Hi everybody ! Last night after putting my car together and driving it for 20 minutes i threw the bearing now i need to ebuild my block but i tryna figure out what was it i would appreciate any advice !! here the deal :
B18b1 engine 95 Integra SE stock but 4-2-1 headers some exhaust and short intake i was driving with bad headgasket for year or so finally found time to change it thinking my head is not good i bought a head from HT member here send it to machine shop got the valve job done otherwise they said the head was fine Its the p75 head my old one is pr4y so i changed HG TB WP all the gaskets etc . Started the car everything was fine drove it down the block for 10 mins Oil pressure light came on i drove it back to the garage it made it shut it off checked everything started it again light came on again i pushed the gas pedal it started flickering so i thought its bad oil sensor put my oil pressure gauge read oil pressure is 0 hmm anyways drove it gain i heard this familiar noise the bearing makes boom my block is done !!!!
So i dunno what the problem is the car was fine before with my old head just the hg neded to be changed i think :
1.my old head was pr4y this one is p75 has better flow so it put more pressure on my old bearings and my block
2.there was a crack in the head so it didn't build the pressure (machine's shop fault)
3.could the cams be the problem so it didn't build the oil pressure ?
Does anybody has the same problem before ! I could use some help before i start rebuilding my block don't want this happen again ! I don't have much time and i need the car running soon !

Thank You!

 

Im sort of confused from reading that, but I want to try and help you.

1. All you did was switch heads and then this problem happened?
2. Head flow has nothing to do with your oil pressure problem.
3. There are lots of reasons for oil pressure problems. Camshafts are not a likely cause of this particular problem though.

Did the bearing actually spin? Did you shoot a rod out of the block?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">Im sort of confused from reading that, but I want to try and help you.

1. All you did was switch heads and then this problem happened?
2. Head flow has nothing to do with your oil pressure problem.
3. There are lots of reasons for oil pressure problems. Camshafts are not a likely cause of this particular problem though.

Did the bearing actually spin? Did you shoot a rod out of the block? </TD></TR></TABLE>

i know my english is hard to understand

yeah all i did was switching the heads from pr4 to p75
i didn't shoot the rod that's for sure did i actually spin it ...hmm maybe but not likely i'm gonna take it apart next week

i think its an oil pump ,the head is cracked inside or the camshafts ,because the oil pump pumps oil and if the camshafts are bad and there is too much clearence oil will shoot too much and that won't allow the oil pressure to build up !

thanks for your response ... i checked your website i wish i had somebody around here doing that kinda stuff cause i cant find anybody around here who knows what they doing when we talking about imports thats why i think machine shop screwed it up!

 

help anyone ?

 

Was your Oil Milky?

 

why the hell did you drive it when the oil light was on. that was just stupid in itself.

was oil kinda milky

 

Maybe coolant mixed in the Pan and spun the bearing lack of lubrication i seen some guy put on a b20 p75 head on a b18a and the damn motor Milked up nasty luckily he didnt drive it and caught it quick!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mak1e-Tee &raquo;</TD></TR><TR><TD CLASS="quote">help anyone ?</TD></TR></TABLE>

dont ever try to be your own mechanic ever... take it to a competent shop and stay away from engines altogether.

no competent shop around? Buy a engine from anywhere that you dont have to touch. If all this fails, poor you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Seminole &raquo;</TD></TR><TR><TD CLASS="quote">why the hell did you drive it when the oil light was on. that was just stupid in itself.

was oil kinda milky</TD></TR></TABLE>

No OIL WAS FINE !
Firs i drove it and the light started flickering so i returned back to the garage checked everything changed the oil sensor then i drove it for 10 minutes it was fine then light came on i drove it for about 15 mins n i never had a car in my life that lasted that long with 0 oil pressure so i thought it something electrical and rev it real hard that when all that happened !

 

live and learn

 

yeah, don't ever drive when that light is on...or rev really hard when it's on

 

That happened to my old d16z6. The oil light flickered and it went away for awhile. Then one day on a hot day i actually heard a fast whine it sounded like something in the engine spun in circles then the whole engine was vibrating a lot then i parked at a best buy lol. I opened it up few days later and found out all the main bearings plus 2 rods spun and the crank was scored to death. It had 160k on it. I guess the pump had to go out sooner or later

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris Tune &raquo;</TD></TR><TR><TD CLASS="quote">dont ever try to be your own mechanic ever... take it to a competent shop and stay away from engines altogether.</TD></TR></TABLE> X2

Some people should never work on cars.
Based on the information in this thread, you are one of those people.