I've posted this before, but I was hoping for a little more help. I have 98sh with about 96k miles on it. I got water in my intake a little over a year ago and got my piston rods replaced along with a few other things. My car burned oil before and after, I burn about 5 qts in about 1000-1500 miles or so. I have taken it to my mechanic numerous times but I can tell he does not know much about preludes. I was hoping someone knows a good way to fix it? I wanted to hone the cylinders and throw in OS type S pistons, but don't know if that will do the job.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shrirag &raquo;</TD></TR><TR><TD CLASS="quote">I've posted this before, but I was hoping for a little more help. I have 98sh with about 96k miles on it. I got water in my intake a little over a year ago and got my piston rods replaced along with a few other things. My car burned oil before and after, I burn about 5 qts in about 1000-1500 miles or so. I have taken it to my mechanic numerous times but I can tell he does not know much about preludes. I was hoping someone knows a good way to fix it? I wanted to hone the cylinders and throw in OS type S pistons, but don't know if that will do the job. </TD></TR></TABLE>

well...it could be 1 of 2 things, or both. That is a lot of oil you are burning. When you changed the pistons and rings, you should have honed. my guess is either A, the piston rings never seated or B) the valve seals are really old, and leaking oil in the cylinders through the valve ports. Only way to fit out is to tear her down. But to find if the rings are bad, you can use a feeler gauge from what im told. if the piston to wall clearance is too much, then thats why you burn so much.

 

Have someone do a leakdown test. Although most mechanics carry the testing device and any mechanic can do it, I would advise finding a Honda/Acura specialty garage to perform the repairs from now on. The cylinder walls in the H22 are unique (if that is what you have)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by McLude2nR &raquo;</TD></TR><TR><TD CLASS="quote">Have someone do a leakdown test. Although most mechanics carry the testing device and any mechanic can do it, I would advise finding a Honda/Acura specialty garage to perform the repairs from now on. The cylinder walls in the H22 are unique (if that is what you have)</TD></TR></TABLE>

said he has a 98sh...I don't know why he wouldn't have one. He should though.

 

Doh, didn't read that part. Yeah you have unique sleeves, not sure if they are honed the same as other Honda engines, but either way, I would go to a Honda/Acura garage if I were in your position bro.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egcoupe94 &raquo;</TD></TR><TR><TD CLASS="quote">

well...it could be 1 of 2 things, or both. That is a lot of oil you are burning. When you changed the pistons and rings, you should have honed. my guess is either A, the piston rings never seated or B) the valve seals are really old, and leaking oil in the cylinders through the valve ports. Only way to fit out is to tear her down. But to find if the rings are bad, you can use a feeler gauge from what im told. if the piston to wall clearance is too much, then thats why you burn so much.</TD></TR></TABLE>

Well I never had the pistons changed yet, I have replaced the rings though. The first time it was done they are aftermarket rings done by the machine shop, but they didn't hold well. Then my mechanic replaced them with Honda Rings, but it still seems to burn oil. I would like to throw in bigger pistons either way and yes I will have to hone the cylinders. I don't know how much honing normally costs, but I got an email saying i can get a "type-S block" that i can just throw in the OS pistons. I will have the valve seals checked as well too. Thanks for the help guys.

 

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

Well I never had the pistons changed yet, I have replaced the rings though. The first time it was done they are aftermarket rings done by the machine shop, but they didn't hold well. Then my mechanic replaced them with Honda Rings, but it still seems to burn oil. I would like to throw in bigger pistons either way and yes I will have to hone the cylinders. I don't know how much honing normally costs, but I got an email saying i can get a "type-S block" that i can just throw in the OS pistons. I will have the valve seals checked as well too. Thanks for the help guys.</TD></TR></TABLE>

u would still have to hone the type s block to run OS pistons.

 

thanks for the help guys. anyone know the average price on honing cylinders? I will try to get to Honda ASAP and see what they say, especially since they have a free 40 pt inspection, but I shall see what they say as compared to my mechanic. I need to purchase these pistons too, if anyone knows a trustworthy/moderately cheap site, it would help. Thanks again.

 

Yeah. Remember, you don't necessarily have to go to Honda Dealership, just a shop that specializes in Honda/Acura or at least has a former trained Honda Tech. Honda can be very expensive at $75 an hour, and I'm willing to bet the 40 point inspection doesn't include a leakdown test. I think It's like "ok lets see you have all four tires, there's 4 points right there, your windows roll down, there's another point etc... I'm sure there are some shops w/ former Honda techs nearby just pick up the yellowbook.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shrirag &raquo;</TD></TR><TR><TD CLASS="quote">thanks for the help guys. anyone know the average price on honing cylinders? I will try to get to Honda ASAP and see what they say, especially since they have a free 40 pt inspection, but I shall see what they say as compared to my mechanic. I need to purchase these pistons too, if anyone knows a trustworthy/moderately cheap site, it would help. Thanks again.</TD></TR></TABLE>

its more expensive honing the h series because it takes more man hours because it must be done at 45-50 rpm. here is what helms says to hone the cylinders...
Cylinder Block
Bore Honing( H2341,H 2241engines) l . r b v ^ , ,
CAUTION: This cylinder liner uses FRM (Fiber
Reinforced Metal. Hone only !s directed below.
1. Measure cylinder bores as shown on page7 -16.
It the block is to be reused, hone the cylinders and
remeasure the bores,
2. To hone cylinder bores;
. Use only a rigid hone.
. Honing stone: GC - 600 - J or finer stone
(for nonferrous metals)
. Pressure: 2OO- 3OOk P;
(2-3 kg-cm' ,2 8 - 43 psi)
. Honing rpm: 45 - 50 rpm
. Honing thickness; Less than0 .02m m (0.0008in )
Do not hone mote than
20 cycles
. Honing lubricant Oil type
. Roughness of
finished surfacesV: VV or 1.2S
. Honing pattern: 60 degree cross-hatch
CAUTION: Clean the honing stone eyery 5 cycles.


3. When honing is complete,thoroughly clean the
cylinder block of all metal particles. Wash the cylinder
bores with hot soapy water. then dry and oil
immediately to prevent rusting.

NOTE: Never use solvent, it will only redistribute
the grit on the cylinder walls.

4.lf scoring or scratches are still present in cylinder
bores after horning to service limit, rebore the cylinder
block.

NOTE:Some light vertical scoring and scratching is
acceptable if it is not deep enough to catch your fingernail
and does not run the full length of the bore.

 

Yeah, something tells me that your mechanic didn't follow that procedure, which resulted in your current situation...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by McLude2nR &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, something tells me that your mechanic didn't follow that procedure, which resulted in your current situation... </TD></TR></TABLE>

and if the motor was cleaned, i.e. hot tanked, then it should be done BEFORE the hone is completed.

 

I will have to find a good machine shop to do the honing, if anyone lives in the metro jersey area, it would be helpful. Just to be clear, I have not gotten my cylinders honed yet, but I still do agree what was done on my car was not done properly. I just hope all of this will solve my problems, I have been waiting to have my prelude care free for so long. I have about a month and half before I start the work because I won't have a chance to give it until then. But I am going to start find a machine shop and parts now. Thanks for the help guys.