Question about Cars & Trucks
How do i check the timing marks
The timing mark will be either on the harmonic balancer or in a hole in the bell housing. If in the bell housing there will be a pointer that will point to marks on the flywheel face and the timing mark will be ING or a number like 15 or 17 or 21 . This is the number of degrees before TDC that your engine has to be set on for correct timing. You will get this number from a work shop manual or a dealer service centre or a diesel pump repair shop. The same on the harmonic balancer . Unlike petrol engine s where you can alter the ignition timing, with a diesel, that required timing mark is exact and any attempt to vary it ( advance - retard ) will result in engine damage . If the spec\'s say 17 degrees then that is it.
Posted on Mar 18, 2014
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Posted on Jan 02, 2017
Posted on May 17, 2011
Testimonial: "SPROCKET LOOKS SMALL IN THE PICTURE DIAGRAM FOR THE INJECTION PUMP.SHOULD'NST BE ALMOST AS BIG AS THE CAM SPROCKET.HOW ABOUT THE MARKS FOR BALANCESHAF"
SOURCE: where to find timing mark
easy keyway pointing to the top of the engine ,i think their may be marks on the flywheel on the later york engine as their was marks on them at the front of the engine when i worked on the assembly line in 1970 .cant remember the pump timing as the older engines had a inline pump on them and their was a plug at the back of the pump housing that had to line up with a dot on the back of the gearwheel ,long before your time this though ,but the pump timing was about 12? if i remember rightly for an indirect engine and 18 for the dorset engine and 22? for the dorset turbo (Ford D series)Watch when you turn engine over in case you hit the valves ,make sure pistons down a bit then line head timing up then bring the pistons up to TDC
Posted on Jul 02, 2011
SOURCE: timing marks trooper 1985 mod
Refer to Figures 1,2,3,4 when performing 17-step timing procedure for 1981-1985 Diesel Engines.
Fig 1. Injection pump and camshaft alignment marks - Diesel engine.
Fig 2. Removing the timing belt holder - Diesel engine.
Fig 3. Injection pump alignment marks - Diesel engine.
Fig 4. Tensioiner Pulley Bolt Sequence - Diesel engine.
Procedure - Timing Belt replacement.
1. Disconnect the negative battery cable. Drain the cooling system.
When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
2. Remove the timing belt cover. Remove the injection pump sprocket flange.
3. Using a prybar, remove the tension spring from the timing belt tensioner.
When removing the tension spring, avoid using excessive force for the spring may become distorted.
4. Remove the tensioner pulley bolt and the pulley.
5. Remove the timing belt and discard it.
6. Rotate the crankshaft to bring the No. 1 piston to TDC of the compression stroke.
7. Align the timing marks on the injection pump sprocket with the camshaft sprocket; the marks must be facing each other.
8. Using a new timing belt, install it in the following sequence: crankshaft sprocket, camshaft sprocket and the injection pump sprocket; the slack must be between the injection pump and camshaft sprockets.
9. Install the tension center and the tension pulley so the end of the tension center is fitted against both pins on the timing pulley housing.
10. Hand tighten the nut so the tension pulley can be rotated freely.
11. Install the tension spring and semi-tighten the pulley nut to 22-36 ft. lbs. (30-48 Nm).
12. Rotate the crankshaft 2 full turns clockwise to seat the belt and further turn the crankshaft 90° beyond TDC to settle the injection pump.
13. Loosen the tension pulley nut to take up the timing belt slack. Tighten the tension pulley nut to 79-94 ft. lbs. (108-128 Nm).
14. Install the injection pump sprocket flange; the hole in the outer circumference of the flange should be aligned with the triangular timing mark on the injection pump sprocket.
15. Rotate the crankshaft 2 full turns clockwise to bring the No. 1 piston to TDC of the compression stroke. Make sure the triangular timing mark on the timing sprocket is aligned with the hole in the flange, then, measure the timing belt tension; it should be 33-55 lbs.
16. Install the timing belt cover.
17. Connect the negative battery cable.
Posted on Jul 04, 2011
Mitsubishi uses little dots for timming marks and usually line up with other dots one the head or block.
Posted on May 29, 2012
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