Ed to know what marks to use on the exhaust cam there are 2 single dots and a double dot should i use the double dot to line up the cam timing\

Firstly did u remove cams,if you did,align the 2 dots at the rear of cams then tighten cam bolts, the LH side cam will be close to notch on timing cover,on the RH cam you must turn cam until they align to the 2 notches on cover and cam gear,you will see a single dot and then 2 dots about 10 cm apart,use that dots to align,then align your crank,you will see it from top when you look at the crank gear that holds the cam belt in

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.

looking from the front of the engine , the pulley mark on the LH cam pulley lines (12o'clock) up with the centre of the 2 notches and the RH lines up (12 o'clock) with the single notch. On the crank one mark will be lined up with a single notch at about the 1 o'clock position and another at the 3 o'clock position lined up with a series of dots. Ensure that you have the piston on TDC no1 first and align the crank marks first.

Exhaust camshaft gear and Intake gears have dots on them, chain has colored links. Align colored links to dots or count 14 links from ex cam dot to intake dot. Make sure that the mark on the cambelt side is set first on ex side. Small hole on ex cam gear (cambelt) side to line up with mark on head.

is this the one

Welcome to FIxYa.com

Need the year and model and size as in liter engine in order to look this up for you to send pic and info. Engine number does not work in Alldata, Lee

Thank you for using FixYa.com

Regards, Lee Davidian

4 Cylinder diesel(4JX1) :
1 - Timing mark
2 - Cam pulley
3 - HP Oil pump pulley
4 - Tensioner pulley




6 Cylinder petrol:
Align crank(C) timing notch mark (1) to oil pump mark.
Align cam pulley(L+R) marks(3) to cylinder head marks
The cam belt has 3 marks, 2 lines and one mark that is actually a row of dots. Align the dots to the crank pulley groove mark(2) and align the other 2 lines to the cam pulley marks. Using a clothes peg to hold the belt to the cam pulleys works wonders to keep it in place while fitting. Please note the arrows on the belt and have them point in the direction of rotation - right to left side of engine
W - water pump pulley
I - Idler pulley
T - Tensioner pulley.

If for some reason you need to realign the cams on each bank :
Standing in front of the car and starting from YOUR left , looking at the cams you should see RE, RI, LI, LE on each of the camshafts.(R for right bank, L for left bank, I for intake and E for exhaust) Right bank camshafts are marked with one dot, left bank with 2 dots on the shaft itself. To align the camshafts to each other each cam shaft gear has a mark on it. Draw an imaginary line between the centre of the camshaft and the centre of the pulley. The alignment mark should be between the two along this imaginary line. The result will be that RI an RE will be at the top of each gear. The same with the left bank.

the 2 single dots on the inside of the gear(side facing the rear of the motor) When the gears mesh together the 2 dots should line up.

Remove the hood bracket bar, 4bolts, then the fan shroud assembly, then the belts, belt adjuster, and timing covers, line up the cam gears, crank gear to the marks , cam has 1 dot, they line up to timing housing 2 dots, (single dot to middle of the 2 dots), crank has 1 dot to mark on the oil pump housing to your right of crank gear, thats TDC. now remove the timing belt tensioner, 2 bolts, and remove the belt, if the pump has leaked, replace the belt, and tensioner if it is NOT metal Pulley, the fibre one will break down from the antifreeze. its a good idea to replace the water pump housing orings behind it, ac bracket has to come off, as the right cam on engine, this not a retiming iussue with the gear. GOOD LUCK. RDJRP

there will be two highlighted or dotted chain links for the camshaft and one for the crankshaft gear, position cam dot/TDC indicator in the 12-O clock position, the two dotted links should be on ether side of cam dot, turn crank dot to the 6-O clock position and line up highlighted link with dot on crank gear, if timing cover is on, then make sure cylinder 1 is at TDC when the two links are at 12-O clock.