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D3400 Genset
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3 years 7 months ago #226094
by novavalleycat
Looking to find a mark on the flywheel or thecrankshaft pulley,have no markings on either,how do I know that I am on number 1 top dead centre ?
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3 years 7 months ago #226098
by neil
The only mark I'm aware of is on the front surface of the flywheel and is accessed by small cover adjacent to the oil filter. An alternative method to find TDC on #1 (and to verify that your flywheel is correctly mounted) is to remove the valve cover, rotate the crank in the normal direction of rotation, look for the #1 valves to be rocking, then advance another 360 degrees (at which point #4's valve are rocking I think). If you find the point at which #1 is rocking, then look through the sight hole for the markings. You may need to wipe crud off the flywheel. If you clean it and apply a paint pen to the marks, it'll be easier to find again
Cheers,
Neil
Pittsford, NY
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3 years 7 months ago #226213
by trainzkid88
the rough rule with most 4cyl engines that have a 1342 firing order which is the most common.
is when the valve of no1 are one the rock 4 is on tdc on compression stroke.
note not all 4cyl have that firing order some are different.
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