You're suppose to disconnect your injectors so you're not flooding the engine full of fuel or pull your fuel pump relay, and disconnect the distributor to prevent spark. Then while cranking the engine you're suppose to be a WOT(wide open throttle). The minimal compression is 135 on these engines, which means this one does not meet the standards and needs new rings. Nominal pressure is 184 per cylinder with a variation of 28psi.
Anyone who sees this video do not use that engine restorer, I used it on 2 cars, and within weeks I had oil leaks all over the place, the product swells gaskets and causes them to fail.
Maybe you will have to watch the build and see what goes in this civic,it will be around 400 to 475hp range and i will do a 1/4 mile run before and after along with dyno runs. im not a big fan of the H swap but i do love k-swaps and boosted d16 vtec's built of course
well that is a start to a compression test find the problem cylinder but there is more to do for diagnosis. there are steps to determine if it's a valve issue. or piston and ring issue. as well as a leak down test. did you cover that in another video?
How do you remember where those plugs go back after? Also why does it say to disable the fuel injection system and the ignition system when conducting an engine compression test in the ASE exam materials.
Too prevent Sparks & Fuel Marrying each other on this critical test & to see "Cranking Compression", not "Vehicle Running Compression" @ this time. C.Compression is 1st Running Compression is 2nd Majority of Professionals "Butt Holes pucker up tighter than a snare drum on Engines that aren't a 4 Cylinder because it is time consuming when you conduct those Tests properly ( 30 minutes to 2 hours ) , especially if you have one of those 6 or 8 cylinder Sideways engines where the plugs are near the Windshield. Now thats the Mechanics that's still using the Good but Old Fashioned Compression Testers....Oops I forgot, the last test is way more time consuming than a Compression Test, it's called a Cylinder Leakage Test. Check this out , Smart Technicians don't even use Compression Gauges or Cylinder Leakage Testers anymore. These guys are laughed at but it only takes them 10 minutes or Less to conduct each Test. Big Dogs Neighborhood : www.automotivetestsolutions.com 4 -Channel & 8 -Channel Scopes www.picoauto.com 4-Channel ( Standard ) Scope www.aeswave.com Big Dog Cpany that sales the ATS 4 & 8 Channel Scopes......and the bad a_ _ Pico Scope. Hope this helps.
was the car in this vid a vtec motor and if so did you experience any future problems with the motor due to the use of the Restore? I've heard mixed feelings about using it with the variable timed motors. Thinking of using it in my sons '04 civic with the vtec due to oil consumption. I called Restore and they told my to try 1/2 the can first then drive 200 miles if no problems turn up add the remaining 1/2 can. They said the vtec can be a bit sensitive . saw your vid so I thought I'd get your thoughts. Thanks
I have a question I ain't real savy on cars but I'm learning..i have a 99 civic 215+miles..can bad compression cause oil to shoot up slowly but surely into my air intake houseing even doe I've changed my pvc valve ...clearly aware oil should by no means be traveling in the air intake breather hose connected to the head cover ...do u might shineing some light?
Well i have two different ones ,one is from Harbor freight and not very expensive but works fine,then i also have my snap-on which cost considerably more and does the same as the harbor freight one Thanks for the compliment!
You did not mention pushing full throttle while cranking, so I suppose you didn't.. Looking at your pressure also leads to believe you didn't as you want to see numbers around 150-180, or maby more on a good engine. Even 2-strokes have around 100-120! Doing a compression-test on a petrol-engine, that part i crutial. Although your results are impressive, they are sadly not very reliable because of the throttle part...
***** You are correct. You will not get true compression, and thereby reading, if the engine does not get as much air as it can. Petrol-engines have throttlebody that restricts airflow, thus creating vacuum in intake unless you open throttle wide open.
3.2.2019 Long Beach, CA. 1) Nowhere did you tell your audience what the Compression Specs. are supposed to be for this Engine 2) You didn't tell them that their Ignition System & Fuel System is supposed to be "Disabled" on ALL vehicles on Planet Earth. 3) Didn't tell your Audience that a Heavy Brick or Accelerator Depressor Tool should be on the Gas Pedal so that the Engine can Inhale as much air as it can . ...Now it's okay to crank the Engine while listening or watching the Gauge increase 4 - 5 times. I can tell that you are a good fella & mean well but I'd cringe to hear you ive Instructions for the Real Test " Cylinder Leakage Test" especially on 6, 8, 10 & 12 Cylinder Engines. This is Old School, like me, I'm considered Old. Born 1954. Year 2001 & Later, Big Dogs can cimplete a Compression Test within 3-5 minutes, even on a 12 Cylindee Engine. Pico Scope displays Color Printout of all Cylinders displayed in Vertical Buildings that show the customer a scale of 0 - 100% of each Cylinder. www.picoauto.com www.aeswave.com The other Big Dog Scope is a 4 Chaannel & 8 Channel outta Albuquerque, New Mexico called www.automotivetestsolutios.com One of ATS other Beauties is the ESCAN LapTop BlueTooth Scan Tool ( EScan Elite )..This Jewel will test all of your Catalaytic Converters with just a drive around the block, again will show you Grades of 0 % to 100 %.Eberybody knows 90 - 100 % is Excellent. 80 - 89 % CATS = Good 70 - 79 % = Fair. ( Wearing Out ) 60 - 69 % = Poor Less than 59 % = Ridiculous Customers won't debate or wonder aboutyour Diagnostics when you're utilizing Big Dog Computerized Printouts. It's already Year 2019. Step Up To The BigTimes.
Ye, fantastic advice. All viewers of this tutorial should definitely go out and buy a $1000+ scope to do a compression test on their motor. It's a great investment. When you're done you can use it do level out that uneven leg on your table in the second kitchen in the west wing of your vacation home in the Hamptons. "Money well spent" you'll think to yourself ten years down the road when you realize you still have it.
I have a 98 prelude, love that car but f!$#... I've had so many problems lol, even tho I drove it like I stole it. 2 engines down Haha. Thought about rebuilding my JDM H22A . That one broke timing belt when I was driving in the mountains in west Canada :(
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did that stuff work that you put in the oil
You're suppose to disconnect your injectors so you're not flooding the engine full of fuel or pull your fuel pump relay, and disconnect the distributor to prevent spark. Then while cranking the engine you're suppose to be a WOT(wide open throttle). The minimal compression is 135 on these engines, which means this one does not meet the standards and needs new rings. Nominal pressure is 184 per cylinder with a variation of 28psi.
punk3rz I had the fuel pump fuse out
why wot
Correct
So how do we now what caused the compression to be low?
clap clap clap
Anyone who sees this video do not use that engine restorer, I used it on 2 cars, and within weeks I had oil leaks all over the place, the product swells gaskets and causes them to fail.
Maybe you will have to watch the build and see what goes in this civic,it will be around 400 to 475hp range and i will do a 1/4 mile run before and after along with dyno runs. im not a big fan of the H swap but i do love k-swaps and boosted d16 vtec's built of course
You don’t have to disconnect the fuel pump fuse and open the throttle all the way and start the engine by bypassing the starter?
well that is a start to a compression test find the problem cylinder but there is more to do for diagnosis. there are steps to determine if it's a valve issue. or piston and ring issue. as well as a leak down test. did you cover that in another video?
What is considered a bad reading between cylinders? Percentage?
do you have to take off all the spark plugs to do the compression test?
Omar Corpes yes
Wait you mean i need to open my hood to do compression test? Dont tell me i need to use tools for this job lol hahaha
got a 98 prelude has low compression in piston 3 added oil I'm piston and compression stayed the same . could it be my head is bad
Do you have a link to the videos showing the 400 hp build?
Is that the D16Y7 motor?
How do you remember where those plugs go back after? Also why does it say to disable the fuel injection system and the ignition system when conducting an engine compression test in the ASE exam materials.
Too prevent Sparks & Fuel Marrying each other on this critical test & to see "Cranking Compression", not "Vehicle Running Compression" @ this time.
C.Compression is 1st
Running Compression is 2nd
Majority of Professionals "Butt Holes pucker up tighter than a snare drum on Engines that aren't a 4 Cylinder because it is time consuming when you conduct those Tests properly ( 30 minutes to 2 hours ) , especially if you have one of those 6 or 8 cylinder Sideways engines where the plugs are near the Windshield. Now thats the Mechanics that's still using the Good but Old Fashioned Compression Testers....Oops I forgot, the last test is way more time consuming than a Compression Test, it's called a Cylinder Leakage Test.
Check this out , Smart Technicians don't even use Compression Gauges or Cylinder Leakage Testers anymore. These guys are laughed at but it only takes them 10 minutes or Less to conduct each Test.
Big Dogs Neighborhood :
www.automotivetestsolutions.com
4 -Channel & 8 -Channel Scopes
www.picoauto.com
4-Channel ( Standard ) Scope
www.aeswave.com
Big Dog Cpany that sales the ATS 4 & 8 Channel Scopes......and the bad a_ _ Pico Scope.
Hope this helps.
The guy in the video didn’t do it like you’re supposed to that’s why lol
Fuel pump fuse was supposed to be pulled. And throttle was supposed to be open all the way
was the car in this vid a vtec motor and if so did you experience any future problems with the motor due to the use of the Restore? I've heard mixed feelings about using it with the variable timed motors. Thinking of using it in my sons '04 civic with the vtec due to oil consumption. I called Restore and they told my to try 1/2 the can first then drive 200 miles if no problems turn up add the remaining 1/2 can. They said the vtec can be a bit sensitive . saw your vid so I thought I'd get your thoughts. Thanks
to turn it over in the compression test is it just the same as turning the key to start the car?
I have a question I ain't real savy on cars but I'm learning..i have a 99 civic 215+miles..can bad compression cause oil to shoot up slowly but surely into my air intake houseing even doe I've changed my pvc valve ...clearly aware oil should by no means be traveling in the air intake breather hose connected to the head cover ...do u might shineing some light?
Question, you didn't intent to do a wet test?
I am curious what tester you have, and where did you purchase it from? Thanks a ton, I like your videos, keep up the good work!
Well i have two different ones ,one is from Harbor freight and not very expensive but works fine,then i also have my snap-on which cost considerably more and does the same as the harbor freight one
Thanks for the compliment!
so did that stuff work
Great video, thanks for the information!
That was easy, Thank u
hello i have the same motor wat is the highest compressin what would be normal for the motor
+jdm fatboy 120 is normal
Do you have to remove all the sparkplugs
You don't have to but i do so if there is a blown head gasket between cylinders it will show up and if the other plug is in then it can hold pressure
You did not mention pushing full throttle while cranking, so I suppose you didn't..
Looking at your pressure also leads to believe you didn't as you want to see numbers around 150-180, or maby more on a good engine. Even 2-strokes have around 100-120!
Doing a compression-test on a petrol-engine, that part i crutial. Although your results are impressive, they are sadly not very reliable because of the throttle part...
***** You are correct. You will not get true compression, and thereby reading, if the engine does not get as much air as it can. Petrol-engines have throttlebody that restricts airflow, thus creating vacuum in intake unless you open throttle wide open.
Yes
Cool man good video
can u do a compression test without the key is it possible
Late to the party, but yes, you would just need a remote starter switch. It's the easiest way to do it without a helper.
3.2.2019
Long Beach, CA.
1) Nowhere did you tell your audience what the Compression Specs. are supposed to be for this Engine
2) You didn't tell them that their Ignition System & Fuel System is supposed to be "Disabled" on ALL vehicles on Planet Earth.
3) Didn't tell your Audience that a Heavy Brick or Accelerator Depressor Tool should be on the Gas Pedal so that the Engine can Inhale as much air as it can .
...Now it's okay to crank the Engine while listening or watching the Gauge increase 4 - 5 times.
I can tell that you are a good fella & mean well but I'd cringe to hear you ive Instructions for the Real Test " Cylinder Leakage Test" especially on 6, 8, 10 & 12 Cylinder Engines.
This is Old School, like me, I'm considered Old. Born 1954.
Year 2001 & Later, Big Dogs can cimplete a Compression Test within 3-5 minutes, even on a 12 Cylindee Engine.
Pico Scope displays Color Printout of all Cylinders displayed in Vertical Buildings that show the customer a scale of 0 - 100% of each Cylinder.
www.picoauto.com
www.aeswave.com
The other Big Dog Scope is a 4 Chaannel & 8 Channel outta Albuquerque, New Mexico called www.automotivetestsolutios.com
One of ATS other Beauties is the ESCAN LapTop BlueTooth Scan Tool ( EScan Elite )..This Jewel will test all of your Catalaytic Converters with just a drive around the block, again will show you Grades of 0 % to 100 %.Eberybody knows 90 - 100 % is Excellent.
80 - 89 % CATS = Good
70 - 79 % = Fair. ( Wearing Out )
60 - 69 % = Poor
Less than 59 % = Ridiculous
Customers won't debate or wonder aboutyour Diagnostics when you're utilizing Big Dog Computerized Printouts. It's already Year 2019.
Step Up To The BigTimes.
Ye, fantastic advice. All viewers of this tutorial should definitely go out and buy a $1000+ scope to do a compression test on their motor. It's a great investment. When you're done you can use it do level out that uneven leg on your table in the second kitchen in the west wing of your vacation home in the Hamptons. "Money well spent" you'll think to yourself ten years down the road when you realize you still have it.
And what's the manual value?
This guy is doing it all wrong this this video down before someone else thinks they are a mechanic too. He doesn't even know the cylinder order
You can tell that you fixed something look how nasty your valve cover is and timing cover and on your restore result video it all looks replaced lol
400 hp yea right and I have a h23a1 twin turbo super charged with 20000hp
got a 98 prelude has low compression in piston 3 added oil I'm piston and compression stayed the same . could it be my head is bad
From what I know if you put oil and the compression still the same then the problem is not the piston ring, is the valves.
I have a 98 prelude, love that car but f!$#... I've had so many problems lol, even tho I drove it like I stole it. 2 engines down Haha. Thought about rebuilding my JDM H22A . That one broke timing belt when I was driving in the mountains in west Canada :(
Now it sits fkn h22a1 broken timing belt. Next!
@@ImaLoneWolfintheWoods tu lo que eres es un loco