my friend has a 90 civic dx with a 1.6 sohc. It has a d15b7 head with diy port work, exospeed 909 cam everything else is pretty much stock. It keeps fouling plugs out fast, I changed them about a month ago and I just had to change them again. what could be causing this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by decible01 &raquo;</TD></TR><TR><TD CLASS="quote">my friend has a 90 civic dx with a 1.6 sohc. It has a d15b7 head with diy port work, exospeed 909 cam everything else is pretty much stock. It keeps fouling plugs out fast, I changed them about a month ago and I just had to change them again. what could be causing this?</TD></TR></TABLE>
Is it using oil? running rich? Right plugs? Is the engine in good mechanical condition? Compression test?

 

runs fine with new plugs in, does run a little rich. doesn't use oil, I haven't ran a compression test.

 

bump, please help friend needs it......

 

"Fouled" plugs doesn't narrow it down much... Look on http://www.ngksparkplugs.com for a set of pictures of spark plugs. What do they look like after they're 'fouled'. Oily? Too rich? Too lean? Too hot? Eroded? Can't help much until you say what's happening to them.

 

its like carbon build up, not really oily, but black. I tried hitting one with a wire brush, the stuff was pretty hard to get off. it does run kinda rich. Should I try a hotter plug?

 

bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by decible01 &raquo;</TD></TR><TR><TD CLASS="quote">... it does run kinda rich. Should I try a hotter plug?</TD></TR></TABLE>Maybe drop back the fuel so it's not so rich? Then try a hotter plug. Maybe one or the other will work better, you might not have to do both.

 

thanks allot, I will mess with it tonight or tomorrow.