AZGuy

iTrader: (1)

I have never dealt with kind of an issue before, would like some input into how bad I may be off.

Had an odd chain of events happen and will tell so you have the whole story, first noticed puffs of smoke coming from the vent in my kami hood this week. Thought as first I had just gotten some blow by and it was burning off but it continued. Car started to run funny, little putt, putt, putt at idle.

So decided to check things out today and decided to run a compression test and before I could run it found part of the rubber boot from the spark plug socket had been left in on the spark plug. Looked like it may have still been making contact so not sure there.

So did the compression test all but one cylinder was in the 160 range including the one with the goofy rubber left behind. One would not read over 120 and I disconnected, reconnected and ran a few times still the same.

All that said, how bad of shape am I in?

thendawg

iTrader: (2)

Prob trashed ring landings in that cylinder. Seems to be a common failure on boosted tc's.

crush02342002

iTrader: (2)

^^ agree

youv got a bad piston or a valve problem. Im willing to bet broken ring landing.

Syldrin

iTrader: (1)

if it makes you feel better my car reads 160 on all cylinders and 180 on #3

OuterHeaven

and I thought I was bad... 140,142,140, and 148. This is an 05 motor obviously.

a-mendoza

iTrader: (2)

x2

This is what lead to my whole build. If it wasnt for this i would still be rockin a stock motor on an S1 turbo kit.

brett561tc

how much vac are you pulling at idle?

crush02342002

iTrader: (2)

^^good question

AZGuy

iTrader: (1)

I am pulling about 20 inhg at idle, not sure if that is good or bad. I have know something was off on the engine but hadn't been to pin it down.

crush02342002

iTrader: (2)

20 isnt too bad...hmmmm

AZGuy

iTrader: (1)

It is 20 at best, it does occasionally flutter just as I give it throttle. Also forgot to mention that I was geting a decent amount of smoke out the dip stick tube while it was running when I took out the dip stick.

crush02342002

iTrader: (2)

its going to change with throttle input, at idle idealy you want 22inhg (after car warms up and at idle), 20 isnt too bad for idle but could be a sign of ring wear or just a vac leak. or valve.

AZGuy

iTrader: (1)

I wouldn't think vac leak since I check that pretty regularly. We will see this week how bad it is.

crush02342002

iTrader: (2)

I just threw that out there as a possibility of lower than norm vac reading.

SoccerBoy_AP

When I saw little puffs of white smoke from my vented hood it turned out to be the S/C seal going. Never effected performance but I took it to the dealer the same day.

AZGuy

iTrader: (1)

This issue started pre me rebuilding my supercharger, my SC is now completely rebuilt and running smooth.

Crush didn't mean to come off odd, I welcome any suggestions, why I posted.

BMXTurbo

Im at 17 at idle I have a vac leak?

crush02342002

iTrader: (2)

i didnt take it wrong, i got ya

crush02342002

iTrader: (2)

its possible...i dont know your setup but it sounds like a vac leak


http://www.youtube.com/watch?v=uixdw49Km4s

BMXTurbo

Thanks for the video! Im going to have to check for vac leaks. Car runs good and idles like stock though. Its an autometer boost gauge maybe Its not working right.