Compression Test on my Jeep YJ - Is it Ok??

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Decided to do a compression test on my Jeep YJ, the engine is feeling a little weak lately so lets do a health check.
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Due to factors beyond the control of Flawed Offroad, I cannot guarantee against improper use or unauthorized modifications of this information. Flawed Offroad assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Flawed Offroad recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Flawed Offroad, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Flawed Offroad.
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[@SimplyMustGo]

My 2.5 had the same problem. But I just put a new 2.5 in and decided to be done with it.

[@demmarcsxr]

Ah, a man of culture. Fantastic compressor. Love mine.

[@FlawedOffroad]

It’s not the best for airing up tires but it runs my locker which is all I ask of it. It overheats on about the third tire

[@demmarcsxr]

@@FlawedOffroad mine airs up my tires faster than any of the other compressors in my group. Half of the other guys are looking to buy one of those right now. I also have my mounted under the hood, but not near the engine. I have it bolted where the old air inlet box went.

[@FlawedOffroad]

@@demmarcsxr we’re talking about the same crappy little red one? It takes 10 minutes per tire on mine to go from like 5 to 25. I have a dual compressor that isn’t mounted in the jeep that I used to air up most of the time(similar to maxi trac) that one is crazy fast like a minute per tire

[@oscarpuente2029]

outstanding!

[@andycocchia4202]

2 minutes in and I am interested to watch the rest. Mine does this but it has done it through 2 engines, even after cleaning the “new” engine up a little and brand new head gasket. That was like 50k miles ago lol so let’s see what you come up with

[@andycocchia4202]

I will also say my engine runs great. Coolant disappears somewhere but it has tons of spunk. It’s on tons and 40s and I wheel it often. Did like 30k road moles since June of last year. She runs great just spews oil when I’m at like 25-3k

[@FlawedOffroad]

yeah mine does most of its puking at higher rpm, its either blowby, a bad compression ring(not oil ring), or could be the head gasket between compression and oil passage. Either way its annoying but not bad enough yet for me to do any major repairs at this time. Ive been collecting stroker parts..@@andycocchia4202

[@vicgustafson8514]

The PVC system is pitiful. I fixed mine with an LS.😁

[@FlawedOffroad]

Solid fix 😂😂

[@Thexkidd]

What is the orange jeep thing on the wall? It’s damn cool. Where do I get one?

[@FlawedOffroad]

That’s a cylinder head off an old Willys flat head that I got and painted up.

[@vmexlife]

👌👌👌

[@fletchersfixit6358]

i wanted to go to bad lands but i was doing a oil cooler on my 3.6

[@FlawedOffroad]

I can assure you even with the rain, the badlands was funner!

[@fletchersfixit6358]

@@FlawedOffroad every time I’ve been there I wish it was raining and gets really dusty

[@kidd7359]

A catch can fixed the oily filter on my XJ. I also use a weed eater gas filter to meter the air into the crankcae

[@FlawedOffroad]

i bought a catch can, thought about putting it on the ccv side cause that sends oil into the intake too. never did anything with it though

[@kidd7359]

@@FlawedOffroad I eliminated the pcv. Metered air goes in the rear of my valve cover out the front, thru the catch can and into intake manifold

[@jeepindave5464]

Awesome man. Finally got my yj on my 78 ford dana 44 and disc brake 14 bolt. Just need brake lines and shocks before getting it new drivelines. What master are you using? Since I was dual disc I Settle on the 78 ford marquee with the 1 1/8 bore.

[@FlawedOffroad]

Rt offroad 31010. I tried running the Dodge 2500 and probably three other combinations

[@jeepindave5464]

@@FlawedOffroad awesome. Little steep. Worth the investment instead of adapting something?

[@FlawedOffroad]

It was like $300 when I got it, as a last resort cause I couldnt get anything else to work for a damn. the yj double booster from a 95 that everyone raves about has a shorter rod to the pedal so you lose pedal throw. I tried 2 different boosters and 3 or 4 masters and an adjustable prop valve and no combination of them worked for crap.

[@Nanan00]

I feel the pain of lost camera files, I filmed the rebuilding of my 5.3 for my YJ and was going to start posting videos on YT, turns out my brand new Gopro mostly just spits out corrupted files that even gopro couldn't help with. On the down cylinder try wet testing it and if it comes up a little bit try dumping about a quarter of a can of sea foam in the cylinder and letting it sit over night then spin the engine a few times and test again. The badlands are some nice trails, I used to go there as a kid as I am from the north west Indiana area.

[@FlawedOffroad]

its actually my nice camera that does it when the battery dies... instead of just shutting off I lose the whole file

[@jeepindave5464]

​@@FlawedOffroadyeah that happens because the file needs the end command or the file gets corrupted.

[@fletchersfixit6358]

118 is pretty low should be 130 and up

[@FlawedOffroad]

yeah it was 118 try 1, 105 try 2, both Dry. Then 130 with a squirt of oil. Just low enough to not do anything about it haha

[@bwhartman1]

Rule of thumb is 10%+-

[@theezeelife292]

I'm interested in that brake booster setup you have. One of my plans for my rig are Superduty axles. Did you do a video on that setup you got? If not, could you do a quick video on it? Would like to know what I'm going to be up against when i do the swap. It sounds to me like the rings on #5 might be going bad. It could possibly be the head gasket giving you a sign that its wanting to go out. Either way, unfortunately, the only way to know for sure is by pulling the head. I would say a valve stem seal, but your plug would be covered in oil if that were the case. That's the thing about the 4.0L. I'll run great even if it has issues, then just start running like crap.

[@FlawedOffroad]

I didn’t do a video about the brake booster per se but I did talk about it when I got it. I was rushing to get the jeep ready for smorr so didn’t video much. I believe its RT Offroad 31010 kzbin.info/www/bejne/bnOmppaNpsSKa8U

[@theezeelife292]

@@FlawedOffroad just watched the video and got a screen shot of the part number. Thanks a million, my man. Next time I'm in Iowa, if you're available I'd like to meet up with you. I drive a 18-wheeler cross country so I'm bound to cross through there. When I go through, I ALWAYS stop at the Iowa 80.

[@FlawedOffroad]

@@theezeelife292 I live 3 minutes from the iowa 80 truckstop so that would work with some advance notice. Message me on my facebook or my instagram

[@jasonpower5759]

I have a 4.7 stroker in mine

[@FlawedOffroad]

I wish I had one. I would like to build one I just have about 10 other projects looming over my head

[@_Vexzz]

you should make a hat

[@FlawedOffroad]

I plan to add more stuff. I guess I skipped the hat because I have a fat head and normal hats dont fit me so I cant even wear one unless I custom order it haha

[@FlawedOffroad]

@_Vexzz hows this? flawedoffroad.com/products/flawed-offroad-trucker-hat

[@jasonpower5759]

You would have alot more support from me ,but I sent you a message on messenger and you got mad and said it came thru as a text message.

[@FlawedOffroad]

I have no idea what you’re talking about. I went back and looked at the message. I never got mad or said anything about a text message I just didn’t know if you were a fan from KZbin or from Instagram that’s all I said.

[@jasonpower5759]

@@FlawedOffroad fan from KZbin

[@jasonpower5759]

@@FlawedOffroad if I remember it is actually not you that got mad . Cause you had just got back from wheelin and almost rolled your jeep or almost flipped it or something. I just to took how you answered what I was asking wrong... so it's not you