If you absolutely can't find a leak anywhere and it does the same stuff on Cale's tunes... I'd cram more air down it's throat, even if you find lowish compression.. It can't be that dang low compression, it pulls hard from what I hear. Throw an S467.7 FMW with a .90 housing at it to try to stuff more air in it to cool it off. Or just leave it and deal with it the way it is while you wait for the compression to get real bad then yank the engine. LOL

 

Backpressure reading is from the scan gauge. The boost is from my analog gauge. I still have it mounted in the Y pipe where Jake had the fitting. I'll move them over to the hot side. Glad to hear that those numbers look good!

 

Yes, it does pull hard, even thinking about pulling our little Geo behind the 5er next year. My wife will have something to go shopping with, that way I get her out of my hair, what's left of it, LOL It will be a few weeks before I can even get started, leave a house for six months and stuff goes to he!!

Next spring I'll swing by Texas, farther south then last year, and you can help me rebuild it, LOL. Probably only take us a day or two to do it, right, LOL

 

If I can round up a gauge I will do a compression check on mine when I do the studs. My gauge doesn't go high enough.

 

I think someone around here has a compression testing kit? At least I recall someone offering it to someone.

IDK, but MANNNN this thread took off. lol Enjoyed the read. Sounds like Glenn has got some testing to dooooo. Hopefully its a matter of needing more air crammed down its throat. Hate to see you have to replace the motor anytime soon.

 

I have the Harbor Freight one but lost the fitting for compression testing. I have a link for making one somewhere.

I really don't think I'm low on compression but who knows. I might have a couple cylinders low like Travis but they aren't low enough to cause idle issues. I wish I could break free of these house hold duties so I can 'play'!! LOL

 

If all 8 have dropped compression it would idle perfectly normal. Mine doesn't idle as smooth as it could. Its not bad, just could be better. Lol

 

Happy 10K Glenn! I can't remember what intercooler your running. Could there be an airflow issue there?

 

Glenn, did you just buy that cheapo one at harbor freight for 30 bucks, or did you get the spendy one? I notice the spendy one has all the fittings you need, but is 100 bucks more. I'm going to look what I have for fittings and go from there. The snap on kit I have for gas motors has a lot of different fittings, but probably not one that will fit. I'm not gonna spend the 130 or so for something I'm going to use one time.

Let me know if you find that link. Thanks.

 

I hodge podged one together from a harbor freight it worked for me but I dismantlement it due safety concerns. here is a link
https://www.ford-trucks.com/forums/1...r-mod-psd.html

and another that is a better way to go Homemade Compression Adapter - PowerStrokeNation : Ford Powerstroke Diesel Forum

I also think Bill did one too, maybe he will chime in ( if he is not to busy )

 

Thanks Rich. That looks pretty simple. I'll have to order that compression tester and make one of those up.

 

Makes sense Travis!

I have the SD IC Pete, I will be testing it.

Rich has you covered Darin. I went on Harbor Freight and I don't think they sell the US General item # 93644 anymore. Its a 18 piece kit and wouldn't you know it, I lost the one piece that is used to hock up to the gauge. Because of that is one of the reason's I blew off doing a compression test last winter.

This is a update, it was driving me crazy so I told me wife I'm going to go play with my baby for a few hours, LOL. Popped the hood and every thing looked good all around the turbo and collector. Then I noticed soot on the DP clamp, that makes # 1. I put it up on jacks and looked under. Found soot around the rear cylinder on the exhaust manifold drivers side, #2. Same place that the mule leaked a few years ago. Passenger side looked good, up pipes on both side on the exhaust manifold connections looked good. Then I noticed what looked like soot on top of the trans. My little flashlight wasn't telling me anything so I went and got my spotlight. Oh my oh my #3, the bellow on the drivers side has a split in it from rubbing on the top edge of the trans. I'll have to take the turbo off and get them out of there. I'll email Jake and see if he will do anything about it.

Now, after getting all this together last winter the very best boost was 35-36 and I don't think anything was leaking then. On this 10K trip I did notice that boost was down to 30lbs but didn't put 2 &2 together because I was backing out of it anyway because of EGT's. I defiantly still doing a compression test and if its low MIGHT consider rebuilding the motor. I'll hire my nephew who has all the equipment to get it done, with my help of course.

If it comes to that, I'll be calling you for sure Travis. I will not do a half *** job if it comes to that. I'm almost sure I'm getting way ahead of myself. HELLO HAIL DAMAGE MONEY!! LOL LOL

 

Wow, there are 3 things that are affecting your boost and egt's. Is it possible you had a manifold leak right away? That would have knocked the boost down some and egt's up some too. You had so much other stuff going on, maybe you just didn't notice it? I don't think you're gonna find anything wrong with the motor. I'd take care of those three things first, then see where you are at. If I were you and know I will be going on a 6 month 10k trip, I'd pull both manifolds, plane them, and put gaskets on. I'm not sure I'd even bother with pulling the vc's and doing a compression check at this point. I guess that's up to you. If it will make you feel better and get it out of your mind it may be worth it to do it and see.

 

Plane the manifolds and clean the heads.i then put a skin just to fill imperfections .i dont like gaskets as they are mostly just good to blow out.

 

No on the manifold leak. I remember looking at both of them because of the experience with the mule. I just dread doing that again on a 2wd, it was a PITA. Well, if I have to take the turbo off, the IC pipes, I might as well pull the VC's and do a compression check. Like you said, it will make me feel better. What I'm wondering about is why that up pipe is laying on the top downward edge of the trans. I do remember that I had a hard time making the connection to the exhaust manifold. Maybe I didn't have it tucked in there above the edge of the trans, I'm assuming at this point that it should have been.