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Re: Fitting cam shafts on Volvo 850se 1994 20v 2ltr
There is a special tool that mechanics use for the alignment of the camshaft pullys. It is basically an angle iron straight edge that fit exactly into the camshft grooves.. Just make sure that the engine 's first cylinder is at the top. (Top dead center) before fitting the cam(s) into place.
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Look down to the Crank Shaft Pulley (has a large bolt), there will be a dot/line.
Turns the Crank Shaft Pulley until the gear match up to a Marking on the engine. Then all the rear & front cams should be aligned.
no you check the tip of the rotor lines up with the edge of the cutout on your distributor body .that is the basic adjustment. you move the distributor very small amounts when adjusting the dwell angle when you use the timing light.
I lost you, stupid computer. Anyhow there are 8 different engines for the dodge colt in the early 1990's I can only assume its the 1.4L, 1.5L or 2.4L. The 1.4L & 1.5L the timing marks are exactly the same. The Cam points to 3:00 marks ther. The crank points almost straight up, slightly to the right, mark on engine cover. The 2.4L has 3 marks, The crank has an alignment mark at approximately 10:00, the cam sprocket points straight up at 12:00 and the idler pulley (to the right of crank shaft pulley) points approximately 11:00. They should all have a notch or mark when aligned. The short secondary belt, the crankshaft should be in the same location 10:00 and the balance shaft (to the left) should be at 9:00. This goes on after of course. Rotate engine 2 full revolutions and recheck marks before starting engine.
Here is the trick. Align marks. Put the timing belt on the crank shaft pulley first, and after on the overhead cam pulley. Release tensioner and rotate the crank shaft till the timing belt makes two full circles. Try to align marks, you will be at least one tooth off. Align the crank shaft on the mark, and find out how many teeth you are off at the cam shaft pulley. Count the teeth. Remove the timing belt from cam shaft pulley only. Move cam shaft pulley in reverse according to the number of teeth you counted. Make sure the crank shaft pulley is on the mark. Mount the belt at cam shaft pulley.Rotate the belt two circles and check the marks. Repeate this procedure til after releasing the tensioner, and rotating the timing belt two full circles, the mars will be align.
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.
Hi, this is how to align timing on a 1991 Volvo 740.
There are marks for all three. Cam and Aux shafts have dots on face of outer gear. Cam lines up with mark on rear timing cover(about 1 o'clock). Aux lines up with mark on seal housing (about 3 o'clock) and crank lines up with mark on seal housing (about 12 o'clock). Take care
The balance shaft pulley should be sitting at 4 o'clock, the crank pulley should be setting at 12 o'clock, and the cam pulley should be set even with the edge of the cylinder head at about 11 o'clock. You may have to set the distributor forward or back a little t get it running right.
I hope you've solved the problem by now, but there are alignment marks on the crank shaft (top pulley), idler (lower side), and cam shaft (smaller, bottom pulley) which should be aligned with stationary marks on the timing belt rear cover.
The belt has marks that align with the aforementioned marks (lines). The double marks on the belt align with the camshaft marks and the single marks with the others.
Loosen the tensioner clamp (nut) to allow the spring loaded tensioner to press on the belt and retighten the nut.
Rotate the crank shaft (clockwise, probably two revolutions) and make sure the pulley marks realign to the marks on the cover (they don't have to realign with the marks on the belt).
Rotate the crank shaft a full revolution once the belt is on and check that alignment is preserved.
Periodically loosen and retension the tensioner nut (access through a hole in the cover) to ensure that tension is maintained as the belt relaxes.