my timing belt broke a couple of days ago and I was wondering if anyone’s had to replace der timing belt before. How hard is it and how long did it take. I have the haynes manual, but I was just curious as to whether this repair is going to take a long time or not.
If it’s your first timing belt, it may take you some time. Hard parts are getting the crank pulley bolt off and aligning the new timing belt. I wouldn’t do this without the aid of the Helms (Factory Sevice) manual. Best of luck.
Bigger concern would be damage to the engine – distributor, cams, pistons… Once in a while, no damage is done when the belt breaks, but often it causes a lot of internal damage…
k2jeff
I a a mechanic and 98.9% of the time once you break a timing belt it usally time for a new motor, You rack the valves which requires a new head, Damage or bend, rods bearings and what not, So when you think about it you mide as well just buy a motor insead of just parts which might not do it…c later
98%…now that’s not true. It really depends on what rpm you were at when your timing belt broke and if your motor is stock or not. If you were at 7000rpm, you most likely did some engine damage. However, if it broke under 4000rpm, there’s a good chance your motor survived unscathed. I’ve replaced a few broken timing belts for people and I have yet to find one that had a bent valve. This isn’t to say that it isn’t possible and you shouldn’t bother replacing the timing belt at the correct intervals. But if you break your belt it doesn’t necessarily mean that your motor is toast. Buy a new belt, install it, and do a compression/leak down test. If it comes out bad, you most likely have a bent valve. Hope this helps.
my timing-belt broke while i was at around 2000rpm in fourth, my motor was fine, i just needed a new distributor -along with the requisite timing belt and water pump.
my timing belt jumped at 4000 rpm twice and my pistons where up and my valves were down to and i didnt hit a valve.
Man that’s a shame that you have to hear a mechanic say something like 98% of the time you will need a new motor. Isn’t that just something you wanna deck him for? I mean I don’t ever take my car to the shop anymore for that reason. The explanations never make sense. In fact if you were ever at a shop in York, PA called Tilden you would know that they just look at the same Helms manual we do when replacing parts, and that’s not to say the Acura dealer doesn’t but they can’t do anything at all without it. Takes them 6 hours to do a job even I could do in 2 hours. Rediculus. Okay I will stop ranting. I am just tired of getting ripped off…
sory
Sory, if you miss understood me i was just really exaggerating calm down, I only ment that 90% of the motors i come into my shop with broken timming belt need to replace the head or the whole motor, not just honda motors.
On top of that i know what i doing i dont just read a manuel…:mad:
Re: sory
Originally posted by K2jeff
Sory, if you miss understood me i was just really exaggerating calm down, I only ment that 90% of the motors i come into my shop with broken timming belt need to replace the head or the whole motor, not just honda motors.On top of that i know what i doing i dont just read a manuel…:mad:
:sick:
thanx for all the help everyone. As for the RPM’s, I was under four. I was doing 45 on a side street, and was actually expecting something to break soon. I’ve already bought a new distributor rotor, and I have a manual, i think it’s haynes or something, i know it’s not the chiltons one. I’m probably going to fix the belt on friday or saturday. I’m PRAYING that i didn’t f@ck up my engine. I don’t have the money for a new engine, but I doubt i hurt my engine THAT much. Thanx for all the help again.
never mind
I was right look in most timming belt manual’s and they will have an (*) next to every motor that will most likely not make it through the timming belt breaking ALL honda engines have the * next to it< im not saying it will always take out the motor but my 89.9% estimate was pretty D amn close:) _clater (dont talk back to a mechanic that knows what hes doing :mad:
i just did, well i didnt do it, my friend did my timing belt for me today and i helped him a little. but, i’d say the hardest thing would be taking off the crank pulley bolt. if you dont have air tools, u better get reaaaal innovative. a couple people have been able to get it off with a lot of wd40, and a really long breaker bar and have another car push on it slowly. but even with air tools, we had to use some giantic air impact gun until the bolt came loose. after that, its just removing the belts and water pump. leave the gears at tdc and mark the belt and the teeth on the gears and the crank and use that to align the new belt. i dunno, i wouldnt suggest doing it unless u have a fair amount of experience with cars. but if u do, good luck man.
Re: never mind
Originally posted by K2jeff
_clater (dont talk back to a mechanic that knows what hes doing :mad:
obviously you don’t know what you’re doing because the LS motor is “a non-interference” motor. meaning, that in no way shape or form will the valves be able to touch the piston. EVER! unless the cam or pistons are changed to aftermarket. stock there is absolutely no way. unless maybe the valvesprings were shot to hell, and were sagging to the point that the spring was fully compressed at all times, but then the motor wouldn’t run anyways, so you still couldn’t break a timing belt, or bend some valves.
Again: The LS is a non-interference motor. The laws of physics won’t allow the valves to touch the pistons!
Later.
Secret
yo
Sorry incorect once again its is in fact an interferance motor if you want to check to see if its an interferance motor, When you have your timming belt off put one cylinder down so valve is pushed all the way open and with spark plugs out turn engine 360 degrees by hand at see if engine will stop at any part of the rotation.
and, no it doesn’t. as long as the valve is only as far down as the cam will allow it to go. if you fully compress the valve spring then, yes, the valve will tap the piston, otherwise, the motor will spin freely all day long. i’ve done it several times before.
later.
secret
yo
Sorry guy but you dont know what your talking about i rebuilt and serviced honda’s and honda engine for 14 years and have been a mechanic for almost thirty i know honda motors and a hell uva lot of other **** like the back of my hand, So please dont argue you make yourself look like even more of an a s s… c-Later