The timing belt on my 91 integra LS snaped when my girl was driving it,so i changed that,and the head gasket as well,and now the car will not start.all wiring is plugged in,im getting spark and the plugs are not fouled,im still pulling a steady 36 pounds of fuel according to my fuel pressure regulator,the engine turns over,but somewhat irregular sounding. I also checked the valves to see if one belt when the belt snapped,and all valves were flush,and there were no marks on the pistons to show if a valve had hit,any tips?and also any feedback on the weapon-R camgears?as far as how they perform and if they have to be zeroed out when i time it,they are currently 2 degrees retarded.thanks all for any help you may offer

 

If the engine was running when the belt snapped, I can positively tell you the valves are bent. IMO you need to tear the head apart to see what damage has been done.

You said you changed the head gasket...when you inspected the valves, did you actually take them out of the head to inspect them?

 

Did you do a valve lash adjustment? If you didnt, there is a good chance you have valves that are open at TDC. If so, did you do a compression test?? There is a good chance you have bent valves if the timing belt snapped while the car was running.

 

belt snapped when she was starting it to go to work,no i did not perform any real tests,just took the head off and looked at the valves,they were all siting flush,and there were no marks on the pistons to show whether or not a valve had hit,the carbon on the pistons was not effected at all.

 

Well the first thing I would do is a compression test. If you dont have compression on a specific cylinder, I would first adjust all the valves on that cylinder and then redo the compression test. If it still has no compression on that cylinder, then you can about guarantee that there is a bent valve. If your compression checks out fine on all cylinders, then we will have to go from there but these are the first things you need to check first after a broken timing belt

 

X2 for a compression test...

 

X3 on the comp test.

Even if the test results turn out crappy the motor should be able to be started. 1) Make sure that the spark plug wires are hooked up correctly. 2) If you can, make sure that you are not off by a couple teeth on the t-belt.

Chances are that at least a couple of the valves are bent. I tore down a head that the timing belt had snapped on and I couldn't tell by looking at the valves or pistons that the valves were bent. You'll pretty much need to look down them the long way or spin them to notice the bends. Or if they are bad enough you'll feel some binding when removing them from the valve guides.

good luck.

 

was the car running at speed or sitting at idle? my belt snapped on my gsr once at idle and I didn't bend a single valve ... different story if you were moving. Make sure all your sensors are plugged in (and correct) and did you have the head milled before putting it back on?

 

no i did not have the head milled,and the car was idling,she started it to go to work,went inside for something and came back out to the car being off and timing belt broken

 

it was my first head gasket swap ever if that answers any futer up-comming questions on what i did to put the head back on,and my bro wasnt here to help,lol,so i went off internet forums and stuff for what needed to be done.

 

are you sure your timing is at TDC?

 

i am not positive,i did the best to get the first cyllinder at tdc and line up all timing marks,but i need to have someone who's done it before look at it,cuz this was my first time.

 

maybe when you installed the cams you didnt line them up correctly each cam has a mark and both need to be lined up check them maybe thats the problem

 

that could be your issue

 

do the cam gear marks need to be aimed at 12:00 or should they be aimed at each other in an east-->west direction?also as i said before,the car turns over,but it has a somewhat irregular sound as it's turning over,almost a stutter,would that be from bad compression or from a bad timing job?by the way thank you all for your tips and info on this.

 

Aim both arrows up at 12 with the crankpulley marking at TDC as well. another thing that you should do along with a compression test is to try moving the distributor around in different spots. Try from the middle first and then slide it around testing out different spots

 

the arrows say "up" on them. the best way to know you are exactly TDC on your cams is to line the holes up on the camshafts themselves. Then you know you wont be off by a tooth. These holes are located right by the cam gears.


Oh and if you do a compression test and it comes back bad, it doesn't necessarily mean you have a bent valve because you didnt adjust your valve lash which could keep your valves open and cause no compression in your cylinders.

 

Ok,well i got my baby running tonight!lol. only issue is that when it's running theres a bad stutter,almost as if it's about to stall,or run out of gas. would that seem like the timing is still off by a tooth or 2 or does it sound more like bent valves?

 

and i have almost a full tank of gas,fuel pressure guage still shows 36 pounds,and fuel pump still kicks on.

 

so you have fuel , and spark. check comp. and are you sure its on timing right?

 

just check it anyways... its pretty simple... and no it doesn't sound like bent valves because it would run like complete dog **** if it was.

 

sounds like you have the same problem i had when i changed the headgasket on my 92. I just adjusted the valves and my car ran good. Try adjusting your valves to the correct specs.

 

OK,so i got the car timed right now,but i have a good amount of slack in the timing belt still. my bro was reading up somewhere a while back and said he read something about putting the belt on,and cranking the motor a quarter revolution or so to take up the slack,but he couldnt remember if im suppose to do that before or after i tighten the tensioner pully,anyone know how or in what order im suppose to do that?

 

got her running and the slack out of the timing belt,she sounds good and everything,but randomly sometimes will stall if im not giving throttle,which she never did before.looked for any air lines that were broken and/or disconnected,did not find any,checked spark long before i got to this point and all 4 plugs and wires were giving spark.i hear the fuel pump kick on and i see my fuel pressure gauge still reading right,and have almost a full tank of gas.is it a vacuum leak that im missing somewhere maybe? or my O2 sensor maybe?she's so close to being on the road i can almost taste it,lol.

 

do you have a c/e light. If I were you, I would let it run long enough to maybe register a c/e light and then go from there.