Consequences of breaking abalance shaft belt???

K so yetserday i was drivin my car to work. i took it to about 5500rpm's in second gear then let off as i hit the brakes and clutch for the next red light. as soon as i hit the clutch thoe.. the car started spuddering for about 2 seconds then died... so i got out and pushed it to the side of the road. poped the hood for a quick inspection and saw a piece of belt laying on the valve cover. since ive seen all the belts on my car except for the balance shaft one i assumed it was that. So i called the tow truck brought her home, started taring her apart. im at the point of getting the crank pulley off but it looks like the balance shaft belt is wrapped around the inside of the pulley... it just wont budge after u take the 4 bolts out. is there a puller i need or should i try prying it off? but anyways.. im just wondering... is there any damage to the engine since i broke the b/s belt or... is it just line the marks up and slap a new belt on and im good? thanks for any help guys!!

depends. Often, they will misalign the timing belt and you'll skip timing and ruin some valves. Take a look at your timing to make sure it's perfect before you just replace the BS belt and go. You might want to look into a BS belt removal kit too.

I would just go without the belt, alot less hassle in the long run. Just make sure you get the one with the oil grooves or you run a risk of killing the oil pump.

I would turn this into a full tbelt job, with or without BS removal. It's a pain in the ass to do BS removal with the motor inthe car. The front is easy, just leave the belt off, but you can't do that unless you rmove the rear shaft, which is where all the trouble is.

The other thing to consider is why did the front bs belt get thrown. More often than not, its because the front bshaft seized up. It spins somewhere around 15k rpm or higher even. If that's porked, you have no real choice but to do BS removal.

"porked"

lol, must be a northern thing?

LMAO, it just might be.

so basically.. what the plan is. drop the motor out? check to see if the timming is still correct on the timming belt. pull out the balance shafts with this removal kit. put the motor back in and i should be good??? I also am planning to change the timming belt while doing this because the old one looks pretty haggered.

Is it worth dropping the motor for to get the balance shafts out, or would it be easier to just struggle to get um out with the motor in the car? Also. where do i buy the b/s removal kit with the oil groov's from. any local parts store?

you dont need to pull the motor but it would be easier to work on

ok. well.. sounds like all the problems are solved! but one, how in the bluw hell do i get that fukin crank pulley off!!!!????

4 bolts and it should slide right off

Just wondering how the hell you think its your BS belt sitting on the valve cover? You not running top timing cover for cam gears? Not to metion it would have to clear the water pump and all the other shit, unless some freak thing the timing belt brought it up. But not likely i do not think.

Look at what im talking about here.

http://files.automotiveforums.com/gallery/watermark.php?file=/503/122544Picture_016.jpg

no, i got the timming belt cover fully on. but u can see the belt popping out like 5 inchs and torn behind the crank pulley.so id assume it blewout by the crank somehow then rod up through the alternator belt. and just by real realy luck. the chunk on top the valve cover had a part number on it.

The crank sproket comes off by that huge bolt in the center and you need a slide hammer to get it off after the bolt is out.

k so i got the pulley off, took the t-belt cover off.. and yah there was no belt on the b/s sprocket. the balance shaft gear turned freely so im pretty sure the shaft's not siezed. unfortunetly when i lined the 2 timming marks on the cam gears up. the crank looked about 45 degrees off from the t-mark on the t-belt cover... thats how i check to see if its in time right? im also pretty sure when i turned the motor by hand i heard a valve hit a piston.. im guessing its time to rebuild the head?? this is the first time with all this timming shit for me.. so correct me if im wrong on anything.

The timing mark on the balancer match up pretty good to the make on the cover. If a valve hit you could feel it when you turn it over like there would be resistance you could feel

k so... what am i suppose to like the crank up with to se if its timed right? im reading in my hayne's manual that i have to line the 2 little marks on the top of the crankshaft pulley up with the t on the t-belt cover. and the 2 timming marks on the cam gears should be lined up if its in time. am i reading this right? or am i just an idiot?

the cams should look like - - that with the makes lined up and the crank pully line should like up the the T on the timing cover, or you could put a screwdriver in #1 cylinder where the sparkplug goes and watch it for top dead center and look where the cam marks are then

im also pretty sure when i turned the motor by hand i heard a valve hit a piston.. im guessing its time to rebuild the head?? this is the first time with all this timming shit for me.. so correct me if im wrong on anything.


Not just the head, if it had been hitting the pistons you might as well consider buying a new set, you might as well just count on rebuilding the engine. When you get the head off make sure the dome of the pistons aren't damaged.

k. so i got the #1 piston to top dead centre. unfortunetly the cam pulleys timming marks looked off by a good 15 teeth. or how ever many degrees that is. so i guess im pullin the motor... good thing this dsm's in my hands or it just mighta been time for the junk yard. thanks for the help thoe guys!

ugh, i hate to bring this forum up again... but theres a thought in my head that maybe the valves are still good, and i really dont wanna take the motor out and apart then find out thats not the problem so anyways, the mechanic here told me to take out the plugs and turn the motor over to see if i could hear the pistons hiting the valves. so i did. and i dont hear a damb thing, the motor seems to crank freely. Could it be i got extremly lucky and all the valves are still good even thoe im pretty sure the timmings off a good 45 degrees and the belts still on turning the valves with the crank? this is really starting to bug me. also. if that is the problem. should it fire once i get the timming set up right without a balance shaft belt on or do i need the balance shaft belt on for it to run? i just dont get this and its starting to piss me off!! thanks once more

You could half ass it. Or you could play it safe and pull the head and see if there's any damage. You can spend money now, or spend more money later.

k. so at the moment. i have a plan, but im not sure if htis is gonna work. im gona adjust the timming so its correct and try and fire it up to see if the valves are bent. any objection's to that? and also.. do i need to have a balance shaft belt on or the balance shafts removed for it to fire up just to see if it runs right? I am really ansy to see if the valves are good but the b/s removal kits gonna take 3-5 weeks to get shipped, so it would be mighty good if it would run right without the b/s belt or then romoved!!

No the balance shaft will not stop it from firing or running for that matter. Why not do a comprssion test to see if valves are bent? Rather than say ok im gonna reset timing and turn it over to see what happens? If you insist in reseting timing im hoping you are turning it over by hand with a ratchet on the pully rather than the ignition.

ill try a compression test tommmorow hopefully if im not busy. i know this sounds really odd. but last time i checked the compression like 4 months ago it came up at 150, 150, 135, 80 and the car still pulled hard and beat several other talons, it didnt overheat and the oil stayed oil not milky mixtures of oil and anti freeze like a cracked head gasket would produce. it didnt blow oil out the exhaust either. so i unno but ill do the compression test hopefully tommorow and post the new results hopeing there the same as before.

k, so i ran a compression test today. it came up in all cyl's as 0. then i was freakin out wonderin how its completly 0 in all cyl's and my buddy said.. its cuse the timmings off, the valves are open at the wrong time. its making no pressure. im assuming he's right?

if you timing is actually off then yes and unless its off exactly 180* you've bent valves

thats the worst news ive heard all week.

Well it can be a few degrees off but if its like 15* off then you have a problem. If I was you I would retime the motor and do another compression test to see where I'm at