Timing mark on crank pulley doesnt match up with one on cam pulley. back firing thru carb. what do i do?

All crankshaft pulleys have a timing mark. However, the actual marks can be different between manufacturers. Some have a notch cut on the rim of the pulley others have an arrow or a Dot stamped or moulded on the face of the pulley.
If your replacing a belt, line up the Cam marks and carefully examine the Crank pulley. You should be able to find the marks for the pulley and it's matching mark on the engine block. Some timing chains use marks on the pulley and marked links on the actual chain. I think yours might be a plain round dot or dimple on the raised face nearest the chain teeth.
*Note* The matching crank marks might not be at TDC on the actual pulley.
Some pulleys are stamped with extra marks to help set the advance and retard on the engine. Give the face of the pulley a good clean with a wire brush as sometimes dirt and surface rust can hide the mark.

The engine may have jumped timing...which means that the timing belt (or chain and gears) needs to be replaced.

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.

wOW NO YEAR STATED, 89-99> n o caar stated either,
so I guess G16a or G16b engine.... why must i guess.... lots of 1.6 by suzuki made.....
nothing, its free running, most G16s are.
cant speak for all 8 cams sold world wide, but stock USA
its free running. why not put the crank at TDC #1 firing
and turn cam by hand and feel, (reality) look ma, no hitting....

that warning is just Haynes (junk book) stating what is printed
on all real SUZ. OEM FSM books, it states this.
http://www.fixkick.com/t-belt/interference.jpg

and is a worldly warning, on all engine they sell world wide all 56 engines sold.

most G16 are free running SOHC , usually are and rare DOHC.
most authorities, all that ive seen and seen most all mimic
the above factory warning, but what else can they do..
they read it and its CLEAR , no?

now your question, sure it dont say what to do
after all they dont know where you left the cam,

if super paranoid, (been there)
we do this,
put crank TDC, mark, (fires every 180 degrees it does)
the turn pulley to 90degrees, this puts all pistons 1/2 up.
now drop the head on to block with , cam cog with E mark at 12pm.
this is #4 firing.
now back the crank up CCW 90%
now #4 is firing.

easy huh> ?
note how the G16 has 2 heads, and are done DIFFERENTLY.
http://www.fixkick.com/t-belt/tbelt-index.html#Tbelt-main

if not paranoid?
put crank to TDC mark, 0deg
put cam cog to E mark up(16v). or pimple mark up(8v) 12pm
there is a 12pm mark on top back of cam cog
this is #4 firing, an is where all G16s are timed. (ALL)
end story.
there are false marks ,fully documented in link for 4 engines.
(they changed marks 4 times)

Back fire is only caused by intake valve being open when a spark plug fires on a cold engine.
Recheck timing marks of cams where the drive sprocket notch of each cam shaft aligns with the cam cap mark at the rear of the head.

It has been known for the crank sprocket to come loose on the crank nose and timing will be off if this is so.
.

It's easy to line up from the crank pulley (Start from btm). So you can turn the cam pulley to fit/Match it mark.

Mai Lor

Hi, the crankshaft marks are on the belt pulley and timing cover, so you have to mate it up to see them. The cam sprocket mark goes on the bottom, and aligns with another mark on the timing cover. There is a plug you pull out and hole to look thru to align the cam sprocket/shaft.








Rotate the engine so that No. 1 cylinder is at TDC on the compression stroke. Check that the timing marks are aligned on the camshaft and crankshaft pulleys. An access plug is provided in the cam belt cover so that the camshaft timing can be checked without removal of the cover or any other parts. Set the crankshaft to TDC by aligning the timing mark on the crank pulley with the TDC mark on the belt cover. Look through the access hole in the belt cover to make sure that the timing mark on the cam drive sprocket is lined up with the pointer on the inner belt cover.

With the belt off and the tensioner pulley pushed back, you will need to set cylinder 1 (far passenger side) to top dead center. There is a mark on the block you can see just behind the crankshaft gear that needs to be aligned to the mark on the crankshaft gear. CAUTION NOT TO TURN THE CAM PULLEY TOO FAR IF ANY PISTONS ARE AT TDC, they will contact the piston on this motor. turn the crankshaft gear forward or backward 1/4 turn off of TDC when you move the cam pully. Once this is done, you will need to set the camshaft pulley to a poorly designed mark on the cylinder head. (it is the corner point of the casting for the cylinder head, it forms a triangle at about the 10:00 position when looking at the cam pulley). Install your belt, it will be tight even with the tensioner pulled back so making sure it doesn't cause either of the gears to move off their marks. Once it on recheck the timing marks upper (cam) and lower (crank), release the tensioner, put your other belt on and you're done. http://www.mivec.co.nz/tech/4G9x_Engine_Manual.pdf

You did it the right way. If you tried to make a full cam revolution you would have hit the pistons with the valves. Put the lower timing cover and crank pulley back on. If the cam marks are aligned right and the mark on the lower timing cover lines up with the mark on the crank pulley, you're good to go.

gregorykilke: your engine has several references if you are describing the same vehicle. The 1996 KIA Sportage has a SOHC engine and was the last year to use one before they went exclusively to twin cams.
The timing marks are as follows: On the crank, position the crank to where the woodruff key is in the 12:00 position. There is a metal plate with a notch behind the gear. If you look closely at the engine behind the plate, thought the notch, there should be a small "ARROW" which should fall within the notch. If lined up properly, the #1 piston will be at TDC.
On the top end of the engine, your cam gear is numbered 1-2-and 3. Position the cam to where the #2 on the gear is at 12:00. On the back side of that gear, should be a mark which should be running in line with the # 2 and it is the "Match mark which you line up with the small arrow or "V" on the cover.
A word of caution! This is an interference fit engine which means it BENDS VALVES IF YOU DON'T HAVE THE TIMING CORRECT AND YOU HAVE BEEN SPINNING THE ENGINE OVER!
IF>>>you are lucky, you might not have had the timing too far off and the valves may be fine, but exercise EXTREME caution when setting up the valve timing.
One way to avoid bending valves, is to make sure none of the pistons are at or close to TDC. This way, you can roll the cam in position and then watch which direction is going to bring the #1 piston up and whether it is rotating the engine clockwise or counter clockwise to bring the piston to that position , it won't harm anything. IF you feel any resistance at all STOP!!!!!! because the timing is off and you will bend valves.
Make sure the tensioner pulley bearing turns smoothly and makes no noise. DO NOT WASH IT WITH SOLVENT OR SPRAY IT OFF WITH CARB SPRAY! The solvent will get inside the sealed bearing area and contaminate the lubricant causing a premature bearing failure and a potential disaster for your engine!
Should you need further assistance on this subject, just ask and I'll do what I can to help. The belt tension is also CRITICAL!
Take care guy, Give the folks at FIXYA some input if I am doing you any good or if I have helped anyone else, write in and let them know. They want feed back. GOOD LUCK!