Hi guys,
I got a new head today but I ran into a problem; the head on my Sohc zc reads "pm3-6" and the head Hmotors sent me reads "pm3-5". I tested all the gaskets on it and they all work but they're labeled for both 1.5 and 1.6. 1988-1995
Does anyone know if these two heads are the same?
The only difference I see in them is that on the pm3-5 head, the port for the carbureated fuel pump is sealed off and on my pm3-6 head it has a block off plate on it
Does the 1.5 an 1.6 use the same head?Will the cam shaft and dzzy off of my 1.6 sohc zc head fit this pm3-5 head?
I maybe confused but I'm thinking the porting is different and the pm3-5 means 1.5L meaning it will only work on a 1.5L engine. As far as I know my sohc zc is the same as the d16a6 except for the camshaft.
Also, is there a gasket for the radiator hose adaptor on the front of the head or do I need to use some sealant?
Thanks.

 

I found this but it didn't help much
https://honda-tech.com/forums/showth...=786093&page=4
My head was not even mentioned =[

 

yes,you can use it.(any sohc d-series,taking into account the 8 valve motors.If your engine has 4 valve reliefs in pistons-and the new head is 16 valve-replace HG + bolt that sucker on!) There ALOT of PM3-X codes from 88-00?,some have better cam profiles/oem ports than others)

 

Cool thanks,
I'll be using my sohc zc cam from my pm3-6 head. Hmotors said this was a sohc zc head, that's how I go it without the cam because they parted it. When I tested the gaskets on the ports for the exhaust and intake did seem a little smaller. I'll find out later

 

Just use Hondabond / Permetex Ultra Grey.

 

Umm I bought a PM3-6 head for my 1993 Civic DX 3 Door Automatic D15B7 and I am having ignition timing problems. My valve timing looks correct but my ignition timing needs more advancing and my distributor is at it's limit. Any help would be apreciated. The only thing I have not replaced on my engine is the igniter, coil, and spark plug wires. Do I need a PM6 head? Witch is the exact head that I need? I have set my valve timing retarded one tooth with good results for ignition timing but pour results for perfomance so I set it back to correct valve timing. My vacume reading says late ignition timing. This is frustrating but I know I will fix it soon. I need the car for college. Any ideas master techs hehe.

 

Check the timing on the cam, in relation to the crank, it's probably off a tooth or two