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Old 09-20-2012, 10:13 AM   #1
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Default car will crank but wont start after replacing timing belt

Its an 89 Honda Civic Dx.
Was driving home and the timing belt broke, I was in 2nd or 3rd gear when it happened.
It was a friend who replaced the timing belt and water pump, we've also replaced the spark plugs, fuel pump and filter. The car still won't start, and i'm going to talk to a mechanic today. any ideas? could the valves be bent?
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Old 09-20-2012, 11:23 AM   #2
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Default Re: car will crank but wont start after replacing timing belt

Timing probably off during reinstall.. check timing again (TDC) is it align correctly.
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Old 09-20-2012, 01:00 PM   #3
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Default Re: car will crank but wont start after replacing timing belt

What droopy said. Pretty sure timing is off. did you change fuel pump plugs and filter after you found out it wasn't starting? or all at the same time?
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Old 09-20-2012, 01:11 PM   #4
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Default Re: car will crank but wont start after replacing timing belt

recheck timing


when you installed and timed the belt. after it was all tight did you rotate the crank 2 times through all the strokes? and then realign iit at tdc and check the marks?

i dont believe this engine is a contact engine but i could be wrong. it could also be bent valves.. but you can tell by sound.

does it turn over slow or super fast?


do a compression test. but first re check timing.
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Old 09-20-2012, 02:06 PM   #5
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Default Re: car will crank but wont start after replacing timing belt

your timming is off
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Old 09-20-2012, 02:08 PM   #6
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Default Re: car will crank but wont start after replacing timing belt

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Originally Posted by 10psiLsEf2 View Post
it could also be bent valves...do a compression test. but first re check timing.
This^
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Old 09-20-2012, 03:59 PM   #7
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Default Re: car will crank but wont start after replacing timing belt

Put crank at TDC. There are marks on cam sprockets that need to be in correct position. Get a manual or look on-line. You may have to do more than one revolution of crank as cam rotates one-half as fast as crank. It will be obvious.

You may be 180 degrees off on camshaft (or 360 off crank -same diff). When a plug sparks, the valves should both be closed for that cylinder. If you're off on cam timing, the valves will be in wrong position when cylinder is sparked and motor cannot possibly run.

And YES - IT IS AN "INTERFERENCE" MOTOR. There will be damaged valves unless you are very lucky.

By all means, at least get a Chilton's manual down at Autozone.
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Old 09-20-2012, 04:02 PM   #8
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Default Re: car will crank but wont start after replacing timing belt

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Originally Posted by trojwl View Post
Put crank at TDC. There are marks on cam sprockets that need to be in correct position. Get a manual or look on-line. You may have to do more than one revolution of crank as cam rotates one-half as fast as crank. It will be obvious.

You may be 180 degrees off on camshaft (or 360 off crank -same diff). When a plug sparks, the valves should both be closed for that cylinder. If you're off on cam timing, the valves will be in wrong position when cylinder is sparked and motor cannot possibly run.

And YES - IT IS AN "INTERFERENCE" MOTOR. There will be damaged valves unless you are very lucky.

By all means, at least get a Chilton's manual down at Autozone.
Sorry for the wrong info bud!
before jumping to conclusions just set timing once more... if tht dont do it. do a comp test

let us know the results
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Old 09-26-2012, 04:09 AM   #9
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Default Re: car will crank but wont start after replacing timing belt

turns out it was a bent valve, the timing was fine. I decided to go ahead and get it fixed
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Old 09-26-2012, 06:23 AM   #10
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Default Re: car will crank but wont start after replacing timing belt

Triple check the marks on the cam and crank at TDC when reassembling..

That's pretty much the only way you can bend a valve.

Good luck.
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Old 09-30-2012, 05:27 AM   #11
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Default Re: car will crank but wont start after replacing timing belt

Well i got it back from the shop yesterday and everything seemed to be going good. but then after about 30 minutes of driving the check engine light turns on. when i pulled over i noticed there was white steam coming up from the engine, the car wasn't over heating before i pulled over.

I didn't see any coolant leaking
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Old 09-30-2012, 05:57 AM   #12
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Default Re: car will crank but wont start after replacing timing belt

Can you pinpoint where on the engine the steam is coming from? The coolant will flash as soon as it hits atmosphere. And if it's on an upper point on the engine, the coolant has merely leaked down below the leakpoint and thus you won't see any liquid leaking.

I would top off coolant, start car, watch closely and see where problem first developes.

Also check oil level and check for water in oil (will look milky). If coolant is somehow leaking at head gasket and into coolant chamber, then you will have a real probelm to address (probably head gasket). I've seen this happen before.

Good luck and keep posting progress.

Warren
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Old 09-30-2012, 06:19 AM   #13
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Default Re: car will crank but wont start after replacing timing belt

I really hope it's not the head gasket, but the repair shop did replace the head.
it doesn't look like it's holding oil at all, but i don't see a leak
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Old 09-30-2012, 07:34 AM   #14
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Default Re: car will crank but wont start after replacing timing belt

i would say the steam is actually burning oil,grease.etc From the shop. check what dtc came on
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Old 09-30-2012, 09:29 AM   #15
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Default Re: car will crank but wont start after replacing timing belt

The smell of the steam will be a tell-all (coolant vs. oil - very distinctive odors).
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Old 10-01-2012, 05:35 AM   #16
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Default Re: car will crank but wont start after replacing timing belt

If you had a shop replace the head then take it back to them to have the job redone if you have a problem,but make sure that you don't just have oil and grease burning off from them doing the job.
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