timing belt broke!!

[ctr kid]

got an si civic 1.6 twin cam D16a8.

driving down the road the timing belt broke.
didnt hear anything, no crunch or bang...

does anyone no if the pistons fowl the valves???

or is there clearance???

can i just throw a a belt on and everything will be ok?

[EG30]

your engine is an interference engine type, ie valves meets piston when cam belt is broken, so I don't fancy your chance of getting away scott free here.

[LUD35]

not necessarily. my timing belt broke a while back on my old civic, luckily i was at the lights and i turned the motor off straight away

depends how long you left the motor running after the belt gave away as to how much damage your motor has received

[kayot1k]

just wondering how long over due are you for that big service i.e timing belt, water pump etc...

or was it just premature .

[ctr kid]

old owner said it was changed... and mechanic never checked it... just bad circumstances and bad luck...

[clayton4115]

how many kms on the car? what yr is the car?

[jezsx]

yeah sorry to say but i also agree with EG30 caus alot of motors these days are made as a interferece type.

About two years ago i snapped a timing belt driving at 30km/h on my d16a3 motor in my 86 integra and my motor shut off straight away.I was lucky and didnt bend any valves i thought i would of caus was told it was a interference motor.But then i guess it between the d16a3 and d16a8 they must of introduced more valve lift with the camshaft profile so that they do run closer to the piston and well interfere if timing blt snaps.
So thats some knowlegde of mine for you. But if you have time but not alot of money and your knowledgable to intall he belt yourself you could try a belt and tensioner($150 approx) and see how you go and if not sucessful you will have pull it apart again hold on to the t belt and send the head away to get serviced.Not to sure on your chances though.

A head service can cost around $250-300 and maybe around $400 depending on how many valves where bent
And you will also need a Gasket kit with all your seals and Headgasket for doing the job which is off the top of my head about $150

So you would be looking at around $600 if you take the head off yourself and send it away to get fixed.

You could consider yourself really really lucky if you didnt bend valves.

[dupac->]

last owner of my car had no idea if the timing belt was changed or not.. so i got it changed anyway.
shouldnt rely on the word of the last owner.

just for peice of mind get it done! costs you $150-$200 now..
but will save you 1k later.

[clayton4115]

do you have to change it at 100,000 or after x years

reason i ask is that it will take me another 8 years or so to reach 100k, drive about 10k a year and got 25k on my 2005 7th Gen now.

[kayot1k]

its whatever comes first as per instructions in your honda manual

[Elwood]

the timing belt broke on my old EG Breeze d13b while driving, luckily there was no internal damage.. take it to a mechanic and they can check it out for ya :)

[EG30]

D13 and D15 series single cam engine non interference design thus valves won't hit piston.

regardless of mileage manufacturers usually recommend belt to be changed every 4 years so even if the car has been sitting in a garage for 4 years with 0kms travelled it should be changed. Don't forget the rubber belt ages as well ie it deterioates with age and thus the belt gets weaker.

[ECU-MAN]

depends how long you left the motor running after the belt gave away as to how much damage your motor has received


when the belt snaps everything is beyond your control. turing off the engine wont do a thing

if your engine is free running then no damage

if your engine is not free runing its going to cost you, rpm's at the time of the snap can factor the amount of damage.

some civic engines are free running, you might get lucky.

[beeza]

Is a 96 EK1 d16y4 SOHC 'Free running'? :)

[ECU-MAN]

I recon it is, but dont hold me to it.

[beeza]

Good to hear :),Cheers.

[Zdster]

when the belt snaps everything is beyond your control. turing off the engine wont do a thing

if your engine is free running then no damage

if your engine is not free runing its going to cost you, rpm's at the time of the snap can factor the amount of damage.

some civic engines are free running, you might get lucky.

Can you explain what you mean by "free running"?

[BlitZ]

Can you explain what you mean by "free running"?

piston to deck/cam clearences?

completly clear = free running ?

[tekung89]

changing a belt every 4 years isnt too bad is it =) i recommened a quality belt like GATES. costing under 100 and do the timing belt change urself to save 50-100 worth of labour.

i wouldnt trust word of mouth from previous owner. get it check because ' a sale is a sale ' anything could be said to make the trade a done deal.

[steve88]

my cars on 180,000 i should get the belt changed soon D: i boughti t at 160,000 have no idea whats been done to it

[EG30]

people tend to put off changing the timing belt, esp when they are about to sell the car in the near future. Apart from the expense of the belt and labour, while everything is apart you might as well change the water pump esp if the car has done high kms and the water pump still the original item from new, oil seals ie cams seals and crank seal, and also the belt tensioner which should be changed with the belt ( gates sell the tensioner+belt as a kit as well as individually ). So I could well cost close to $800-1K for all of the above with labour at a workshop, little wonder people don't bother and take the risk if the car is worth only $2-4K as they sure ain't going to recoup that come selling time.

you can look up if your car's engine design is of the interference design or the free running type on the gates.com website.

Still amazes me people think they can get away with " switching off engine right away" on an interference engine, even sitting at the lights at idle when the belt snaps, in one second the engine would still be making over 10 complete revolutions. Not that the engine would run much longer than that anyway with a snapped belt even without the driver trying to turn off the engine.

[steve88]

how can you tell the belts snapped? you can hear it?

[EG30]

no you can't hear it, the engine just cuts out without any warning as if ignition is killed.

Most of the time it's not snapped, but belt disintegrated and teeth of the belt started to strip off and the belt slips on the cam pulley and destroy itself. The sure fire way to verify this is to open up the timing belt cover/front cover to take a peek. Before that you would notice the car won't run despite there is fuel and spark ( need compression on all cyls to run engine ).

[steve88]

now im shitting myself. this kinda thing aint easy to do on your own is it

[beeza]

No.Which makes me wonder why I drive around with a spare timing belt in my boot.I can't put it in.Haha :)
I guess I'm hoping someone nearby will know.

[EuroDude]

^ lol it can take hours replacing a timing belt depending on the engine design.

When you buy a second hand car and the timing belt looks a bit old/cracked/dodgy, you should replace it for peace of mind.

[TheGoodDeal]

Is a 96 EK1 d16y4 SOHC 'Free running'? :)

I believe your is the same with my 97 D16Y4. It's Interference Engine.

FYI, download this brochure http://www.gates.com/downloads/download_common.cfm?file=428-1466_web.pdf&folder=brochure

It's will tell you where ther your engine is Interference Engine or not and recomended replacement interval. It's in Miles (US version).

[EuroDude]

From what ive gathered, *most* of honda engines are interference engines, except for a few SOHC's and V6's

http://www.answerbag.com/q_view/237022
http://answers.yahoo.com/question/index?qid=20071123164927AAxngBX
http://www.honda-tech.com/zerothread/2167540
http://www.answerbag.com/q_view/147887

[98vtir]

At the mechanics across the road from my work a fellow broke his timing belt on a prelude, had t oput a new engine in. So i think he chucked in a Type S prelude engine, vroom vroom

[ECU-MAN]

Can you explain what you mean by "free running"?

free running means the crank can rotate with out the pistons hitting the valves no matter what the position of the camshaft.

[clayton4115]

i have a 7th Gen civic sedan, 2005 model will i also need to change mine, or is it free running?

cannot find it in the list above.

[TheGoodDeal]

i have a 7th Gen civic sedan, 2005 model will i also need to change mine, or is it free running?

cannot find it in the list above.

Your car not on the list because it only 2 yrs old.

How many Kms have you car done?

The timing bell recommended change at 100000Kms or 5yrs which ever come first

[ECU-MAN]

i have a 7th Gen civic sedan, 2005 model will i also need to change mine, or is it free running?

cannot find it in the list above.

I think your engine may have a timing chain insted of a belt.

[destrukshn]

^ lol it can take hours replacing a timing belt depending on the engine design.

When you buy a second hand car and the timing belt looks a bit old/cracked/dodgy, you should replace it for peace of mind.
approx 2 hours, if everything goes smoothly.
lol.

[clayton4115]

Your car not on the list because it only 2 yrs old.

How many Kms have you car done?

The timing bell recommended change at 100000Kms or 5yrs which ever come first


ive done 25000 kms !

:wave:

[TheGoodDeal]

ive done 25000 kms !

:wave:

Do you have Owner's Service Manual (Log book)? In there, the Maintennance shedule it also will tell you when to replace the timing bell.

[hayashi_1986]

I don't know if this is tried and true, but there are several products that you can buy and spray ON to the timing belt before fitting to prevent premature wear of the rubber materials that it uses. I might try it in the near future and see how it goes on my H22A.

[EuroDude]

I think your engine may have a timing chain insted of a belt.

K Series = chain.
R Series = chain
D Series = belt
B Series = belt

[clayton4115]

yeah just read the manual it says 100,000 or 60 mths, which ever comes first.