zero compression in one cylinder?
03-27-2007, 04:11 PM
#13
3.0 BAR
Join Date: Jun 2005
Posts: 1,623
Re: zero compression in one cylinder?
Originally Posted by lilpooh21186
try puting some oil in the dead cylender if it has comp its most likly your rings thats how i checked my situation out
03-27-2007, 04:30 PM
#14
1.5 BAR
Join Date: Feb 2007
Posts: 1,087
Re: zero compression in one cylinder?
well obviously you don know ---- b/c the oil seals the gaps between the rings so if it has compression after you put oil in it its a good way to tell if you rings are bad. My car had 30 cpr when i put a capfull of oil in it went up to 180 were all my other cylenders were after the oil burnt off it went back down to 30 after a quick hone new rings my motor is fine. just b/c there is no cp in a cylender doenst automaticly meen the head is fucked.
03-27-2007, 04:47 PM
#15
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Join Date: Oct 2003
Location: Your mom's panties
Posts: 3,696
Re: zero compression in one cylinder?
It's probably not the rings, unless they exploded. If the rings were fucked up in any normal way he'd be getting low compression, not zero compression. Something is seriously wrong, like a missing, bent, fucked up valve or a whole in the piston.
03-27-2007, 05:14 PM
#16
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Join Date: Dec 2002
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Re: zero compression in one cylinder?
Originally Posted by TorganFM
It's probably not the rings, unless they exploded. If the rings were fucked up in any normal way he'd be getting low compression, not zero compression. Something is seriously wrong, like a missing, bent, fucked up valve or a whole in the piston.
bent valve will not yield 0 compression. Many people run with bent valves common mistake when a t belt breaks they just slap a new belt on. A bent valve will yiled poor performance and a ---- idle but it'll get ya to the bk lounge
I have blown up more motors then most small towns have so trust me if it is 0 compression there is a hole in a piston
03-27-2007, 06:00 PM
#17
Guest
Posts: n/a
Re: zero compression in one cylinder?
Originally Posted by gen4acclude
dude u r serious i bet right, cause if so that is just retarded putting oil in the cylinder will not give it compression, it a false reading due to the movement of the piston not to mention it will ---- up ur compression tester
03-27-2007, 06:07 PM
#19
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Join Date: Dec 2002
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Re: zero compression in one cylinder?
Originally Posted by ghettoturbo
i put a motor in for a kid that had sat for years in a yard...it spun around without making any real compression and wouldnt start. A little oil down in the cylinders and it started. (a little is an understatement, i probably used half a quart in total)
very true
03-27-2007, 08:04 PM
#20
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Join Date: Dec 2005
Posts: 2,081
Re: zero compression in one cylinder?
The last motor we toasted was a 05 hyundai tiburon 2.0L on 75 shot of juice. I did a compressoin test and get 0# in the #1 cyl. there was no hole in the piston, but one of the valves was bent and had a hole in it. If its that far gone putting some oil in the cylinder wont give you some magic compression numbers.
I will def. agree if you have 0# compression you def. have a hole in somthing.
I will def. agree if you have 0# compression you def. have a hole in somthing.
