Would like to know how to measure the valve clearances

Yes certainly can and the Service Manual as well

VALVE CLEARANCE (K3-VE)

VALVULITA https://www.valvulita.com > sites > default > files
(u) Apply engine oil to the cam of the camshaft and the journal part of the cylinder head, and then install the camshaft. NOTICE: Position it so the cam nose of ...
10 pages

Daihatsu TERIOS J100 Maintenance Manual (Page 18 of 43)

ManualsLib https://www.manualslib.com > ... > Maintenance manual
Inspection and adjustment of valve clearance. The measurement and adjustment ... apply engine oil to between the lock nut and the valve. rocker arm. q Remove ...

Tappet clearance 1300cc terios?

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Nov 14, 2019 - The tappet clearance for your Hyundai Atos 2007 would be: ... Valve clearance Warm: 0.2 mm intake, 0.25 mm exhaust. ... Valve clearance Cold: 0.1 mm intake, 0.17 mm ...

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The clearance, or gap, of the valves on a 2002 Mitsubishi Lancer OZ Rally is the distance between the valve and the valve seat when the valve is in the closed position. The clearance is typically specified by the manufacturer and is measured in thousandths of an inch.
To determine the valve clearance for your Lancer OZ Rally, you will need to refer to the manufacturer's specifications or service manual for your specific model. The valve clearance may vary depending on the type of engine and the specific application of the vehicle.
It is important to maintain the correct valve clearance on your Lancer OZ Rally to ensure that the engine operates efficiently and effectively. If the valve clearance is not within the specified range, it may cause problems such as reduced engine performance, increased fuel consumption, and increased emissions.
To adjust the valve clearance, you will need to remove the valve cover and use a feeler gauge to measure the gap between the valve and the valve seat. If the gap is not within the specified range, you will need to use a wrench to adjust the clearance by turning the adjustment screw on the rocker's arm. It is recommended that you have the valve clearance adjusted by a qualified mechanic if you are not familiar with this process.

A good feeler gauge set and a basic set of sockets, wrenches, and a screw driver set will work for most engines. I hope this helps. Rod
Now first you check the clearance and record the clearances. If they are out you need to change the valve bucket (which comes in different sizes). This involves removing the camshaft to change the buckets and then reassemble and recheck the clearances. This is a big job and dealerships will often charge $1500 plus to do this job. I am going to post some info from a thread which will explain further. Many motorcycles are similar as well.

The general procedure for checking and adjusting the clearance based on having done this on bikes is;
Before removing old belt
Measure and record each intake and exhaust valve clearance using feelers gauges. Use the crank rotation sequence and measurement order listed in the manual, else you may get erroneous readings due to cam journal clearances and the valve springs pushing the cam around in the bearings. Some are not measured on the exact base of the cam (i.e suzuki)
Compare the readings to specification
If any are out of tol, calculate the difference between the reading and spec.
Remove the camshaft with the out of tolerance readings (usually both if one is out of tol).
Record the markings on the bottom of the buckets that are out of tolerance. (I usually like to measure these with a mike to verify markings and or determine if there is any measurable wear and adjust accordingly)
Refer to the list of available bucket sizes (from svc. manual or dealer parts counter)
Add or subtract the difference you calculated above to determine your new bucket size. (bikes typically tighten up so you end up going with a thinner shim, er bucket)
Order the buckets needed (sometimes you can swap them around between locations to minimize the qty needed to order).
Install new buckets in the proper locations.
Re-install cams, new belt, new tensioners, and new Idlers.
Repeat measurement process from above.
If measurements are in spec, you are done.
If not, repeat.

Last winter I checked the valve clearance on a 2001 Focus ZX3 with the 2.0L DOHC engine. It had about 85K on it. The clearances were all pretty close to nominal. I don't know the history on the car since new so they may have been adjusted at some time in its life. IIRC the interval for that car was 75K.

As I said above, bikes typically tighten up with this type of valve train. This is due to the valves seating deeper in the valve seats due to wear. This increases the installed height of the valve, decreasing the clearance to the cam. The rate of seat wear exceeds all other wear causing them to tighten.

Tight valves are worse than loose valves. Can eventually lead to low compression, and burnt valves.

If the wear of the cam, bucket, cam journal exceed that of the valve seat, the clearance will increase.

I don't know what the general trend on these engines are as far as tightening or loosening, but if they are like a bike, they will tighten.

I can tell you that on bikes if they are operated a significant amount of time near the red line, they will require more frequent adjustment compared to one operated more conservatively. A bike that is operated conservatively may not need any adjustment at the first inspection interval (not unusual for my Yamaha FZ1, 26,000 mile interval)

Sorry about being long winded, but I thought I would do a brain dump to help people understand the process.

I hope this helps. Rod

will need a micrometer, valve clearance adjustment tool set for shimmed lifters,small magnetic arm, appropriate shim selecting charts (manufacturer will have this if you can get the nec. measurements).
Measure thickness of shims removed (using micrometer) and use this formula where T=Thickness of old shim; A=Valve clearance measured; N=Thickness of new shim required.
Intake valves: N = T + (A - 0.02 mm (0.008 in.)) Exh. valves: N = T + (A - 0.25 mm (0.010 in.))
Then you need to find shims as close as possible to the calculated values.
Valve clearances (cold) are as follows: Intake0.15 - 0.25 mm (0.006 - 0.010 in.) Exhaust0.20 - 0.30 mm (0.008 - 0.012 in.)
Note, if you are not familiar with precision measuring using a micrometer, this may be better left to a trained tech. These are high revving little power plants and you don't want a problem at 8K rpm.

Elroy Vincent Schenk

when a question is historically 10 years and 2 days old, it is better to post your own question as a new one.

Chery QQ Service Manual [Page 23] - Cylinder Head

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(Measured valve clearance -0.25mm). ? Exhaust valve. Select gasket thickness = Unload thickness +. (Measured valve clearance -0.25mm). [Reference]. The 32 ...
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REMOVAL

1. Remove front cover.
2. Remove oil filter adapter, pressure regulator valve and spring.

Fig. 16 Oil Pump & Housing

1. Remove oil pump cover attaching screws, then the cover and gears, Fig. 16 .

INSPECTION

1. Check pump cover and housing for cracks, scoring, porous or damaged casting, damaged threads or excessive wear or galling. Replace as required.
2. Check pressure regulator valve for scoring, burrs or sticking in valve bore. Replace as required.
3. Check pressure regulator valve spring for tension loss or bending, replace spring as required.
4. Check gears for chipping galling or excessive wear, replace as required.

Fig. 17 Oil Pump Inner Gear Tip Clearance Inspection

1. Measure oil pump inner gear tip clearance, Fig. 17 . Maximum clearance should be 0.006 inch.

Fig. 18 Oil Pump Outer Gear Diameter Clearance Inspection

1. Measure oil pump outer gear diameter clearance, Fig. 18 . Clearance should be 0.008-0.015 inch.

Fig. 19 Oil Pump Gear End Clearance Inspection

1. Measure oil pump gear end clearance with gear dropped in housing, FIG 19. Clearance should be 0.0010-0.0035 inch.
2. Measure pressure regulator valve for valve to bore clearance of 0.0015-0.003 inch.

INSTALLATION

1. Lubricate all gears with clean motor oil, then install gears in housing.
2. Pack pump cavity with suitable petroleum jelly.
3. Install pump cover and cover attaching screws. Tighten cover attaching screws to specifications.
4. Install pressure regulator valve and spring.
5. Install oil filter adapter using a new gasket, tighten oil filter adapter attaching bolts to specifications.
6. Install front cover on engine. During front cover installation, ensure inner pump gear is properly engaged on crankshaft sprocket.

Valve clearance ideal setting is 0.10mm however as ideal replacement size shims are not always available use tolerance 0.05 to 0.2mm inlet and exhaust Procedure remove tappet cover rotate motor to tdc compression (inlet valve lobe pointing to rear wheel and exaust lobe to front wheel) measure clearance if no clearance depress cam bucket hold down by wedging a screwdriver or suitable tool (allen key) between cam bucket and cam remove shim measure with micrometer an relace with a shim 0.15 thinner depress valve remove wedge and measure clearance (if any) repeat procedure 4 each cylinder if clearance to large replace shim with a thicker one till clearance is in spec

http://faq.ninja250.org/wiki/What_is_the_adjustment_procedure%3F

Yes, you have 4 valves per side, 2 are intake, 2 exhaust. On the intake, the opener is .002-.007, and the closer .006-.010 , The exhaust, opener is, .002-.009 and the closer is ,.004- .008. If you are planning on doing this yourself, you need to do your math and get the right shims, Ducati will sell you the shims you need, but there are other people out there making them. When measuring the clearance, you need to turn the engine over by hand, pull the plugs, pull the cover off the left side to get to the crank bolt, get a friend to crank the engine over while you runs shims in and out of the rockers, keep notes on your measurements.

This engine utilizes shims to set proper clearances, you will need a micrometer, valve clearance adjustment tool set for shimmed lifters,small magnetic arm, appropriate shim selecting charts (manufacturer will have this if you can get the nec. measurements).
Measure thickness of shims removed (using micrometer) and use this formula where T=Thickness of old shim; A=Valve clearance measured; N=Thickness of new shim required.
Intake valves:   N = T + (A - 0.02 mm (0.008 in.)) Exh. valves:     N = T + (A - 0.25 mm (0.010 in.))
Then you need to find shims as close as possible to the calculated values.
Valve clearances (cold) are as follows: Intake 0.15 - 0.25 mm (0.006 - 0.010 in.) Exhaust 0.20 - 0.30 mm (0.008 - 0.012 in.)
Note, if you are not familiar with precision measuring using a micrometer, this may be better left to a trained tech. These are high revving little power plants and you don't want a problem at 8K rpm.