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Re: are the valves adjustable
This engine is equipped with hydraulic valve lifters. No adjustment is required.Rocker arm bolts (10) to 32 N.m (24 ft. lbs.). The hydraulic lifter should be on base circle of the camshaft. DO NOT OVERTIGHTEN. Hope this helps.
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Re: are the valves adjustable
I believe valves in modern vehicles are hydraulic and do not require adjustment. It is possible your vehicle may be different or has been modified. Solid lifters are not unknown just not real popular because of the maintenance they require. If there is a problem with the vehicle and you suspect valves are out of adjustment, you could remove the 4 bolts that hold the cover on and look. If there are adjusters, they will be immediately visable.
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firing order is 1-2-3
so when no 2 cylinder valves are in the rock position ( exhaust closing at the same time as inlet is opening) that will be no 1 piston tdc compression stroke adjust the both valves to the specification
.006" both valves
when no3 piston has valve rock adjust no 2 cylinder valves
when no 1 has valve rock adjust no 3 cylinder valves
go google and type in valve clearance of deutz 3 cylinder engine
there is another method explained where inlet of one cylinder and exhaust
this is done with one full revolution of the crank
www.deutzamericas.com page 42 of the manual
If the firing order is "1-3-4-2". First put it no.1 piston TOP DEAD CENTER. with the marks aligned. Adjust valve lash according to spec on intake and exhaust. Then turn crankshaft on whatever rotation it is suppose to go eg counter clockwise etc. quarter turn ( four cylinder engine). then adjust number 3 ( firing order 1-3-4-2). Then do the same for cylinder 4 and 2.
www.motorcyclespecs.co.za/model/suzu/suzuki_dr400s%2080.ht 1980. Engine. Air cooled, four stroke, single cylinder, SOHC, 2 valves per cylinder ....Valve adjustment can be done without a feeler gauge and the CDI has ..
sounds like hydrualic lifters , if sound goes away when warm then they are wearing , but dont panic sometimes they can be like that for years , if you car does'nt have hydrualic lifters then valve tappets can be making this noise , they may need adjusting.
- Pull the hand brake and put transmission in neutral.
- Remove spark plug cords.
- Remove the spark plugs.
- Remove the Tappet cover
- Lift up the left front wheel. Cylinder number 1 is toward the pulleys and belts side.
- Rotate the crankshaft anticlockwise with socket and extension rod and bring the valve tappets (intake and exhaust) No. 4 cylinder on dancing position.
NOTE: THERE ARE OTHER WAYS ALSO TO ADJUST THE FOUR VALVES AT A TIME. BUT AS DIY FOLLOW THE FOLLOWING METHOD TO AVOID ANY CONFUSION.
- Adjust the valve clearance of number 1 cylinder. Valve clearance:
Intake 0.18 - 0.22 (cold) Exhaust 0.25 - 0.28 (cold) - Rotate the crankshaft anticlockwise to bring the valves of cylinder 2 on dancing position and adjust the valves of No. 3 cylinder.
- Similarly rotate the crankshaft to bring the valves of No. 1 cylinder on dancing position and adjust the valves of No. 4.
- Rotate the crankshaft anticlockwise to bring the valves of cylinder No. 3 on dancing position and adjust the valve clearance of No. 2 cylinder.
Crank the engine until the mark on the Harmonic Balancer lines up with the "0" mark on the timing tab and the engine in the number one firing position. This may be determined by placing fingers on the number one valve as the mark on the damper comes near the "0" mark on the timing lab. If the rocker arms are not moving, the engine is in the number one firing position. If the rocker arms move as the mark comes up to the timing tab, the engine is in the number four firing position and should be turned over one more time to reach the number one position.
With the engine in the number one firing position as determined above, the following valves may be adjusted:
Exhaust: 1, 2, 3
Intake: 1, 5, 6 (Even numbered cylinders are in the left bank; odd numbered cylinders are in the right bank; when viewed from the rear of the engine).
Back out the adjusting nut until lash is felt at the pushrod then turn in the adjusting nut until all lash is removed. This can be determined by rotating the pushrod while turning the adjusting nut (figure 7). When the play has been removed, turn the adjusting nut in one and one-half additional turns (to center the lifter plunger).
Crank the engine one revolution until the timing tab "0" mark and vibration damper mark are again in alignment. This is the number four firing position. The following valves may be adjusted:
well first you need to know the firing order...if it's a small block chevy the firing order is 18436572. You need to write the second four digits underneath the first four digits.
so it looks like this 1843
This will let you know which rocker to adjust...turn the engine over by hand using a rachet on the crank shaft bolt by the harmonic balancer until you get both rockers for number 6 cylinder moving at the same time. Now you may adjust the clearance for both rocker for number 1 cylinder. Then crank the engine over by hand again until number 5 cylinder rockers start to move. Now you can adjust the clearance on number 8 cylinder. You will need to know the manufacturer specs for the valve clearance...continue until all rockers have been adjusted.
Note: The engine should be warm when you make the adjustment.