ok I got 210 in cylinders 1-3 but cylinder 4 had none what so ever.......I was doin about 80 on the interstate, once I got off it felt like it had a miss, so after I got off worjk I went and got sparkplugs, changed them and nothin. I drove it back home and did the compression test...What could it b?

 

rings

Edit: I had the same problem once, turned out I had a hole in my #1 piston. But the car was smoking horribly. Is yours?

 

Check valve adjustment before you pull the head

 

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

Edit: I had the same problem once, turned out I had a hole in my #1 piston. But the car was smoking horribly. Is yours?</TD></TR></TABLE>nope its not smoking, I looked down the sparkplug hole, and I dont see a whole in the piston

 

There could be a valve stuck open or bent. Also, the head could be cracked or the the headgasket could be gone on that cylinder. I am NOT going to go as far as to say that is could be the compression ring, because you said there is no smoke. As mentioned before, check your valve adjustment first to make sure that's not the problem.

Chris Chase
'02 Accord LX
'92 del Sol S

 

im pulling the head off now and will popst pics as soon as im done

 

here's the aftermath

 

looks like I need a new valve, there's no damage to the piston at all .anyone have a idea of what could have caused that? Btw thats the exhaust valve that has a hole in it, that explains Y I wasnt getting no compression

 

I filled up the night before and put a whole bottle of Prestone 0-60 Octane booster, would that have anything to do with that hole in the valve??

 

HondaChris, what engine u'r drivin?

It may have to do with that octane booster, but thats not very likely. If you gas is not apropriate to you CR, the moisture will missfire, or detone... I'm not going to say "that's it", but I really don't think it has to do. Look on you header for that missing valve part, it has to be somewhere!

 

I doubt that the octane booster caused it entirely. It was probably either worn out or something hard got caught between it and the head and weakened it enough to cause that part to fall off like that. Did you ever find the piece that came out? I would look everywhere to make sure it isn't stuck in the exhaust port somewhere. You will also want to check the rest of the valves and make sure there aren't any stress fractures on any of them, since you have the head off anyway. At least you quickly found the problem without putting a whole lot of money in it first.

Chris Chase
'02 Accord LX
'96 del Sol S

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Raimundo &raquo;</TD></TR><TR><TD CLASS="quote">HondaChris, what engine u'r drivin?

It may have to do with that octane booster, but thats not very likely. If you gas is not apropriate to you CR, the moisture will missfire, or detone... I'm not going to say "that's it", but I really don't think it has to do. Look on you header for that missing valve part, it has to be somewhere!</TD></TR></TABLE> Its a b16A2 built with a compressin ratio of about 11.5.1-12.5.1....I run 93 in it, and its street tuned<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cachase1 &raquo;</TD></TR><TR><TD CLASS="quote">. Did you ever find the piece that came out? I would look everywhere to make sure it isn't stuck in the exhaust port somewhere. You will also want to check the rest of the valves and make sure there aren't any stress fractures on any of them, since you have the head off anyway. At least you quickly found the problem without putting a whole lot of money in it first.

Chris Chase
'02 Accord LX
'96 del Sol S</TD></TR></TABLE>I didnt see the piece anywhere, the plug that came out of that cylinder wasnt missing anything. Im takeing it to a machine shop and having it checked and have them put a new valve and new valve seals in, I figure I might as well sice I have the head off