just got a 97 prelude type sh that had piston slap in cyl. #2. rebuilt the engine w/new pistons, rings, wrist pins, and gaskets/seals. noise is now gone, unfortunatley it burns 1 QUART OF OIL EVERY 10 MINUTES !!!!!!!!!!! any help or ideas would be apreciated. also, the cyl. that is burning all this oil is #4.

 

Who rebuilt the engine? How do you know cyl 4 is the one doing it?

 

I rebuilt the engine. I am Honda certified from when I worked at a Honda dealership for 3yrs. so I know quite alot about Honda's but with this I'm lost. also the spark plugs in cyl.# 1,2,3 have some carbon on them but the one from #4 looks like it was dipped in oil. leak down tests were all perfect and the valve seals were replaced w/rebuild.

 

Well oil is getting throught the head gasket or the rings. A quart of oil in 10 minutes is ridiculous. Sounds like youre gonna have to take it apart again. Have you taken off your oil pan and had a look? How does you oil look? Does it look like it has fuel or smells like fuel?

When you rebuilt the motor did you hone it? Bored it? Sleeve it? What pistons did you use? Measure clearances?

 

I did hone it just to give the new rings a fresh surface. I was questioning the head gasket. Does it seal the oil supply for the vtec beetween the block and head? the car is at my work (52 miles away) and I have been very busy so I dont want to tear it back apart if I don't have to. just trying to see if I am missing that one little thing that make all the difference.

 

Did you check the block and head surfaces for warping before you put it back together? Did you remove/install the head bolts in the required steps/pattern? I mean, im assuming you know all this stuff since you are a certified honda mechanic but thats alot of oil being burnt up.

 

What was your honing procedure? If you are burning that much oil, there should be a ton of smoke. If you are leaking that much, there should be a giant puddle.

 

Brillo Pad.

Just kidding, just kidding...

I would think thought if the honing was done wrong all cylinders would be burning oil. No?

 

what did you use as break-in procedure?

 

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

Just kidding, just kidding...

I would think thought if the honing was done wrong all cylinders would be burning oil. No?</TD></TR></TABLE>

Who knows the consistency in his procedure. If his leakdown test was ok, then the oil-rings or the valve seals would be suspect imo.

 

I checked everything before reassembly. everything was good. as far as break-in, I have only run the engine 3 times for ten min. each due to the fact that there is an incredable amount of smoke. with the honing I did a light cross hatch pattern.

 

Did you use a honing machine? I hope you realize that the helms calls for a very specific honing procedure.

 

I did not use a honing machine. I used the 3 stone honing tool with the fine stones. I can't think of the name of the tool, but it is the one that is used with a drill. Like I said before I used it just long enough to clean the cylinders, not enough to remove much material. The gasket set that I bought may have been the wrong one but the ports all seemed to line up. The engine/car was all in pieces when I got it so I did'nt have an old gasket to reference to, but I could only use the head gasket and valve cover gaskets from the whole kit. All of the others were different. Does the h23 head gasket lookn similar to the h22a4? Maybe that is what they sent me for a gasket set and if so would that cause the internal leak that I have??

 

you remembered the easily forgotten valve seals and all v/c gaskets/orings, right...?

 

 

The honing tool I used was the same as the pictured. I did also replace all of the oil seals including the valve seals. Like I said before I just want to know if maybe I am overlooking something, but I am leaning towards an incorrect head gasket.

 

you should have just deglazed the cylinders. did you check the bores with a bore gauge after the hone, then make sure your piston to wall was within spec? did you line the end gaps up properly, or improperly i suppose i could say.


Modified by bluedlude at 5:11 PM 8/24/2007

 

Check your coolant for oil. That should give you and idea of the headgasket issue. What color is the smoke?

 

No oil in the coolant. Smoke is white. Oil dripping from my tailpipe. Bore size within spec. End gaps on rings all across from each other.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97typesh &raquo;</TD></TR><TR><TD CLASS="quote">I did not use a honing machine. I used the 3 stone honing tool with the fine stones. I can't think of the name of the tool, but it is the one that is used with a drill. Like I said before I used it just long enough to clean the cylinders, not enough to remove much material. The gasket set that I bought may have been the wrong one but the ports all seemed to line up. The engine/car was all in pieces when I got it so I did'nt have an old gasket to reference to, but I could only use the head gasket and valve cover gaskets from the whole kit. All of the others were different. Does the h23 head gasket lookn similar to the h22a4? Maybe that is what they sent me for a gasket set and if so would that cause the internal leak that I have??</TD></TR></TABLE>
If the only gaskets in the set that were usable were the head and valve cover gasket then that would be where i started. Probably the wrong head gasket causing all your woes.

 

when you say end gaps on all rings across from eachother, what do you mean? id hope you have a manual being a honda mechanic and all, because the gaps are anything other than across from eachother.

if all the passages on the HG lined up, i wouldnt think the thats your problem, unless you somehow got 2 bad gaskets . and if there is no oil in the coolant, how is there coolant in the oil?

 

The gaps on the rings are opposite of each other so that they don't line up. As far as the gasket goes, I didn't have anold one to compare it to because I got the car/engine all in parts.

 

No oil in the coolant. Smoke is white. Oil dripping from my tailpipe. Bore size within spec. End gaps on rings all across from each other.


I reference to that statement...

Oil burns blue...
Water burns white...
Fuel burns black...

im sure you know this... I HOPE you know this... but i guess if its dripping out the tailpipe it would be easy to dicipher from water as opposed to oil.

Doe this exhaust have no cat? I would thing it would clog that mo with the quickness.... just thinking here maybe it will make something click.

 

finally had time to pull it apart and everything looks ok. ordered head gasket from dealer. hopefully the problem.

 

Check the head too. Guides and seals. If your leakdown was ok, then the headgasket should be fine.