got my d15b7 block with a d16z6 head. supposodly my block only came to me with 80k on it and i know for a fact the head has only 90k. but my car smokes really bad. piston rings maybe? any help would be appreciated. thanks

 

Is the head on yet? It could be your headgasket or possible your valve seals if it isnt your rings. Compression test your motor that will help you get an idea.

 

wut color is smoke?

 

did you machine the head? replace the headbolts? its prolly a blown headgasket because you didn't do it the proper way.

 

there is also a .001 chance you can have a clogged cat. i had a car with a clogged cat because it sat for years, and when i started it ran crappy, and smoked like a bitch... new cat solved the problem. but i dont think you have a clogged cat, also like he said, what color is the smoke?

 

the smoke is blue. im almost posotive i put the gasket on right. ran a compression check today and it was 165-170 all pistons.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MniMeHatch89 &raquo;</TD></TR><TR><TD CLASS="quote">the smoke is blue. im almost posotive i put the gasket on right. ran a compression check today and it was 165-170 all pistons.</TD></TR></TABLE>

ok so we no it is not hedgasket,,hedgasket wood be wite smoke obviusly..it cood be pistn ring or oil ring around pistns may-bee,,or sumting as simpl as valv cver gasket,o-rings,etc......do u see oil on motr any were? And all-so how much oil duz it burn..(do u hav to ad oil every week an all that?)all-so if u want 2 find out if it rings on pistson ,,go out on hi-way an drive it hard,,then when u shift see it it spits smoke,,that it usual indicayshin that is rings,,,,cood be so many things thoug..I notis that alot of honda motrs wit +80,000 miles just smok an burn oil..almost like its reguler 4 them..,,

 

its burns pretty bad. ill try the interstate thing out and see what happens. my valve covers gasket and o rings are good. i just replaced all that before the swap. i think im goin to get a block from a friend this weekend though for free and try it out. its in his car now and doesnt smoke so i will see how that works out. thanks for the help guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BRIJPURT13B &raquo;</TD></TR><TR><TD CLASS="quote">

ok so we no it is not hedgasket,,hedgasket wood be wite smoke obviusly..it cood be pistn ring or oil ring around pistns may-bee,,or sumting as simpl as valv cver gasket,o-rings,etc......do u see oil on motr any were? And all-so how much oil duz it burn..(do u hav to ad oil every week an all that?)all-so if u want 2 find out if it rings on pistson ,,go out on hi-way an drive it hard,,then when u shift see it it spits smoke,,that it usual indicayshin that is rings,,,,cood be so many things thoug..I notis that alot of honda motrs wit +80,000 miles just smok an burn oil..almost like its reguler 4 them..,,</TD></TR></TABLE>

Dude seriously either learn how to spell or dont even bother posting on this forum anymore...your info is pretty much useless cause you play kid games acting like you cant type...I hope a mod gets tired looking at how you type sooooon...

 

Big smoke is often due to worn Valve stems/guides. You did put a dial indicator on your valve stem playBefore assembly?? If not.. you get to do it now :-)
Rings also should be at least checked pull th oil pan and a piston seeing as the head will be coming off again.. and measure end gap also check the ring lands they are likely full of carbon.
Usually claimed "good' engine parts are simply Lies by the seller... absolutely check everything ..Before.. installs, nothing proves/disproves claims like a measurement.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MniMeHatch89 &raquo;</TD></TR><TR><TD CLASS="quote">the smoke is blue. im almost posotive i put the gasket on right. ran a compression check today and it was 165-170 all pistons.</TD></TR></TABLE>
check your spark plugs, the might too tight. Sounds dumb but you will feel dumber if it is that