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Hi Alex, The firing order is 1-3-4-2. When fitting the injector pump I hope you noticed the match marks for timing. When fitted and aligned the engine will be at TDC firing on one. To identify # 1 on the pump, connect the fuel supply and bleed air from the system and rotate the engine one and three quarter revolutions by hand, having someone watch which outlet ejects fuel when passing TDC completing the second rotation. That will indicate number one piston. Follow the firing order for the remaining three. Regards John
If it is a 'squealing' noise it's probably the alternator/power steering drive belt. Before you turn on the engine in the morning, lightlt smear or spray some oil on the inside of the drive belt to lubricate it. If the squealing stops/disappears, then that's the fault ..
That squealing noise can be caused by an incorrectly tensioned belt, or a worn belt. Replacement is the only option.
The other frightening sounds can best be described as 'rattles' or 'tapping'. When a car stands overnight all the oil drains back into the sump (oil/pan).
There are two things (usually) that can be cause the rattle/tap:
1. Because the oil hasn't been pumped around the system, at start up worn big end bearings can rattle and tap on the crankshaft until the oil 'fills the gaps'. The tapping/rattling goes away as the engine warms and oil is pumped around the lubricating system.
A 'bottom end tapping' is a symptom of worn big ends (they are bearings at the bottom of the piston and fit around the crankshaft).
2. A rattle/tapping from the top of the engine can either be a worn camshaft or 'lazy tappets'. Again, when the engine warms and oil gets to the camshaft and tappets (also called 'hydraulic lifters) the noise will disappear.
If your car has this rattling/tapping noise - identify whether it is coming from just under the rocker box (ie the camshaft/tappets..) or the bottom end of the engine (big end bearings).
If the noise is coming from the top of the engine, try an oil change with a can of thick 'additive' included. A lazy tappet (lifter) isn't too much to worry about. A worn camshaft will affect the performance of the engine, though continue to do its job. An oil change with an additive included may help in quitening things down.
A bottom end tap/rattle (or 'knock') - the sooner that is sorted out the better.
Most likely cause is a hydralic tappet. Mits are well know for top end noise. Note we are talking about a tapping or clicking sound not a knock. You can try using an engine flush product if the noise is getting bad and then changing your oil. Generally if the oil is not changed regularily eventually the tapping noise gets happens.
(you need a set of timing tools to do this)you need to place timing pin in engine block located drivers side just above the sump you need to set pistons at tdc to do this turn crankshaft clockwise till the crank stops against the pin then you need to take off the rocker cover place cam setting bar in the end of camshfts you then need to loosen cam sprockets dont remove undo tensioner remove belt replace with new starting at crank anticlockwise tension up tighten cam sprockets remove bar and pins 2 rotations by hand to see if everything ok then start
If the tapping sound is from the top , then most probably you are not using the specified engine oil , please try to replace the oil with Castrol Magnetic or Edge!
If different sound , please let me know