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Old 04/14/2012, 05:14 PM   #1
junkyard
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Default d16z6 cranking but wont turn over

New dizzy new plugs and new wires.

Im doing a compression test tomorrow.

any ideas?


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Old 04/14/2012, 11:11 PM   #2
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Default Re: d16z6 cranking but wont turn over

What else is it doing? Did you check if your getting gas? can u hear ur fuel pump kick on or the main relay click? Are you sure its getting spark?

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Old 04/15/2012, 07:03 PM   #3
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Default Re: d16z6 cranking but wont turn over

Yeah. we did a compression test on each cylinder today. I think each one is supposed to hit 150 but 3 only hit 75 and 1 hit 50. 4 and 2 both hit 150.

I intake feels like it isnt sucking enough air. Ive had to use a compressor and blow air into my intake to start my car before.

I crank it over and it cranks and cranks and then a small backfire but nothing.

I got a guy up here that is helping me out so ill keep ya updated.


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Old 04/16/2012, 12:14 AM   #4
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Default Re: d16z6 cranking but wont turn over

Sounds like the rings are toast. Just cuz two cyclinders are sittin ok for compression doesnt mean it'll start. Double-triple check the timing and make sure its set rite. A tooth or two off makes a huge difference but it should still start. Make sure ur gettin spark on all cylinders. Grab a spark plug checker from ur local parts store and they should be firing a strong bluish spark. If not, try wires and a dizzy cap. Also, be sure that ur firing order is correct. 1-3-4-2. Another longshot is valve lash. It wouldnt make a huge difference but it may be just enough to cause problems on top of whatever is goin wrong. Just keep trying thr most probable causes and get back to us with results. Good luck.


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Old 04/16/2012, 12:28 AM   #5
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Default Re: d16z6 cranking but wont turn over

Sounds like timing may be off a few teeth. Id open up the cover and check it. Plus are the sparkplugs gapped to spec? A simple step on the wires could ruin the sp wires.

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Old 04/16/2012, 11:56 AM   #6
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Default Re: d16z6 cranking but wont turn over

I was reading a few topics on Honda tech and ef-Honda about the same problem I've been having. I have a good grasp of what I need to do. I have no tools and live in an apartment. So I'm waiting for the car to be towed to a friends house. He has almost everything I need there. This will be our summer project.

The spark pluggs are Bosch. The box says you never have to gap them. They don't look like normal spark plugs with the one hook. It has 4 smaller tips they come closer to a point.

Slowly but surely figuring it out. Thanks for the help guys.
I'll keep you up dated. Should have a build thread going soon.


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Old 04/16/2012, 11:19 PM   #7
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Default Re: d16z6 cranking but wont turn over

Toss the bosch plugs. Hondas are picky about them. Ngk's have always worked the best for me.


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Old 04/17/2012, 01:48 AM   #8
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Default Re: d16z6 cranking but wont turn over

Sounds like 2 of your cylinders are no longer friends with you anymore. This doesn't at all sound like a timing belt being off by 2 teeth or spark plugs not gapped properly? <-- Were you being serious about the spark plug comment or was that just to be funny?

Reason why it's not a belt being off is because if it was that, all of your cylinders would have low compression, not just 2 of them. So what you should be looking at is what's causing the low compression in the two cylinders and not worry about anything else for the time being. First thing is first, think about the things that would cause this to happen. You said Cylinders 1 and 3 are low on compression.

So we know this much, low comp in 2 cylinders and the car doesn't want to start. Some background info is always helpful when looking at stuff. How long ago did the car stop running? Was it acting up before it broke down? Is this something you bought that already didn't run? Give us some info to help narrow down what's going on.

There are 2 main things that I'm leaning towards whats wrong based off of what's common. Blown headgasket, or your rings are toast in those two cylinders. I would start by checking your oil. Drain it out, you might as well do an oil change while you're at it. When you drain it if the oil looks like chocolate milk then it's a headgasket that blew. If it's your normal black oil then its most likely not a headgasket. Now if the car was burning oil really bad then this is usually a dead give away for bad rings.

Start with that then let us know how it all checks out. Plus don't forget about giving us some background info.


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Old 04/17/2012, 08:10 AM   #9
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Default Re: d16z6 cranking but wont turn over

I'm not saying its not the rings. But nick how many times have you or I started a car with it running only 3 cylinders sometimes 2. More than what we should.

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Old 04/17/2012, 02:52 PM   #10
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Default Re: d16z6 cranking but wont turn over

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I'm not saying its not the rings. But nick how many times have you or I started a car with it running only 3 cylinders sometimes 2. More than what we should.
Bobby, how many times has not having spark or fuel caused a compression tester to read low compression for a cylinder? When you posted what you recommended him checking was a good start based off of, car cranks but wont turn over? That title itself doesn't even make sense. If it's cranking doesn't that mean the engine is turning over? Anyhoo. I shall wait on a response.


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Old 04/17/2012, 03:38 PM   #11
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Default Re: d16z6 cranking but wont turn over

No I'm not saying that your compression is low cause of fuel or spark. Your missing the point. An looking over what I said. Take my crx with d15 for example how much oil did that bitch burn? Your civic injectors wire pinched 2 of your cylinders where the only thing that keep it running. The others weren't there at all. If he has two good cylinders with two shitty cylinders don't you think just maybe It would run? Starting from the beginning would be your best bet and looking at it thoroughly. Instead of jumping into Oo its the compression that is low. Which maybe the cause like I said I'm not saying it isn't but looming into the others deeper would help.

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Old 04/19/2012, 01:10 PM   #12
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Quote Re: d16z6 cranking but wont turn over

91 ef sedan with d16z6 swap running on a p28 I think. I got this car off jdm James last year and one of the dudes on here had it before him and he did the swap. One of the owners of j&s.

The engine bay and all the wiring is a nightmare. The car ran perfect from day one. Not a single problem. Drove for a year and hit a deer going 75. Right when I hit the deer my engine started to bog out. Had problems with it since. Won't start. Bogging out when givng it gas.

New alternator, battery, dizzy, spark plugs and spark Plug wires.

Sometimes we had to take an air gun and blow into the intake while staring the car to get it to start. Weird.

Got the car running right and sold it for 1000. Got the ek coup and had it for a month then a kid hits me, totaled. Went to buy the ef back and the kid pulled the dizzy off and clames he lost the bolts. I got the car back for 700 and here we are.

Towed to a friends house last night...aka such a bitch to put on a trailer. I would put up picks but idk how from a Phone. Is there an app for img codes?

Anyways. Changing drum brake pads on friends jeep and then will be able to get into the garage and see what's going on. Thanks


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Old 04/19/2012, 02:38 PM   #13
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Default Re: d16z6 cranking but wont turn over

main relay?

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Old 04/19/2012, 06:34 PM   #14
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Default Re: d16z6 cranking but wont turn over

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main relay?
maybe? I read alot of people having the same probleam as me and its the main relay but would that count for the low compresion? Someone said earlier they can still get a car started with low compresion. Its worth a shot. I found a few for cheap online.


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Old 04/20/2012, 09:56 PM   #15
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Default Re: d16z6 cranking but wont turn over

Main relay looks clean. Prong 4 was a little corroded and I cleaned it off. Everything else looked normal internally. There was some darker stuff almost looked like dried up oil or sap. I though maybe it burnt up a connection but after I cleaned that stuff up everything looked fine. I'm getting fuel. I can smell it. I might order another one and throw it in. See what happens. I'm in no hurry.


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Old 04/21/2012, 11:23 AM   #16
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Default Re: d16z6 cranking but wont turn over

I got a solution my buddy has a jdm D15B red top full swap buy it for 700 bucks lol

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Old 04/21/2012, 11:36 PM   #17
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Default Re: d16z6 cranking but wont turn over

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Main relay looks clean. Prong 4 was a little corroded and I cleaned it off. Everything else looked normal internally. There was some darker stuff almost looked like dried up oil or sap. I though maybe it burnt up a connection but after I cleaned that stuff up everything looked fine. I'm getting fuel. I can smell it. I might order another one and throw it in. See what happens. I'm in no hurry.
Hey there buddy....do one more check up for me before ordering relay. Get the ECU out of the vehicle and crack it open....this almost possibly sounds like ecu might have a burn issue on the board. Just check it out when possible and let me know...even if that isn't the issue at least you will have checked it all. Was the distributor a used unit or reman unit from a parts store. If from parts store then try to see about getting a used one from somewhere else and switching it....or just get a brand spanking new one altogether.

Let me know what you find in that ecu...whether it be good or bad!!


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Old 04/23/2012, 11:33 AM   #18
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Default Re: d16z6 cranking but wont turn over

I'll crack it open tonight. Yes, the dizzy is a reman from auto plus. If anyone has an idea throw it my way. Like i said I'm in no hurry but the faster i get it running the faster I can focus on other aspects of the car.


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Old 04/23/2012, 02:56 PM   #19
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Default Re: d16z6 cranking but wont turn over

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Main relay looks clean. Prong 4 was a little corroded and I cleaned it off. Everything else looked normal internally. There was some darker stuff almost looked like dried up oil or sap. I though maybe it burnt up a connection but after I cleaned that stuff up everything looked fine. I'm getting fuel. I can smell it. I might order another one and throw it in. See what happens. I'm in no hurry.


so have you heard the main relay click tho? i can't remember if it clicks 2 or three times. one when you turn the key to the on position, two after the fuel pump is primed, an the third i can't remember. you can smell the fuel where? in all four cylinders? or can you just smell it? do you have all your injector clips plugged in tight? and in the right spots?

just dont over look things. it could be another problem but you will be pissed if you went right by it.

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Old 05/01/2012, 06:45 PM   #20
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Default Re: d16z6 cranking but wont turn over

I cant really hear the clicks. I have never noticed them before so idk. I can just smell it. Its frustrating but ill figure it out sooner or later. I almost want to rip the motor out and work on everthing else and then come back to it but thats not smart. I just want to get started but i need to get the motor running first.


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Old 05/02/2012, 11:26 PM   #21
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Default Re: d16z6 cranking but wont turn over

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I cant really hear the clicks. I have never noticed them before so idk. I can just smell it. Its frustrating but ill figure it out sooner or later. I almost want to rip the motor out and work on everthing else and then come back to it but thats not smart. I just want to get started but i need to get the motor running first.
Hey whats your name.. I live in waterloo I should be able to help.


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Old 11/23/2017, 08:34 AM   #22
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Default Re: d16z6 cranking but wont turn over

Hello! I'm not an expert in all this yet, but I'm interested in such questions. I esteem your opinions, I think it will come in handy.

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