Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Jeep Wrangler YJ
YJ General Discussion
Oil Leak and Oil Pressure
Reply to thread
Message
<blockquote data-quote="SirDoopYJ" data-source="post: 433819" data-attributes="member: 19139"><p>I did a leak down test on the 6th cyl. I bought a Maddox brand from Harbor Freight (all the brands on Amazon had piss poor reviews anyways). Ill just return the Maddox when I am done with it.</p><p></p><p>I warmed up the motor to temp. Basically, I had it idle until it hit 200F. I removed the spark plug on 6 and added the hose with a balloon on the otherside. I manually cranked the motor until the balloon started to fill(compression stroke). From there i stuck a screwdriver in the hole and found the top dead center. I turned the compressor on, plugged it into the leak down tester. I calibrated the gauges to 100%. I plugged in the hose back to the engine and attached that end to the tester. Here is my reading:</p><p></p><p></p><p>[ATTACH=full]119253[/ATTACH]</p><p></p><p>So even though my compression is 110, it looks like I am good? 13% leak with 110 compression makes no sense. Idk unless I did something wrong. I shouldn't have to check the other cylinders since the compression on those were 145/150. But then again, idk.</p><p></p><p>I still have the oil leak/burn. Idk at this point.</p><p></p><p> When listening for where the air was going I couldn't really tell. It sounded like alot was coming through the oil dipstick tube. When I listened through the exhaust, it sounded like the pipes had a slight vibration. There was no bubbling in the resovoir tank. I didn't hear anything through the throttle. At this point I am about to say fuck the synthetic and go back to coventional. </p><p></p><p>Spark plug bought 6 months ago:</p><p></p><p>[ATTACH=full]119255[/ATTACH]</p><p>[ATTACH=full]119256[/ATTACH]</p><p></p><p></p><p></p><p>Sound coming through dip stick tube:</p><p></p><p>[ATTACH=full]119254[/ATTACH]</p></blockquote><p></p>
[QUOTE="SirDoopYJ, post: 433819, member: 19139"] I did a leak down test on the 6th cyl. I bought a Maddox brand from Harbor Freight (all the brands on Amazon had piss poor reviews anyways). Ill just return the Maddox when I am done with it. I warmed up the motor to temp. Basically, I had it idle until it hit 200F. I removed the spark plug on 6 and added the hose with a balloon on the otherside. I manually cranked the motor until the balloon started to fill(compression stroke). From there i stuck a screwdriver in the hole and found the top dead center. I turned the compressor on, plugged it into the leak down tester. I calibrated the gauges to 100%. I plugged in the hose back to the engine and attached that end to the tester. Here is my reading: [ATTACH type="full"]119253[/ATTACH] So even though my compression is 110, it looks like I am good? 13% leak with 110 compression makes no sense. Idk unless I did something wrong. I shouldn't have to check the other cylinders since the compression on those were 145/150. But then again, idk. I still have the oil leak/burn. Idk at this point. When listening for where the air was going I couldn't really tell. It sounded like alot was coming through the oil dipstick tube. When I listened through the exhaust, it sounded like the pipes had a slight vibration. There was no bubbling in the resovoir tank. I didn't hear anything through the throttle. At this point I am about to say fuck the synthetic and go back to coventional. Spark plug bought 6 months ago: [ATTACH type="full"]119255[/ATTACH] [ATTACH type="full"]119256[/ATTACH] Sound coming through dip stick tube: [ATTACH type="full"]119254[/ATTACH] [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ General Discussion
Oil Leak and Oil Pressure
Top
Bottom