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Polaris 455 diesel head torque settings and cam timing

Ai have a polaris 455 diesel atv and after replacing a blown head gasket i need the head torque settings and how to check/set the cam timing correctly. thanks john

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  • Anonymous Mar 11, 2014

    added oil, the engine was very hot. battery light is on.

  • Anonymous Mar 16, 2014

    polaris d bat 400 diesel quad atv difficulty selecting forward and reverse auto gears

  • Anonymous Mar 16, 2014

    gears grind when selecting forward and reverse

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Buy the factory shop manual

Note these engines appear to spin a bearing I think on the vibration damper countershaft and blow through the side of the engine. If you hear any different noise out of the engine, shut it down and take it apart. Mine started at about 2000 Hours

Posted on Feb 06, 2009

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I have a 97 Polaris trailboss 250 that will not start for nothin


Hi, William here are some other things to look at just in case your timing checks out o.k. and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a load test if necessary, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Bank angle sensor tripped and ignition/light key switch not cycled to the "OFF" position and then back to the "ON" position.
5. Faulty starter button/switch.
6. Faulty kick stand or clutch pull in switch/sensor.
7. Security alarm needs a reset.
8. Starter control circuit, relay, or solenoid faulty.
9. Main fuse or circuit breaker may be blown or faulty.
10. Electric starter shaft pinion gear is not engaging or over-running starter clutch slipping.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
ATV Connection
93 Trail Boss Polaris ATV Forum
http://www.thequadconnection.com/Manuals/1996%20-%201998%20Polaris%20All%20Models%20Service%20Manual.pdf
Polaris OEM Parts Accessories
http://pi54.com/corp/manuals/Parts/9914959r01.pdf
http://cdn.polarisindustries.com/polaris/common/parts-manuals/9915754r02.pdf

May 06, 2016 | GAS Motorcycles

1 Answer

Replacing the head gaskets and valve cover gaskets, how do you set the timing for the over head cam


Set the engine to top dead center for number one cylinder. As you remove the rocker covers, take pictures of their position. When removing cam gears and heads DO NOT ROTATE the engine even the slightest amount. You can then reassemble the engine without re timing it. If you move it you will need a shop manual and some time to get it right. Good luck.

Mar 01, 2014 | 2003 kawasaki VN 800 Vulcan Classic

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Just put new piston and rings in my 1993 liquied cooled polaris 350cc ATV and after starting, right away it starts to bubble back in to my overflow bottle. With in 3 min. it starts to overflow. checked to...


you may have a cracked cyl. head or warped head...a crack in the cyl. is rare but does happen.....have a quality engine or machine shop inspect them for you..

Apr 10, 2010 | 2003 ATK 260

1 Answer

2006 Triumph Bonneville T100 leaky head gasket


G'Day,
For the price you have been quoted, it may be that it just requires to be re-torqued to pull up the leak. Or even just a resealing of the cam/valve gear covers. Changing the head gasket would be somewhat more work/expense. This is a fairly easy task to accomplish if you have some spanner experience, a torque pattern to follow, and the tools to do it. If you have no tools, then it could cost you $200 for a cheap torque wrench, socket set, other tools you will need.
Any time you start tearing down a motorcycle, good idea to go get yourself should get yourself a workshop manual(click here for a Haynes $42.95)to start. This is where you can get knowledge on how to strip down the bike to the point you can do it, and also correct sequence / procedure for torquing the head to spec. You would need to pull the tank, seat, and so on, good experience if you wanna get your fingers dirty. Get into it if you are game.
regards robotek

Apr 09, 2010 | 2006 Triumph Bonneville T100

2 Answers

How do i replace the head gasket on my Suzuki LS650


To replace the head gasket disconnect the battery, remove the tank, remove the rocker cover. Manually turn the crank shaft until the engine is on top dead center compression stroke and the lines on the cam shaft gears are even with the top of the cylinder head. At that point evenly loosen the bolts that hold the cam shaft. Do one cam shaft at a time. Before you remove the second cam shaft tie a piece of wire to the cam chain then let the chain fall into the hole after removing the second cam. Loosen the carburator mounts and slide the carburators back so they are free of the engine. Now you can evenly loosen the head bolts and then remove the head. Check the head and cylinder for signs of warping or why the gasket needs to be changed. When you replace the head gasket make sure the gasket fits over the guide pins. Reassembly is essentially reverse of the disassembly. After you get the head torqued to specs, you will be glad you fought that wire attached to the cam chain when you start to install the cams. Make sure each cam goes back from where you took it from and the lines line up like they were before you took them out. Don't forget to install a new gasket on the rocker box.

Nov 05, 2009 | 2001 Suzuki LS 650 Savage

1 Answer

Blown cylinder head gasket


are you sure the cylinder head gasket has blown and not the rocker cover gasket this is at the top of the engine its rubber if it has it takes just a few 10mm bolts to undo then replace the gasket and no need to time up'.if you have the head gasket blown very rare you should buy a workdhop manual

Nov 03, 2009 | 2008 Honda XR 125 L

1 Answer

The cylinder head gasket has blown. how do i change it and do i need a torque wrench?


This is one of those times I recommend you load it up and take it to a Honda shop. There may be more than a blown head gasket. And by the fact that you ask if you need a torque wrench we can tell you are not used to jobs of this nature. You most definitely need a torque wrench, torquing a head is one of the most important things about a bike. Spend the money and know it is done right.

Nov 03, 2009 | Honda XR 125 L Motorcycles

1 Answer

What is the head bolt torque on a 1990 suzuki lt250r quadracer changing head gasket had head resurfaced need to know the proper torque thank you just put in rm 250 no category for atv


The 8mm head bolts are torqued at 19 - 21 ft/lbs.
any smaller 6mm bolts are torqued to only 6 ft/lbs
like those on the lower cylinder.

Aug 20, 2009 | 2003 Suzuki RM 250

2 Answers

I need the timing spec for a 1994 yamaha timberwolf 250


no dont worry about that # what type of machine is it? what your gonna need to do is find the mark on the fly wheel some have a single mark and some have two if you have the cover off put it on there should be 2 access holes take the covers (small and larger probally flat head allen key) turn the engine counter clockwise till you line the second mark you see in that little window if it has two there should be a mark to line it up with, that is top dead center now there will be marks on the cam sprocket thatneed to get lined up also thats where i need to know what kind of machine it is but somehave an arrow some have two lines that get lined up with the gasket surface. if you post it i can help you finish

Dec 19, 2008 | 1990 Yamaha TZR 250

2 Answers

Torque setting


Ok, lets see- I still have my old official shop manual for that bike...Cylinder head nut torque is 16-20 ft lbs,Cam sprocket bolt torque is 12-17 ft lbs, Valve adjuster cover torque is 7-10 ft lbs, Cyl head cover torque is (6mm)- 7-10 ft lbs (7mm) 9-12ft lbs, Rocker arm adjuster nut torque is 11-13 ft lbs.

Nov 20, 2008 | 1984 Honda FT 500

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