Question about 2005 Qianjiang QJ125T-4A

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Engine i can't find the tining marks at the flywheel and cam shaft

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Clean real well with solvent and check again

Posted on Jan 24, 2013


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Does a 19hp kohler have timing marks?

for the cam shaft yes it should have timing marks that make sure your cam shaft and crankshaft are aligned. the keyway on the flywheel ligns the flywheel up with its ignition cycle obviously but yes the cam has marks for the crank

May 02, 2015 | Garden

1 Answer

Crank and flywhleel timing marks

You can find the timing mark on the end of a crank shaft by looking for an indented dot which marks top dead center.
A flywheel is balanced and does not need a mark. However if the wheel you refer to is a cam gear (one or two gears depending on how many cam shafts your engine has) look for 2 dots with a tooth grove between the two dots. A matching drive gear will have a single dot aligned with a tooth on the drive gear. When put together the single tooth marked on the drive gear must fall into the grove marked the the 2 dots on the cam gears.

If you are just trying to time an engine, the belt drive pulley mounted to the crank shaft will have a single indented line. The line can get filled with dirt so you can't see it. Wipe it clean and fill with grove with something to highlight the groove, as with a white or yellow crayon or a dob of bright paint. Associated with the belt drive pulley, there should be a metal plate with line marks spaced on it, with 0 degrees (top dead center TDC) marked on it, When the engine is running, using a strobe light connected to your number 1 spark plug you will see where the timing mark on the belt drive pulley is compared to the metal plate with the timing marks.

Feb 12, 2015 | Cars & Trucks

1 Answer

Engine timing mark between flywheel and cam shaft

clean and renew mark with chalk so timing light will reflect,or line up marks!

Jan 24, 2013 | 2005 Qianjiang QJ125T-4A

1 Answer

Cam chain timing what mark to line up?

Turn your crankshaft to align the T mark to the cover's mark.Then put the cam shaft so that the mark on it's sprocket is all the way up marking the "toothy" lump on the cylinder's head top.These marks (crankshaft & camshaft) should be exactly on their marks after you have installed the tensioner properly and before you are ready to close the engine.

Feb 05, 2012 | 2002 Yamaha TT-R 125 L

1 Answer

How do I install the cam chain back on the cams of a 2012 ktm sxf 250?

line the TDC mark on the flywheel/crankcasing up , then the cam shaft marks paralell to the cylinder head mating surface then fit chain, fit chain tensioner, take plug out and turn by hand to make sure valves aren't knocking, **** squeeze bang blow! intake fuel, compression, ignition exhaust out

Jan 27, 2012 | 2008 KTM 250 SX-F

1 Answer

How do i time my car with out a timing gun

A "timing gun" is used for setting the distributor/ignition timing when the engine is running. If you are trying to replace a cam timining belt, the timing mark for the crankshaft is on the REAR of the engine on the flywheel and the transmission housing. The cam timing marks are on the camshaft sprocket and you align them with the valve cover mating surface on the cylinder head./

Dec 26, 2011 | 1987 Honda Accord

1 Answer

Does the #1 piston have to be on tdc before replacing the cams in my 2006 harley sportster which is the #1

No, completely ignore any marks on the flywheels. These are for ignition timing only. Align the cams using the mark on the pinion gear and the cams. The pinion gear mark must be aligned with the mark on the pinion shaft. Once this is on correctly, align the marks on the cams to the pinion gear and the other cams. Once the engine is back together. set the ignition timing using the flywheel marks. There is no #1 cylinder, this ain't an automotive engine. You have a front cylinder and a rear cylinder. All timing marks on the flywheel are for the front cylinder. Front cylinder top dead center and Front cylinder advanced timing marks.

Good Luck

Aug 07, 2011 | 2006 Harley Davidson XL 1200 C Sportster...

1 Answer

How do I line up my marks on cam shaft and flywheel to set timing

Hi mate didn't get any info on what bike you are timing but this procedure is simular for most and is specific for WR YZ 250 426 and 450

set piston to TDC (top dead centre) this can be done by spinning the fly around until you can see the (i) mark stamped on the flywheel line up with the marks on the inspection plug hole (engine case) good idea to probe the cylinder through the spark plug hole to confirm the flywheel mark is correct (I have seen several 426) where the TDC mark does not give accurate TDC on piston so worth second guessing this process.

once TDC is set do not allow piston to move from this point on - starting with the exhaust cam with no slack on the cam chain the dot stamped on the cam sprocket should align with the face of head with the cam lobes pointing outward roughly 45 degrees towards the front wheel when this in place

you do the same with intake cam except the cam lobe will face opposite direction outward and the should be a dot aligning to the head

double check before you go further that when you put your finger in the chain tension hole and you tension the cam chain that when all slack is taken from the cam chain that your dots on both cams align with head face and that you still have piston at TDC if all checks out then this is timed set correct so torque all the cam caps back up install chain tensioner and the recheck all fly wheel marks are in correct position and piston is at TDC and the dot on each cam sprocket aligns to the head if it doesn't then re do the process

don't be surprised if this takes a few attempts as it takes the best of us usually at least two attempts to get all marks to align correctly thats why best to check and double check before you bolt it all down then you can adjust just by lifting one cam out and moving one tooth either direction

You have little room to play with and when you start putting chain on the cam sprockets you will find very little extra chain length to play with you may need to wiggle tug and pull both cams together to get them back in each time but go slow and gentle they do go in they just need to be encouraged

I happy to elaborate on any point if you need - good luck

Regards Jamie

May 28, 2011 | Yamaha XT250X Motorcycles

2 Answers

I have a 1994 geo metro & i'm replacing the timming belt but i ran across a problem. the cam shaft pully has two marks on it (1) mark has 60a & the other mark has 80c. so how do i aline the cam...

thats why you line everything up BEFORE taking the belt off. Usually when the timing marks are "ON" the dowel pin or key for the cam will be at the 12 o clock position. Also if you have the valve cover off, both cam lobes for number one cylinder will be pointing down.and both rocker arms loose. it would be a good idea to adjust the valves also.

Aug 31, 2010 | 1994 Geo Metro

2 Answers

5 hrspwr front tine tiller shears crank shaft key when fires..upon starting

What can cause this is a very worn crank shaft keyway, a loose flywheel nut or a worn out flywheel keyway. These are the only causes for a flywheel key to shear. If the crank shaft keyway is excessively worn there is no amount of flywheel nut tightening that will stop the flywheel key from shearing. The only fix at that point is replacement of the crank shaft. The same thing goes for the flywheel keyway... It is worn out the only remedy is flywheel replacement.

The only other thing that causes flywheel keys to fail is a sudden stoppage of the engine. Most of time this only happens to lawn mowers then the operator hits something like a mini tree stump or a large rock.

Thanks for using FixYa,


I have seen both the crankshaft and the flywheel keyways worn to the point that both had to be replaced. In the event that both have failed, the replacement cost with labor if you have it done is a repair shop can be 60 to 70 % of the cost of a new engine.

May 01, 2010 | Garden

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