Engine will not start up?

1986 Honda Accord Manual
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the car has a new distributor,coil,new wires everywhere between,new fuel pump,new water pump,new fuel filter,new thermostat,new plugs but it won't start. The car is fuel injected

everything works, it has spark,it has fuel when i open the bleeder vaulve but it wont start.

the car used to overheat so i think it might have a crackedhead gasket...maybe i dont have compression?

Hi brand0nmustdie,

You still have not tested the compression?

no i have not tested it, someone just suggested that that might be the case.
I'm not sure how i could test it at home without taking it in somewhere to be tested.

Hi brand0nmustdie,

You need a compression tester to do it.

Prodecure for testing is simple. If you can get a tester, I can show you how.

they came out 80lbs on the first cylinder, 110 on the second, 100 on the third and 105 on the fourth...
someone at autozone said they needed to be at least one hundred..

Hi brand0nmustdie,

I would say 125 psi is required and not more than 5 % difference.

Did you do a wet test? ie, put some engine oil in the cyliinders and test pressure again?

86 models sometimes have proble with valves not closong fully due to carbon getting into the valve seats. Turn the pistons down and give the valves some taps to get the valves to close fully and try again, might help unless the head gasket is blown ( you could try retorquing the head ).

86 models sometimes have proble with valves not closong fully due to carbon getting into the valve seats. Turn the pistons down and give the valves some taps to get the valves to close fully and try again, might help unless the head gasket is blown ( you could try retorquing the head ).[/quote]

how do i turn the pistons down?
how do you retorque a head?
if my head gasket is blown, is it repairable? if so how?
i've bought a lot of new parts for this engine and i would prefer not to have to replace the engine...
could you include some sort of visual aid if at all possible?
thank you.

Hi brand0nmustdie,

Sorry, I got no visual aids.

Turn Engine to TDC and from there turn another 90 degrees, piston would be halfway down.

Retorque means retighten the head bolts.

If the head gasket is blown, you need to remove the cylinder head, reface it and reinstall. If you do that, I would suggest lapping the valves.

how do you lap a valve?
what does TDC stand for?

Hi brand0nmustdie,

At the rate we are going, your car would still be in the garage by Christmas.

I would suggest getting a repair manual to speed up things and get a better understanding of repairs.

TDC = Top Dead Centre, ie when the no 1 Piston is at top. btw, you can only tap valves that are free, ie fully closed, turn 180 degrees to tap others, 180 degrees again two more times.

Valve lapping = Valve grinding or refacing the seats.

i have a 86 honda accord lxi ...
i took it for a drive a few weeks ago and it died on me.........it wont start it cranks but wont start
i did a fuel pressure test and its 41psi.... checked compression also plenty.... so i thought maybe pressure regulator wich i replaced and still didnt do it
so i went yesterday and bought an ecu still cranks but wont start if i prime the car it will start then die shortly after.....the injectors have volts but when hooked to the diode light things from auto zone they dont light up.....can this be a crank sensor?? or somthin like that? what whould happen if i wired my injectors to a switch and ran them all the time?
thank you for the help

Hi broncoswompinthatazz,

The noid lights not working indicates the injectors are not pulsing and it could be a fault with the distributor sensors or a faulty ECU.

Was the ECU that you replaced of the correct part number? Did you retest if the new ECU is good?

The injectors are gounded by the ECU to complete the circuit which pulses. If you ground the injectors circuits permanently, you would not be able to start as floodng would occur.

i didint test the ecu before i bought it but i belive it and the older one are in working condition cause my old ecu stats another car of the same year.....the part numbers are exactly the same... the car acts like it wants to fire for a split second then just cranks.....the ecu from the working car did nothing for mine whouldnt start it...... will the crank sensor do the same thing? cause it not to start?

Did you test if there are any sparks? Sparks should be bright blue and not orange, which means they are weak and could be a faulty ignition coil.

the spark is blue and long it will shoot almost a half inch or so.....its not spark tho cause it will fire when primed with gas or starting fluid somthing is not allowing the computer to sequince the injection because they get volts but no pulse so somthing is not allowing the computer to work i believe its the crank position sensor, that is part of the distibuter is there no way to check this part?? thank you

The crank angle sensor is in the distributor, the part nearest to engine. It consist of a pickup coil and you can test the resistance. Should be between 350 to 700 ohms.

Since you are getting sparks, it is not likely to be the distributor that is faulty.

Was the replaced ECM a known good one? The injectors depends on the ECM to gound the circuit and did you test the wire continuity from the injectors to the ECM?

Hi all, new member here.
I`ve got a problem with my son`s 87 Honda Accord.
It won`t start.
I`ve checked that it gets spark and that the timing belt is not broke. I`m assuming that it`s a fuel problem.
I changed the canister fuel filter under the hood about a year ago.
Is there a secondary filter somewhere else? like back at the tank?

This same thing ocurred about 3 weeks ago and I was able to finally get it started, by shooting starter fluid in the filter housing. I just figured that it might be bad gas, so I took it down to the gas station and dumped a can of seafoam in and filled the tank. Problem went away until today.
I sure could use some advice on where to look and troubleshoot...
Thanxxx

I was able to get it started again after depressing the accellerator about a quarter of the way down and cranking for a while. Once it started and ran for about 5 minutes, I shut it off and restarted the car about a 1/2 dozen times without a hitch???
I`m still at a loss at what is causing this problem??? Is there a secondary filter at the back on FI models???

After dumping in the foam cleaner, you may experience a number of problems with fuel line. I might suggest that you pull out the injectors and clean them. I would suggest after a short time to pull the filter and replace it. If the problem persists I would suggest getting a fuel pressure check. Let us know how you are doing with the vehicle.