geldingmakr

Help-- Bad rings? with good compression? is that possible?

i have a 92 hatchback D15B7 with a bunch of miles (150-250k)... i just bought the car
last week... and i am having a time tracking down the problem... it feels like a
crankcase pressure problem that i had once on my 87 turbo supra..

the guy said the engine was rebuilt, and the head was ported and polished
and stiffer valve springs... and a slightly bigger cam form summit... and a prelude

intake??? is that possible?

i think the dude was full of cr@p... he said he had to use a vtech cam gear...
???? i am clueless on 4 cylindaer computer cars... so i believed it all.. i love the 92-95

honda hatchback...and i have been looking for one for over a year....

i did not notice the smoke on the test drive... but it is hard to see while driving
the windows are tinted very dark...

he told me the power did not come on until 6,000rpm... i was thinking that
was high...so i asked him how many rpm's it turned... he said, proudly.. 7500...

well... on the drive home i hit the stutter box at 6500... and the temp gauge got close
to the "H" ... so i am really doubting everything he told me about the car...


I am perplexed... I am having a blue smoke out the tail pipe problem...i am having
low power from take off... but no smoke at low rpm... at about 3,000 rpm
it starts surging power on-off (lurching forward)... and at 3400-3500 it takes off
hard... and that is when the smoke starts.... i suspected rings...
and it may still be... but i check the compression tonight...


and i had

1 2 3 4
189 190 189 201


that seems to me like really good compression.... can the rings be bad?
i would not expect burned valves with that compression... ?

the plugs are a week old and they have a yellow ash on them
with the Air conditioning on, it has zero power... and actually falls on it's face when i

press the gas pedal futher than it is ready for... i have to let off the pedal to get it to

gain speed??? do these cars have a mass air flow meter? or a throttle positioning sensor?
when over pedal it... it is running rich... letting off the pedal allows it to get in to the

ideal range... ( it has a air fuel mixture gauge and a after market tach)

it also has some oil that appears to be coming from the valve cover gasket... and some
oil that is coming out the exhaust ports and pooling on the exhaust manifold like in this

picture.


http://www.imagestation.com/pi...9.jpg


the idle speed is too high also... it idles at 1500rpm with the AC off... and 1000 with the AC on.
please help me think of what else to check, or how to verify what the problem is...

menkio

lol.. get your money back and kick this guy in the throat.

geldingmakr

the car is still really nice... i am wanting to do an engine swap someday anyway... but i was hoping to get about 40k miles on this one first...

DelSolSi93

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DewMota &raquo;</TD></TR><TR><TD CLASS="quote">lol.. get your money back and kick this guy in the throat.</TD></TR></TABLE>

geldingmakr

maybe i made the problem sound much more severe than it is... it did
smoke like i was on spy hunter there for a while.

i have changed the plugs they were fouled with a yellow ashy crust, and the pcv valve it was stcuk...

and it is running much better...i have stopped getting on it at WOT just for fear of bringing back the smoke... i need this engine to last while i save up for the swap, but i have still accelerated pretty steadily
and it has stopped smoking... and the surge of power is less noticeable...
it is more of just getting more power at 3500rpm now,,, and the on off power
between 3000 & 3500.... the tempurature is no longer getting up... and it runs
much better with the AC on ...


now the biggest problem is the fast idle... it is idling at 1500rpm... any thoughts?
I am going to check the timing saturday...