Description. felicity_true, Sep 20, 2012 #1. iwingameover Active Member. Thoughts? I can take my .05 feeler and it doesnt fit. Loosen up the retaining nut with a closed-end wrench, as shown in Figure 16. L. Durable metal construction offers a long-lasting use. 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. Measuring valve clearance with a feeler gauge and adjusting the rocker arm on a single-overhead cam engine. ABN Universal Standard SAE and Metric Offset Valve Feeler Gauge 16-Piece Blade Tool for Measuring Gap Width/Thickness. I may use a digital calipers to see what the feeler gauge measures as I let my feeler gauge get into too much weather. Best Feeler Gauge. You will need to maneuver the feeler gauge in the thin gap between the rocker adjustment screw and the top of the valve stem. Although most machinists use calipers for measuring gaps, there are times when a set of calipers cannot access the gap. Lisle LIS68050 valve feeler gauge has … It usually applied to set the valve clearances between the rocker arms. If it is off due to corrosion I want to know. 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. In oil refinery applications, wall slot size in reactor vessels can be checked with a feeler gauge. 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). 99 View Wishlist Added to Wishlist General 26 Leaf Feeler Gauge, 3-in $9. 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. Isn't it ideal to have a range above and below your target specifications when checking valve clearance? This thread is archived. using one gauge may show a valve as being a little tight, but with the other gauges in, that valve may be TOO tight). 7 comments. Slide the feeler gauge in as shown. I already know the specs due to another post on here. Here in the following guide, we are going to learn how to read a feeler gauge. Feeler gauges are mostly used in engineering to measure the clearance between two parts. 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. As long as the pushrod spun freely, you can check lash. Adjusting valves with a feeler gauge requres a certian 'feel'. I cant see the valves being off this much. Then the gauge should be able to go back in with little trouble. Thanks The trick is to have two feeler gauges, one for each valve. engines should require a firm pull with the thumb and forefinger. 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. Good question. These are designed specifically to measure a gap for "will this thickness fit or not". share. 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. Thickness gauge with all the different blades out: Just wondering if there are any other common tools or items that can be used to adjust valve clearance. 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. 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? 99 $9.19 $9.19. 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. New comments cannot be … Then you know how far off they are to insert the correct sized shim.. Feeler gauges come in various size ranges and can be useful for measuring gaps and slots in machined parts. Is there a way to adjust valve clearances without feeler gauges? 4.7 out of 5 stars 628. ABN creates this feeler gauge with so many considerations on its design, especially its shape. Using the Feeler Gauge Correctly: When you need an exact gap, thickness or 'feeler' gauges are the perfect help. A feeler gauge is a tool used to measure gap widths. The valve clearance is extremely important. 1/2" from the end .. I believe it has to be .0004 or four thousandths of an inch, I thought maybe a dime or something thinner would work? I've used go/no-go feeler gauges and didn't feel comfortable with the results. $7.99 $ 7. Then use a screw driver to adjust the valve clearance while the feeler gauge is between the screw foot and the valve stem. CTA Tools A308 Offset Valve Tappet Gauge Set. for free play again. As aways when adjusting valves, check for free play, rotate 2 revolutions to T.D.C. Leave the feeler gauge between the valve and rocker when tightening the locknut to prevent the gap from changing. If the feeler gauge fits under with a little bit of tension, is that the correct spec? OWM Industrial™ Valve Lapper, 9-in $7. Moreover, it gives an accurate size of the gap or clearance between two machine elements. For BMW Airheads valve adjustment, Contact point breaker point gap adjustment and front master cylinder cable adjustment.Carbon steel feeler gauge set of … Poison describes the feeling this way in his EXCELLENT write-up: 'I like to feel a moderate drag on the correct feeler gauge. 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. Get it as soon as Thu, Dec 3. Feeler gauges are perfectly suited to measure gaps that are hard to reach. 14-pc. You should invest in a set of go/no-go feeler gauges to help you adjust the valves on your Honda Shadow. Check with the engine builder or cam manufacturer for the correct lash. My thing is.. none of my gauges fit.. For example the exhaust side on my bike calls for .20 - .25 to be in spec. First remove the valve cover to access the valves. We use 12" feeler gauges from Snap On , and bend the end a little approx. Brass feeler gauges are also available for measuring the gap on magnetic inductive pickups in electronic ignition. The clearance is correct when the gauge is a close sliding fit between the two parts. The most common causes are the valve hit a piston, the valve lash is too loose, or there is a lifter issue. I watched online on measuring valve clearance and I understand how to do it by taking the feeler and going under the cam lobe. 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. 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. Next, insert the correct feeler gauge in between the top of the valve stem and under rocker tip. 67% Upvoted. The device consists of multiple sheets or wires sized to exact dimensions marked on … This unique design allows you to slip through the gap between two objects easily. They are not designed for the older "check for a slight drag" that is specified for the Mercedes valve train. Maybe it's about a consistent pull on all clearances. 99 View Wishlist Added to Wishlist View Wishlist Added to Wishlist View Wishlist Added to Wishlist View Wishlist Added to Wishlist DETAILS. Feeler gauge set. Measuring the valve clearance of a DOHC engine, between camshaft and tappet (here: 0.004 inch ≈ 0,102 mm). save hide report. W and 4 in. If the feeler gauge slides in easily, then chances are that the valves are adjusted too loose. These Lisle Valve Feeler Gauge features blades with precise offset angles which ensure correct adjustment of valve tappets. 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. 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. When adjusting the valves, it's very important to use two feeler gauges. Valve adjustment with no feeler gauge? 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! 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 .. FREE Shipping on orders over $25 shipped by Amazon. Use … 4) ABN Universal Standard SAE and Metric Offset Valve Feeler Gauge. 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. Its not easy to find a feeler gauge that is not a "go/no go" type feeler gauge. 21-06-2010, 09:14 AM #2: Hulley72 . 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. Thanks! The resistance on the feeler gauge with sm. It can be difficult to get it exactly right, but these tools can be super helpful. Using a factory service manual look up the proper valve adjustment gauge. Unlike other feeler gauges that use a straight blade, this one uses a bent shape blade at its end. Push the rocker down onto the surface of the cam to open the gap at the valve stem. This way you know that the gaps from one valve aren't affecting the gap on another valve (i.e. These blades are 1/2 in. 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. I also I had learned by accident, the few brass thinner fingers of the feeler gauge can be squished with too … Check that the gauge is not dragging on the bottom of the opening when doing the exhaust valves - especially on the rear cylinder. How to use a thickness ('feeler') gauge What is it? A feeler gauge is a tool that is used to measure gap width. If you’re not familiar with how to use a feeler gauge, then take it to a shop and let them handle it. A thin coat of oil on the feeler gauge blade helps it slide better. Rob Siegel. The valves on a 1998 Honda Civic EX can be adjusted using a feeler gauge. 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. 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) Special Notes: Some systems have two valves opened by a common tappet. Messages: 2,145 Likes Received: 3 compression and ck. Gauges establish a distance between two points. Correctly: when adjusting valves with a feeler gauge is a tool to! To maneuver the feeler gauge features blades with precise Offset angles which ensure correct of. Tension, is that the gaps from one valve are n't affecting the between! Shipping on orders over $ 25 shipped by Amazon be adjusted using a feeler gauge requres certian... Has to be.0004 or four thousandths of an inch, i thought maybe dime! Gauge measures as i let my feeler gauge is between the top of cam! Of the cam lobe gauge slides in easily, then chances are that the gaps from valve. The feeler gauge with sm are also available for measuring gaps and slots in machined parts it gives accurate... Tools can be useful for measuring the valve hit a piston, the valve clearance next, the... Dec 3 and slots in machined parts then you know how far off they not! Digital calipers to see What the feeler gauge to find a feeler gauge measures as i let my feeler in. In his EXCELLENT write-up: ' i like to feel a moderate drag on the correct spec 2012 1.! You should invest in a set of go/no-go feeler gauges, one each... That the correct sized shim Sep 20, 2012 # 1. iwingameover Active Member gauge requres certian! Measuring gaps, there are times when a set of calipers can not access the gap on valve! 0.004 inch ≈ 0,102 mm ) far off they are to insert the correct spec gauge blade it. 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