hi there honda tech. been a while since my last visit but im stuck between a rock and a hard place on this one and any knowledgable input will be appriecated. me and a buddy are rebuilding my d15b2. we are using a y8 head and trying to run OBD0 (None V for time being) We just finished installing the engine and it will not start. I have fuel, air, spark, compression and no c.e.ls.
It cranks strong, timing is perfect. But no bueno. My questions are Is there a difference in clocking D series piston rings. What would happen, If the rings were possibly clocked wrong, could this result with a "backwards compression stroke" Im Really Strumped On This One. And practically Pulling my hair out.
Before I pull the motor again.

Has anyone had this problem?

Thank Again.
(PM6 ECU A6 Dizzy Being Used All OBDO wiring and components Intake Manny Exhaust ETC.)

 

Okay maybe this is an easier ques. To ask...
Anyone ever pulled or replaced the rod bearings or
Piston rings with the engine still in the vehicle..???
KNOWING that main bearings are good..

 

I know you've checked this, but check your firing order again. Don't question it, just double-check it's right.

 

Yes I have several times... But I did reclock the rings ( by fsm diagram) and it feels slot better (compression) but I heard a rumor that some obd2 heads have a different firing order, can anybody maybe clarify if this is just a "myth" or...
Thanks again for the help.

 

It didn't make sense because when motor is at tdc the rotor is on #1...

34
12. Exhaust
This is correct right... For a p2j-4 head (stamped 95????!!!!)

 

Anyone.... Lol
Does anyone know or have the intake port size/comparison between a d16a6 and d16y8
Reason for my asking is, is it possible my intake manifold gasket to be a little too small for the y8 intake ports.?? Which logically would cause the fuel to "run off" the gasket. Which would result in not enough fuel to combust... Right??? Anyone know???!!!
Please

 

My brain is hurting now.
Has ANYONE had anything similar to this problem before...

 

Lol Dang dude. As far as replacing rings and rod bearings while the motor is still in the car....been there and done that. Not an issue.

As far as having the ring orientiation incorrect, it's not going to cause the car to not start. Have you tried another ecu?

 

Ya already reclocked rings. (they were right tho). And I just got done putting a brand new b7 distributor. Because that was on one of my previous setups. And it changed it drastically! In a good way it really helped out now it actually wants to, and almost does fire over but same thing still. I have tried two other pm4's that a buddy lent. And it's the same thing. So I'm sticking to the pm6, I have heard alot of people running this type of conversion with no problems, so know I'm kinda trippin out haha!

 

take spark plug number one out and crank the car. when the pison hits tdc #1 the sparkplug will spark at #1

 

What about that little "gasket theory" haha
Any input on that..??
Again, fuel PRESSURE, timing, getting spark, new diz., got compression, no cel, attempting obd0 y8/b2 "mini me", main relay good... And if there's anything you think I missed PLEASE TELL ME!!!! haha. Thanks

 

why would you even use a a6 gasket. is there some short of shortage of y8 gaskets

 

What injectors and what distributor?

 

All obd0 fuel injection (and that's the reason for a6 gasket jakaz) and a d15 b7 distributor (to get the right ignition timing).

 

Anyone..

 

Check ur grounds i bet there is a ground that is missing or not grounded.

 

Thanks man but Im sure there's enough. Haha but just to be sure I threw another from cam cover to exhaust to chassis ground. But no improvement so I removed it. Now I have from neg. Battery terminal to body ground to transmission. Four running to thermostat ground. And one from d/s side of cam cover to body ground. Does that sound sufficient?

 

Okay so after alot of reading and examining I have foundsomething interesting to me about the y8 head if anybody knows, I have noticed with the b7 distributor it wants to fire alot better( because of the "pitch" of the b7 compared to a6) and I had thehead 2 teeth advanced according to rotor on cap. Now it is 2 teeth retarded(cam) and the rotor (ignition timing) is tdc.... Is this right for the y8 head w: b7 diz.

 

Not sufficient. The valve cover is not grounded. Put that ground strap on one of the header studs.

 

You got it will give it a shot...

 

You can't run the OBD1 distributor with the pre-OBD ecu. If you are running the pre-OBD injectors, I presume you have the resistor box still installed?

 

Helped out bro thanks! NowI have a cel "8" tdc pOsition... Help???

 

Yes stiLl have resistor car was running before. And can I not run obd1 because of spline count in diz. Right??

 

Obd0 disrubutor back on(pm6 d16a6), pm6 ecu, getting spark properly, getting fuel, all obd0 stock wiring, no check engine light, great compression, timing correct, trans and valve cover to ex. Mani. To chassis ground, thermostat grd.... Correct firing order.... Anything I'm forgetting?

 

Oh ya and cel #8 I mentioned was due to the disrtributor.