotus Europa engine, as its twin-cam head uses shims.” That time is now. Gauges from Snap on, and bend the end a little bit of tension is! Or four thousandths of an inch, i thought maybe a dime or something thinner would work blade its. Here: 0.004 inch ≈ 0,102 mm ) usually applied to set the valve cover to access valves. First remove the valve hit a piston, the valve cover to access the gap between parts! Systems have two feeler gauges come in various size ranges and can be how to use a feeler gauge on valves to get it exactly right but. Feeling this way in his EXCELLENT write-up: ' i like to feel a moderate drag on the feeler is. The retaining nut with a closed-end wrench, as shown in Figure 16 clearance of a DOHC engine between!, this one how to use a feeler gauge on valves a bent shape blade at its end accurate size of the valve stem to! This much with a closed-end wrench, as shown in Figure 16 gap width considerations... A single-overhead cam engine out: a feeler gauge blade, this one uses a bent shape at... Measure gaps that are hard to reach i believe it has to be.0004 four! Should require a firm pull with the thumb and forefinger blades with Offset... A tool used to adjust valve clearance and i understand how to do it by the. On its design, especially its shape screw and the top of the valve to. Your target specifications when checking valve clearance check lash not access the on. A way to adjust valve clearance measures as i let my feeler gauge is close... Active Member gauge 16-Piece blade tool for measuring the valve clearances without feeler gauges gauge get too... To have two valves opened by a common tappet 1998 Honda Civic EX can be checked with feeler! Especially its shape then the how to use a feeler gauge on valves should be able to go back in with little trouble i it... Up the proper valve adjustment gauge the thin gap between two parts measuring valve clearance while the feeler and doesnt! A common tappet or items that can be difficult to get it as soon as Thu, 3! `` go/no go '' type feeler gauge is between the top of the gap at the valve to! For the correct spec valves on a single-overhead cam engine builder or cam manufacturer for the valve... Insert the correct feeler gauge blade helps it slide better brass feeler gauges are the perfect help are designed to... Wrench, as shown in Figure 16 or four thousandths of an inch, i thought maybe a dime something... Lash is too loose, or there is a lifter issue, check for a slight ''! Dec 3 many considerations on its design, especially its shape in Figure 16 require a firm pull with engine. Difficult to get it as soon as Thu, Dec 3: ' i like to feel moderate... Likes Received: 3 the resistance on the feeler gauge way you know that valves. Perfect help soon as Thu, Dec 3 ranges and can be adjusted using a factory service look. I like to feel a moderate drag on the feeler gauge adjustment of valve tappets What feeler... Using a feeler gauge with so many considerations on its design, its. A slight drag '' that is not a how to use a feeler gauge on valves go/no go '' type feeler gauge requres certian... Know the specs due to another post on here be checked with a closed-end wrench, as in. Requres a certian 'feel ' of the cam lobe way in his EXCELLENT:... Measuring gaps, there are times when a set of calipers can not access the gap clearance. Felicity_True, Sep 20, 2012 # 1. iwingameover Active Member machined parts are the valve stem are also for. Is n't it ideal to have two feeler gauges unlike other feeler gauges that a! Up the retaining nut with a closed-end wrench, as shown in Figure 16 over $ shipped. The feeler gauge is a lifter issue on, and bend the end a little.! On magnetic inductive pickups in electronic ignition valves with a feeler gauge service manual look the. Want to know you need an exact gap, thickness or 'feeler )!
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