Question about 2001 Yamaha YZ 426 F

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Just needing some help on how to assemble top end.

I need to know if I can put together the cams and everything then just bolt on the top end including timing chain and call it good. Another concern is how do I get coolant and oil to the top end before starting it the first time?

Posted by b_grease_mon on

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tombones

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Yes, you can bolt everything on, (12 ft. lbs. torque on the camshaft caps), along with the cam chain so long as the cam chain gear is timed to the crankshaft TDC marks. Pour oil over the cam and rest of the valve galley. The water pump will take care of the coolant as soon as the engine starts.

Please rate this answer. Thanks.

Posted on Apr 08, 2009

  • tombones Apr 08, 2009

    OOPS! sorry about that. Go with 8 ft.lbs torque.

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Can i remove the timing chain tensioner from the top of the motor on a 2000 cavalier 2.2l or is that only with a dual cam?


Hi Friend:

Your Timing Chain Tensioner is located in the Lower Front of your engine.

#1) you'll have to disconnect your negative Battery cable.

#2) Remove the Top Engine cover to give you better access to the Front of Engine.

#3) Then you'll need to remove your alternator and with wiring attached put it off to the Side you might have to tie it with a wire to secure it.

#4) then you'll need to remove your Power Steering Leave the Lines on it and Put it to the sideas well , Tie off if necessary.

#5) then Jack up the front of your car,make sure you Put Good Stands under the car to keep it secure.while you work under it.

#6) then remove the TWO front Oil Pan Bolts Only the very 2-Front ones.

#7) Then directly above the Oil pan front of the Engine you'll see your Crank Shaft Pulley Remove it, You will need a Puller to Remove it.then the Timing Chain Cover, There are Several bolts Holding it on to the front of the Engine.

#8) Remove ALL the Bolts on Timing over, then Take cover Off,It could be a Little Stubborn ,if All bolts are out for sure, Take a Small plastic mallet and Tap the Cover Easily,until it comes off.

#9) Now before you remove anything else there is a Timing Mark on the Cam Shaft and one on the Crank Shaft,NOTE: BESURE you line them marks up,The Cam Shaft Mark should be pointing Straight Down--And the Crankshaft Mark needs to be Pointing Straight up.and Lined up with the Top Timing Mark.If the are Not

NOTE: Rotate the Engine by Hand Turning the Sprockets until they are LINED Up.

Then Take off the Top Cam Shaft Mounting Bolts,then Pull Sproket and timing Chain at the Same Time.

Then Loosen the Chain Tensioner Bolt with out taking it ALL the Way OUT. then remove your Chain Tensioner.

If your this far i Recommend that you Replace The Timing Chain,Cam Sproket and Crankshaft Sproket as well.

If not the Install your new Chain Tensioner,And Just Simply Reverse the Un-Install Directions.To Put All back Together.

Do Replace the Timing Cover Seal. Using Proper Seal Remover and Installer.

Also before you put your Timing cover back on CLEAN the Surfaces of the Engine and the Cover.And Use a Gasket Sealer and Mount to Block ==Lining Up ALL your Timing Cover Bolt Holes. Let it set a Short time a Few Minutes at Least. To prevent Slipping when installing your Timing Case Cover.

1- Last Thing Torque your Timing Chain Tensioner at 89 Inch Pounds.Which rewuires a Torque Wrench.

And Torque ALL your Timing Cover Bolts at 97 Inch Pounds.Do NOT Over Tighten You'll Strip them.

MAKE Sure the Timing Marks are Still lined up.

This will get your Timing Chain Tensioner Replaced. Thanks for using FixYa From: d_hubbs

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I'm sorry to tell you this, but you are going to have to start from ground zero. Take your timing cover back off. Ensure that your NO. 1 Piston is at TDC (Top Dead Center) and that your cam is aligned properly. Once you've done that, put the timing chain back on and bolt everything back together. If your timing is off a little bit, your engine won't run. If your timing is off alot, then your valves will hit the piston heads and cause ALOT of damage.

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Judging by your previous questions,I think this is the info you need.
Setting cam timing with stock cams is relatively easy using the punch mark on the cam gears For stock timing, the punch marks at 9 O'clock on the exhaust cam and at 3 O'clock on the intake cam should align with the top of the head. If stock timing is altered the exhaust cam punch mark will either be one tooth above or one tooth below the top of the head.
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I'm doing this myself, and there are some annoyances. Yes, a service manual is good, however, I consulted 2 manuals and got two different answers. Here is the real deal for the 1996 2.2 vin 4 cavalier.

Remove the right tire and platic sheilds. Remove the tensioner pully, (2 bolts).

Remove the harmonic balencer on the crank shaft, 3 bolts first then the center.

Use a pull hammer with correct thread to pull off the "crankshaft thing" on the end of the crank shaft. Be sure to pull it off evenly. I had to find a bolt with the same threads, cut that off, and tap a fitting for my **** hammer. It's on there good.

Remove 7 (8mm) bolts from around the chain cover. Remove the 2 (10mm) bolts from under the cover. Those two studs also have to come out with a small inner tourqe socket. These are very very easy to strip, be careful. The cover is now free.

It is sealed on tight. There are a couple good places to get a bite on the rear facing edge. You will also have to work from the top and bottom to get it free. It pulls strait out, it is positioned by pins. Be patient, that cover will break.

There is silicon that seals the bottom of the cover. Clean that all off with a scraper and wire brush. Pull off and clean where the gasket seats all around the cover. Clean the cover. Replace the gasket and the outer oil seal that goes around the crank shaft. The only way to get that seal out is to break it. Press the new one in with a vice, do it evenly and slowly.

I've found a good method to get the cam shaft sproket off.... There are 3 slots and a hole. Rotate the cam sproket clockwise till you get the hole to about 9o'clock. Put drill bit or short piece of hard metal (something that won't bend) in that hole and apply some pressure while you rotate another 10 degrees or so. The bit will drop into a hole. Now rotate counter-clockwise and the bit will bind the sproket so you can remove the bolt. Nice huh? I get it unbound by putting a screwdriver between teeth and prying against the crank shaft. Use your imagination.

The timing **** is retarded. And I still havn't found a deffinate answer for everything. The crank shaft makes two rotations for every one that the cam makes. The first crank shaft rotation is the compression stroke, the second is the power stroke. I don't know how to tell the difference.

To get the sprokets aligned, re-install the cam sproket, don't worry about getting it tight. Rotate it clockwise until the hole in the sproket lines up with the ear on the chain tensioner. Now, bind the gear right in that spot and remove it. Now, take that "crankshaft thingy" and push it on by hand as far as you can. Notice the key, and dot on one of teeth. Put the bolts partially in the thingy and rotate it by using a bar or screwdriver between the bolts. Move that sproket until the dot on the tooth lines up with the ear on the chain adjustor. The key will point directly up. Good job. Tap that thingy off the shaft now.

Compress the chain adjustor and put a pin through it. With the cam sproket removed, put the chain on it. Work the chain onto the crankshaft sproket. Slide the cam sproket onto the camshaft. Easier said than done, but it is possible. If you are having a hell of time, use a mirror and check that you are lining it up properly with the pin/key in the crankshaft. I found that leaving a little slack at the top, as opposed to the bottom helps. FYI, when i say little, i mean it. There is very very little slack, but the chain does buckle slightly.

Remember me saying that I have no idea how to tell between power and compression stroke. Now you will hate me. To get mine right, I had to tighten the cam sproket then replace my spark plugs and attempt to start to start the car. I guessed mine right the first time and it ran fine. However, if it ran rough or not at all. I would have had to remove the cam sproket again, remove the chain and rotate the crankshaft sproket one full turn.

When you put this all back together, use plenty of slicon on the bottom of the chain cover. Re-assembly is a snap, or at least is was for me.


Jul 28, 2008 | 1998 Chevrolet Cavalier

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