Question about Ski-Doo Expedition TUV V-800 Winter Sports

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Timing chain jump and caused timing to be off. costly repair. what's the cause and is their a fix so this don't happen again.

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Who told you that the Chain Jumped? This is NOT COMMON and hard to believe that it happened unless you had a Failure Internally.. A Chain Tensioner is the only possible cause if everything is intact...

Posted on Feb 13, 2014

Testimonial: "From what I hear this is not the first Expedition TUV 700 to have timing chain problem. With only 5,000 KM on this machine I am wondering what causes that chain or tension-er to get out of line. The machine is still at the dealer and I am told their might be a bent connecting rod. The machine was idling when the timing went off track."

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What happens when ur car jumps timing and what causes it?


A car with a timing belt will jump time for several reasons, the belt dries out and the teeth strip off the belt, the tensioner or guide wear and fail, the belt can stretch over the years causing it to jump the sprockets. A car with a timing chain can jump because many were made with cam gears that had plastic teeth and they wore out, or the gear was made out of a casting that wore out, or the chain stretched replacement cam gears were usually made out of steel. Bob Bristol Magic Collision


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1 Answer

1997 chevy cavalier no compression in #3 cylinder and wont start


What probably happened is that the timing chain jumped time (common problem) and bent a valve in the #3 cylinder. This will cause the no-start, no-compression issue you state. You will need to repair the timing chain/gears/tensioner and have the head removed and repaired in order to get the car back to operating order.

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P1111 internal valve timing malfunction


On timing belt vehicals this can be the belt has jumped a thooth. and it might still run. On timing chain engines this is most likly caused by lack of oil changes and the timing chain is held tight by oil pressure. even changing the oil now might fix it but the lack of oil changes can ( sludge up the engine) and might require a though flushing or even disassembly to clean up the oiling system. Sure try to flush it first . There are many good oil fluhes on the markeyt and most oil change places are knowledgeable about using them. Most of the time you will need to do all the oil changes you missed and them some to clean the motor out as freash oil is the best way to clean the motor. Change oil and filter run about a day them change it again and run it about a day or two thand then change it again. The code your talking about comes then the cam ting doesn't match the engine timing as it's supposed to if the chain is loose enought to jump the theeth it'll need to be disassembled and reset and if the mileage is high enought the parts rplaced. Peaple don't change thier oil to save money but their just putting off and maybe paying even more.

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1 Answer

1987 Toyota Pickup what happens when a time chan goes


most common thing we used to see on the older 22R engines was the timing chain guides would brake and allow the timing chain to rub on the inside of the timing cover and this would cause a hole to be warn into a coolant passage allowing coolant to leak into the oil pan and then this would cause rod and main bearing failure, also if the chain jumps or brakes all the valves will be bent.

Jun 07, 2011 | 1987 Toyota Pickup

1 Answer

My 17-year old son asserts that his '99 Sunbird (112K miles) broke down several days ago causing him to pull off the road - no additional details - after which he restarted the car and drove home. Next...


If the timing belt (chain ) broke or jumped the car would not have restarted after your son shut the engine off. (The motor would have stopped on it's own.) Timing belts are an issue with most modern cars and if the motor is what is referred to as an interference engine there will be valve damage. The other possibility is that some components from the butterfly valves in intake manifold were sucked into the cylinder head causing damage to the cylinders , pistons and valves. No matter what the cause its going to cost a lot to repair.

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1 Answer

How do you remove the sprocket and clutch assembly


Article: Fixing a Broken Chainsaw

Having a broken chainsaw is an inconvenience. Having one that works when you need it is important! Chainsaws are useful tools for tree pruning, cutting firewood, and carpentry projects, but are not so useful if not properly maintained. It can also cost a great deal of money to get a broken chainsaw repaired. You can save a lot of time and money by repairing it yourself. For chainsaw repair you will need a blanket or large cloth, a chainsaw tightening tool, files to sharpen the blades, and any necessary replacement parts.

My Chainsaw's Engine Does Not Start

If the engine will start at all, you might have a bad starter switch. Check to see that all connections to the starter switch are secure. Is the power cord cut or broken? Check to make sure that you have a proper power line connection. If all checks out except for the switch, go ahead and replace it. You may want to consider whether you are using the appropriate fuel mixture.

My Chainsaw Smokes

If there is smoke coming from the chain, it could be an indication that there is not enough lubrication. Without the proper lubrication, the chain and chain bar can become seriously damaged. Make sure there is oil in the reservoir. When you start the saw, the automatic oil pump should lubricate the chain and bar. To see if this is a problem, hold the saw tip over a light-colored surface, hit the throttle and look for oil spatters on the chain bar. If you see no oil splatters, turn the saw off. Remove the chain guide bar and see if the oil discharge slots are clogged with sawdust. Clean out the sawdust and restart the saw to check lubrication again.


The Chain Skips or Jumps

If the chain skips or jumps during operation, check the engine drive sprocket to make sure it is not worn. If you have a worn sprocket it will not allow the chain to sit properly. Also, check to make sure the chain tension is set correctly. Setting the chain tension is a part of continuous operation. However, a dull or damaged chain may also cause the skipping and jumping.

My Chainsaw Isn't Cutting Properly

If the saw cuts at the wrong angle or shoots out a lot of sawdust, you probably need to sharpen the chain. A dull chain can be very dangerous. It can cause a kickback or chain jump that might break the chain and release pieces that could harm to the operator. If your chain is very shiny, you need to examine each cutter for damage. Use a file to sharpen the cutters.

The Chain Continues to Move or Stops

If the chain continues to move while the engine idles then you should check to make sure the idle is not set too high. If it stops while cutting, see if the brake is engaged.

My Chainsaw Loses Power

If the saw loses power while operating, check to make sure all electrical connections are secure. Any break in current may cause the saw to decrease in power, stall or shut down altogether.

When maintained, chainsaws are a great asset to any tool collection. Consult your user's manual for questions specific to certain manufacturer types.

About the Author:

Oct 05, 2010 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Chain keeps jumping off


when you adjust the tension of the chain, ensure the tip of the bar has upward pressure applied to it. This ensures the tension is correct while in use. Improper tension adjustment can cause the chain to loosen in use and "jump" off the bar. Improper adjustment can also stretch the chain leading to the same result.

please take the time to give this solution a fix ya rated

clarkco

Mar 19, 2009 | Remington Polesaw Wizard

4 Answers

XJ8


The Jaguar v8 does not have a rocker arm or push rods, this is an overhead cam type engine.
4 cams on top of the heads which are driven by the timing chains, which are driven off the crank.
If your noise appears from the lower end, the most common issue is a main bearing in which case the car will need an engine. (the bearings go bad due to lack of oil circulation, the oil pick up tube in the oil pan gets clogged)
If the noise is upper and the car seems to run rough then the upper timing chain tensioner has broken and the chain has jumped causing the timing to be off.
If you start the car and you have a bad upper noise then the chain could be broken and by running the car you definitely will have valve damage.
JPTCAT

Sep 26, 2008 | 1998 Jaguar XJ8L

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