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eyob07
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Jul 26, 2018, 10:52 AM
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hello, everyone, this is 2001 civic the engine cranks but won't start. the first thing I did was check if there are any codes. and sure there was one, it says cylinder number one misfire. I believe this can prevent the engine from starting. to confirm this I check the cylinder with a compression tester and no compression at all. what is the preferred way to rectify this issue? to replace the cylinder head or the entire engine. I need your advice, thank you all.
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Discretesignals
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Jul 26, 2018, 11:15 AM
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Re: crank no start
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Is there compression in the other 3 cylinders? Maybe the timing belt is broken
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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eyob07
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Jul 26, 2018, 1:03 PM
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Re: crank no start
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thank you for your response, the thing is I remove the valve cover and the upper timing belt cover as well, and rotate the engine manually to check for any broken timing belt tooth. the belt is intact and no signs of damage.
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Hammer Time
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Jul 26, 2018, 2:00 PM
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Re: crank no start
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Do the compression test anyway. It will help diagnose the issue.
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eyob07
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Jul 26, 2018, 2:05 PM
Post #5 of 16
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Re: crank no start
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I did cylinder one has zero compression, number two about 60 psi.where is this taking me
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Hammer Time
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Jul 26, 2018, 2:09 PM
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Re: crank no start
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It's taking you to a new engine. Sounds like it jumped timing.
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Discretesignals
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Jul 26, 2018, 2:17 PM
Post #7 of 16
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Re: crank no start
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Unless it has no spark and they were cranking on it enough to wash out the cylinders.
Disable the fuel injectors and squirt some oil down into the cylinders. Crank it over a few times with the plugs out to distribute the oil. See if you can get your compression to come up.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 26, 2018, 2:19 PM)
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eyob07
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Jul 27, 2018, 7:17 AM
Post #8 of 16
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Re: crank no start
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hi there i decided to swap the engine. do i have to swap the computer too. or reprogram the key. by the way replacing the head may not be a remedy, because this zero compression problem can be like hole in the piston or damaged rings. would you agree with this, let me know if i,m clue less here.
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Hammer Time
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Jul 27, 2018, 9:04 AM
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Re: crank no start
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Not necessarily. If it is out of time the damage is usually limited to the head but at this point you haven't even confirmed what the failure is. If you have a valve bent even slightly, that would equate to zero compression and that can easily happen without damaging the piston. You can use a borescope in the spark plug hole to determine if there is piston damage. I do agree that in a timing scenario, another engine is the best way to go.
Assuming you will be replacing it with the exact same engine, which is the only way to go, no, you won't have to program or replace anything.
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Tom Greenleaf
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Jul 27, 2018, 9:29 AM
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Re: crank no start
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All here with this: DS suggest some oil which would come up if intact not a real piston HOLE. Bent valves as HT said do render you zero compression or easily can.
I'd like to see if there a hole or chunk that damaged more to totally render engine not worth it now at this age miles on this I didn't see? What you get used you would probably want to do the job that wasn't done or not be in this jam Eyob07 so out the job either way really.
A lot depends on how well you trust sources for used engines can be very well documented what you are getting or lack info end up with just a warranty for another is that one suks! Not good. Just trying to avoid playing whole engine ping pong and blowing a lot more bucks than it might cost to fix this one unknown right now,
T
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eyob07
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Jul 28, 2018, 9:38 AM
Post #11 of 16
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Re: crank no start
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Hello there I think I discovered the cause of this problem, i took the spark plug out of cylinder number one, and insert a long screwdriver, and then rotate the engine two or three rounds, and I don't see the screwdriver going up and down, I believe this indicates either the piston is sized, or the connecting rod is broken. what do you think?
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Hammer Time
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Jul 28, 2018, 9:46 AM
Post #12 of 16
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Re: crank no start
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Something really strange about that. No, it's not seized or you wouldn't be able to crank it and if the connecting rod broke, you could probably find it sticking out the side of the engine. It would at least be making some loud noises when you crank the engine.
You probably want to try that test over again, maybe with a longer screwdriver.
I suppose it could have a broken crank. See if the belts move when the starter engages.
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eyob07
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Jul 28, 2018, 1:01 PM
Post #13 of 16
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Re: crank no start
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you mean the crankshaft is broken partially, and that is the reason why cylinder #1 is not moving.
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Hammer Time
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Jul 28, 2018, 1:07 PM
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No, it would have to be broken entirely and it's not real likely but is possible. Just watch to see if the front pulleys turn with the starter.
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eyob07
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Aug 1, 2018, 10:37 AM
Post #15 of 16
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Re: crank no start
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hello, there we finally decided to replace the engine, my question is which way is the easy way to take the engine out, some people take the engine and transmission together first, and then put the replacement engine, and put it back to the engine bay. or leave the transmission and take the engine alone, which way is easy. I mean this is the first time we are doing this so we need your expertise.
God bless
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Hammer Time
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Aug 1, 2018, 10:54 AM
Post #16 of 16
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Re: crank no start
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Have you even determined what the problem with the engine is yet?
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