6th cylinder not firing? (fixed)

[MA70 Ed]

random "break down"

i was driving around town when all of the sudden it had no power and the car started shaking pretty bad.

reeks of gas out the exhaust, so i'm assuming a cylinder isnt firing.

checked it out today, all plug wires are on the plugs, plug valleys have little oil.
i swapped plug from cylinder 1 to cylinder 6 and it's still not firing (to check, i take off the plug wire from the dizzy, and engine stays running the same)

are there any other things i should look into?

only thing i havent done is swapped plug wires, but those were installed less than 5k miles ago.

 

[87tomanymods]

have you tried checking for spark on that plug or are you just doing a cylinder balance test sounds like a wire or cap you can phisicly check it for spark with a screwdriver on the valve cover good luck

 

[MA70 Ed]

i took the distributer cap off and it looked fine to me, no excessive wear, i know it's getting spark because when i unplug the wire from the cap i see visible sparks (and felt it once or twice.. ouch!)

 

[dumbo]

check under the distributor cap wire, plug, TSRM

 

[MA70 Ed]

check under the distributor cap wire, plug, TSRM

dizzy cap - done
wire - unconfirmed
plug - done
TSRM - nope, checking

 

[dumbo]

wow i type slow.

so if yourgetting spark at the cap but not the plug, whats inbetween?

 

[dumbo]

try using a different wire for that plug
or a ohm meter if youg ot one

 

[MA70 Ed]

wow i type slow.

so if yourgetting spark at the cap but not the plug, whats inbetween?

uh.. OH OH!!! i know! the connecting rod!

 

[MA70 Ed]

i'm about to go to the autoparts store to pick up a set of wires.

 

[MA70 Ed]

i borrowed wire 5 and put it on plug 6 and it ran the same.

because plug 5 had no wire.


conclusion: wire 6 is shot prematurely. ftl.

 

[MA70 Ed]

here's how it's running.
http://www.youtube.com/watch?v=cRXFdRw1P0o

 

[MA70 Ed]

bad news, cylinder 6 has 70psi.

 

[MA70 Ed]

Blown Headgasket!!!!!!

 

[MA70 Ed]

at least i think soo..

i already have an HKS metal gasket.



what's strange is that i dont have the bhg symptoms most people experience, should i go ahead and take the head off anyway?

 

[benchwarmer]

Squirt some oil in the cylinder and test it again. If the numbers go up you have bad rings. If they stay the same then the problem is in the head. It could be a number of things and almost all of them require the head to come off.

 

[MA70 Ed]

well it's been going through coolant, and lots of white smoke come out of the exhaust.

hard to tell why since its so goddamn cold out.



im pulling the head tomorrow regardless.


and no blue smoke comes out at all. its always white

 

[MA70 Ed]

lolololololololol

 

[benchwarmer]

Looks like someone got pwnt by the Supra gods.

 

[johnathan1]

That looks like a Felpro gasket to me...doesn't appear to have the copper sealing rings n the water jackets either... Shave the head and replace with a dealer gasket! At least that's what I did, and it's been fine for years now...

 

[MA70 Ed]

it's stock.