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  #1  
Old 11-15-2004, 07:15 PM
moonshower moonshower is offline
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crx broken timming belt

Its on my 91 crx dx
It started acting slugish at low rpms next day belt went away at low rpms. relaced all belts and water pump. Hit key and it started right up idled at 1500. when for test drive and still sluggish below 2500. Revs freely with no load with a slight burp when stepping on the pedal at tailpipe before climbing to redline no load. Timming off? Bent valve? or worse?

good site for instruction verses my mitchel cd?
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Old 11-15-2004, 07:19 PM
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TheSilentChamber TheSilentChamber is offline
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Re: crx broken timming belt

http://www.binghamtonlife.com/manual/2gsm/default.htm Helms service manual

Sounds like your timing is off a little.
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Old 11-16-2004, 10:08 AM
moonshower moonshower is offline
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timming

The paint marks are gone on the crank pulley. No sign what so ever. ? Is it advanced are retarded? Care to gander a quess?
Moony
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Old 11-16-2004, 01:41 PM
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Re: crx broken timming belt

Bent valves def...... This happened on my civic, Integra #1, Integra #2! Yeah it must be a bent valve, as opposed to cracked. When the engine revs higher it builds up more compression and reduces the sluggishness.

This happened to th 95 teg gsr. It will have no power at low rpms, but at high. Does it smoke any??

Cant be the timing otherwise it would run REAL rough!
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Old 11-16-2004, 03:33 PM
moonshower moonshower is offline
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bent valve?

I have advaced and retarted the timming to both limits of distributer travel. Advance seemed to help a little although it still stumbles to 2500 were it takes off. Cramming the pedal will produce a backfire sometimes then it sluggeshly climes to2500 and revs freely after.
I will be pulling a compresion check on it tonight.
What should a 150000 mile crx ruffly produce PSI.? wise whats a good number? moony
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Old 11-16-2004, 03:56 PM
honda_luvr_2000 honda_luvr_2000 is offline
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Re: crx broken timming belt

do a compression test on it. that will find a stuck/bent valve if u have one as long as u didn't punch a hole thru a piston. if u have compression across all cylinders, but low compression, then it means u'r cam is out of time w/ the crank. if u have no compression on a particular cylinder, then there's u'r bad valve. u can get a compression tester at a local autozone, advanced auto, etc. it should have instructions on how to use it, but if not, i could walk u thru it.
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Old 11-16-2004, 04:10 PM
moonshower moonshower is offline
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thanks???

I can do the check , the funny thing is the car , my boys that is started the acting the same as it does now the night before the belt went away.Since there was no sign of the paint marks on the crank pully i pulled no1 spark plug and used a dowel to determine tdc set cam pulley to the up position as described in honda belt change procedure and installed belt. It could be off 1 tooth? would it run as good as it does and could it be corrected by distributer adjustment if itbwas off a tooth?
I think not. It seems like the crank pully keyway was at tdc or at 0 when no1 was at TDC is that a tell? How can I restablish my crank pully timming marks to possibly check the timming as I have a timming light.
Moony
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Old 11-16-2004, 05:17 PM
moonshower moonshower is offline
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bent valve

All cylinders show 90+ PSI. No bent valves. See my previous post for questions
moony
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Old 11-16-2004, 05:18 PM
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Answers

PLEASE SEND SOME SOMEBODY. moony
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Old 11-16-2004, 06:06 PM
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Re: crx broken timming belt

when was the last time you replace plugs, wires, cap and rotor? Could just be a simple spark problem.
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Old 11-16-2004, 07:57 PM
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spark?

Well pulled the platinum plugs to test compression they look fine wires could be? and rotor looks ok. Car idles like a top as desribed before it stumbles from bottom when stomped. It is preforming the same as just before the belt stripped at crank pulley. Can you be a tooth off and still idle fine . and with a tooth off can you correct timming with the distributor takeup?
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Old 11-16-2004, 09:56 PM
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Re: crx broken timming belt

timing w/ the distributor is for the spark only. the belt controls the cam-to-crank timing. turning the dizzy won't do anything for the cam-to-crank timing. u'r cam-to-crank timing is the problem. it's off because u should have at minimum 135 psi, and nominally have 185 psi. u have less than half the compression that u'r supposed to have. u have valves not opening when they r supposed to and not closing when they should.
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Old 11-16-2004, 10:07 PM
honda_luvr_2000 honda_luvr_2000 is offline
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Re: crx broken timming belt

as for the paint mark for TDC on the crank pulley having worn off, i can't remember if there is another mark on the pulley. i can't see mine too well right now, so i couldn't tell u for sure but i'm pretty sure it wasn't just a paint mark as that WOULD wear off easily. however, u don't necessarily line up that paint mark straight up, there is a pointer on the timing belt cover that u r supposed to line it up w/. that's prolly how u'r cam-to-crank timing is off.
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