rollydc69

Fixed!! Head gasket is not blown AEM EMS is locked on -17* on any RPM's of timing for some reason I went to AEM board to get some help Thanks HT

Updated Pics of the head gasket on the bottom TIA


I need help to figure out what is wrong on my car!! First:: it misfires really bad! second:: it wont accelerate anymore like before, the RPM wont get up faster anymore while i test drive it after i changed to the brand new spark plug, and the last is:: its smokes a lot while im driving, whit smoke!!!

i took pics of my exhaust and #3 spark plug and it's white.
TIA






Modified by rollydc69 at 11:36 PM 6/4/2006


Modified by rollydc69 at 6:50 AM 6/21/2006


Modified by rollydc69 at 6:50 AM 6/21/2006

igo4bmx

love the macro shots!

beak

white smoke is almost always coolant... the tip could be white from race gas tho :-D

coneheadsracing

Whats your setup, especialy fuel management setup? Could be ringlands.

rollydc69

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coneheadsracing &raquo;</TD></TR><TR><TD CLASS="quote">Whats your setup, especialy fuel management setup? Could be ringlands.</TD></TR></TABLE>

im using AEM 1040, Bosch fuel pump, RC 1000cc, Aeromotive Pressure regulator

blackeg

doesnt race gas usually burn more orange than white?

rollydc69

bump for more info before i pull the head off.

komat

leak down test

rollydc69

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

i dont have compressed air tank on my garage, i will try compression test later on.

Ringlands or headgasket?? what you guys think??

TIA

maddog20

Did your coolant overflow spill over?

komat

any oil lost?

rollydc69

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

no oil lost, i just did the compression test, with these results

#1 = 190
#2 = 190
#3 = 191
#4 = 195

CP 9:1 pistons.

TIA

igo4bmx

it could be the headgasket.
when you feel a loss of power, it's because the head lifts under boost and you lose compression because of it..
same thing happened to me, minus the white smoke

rollydc69

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igo4bmx &raquo;</TD></TR><TR><TD CLASS="quote">it could be the headgasket.
when you feel a loss of power, it's because the head lifts under boost and you lose compression because of it..
same thing happened to me, minus the white smoke</TD></TR></TABLE>

eventhough the compression is 190 across the board while we test it?? i hope is the head gasket, its easy fix

igo4bmx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rollydc69 &raquo;</TD></TR><TR><TD CLASS="quote">eventhough the compression is 190 across the board while we test it?? i hope is the head gasket, its easy fix</TD></TR></TABLE>

static compression would be good, but when you are boosting, you're head is lifting lose compression during that time.

D-meet07

What is the rule of thumb when it comes to the number comparisons??

rollydc69

Update: took the head out today! i think its blown

The block, it has black stuff beetween cylinder #1 and #2 and between #2 and #4





The Head gasket





I have some blue/green stuff on my IM and Intake head, Race gas???? Id been running C16 all the time.






TIA

B18C1CYA

looks like the gasket is shot , looks like you had some head lifting issues , if you look at the bore opening on the gasket it looks out of round as if the head or sleeves have walked around on it , and the green stuff on the intake is from race gas

rollydc69

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">looks like the gasket is shot , looks like you had some head lifting issues , if you look at the bore opening on the gasket it looks out of round as if the head or sleeves have walked around on it , and the green stuff on the intake is from race gas </TD></TR></TABLE>

how to avoid the head lifting , Increase the head torque?? i already torque it to 80 lbs/ft using the clevite assembly lube on ARP headstud.

earl

Your pix are too dark for me to tell much of anything. I think I would surface the head, put an oem intake gasket on, have the deck of the block checked for flatness and put on a new gasket. Torque your head to about 75lbs max as more than that can warp the head.

B18C1CYA

one more thing how many times have you reused them studs ??? I only use them twice and thats it , they do stretch

rollydc69

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">one more thing how many times have you reused them studs ??? I only use them twice and thats it , they do stretch </TD></TR></TABLE>

really?? this is the second time im gonna used it, its less than 75 miles on the motor/set up

D-meet07

If you have already replace the head gasket I would go ahead and get some ARP studs to be on the safe side.

rollydc69

Fixed!! Head gasket is not blown AEM EMS is locked on -17* on any RPM's of timing for some reason I went to AEM board to get some help Thanks HT