where are the timing marks on diesel pump on a 4630 John Deere tractor
On the injection pump gear are timing marks for 3,4 and 6 cylinder engines as the same gear is used in all the engines. To time the pump align the mark with the correct number for the engine with the center of the crank shaft and the center of the injection pump center. Timing should be 10 degrees before TDC on cylinder 1 The injection pump gear has 48 teeth with each tooth representing 7.73 degrees.
If it is Diesel they dont have any a special tool is required to lock flywheel, camshaft and injection pump.
There is a cover on the pump that will reveal the pump marks. The engine marks are on the rear housing and flywheel.
The top timing marks (Cam and injection pump) are easy to find. The cam has a hole for a timing pin to be inserted, and a mark on the pulley. Similar for the injection pump, there's a mark on the sprocket. These marks align with factory white marks on the belt (I used a Gates Powergrip one) The bottom pulley is a pig to align, as the serpentine drive belt pulley is not keyed to the crankshaft, so you need to get this off, set the timing at TDC, and MARK EVERYTHING CAREFULLY before removing the old timing belt. Hope this helps, Paul.
The injection pump was improved from the B type Bosch injection pump to the P type.
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There are 3 timing marks to consider on timing the Mazda r2 just like any engine. crank timing, fuel injection timing and the valve timing. these 3 have markers to align. The crankshaft have timing marks on the pulley pointed by a pointing rod. 4 lines marks the timing. the crankshaft is dead center on the first cylinder whene the pointer is pointed on the center of the foul lines. The injection pump is marked by a line on the pulley and the notch on the plate of the front cover. The camshaft is marked the same way. Be sure that you rotate the pulley clockwise to align these marks to ensure tightness of the timing belt.
There are two timing settings on the LD28. The injection pump has marks on the crank and pump pulleys. The belt has two marks to line up with the marks. If you are reusing the timing belt the tooth count between the marks is twenty cogs. These are aligned with the pulley marks up. If you need the cam driving chain procedure it would require a diagram to make it easy to follow so re-post and I will try to educate myself to do that. Good luck.
The degrees of injection pump timing of nissan straight six diesel engine is 90 degrees.
timing marks with a y on both gears one tooth on injection pump gear one mark for two teeth on the cam gear. must be line up on # 1 cly tdc
injection pump crankshaft camp