Question about 1975 Moto Guzzi 850 T 3

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Guzzi 1975 850t tappets set at 9 thou on tdc on comp stroke still noisey on right cylinder.rotate engine bit more gap gets bigger is this right

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Yes, adjust gap when it is at it's widest.

Posted on Apr 29, 2010

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If its quite it won't run right , guzzi have some tappet noise ( solid lifters? )

Posted on Aug 26, 2012

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Put on a new timing belt now it wont start


I need some clarification. Did you replace the belt because it broke? If so you may need to replace the head. The problem is if the belt breaks when your moving it usually damages the head and thus needs to be replaced.

Jul 25, 2012 | Plymouth Breeze Cars & Trucks

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How to install a distributer on a 2000 mazda millenia 2.5L


You'll need to rotate the engine only in a clockwise direction, to get it to TDC on the compression stroke. When the engine is on the compression stroke, both valves to that cylinder are closed completely.

You can hold your finger over the #1plug hole with the plug removed, and as the engine is turned, you will notice pressure building, use a long rubber hose or something you won't drop into the cylinder, to put into the cylinder to feel the piston as it comes up to the very top. If you go past it, rotate the crankshaft 2 full times (almost) to get back to the TDC position.

There is also a mark on the crank pulley that will tell you when you reach TDC. Identifying the compression makes sure it's on the compression stroke, not the exhaust stroke. The engine turns 2 full turns for one turn of the camshaft.

Once you have TDC on the engine, rotate the distributor in your hand, to where the rotor will be pointing at the #1 position where it would send spark to the #1 spark plug wire & plug. Install and adjust as necessary to get the best idle, then hook up your timing light to set it to the factory specs.
Good luck!

Mar 30, 2012 | 2000 Mazda Millenia

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Find tdc and adjust valves on a 325 i


With the tappet cover off, rotate the engine in the normal direction of rotation until you see #4 cylinder valves rock - open/close in succession. This will be TDC on #1 - set the valve clearances. Turn the engine until your see #2 valves rock, set #5 valves, turn the engine till #6 valves rock, set # 3 valves, turn the engine until #3 valves rock, set # 6 valves, turn engine till #5 valves rock, set # 2 valves, turn engine till #1 valves rock, set # 4 valves. Once you have located #1 TDC (the second mark in the pulley should be lined up with the cover mark), it is only 60 deg. to get to the next cylinder to set. If you accidentally go past the setting point, go back and approach the setting point again in the direction of engine rotation. When you come to setting # 6 the TDC marks should be aligned again.

Jan 29, 2011 | 2003 BMW 325

1 Answer

Bike takes 2 to3 minutes to warm up .hear a clicking noise and it sounds like a soppy tappet noise after it does warm up.Do 82 goldwings have ajustible tappets


Yes , the Goldwing valves are easily adjusted by taking off the valve covers. On the top left back of the motor is an engine cap that if removed will tell you the top dead center for the cylinders . T-1 position , loose valves on front right cylinder (number 1) TDC compression stroke.

cylinder number intake valve exhaust valve
1 A A
2 B B
3 B A
4 A B

A= Adjust with cylinder 1 at TDC at compression stroke.

B= Adjust with cylinder 1 at TDC at exhaust stroke

Valve tolerance for all valves is 0.004 in ( 0.1 mm) with a feeler gauge

Oct 03, 2010 | 1982 Honda GL 1100 Gold Wing

1 Answer

Tappet`s knocking on my kymco ck 125


Option 1: Go to mechanic

Option 2: Adjust the tappets. If you have never adjusted tappets or worked with engines before it is better to have someone experienced with you. The following is the procedure I use.

1: Carefully remove side panels.
2: Close fuel tap and disconnect pipe.
3: Carefully remove fuel tank. (undo the bolt under the seat and slide the tank 2 inches back, then lift it upwards)
4: Undo the bolts of the cylinder head cover (3 bolts with 12mm head, one of them also holds a small bracket for the throttle cable or ignition wire, I can't remember).
5: Remove the cylinder head cover. If you find this difficult put the bike in 5th gear and rotate the engine (by rotating the rear wheel) to the "inlet valve open" position so that the cover clears the "inlet valve rocker". Be careful that you do not damage the top cover gasket (made of rubber) or you will have an oil leak and no lubrication to the rockers.
6: Rotate the engine to a position with both valves closed, as close as possible to "top dead centre of compression/power strokes". There is a notch on the flywheel indicating top dead centre - you see this by opening the cap on the top of the flywheel cover on the left side of the bike. (do not stay at "top dead centre of exhaust/intake strokes")
7: Check the free play of the rockers on the valves. The service manual recommends a clearance between the valve and the rocker of 0.08mm with the engine cold (left to cool overnight). Maximum acceptable is 0.10mm and minimum is 0.06mm. The gap is checked using a feeler gauge (you know that you have a gap of 0.08mm by sliding a feeler that is 0.08mm thick and there is just a little friction slowing you down - if the feeler is hard to pull the gap is less than 0.08 and if the feeler passes with nothing resisting it then the gap is larger than 0.08mm).
8: If the tappets are knocking then the gap is too large. Undo the locknut on the tappet adjuster (10mm nut at the end of the rocker) just enough to let you turn the tappet adjuster. Then rotate the tappet adjuster until you get the right gap and tighten the locknut. Be sure to hold the tappet adjuster with pliers or something else while tightening the locknut so that the adjuster does not rotate.
9: Check and re-check that the gap between the adjuster and the valve is as specified. Incorrectly adjusted tappets are very bad for the engine, especially "tight" tappets with no gap between adjuster screw and valve. The first time you adjust tappets you might have to repeat from step 7 several times until you get used to it.
10: Assemble everything in the reverse order of disassembly. You might have to rotate the engine to "intake valve open" position again to place the cylinder head cover easily. During assembly be careful the the rubber gasket of the cover is not damaged or out of place. There is an oil path from the head to a nozzle above the rockers and the gasket must seal this well.
10: Once you assemble everything start the engine and once it is hot enjoy a more silent bike. It is normal on these engines to have some tappet noise when cold, but if the tappets are adjusted right they are nearly silent when hot.

Always refer to an expert when you are not sure. Maybe the first time it is safer to watch your trusted mechanic do this work.

Sep 20, 2010 | 2005 Kymco Stryker 125

1 Answer

Need valve lash(clearance) settings for 1983 Yamaha XS 650 SK motorcycie intake valve setting and exhaust valve settings example 0.006 in or 0.008 in etc


Inlet .0024 (two and a half thou.)
Exhaust .006" (six thou.)
(6) Set the valves:
Set the valves on the cylinder on the COMPRESSION stroke. Put the wring wrench on the locknut on top of the valve, and turn it anti-clockwise. It will be tight. Turn it about one quarter turn, and keep the wrench on it. Then, using the crescent wrench turn the square headed screw either in or out depending whether you need more or less clearance. We are talking about fractions of a turn here. Then lightly lock the locknut, holding the square headed screw with the crescent wrench so it doesn't move, and check the clearance. Repeat until it's exactly right. When it's exactly right, tighten the locknut. Recheck.
(7) Rotate the engine one revolution exactly:
Shine the flashlight into either sparkplug hole and rotate the engine slowly so that the piston goes down once and comes back up. Stop when it's at Top Dead Centre.
(8) Now do the other cylinder:
Check the gap and set if necessary the other cylinder's valves
Repeat steps (5) and (6) for the other cylinder.
(9) Button it up:
Replace the valve adjustment covers, making sure to keep the gaskets or o-rings in place, the bike will have one or the other.
That's all there is to it!

Apr 30, 2010 | 1982 Yamaha XJ 650

1 Answer

How do you remove timing chain and re-time eng


If you need to remove the cylinder head, here's how. To remove the cam chain, you've got to also remove the left crankcase cover and flywheel.

First, you need to turn the engine over until the piston is at top dead center (TDC) of the compression stroke. Begin by removing the two round covers from the left side of the crankcase cover. Also remove the four tappet hole covers from the cylinder head cover. Turn the engine (in the normal direction of rotation) and watch the intake valves open - and close, then see that the exhaust valves open, then close. Now align the 'T' on the flywheel with the notch in the inspection hole. With all of the valves closed, the engine is at TDC of the compression stroke. Do not begin removal of the cylinder head cover until this is done - to avoid damage to the cover.

With the cylinder head cover removed, you will find two bolts attaching the cam chain sprocket to the camshaft. Turn the engine until you can get a 10mm socet onto the heads of the bolts and remove them. The sprocket will come loose and slide down onto the camshaft, enabling you to remove it an the camshaft.

Upon reassembly, set the cam timing by first setting the engine at TDC. Then, align the two marks on the cam sprocket with the gasket surface on the cylinder head. With the engine at TDC and the marks lined up, the cam timing is properly set.

Oct 24, 2009 | 1985 Honda XR 250 R

1 Answer

How do u remove timing chain and re-time engine (1984 xr 250 r)


If you need to remove the cylinder head, here's how. To remove the cam chain, you've got to also remove the left crankcase cover and flywheel.

First, you need to turn the engine over until the piston is at top dead center (TDC) of the compression stroke. Begin by removing the two round covers from the left side of the crankcase cover. Also remove the four tappet hole covers from the cylinder head cover. Turn the engine (in the normal direction of rotation) and watch the intake valves open - and close, then see that the exhaust valves open, then close. Now align the 'T' on the flywheel with the notch in the inspection hole. With all of the valves closed, the engine is at TDC of the compression stroke. Do not begin removal of the cylinder head cover until this is done - to avoid damage to the cover.

With the cylinder head cover removed, you will find two bolts attaching the cam chain sprocket to the camshaft. Turn the engine until you can get a 10mm socet onto the heads of the bolts and remove them. The sprocket will come loose and slide down onto the camshaft, enabling you to remove it an the camshaft.

Upon reassembly, set the cam timing by first setting the engine at TDC. Then, align the two marks on the cam sprocket with the gasket surface on the cylinder head. With the engine at TDC and the marks lined up, the cam timing is properly set.

Before calling the job done, make sure to adjust the tappet clearances to .002" on the intake and .003" on the exhaust valves.

Oct 24, 2009 | 1985 Honda XR 250 R

1 Answer

2.5 year old, 15.5 hp Briggs cranks but wont fire


make shore that the valves are not rideing no tappet clearance back both roccers of and try for comp there has to be a tappet clearance for there to be comp or set the inlet at 5 thou and the exhaust at 10 thou on the comp stroke .horizontal b/s have a very good past very good engine in the past

Jul 13, 2009 | Briggs & Stratton 66set Panzer Tractor...

1 Answer

Setting the tappets.


pull the plugs and using a piece of soft wire insert the wire into the plug holes
remove the rocker covers and turn the engine over slowly watching the wire move up and the rockers movement at a point you will see the wire stop coming up and then start going back down
move the crank back and forward until you get no movement and that is TDC
At the point one set of valves will be fully closed and the other set will be in the rocking position ( movement either way allows the exhaust to start closing and the inlet start to opening at the same time
that is when you adjust the valves clearance ( tappets ) on the closed valves
having done that turn the engine over 360 degrees and the valves positions will reverse so you can adjust the next set
when at tdc from the wire check what letter is at the pointer and that will be TDC letter
the D and S will be italian for tdc and ignition

May 31, 2017 | 2002 Moto Guzzi California 1100 EV

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