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Compression test on 160K - 6G Celicas Forums

Topic #65390 10 posts Started by njccmd2002
njccmd2002
#1
Is there a compression testing sticky out there. I want to know how to measure my compression. I have the tool...

This post has been edited by njccmd2002: Feb 9, 2009 - 7:58 PM
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
blu94gt
#2
Pull the spark plug out of the cylinder you are testing and pull all the spark wires and the fuel pump fuse. Install the compression tester into the spark plug tube and turn it by hand so it's somewhat tight. Turn the key to let the motor turn over about 5 times and see where the gauge stayed.
1999 Celica GT
presure2
#3
>
QUOTE (njccmd2002 @ Feb 8, 2009 - 1:03 PM) *
>Is there a compression testing sticky out there. I want to know how to measure my compression. I have the tool...

its pretty simple.

warm up the car, then turn it off.

pull your EFI fuse in your engine bay fuse box.

remove spark plugs.

install tester in cylinder #1

hold throttle wide open, and crank the engine ~4 times.
record the reading, and do the other 3 the same way.

the bgb thats hosted on the main page sticky has the compression specs, IIRC it was ~ 147 or somthing minimum, with a max variation between cylinders ~14psi.
good luck! smile.gif
Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
njccmd2002
#4
so its a 2 person job, cause somebody has to hold the throttle. cool.
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
silver6gc
#5
>
QUOTE
>njccmd2002 Posted Today, 07:21 PM
so its a 2 person job, cause somebody has to hold the throttle. cool.


no, just hold the gas pedal down when youre cranking the car. the car isnt going to flood because you have killed the fuel
Trust me, I do this every day
njccmd2002
#6
ok cool, ill do it tomorrow before i return the tool and post resutls..
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
njccmd2002
#8
1st 210

2nd 190

3rd 200

4th 210


Little worried about the # 2. Recently my car has been consuming more oil. But most of it on the floor.

My best guess the oil pump, or IDK.

My spark plugs have a little snow? (white frost) Bad News? or ?
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
njccmd2002
#9
is the difference between 2 and 4 significant. I know is higher that 14
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
silver6gc
#10
You're ok, Toyota doesn't really have a specific number that they can be different, they go by a percentage. Your's all look ok, no problems with compression. Instead of 14 PSI it is more like 15% difference between the highest and lowest is acceptable, more than 20% difference and you should start thinking about a rebuild. You're only looking at just under a 10% difference there, it's normal.
Trust me, I do this every day
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