95 U240 Engine Removal

Topic: 95 U240 Engine Removal (Read 3763 times) previous topic - next topic

Re: 95 U240 Engine Removal

Reply #25 – August 25, 2016, 04:00:31 pm

Blow by is normal.

I was worried that oil rings broken and scoring the walls not the compression rings.

Re: 95 U240 Engine Removal

Reply #26 – August 25, 2016, 04:07:27 pm

The blow by from my CAT keeps the Hydraulic pump lubed and puts a nice protective coating on rear horiz frame tubing. Leave it to CAT to think of everything.

Re: 95 U240 Engine Removal

Reply #27 – August 25, 2016, 04:11:11 pm

John,

With that much oil in the blow by, have you calibrated the engine oil dipstick. Overfilling the crankcase is the #1 cause of excessive oil from the crankcase breather tube.

What is your engine serial number prefix? I should be able to look up the correct oil capacity for your engine.

Re: 95 U240 Engine Removal

Reply #28 – August 25, 2016, 04:18:18 pm

I will get that to you.
Thanks

Re: 95 U240 Engine Removal

Reply #29 – August 25, 2016, 04:19:18 pm

Quote from: wolfe10 – August 25, 2016, 03:55:24 pm

Do you have a lot of blow by?

You'll never see blow by either visually or from the "slobber tube" in most cases, since it can only be looked at when parked. I'd still like to know the mileage and service records. Something is very wrong here, and, so far, I'm freaked out about the oil consumption. Heck, I've had worn out stuff, burned a quart a week, big deal. Two gallons is a "BIG DEAL".

Re: 95 U240 Engine Removal

Reply #30 – August 25, 2016, 04:31:01 pm

Indeed, if compression is getting by the pistons/rings, you will be able to feel excessive blow by from the crankcase breather tube (AKA slobber tube).

Re: 95 U240 Engine Removal

Reply #31 – August 25, 2016, 04:49:12 pm

I pushed a paper towel into the crankcase breather tube (AKA slobber tube) and this is what the paper towel looks like. No oil just oily dry dirt.

Re: 95 U240 Engine Removal

Reply #32 – August 25, 2016, 05:14:07 pm

Any oil in your air system wet tank?

Re: 95 U240 Engine Removal

Reply #33 – August 25, 2016, 05:14:30 pm

Yup, that is what any pre 2007 diesel's crankcase breather hose will look like. Starting in 2007 they are closed crankcase (like cars have been for a LONG time). Yup, much easier to have a closed system when there is a vacuum to pull it in (gas engine).

Re: 95 U240 Engine Removal

Reply #34 – August 25, 2016, 05:38:24 pm

Quote from: stump – August 25, 2016, 05:14:07 pm

Any oil in your air system wet tank?

no oil in air system.

Re: 95 U240 Engine Removal

Reply #35 – August 25, 2016, 05:46:35 pm

With engine warmed up and running take off oil filler cap see if you feel a lot of blowby out of it. It seems if it's using that much in such low miles either you would see it in the exhaust. Is the exhaust pipe dry sooty or wet sooty,gooey paste etc.shout be dry sooty,try look at muffler see if it has any oil oozing on the seams.

Re: 95 U240 Engine Removal

Reply #36 – August 25, 2016, 06:39:35 pm

One thing to look at on some Cats is bad injector or seals. It depends on SER#. They send oil back to tank. Also cracked passages in head. No leaks, no smoke, this can be done in chassis.
Just a thought Mark C.

Re: 95 U240 Engine Removal

Reply #37 – August 25, 2016, 06:59:45 pm

Quote from: stump – August 25, 2016, 05:46:35 pm

With engine warmed up and running take off oil filler cap see if you feel a lot of blowby out of it. It seems if it's using that much in such low miles either you would see it in the exhaust. Is the exhaust pipe dry sooty or wet sooty,gooey paste etc.shout be dry sooty,try look at muffler see if it has any oil oozing on the seams.

Blowby is nominal/normal/some, but not bad. The pics in previous post shows blowby pipe normal also. NO smoke ever. Exhaust pipe dry black sooty.

The fuel in tank is clean,clear, slight green color, no oil in it.

Re: 95 U240 Engine Removal

Reply #38 – August 25, 2016, 07:47:49 pm

I have read all your posts on this including last years. The last trip where you were running 2200 rpm probably caused the increase in oil consumption and the heat made the oil pressure drop. If the oil pressure has returned to normal now and oil consumption is back to 1 gal. 450 to 500 mi. My suggestion would be to do the math and Delo 15x40 less than $13 per gal at Walmart would be compared to the price of the overhaul. How many trips would it take to break even doing the repair? You have stated everything else checks out good, so worn cylinders and rings are all that is left. Eliminate injectors on your engine as a oil consumption problem, that is on later engines. If the oil price is way less than the repair, use it until it gets bad enough to smoke or have other issues.

Re: 95 U240 Engine Removal

Reply #39 – August 25, 2016, 07:53:28 pm

You might also try adding some Lucas Oil Treatment. My generator was smoking quite a bit and last oil change I added a quart to the engine and it tightened it up no more smoke and actually runs smoother.Cheaper than a inframe.

Re: 95 U240 Engine Removal

Reply #40 – August 25, 2016, 08:46:23 pm

If this was my coach, the first thing I would do is take it to a good Cat shop and have them run a leak down test,this will tell you the condition of each cylinder.

Re: 95 U240 Engine Removal

Reply #41 – August 25, 2016, 10:07:55 pm

But Bill that is too easy to do and takes away the guessing game!!!
I had another idea but the moderator would have nixxed it ( I think)
JohnH

Re: 95 U240 Engine Removal

Reply #42 – August 25, 2016, 10:16:14 pm

If you are using a lot of oil, trying running a slightly lower oil level on the dipstick......

Re: 95 U240 Engine Removal

Reply #43 – August 26, 2016, 03:18:00 am

Vague memory of my customer running a lower oil level

Re: 95 U240 Engine Removal

Reply #44 – August 26, 2016, 08:32:06 am

Indeed, overfill the crankcase and it will "use" oil.

Correct capacity for the 3116 (at least the 1993) is 21 qts including oil filter (i.e. total oil used at oil and filter change).

Remember, Caterpillar did NOT supply the dip stick. Have you calibrated it?

Re: 95 U240 Engine Removal

Reply #45 – August 26, 2016, 09:18:29 am

A year ago I took the MH to HOLT CAT in longview,tx. After a day of working on it, they said they would have to take it father apart to determine the cause of the oil consumption(at that time 1qt/100miles).

A year ago I/we went through all the things about the problem. That stuff is all covered in the thread "Topic: Cat 3116 Excessive Oil Consumption" by pthurman48. Please read first.

Wolfe:
I have went through the dip stick thing several times, that is not the problem.

I now don't care about the cause of the oil consumption.

Back on topic, I want to know how to remove the engine from the MH. I was thinking that if the MH is on the jacks and raised as high as possible, the engine would be at the same height(the jacks raise the MH not the engine). Could that help create space to slide engine out the rear? What if you pull the head off first. What about cutting the load level ball type hitch out?

Thanks for all the help, keep it coming

Pat

Re: 95 U240 Engine Removal

Reply #46 – August 26, 2016, 09:26:08 am

Maybe you could rent something like this
Wheel Jacks

Re: 95 U240 Engine Removal

Reply #47 – August 26, 2016, 09:31:09 am

Quote from: stump – August 26, 2016, 09:26:08 am

Maybe you could rent something like this
Wheel Jacks

sure could make trying dropping out bottom possible. engine would have to be on rollers to get out from under the MH.

ideas!!

Pat

Re: 95 U240 Engine Removal

Reply #48 – August 26, 2016, 09:51:08 am

The only reasonable way to remove the engine is to take it out the bottom.

I removed one out the back, but the RV was getting scrapped and lots of metal was cut.

Re: 95 U240 Engine Removal

Reply #49 – August 26, 2016, 10:00:37 am

You could build a metal cradle that the block could sit in lower the Cradle down on two three or four sections of pipe lift the couch up high enough and then using the pipe as rollers rolling out the back removing a piece of pipe as it clears the cradle and put it on the other end till engine is clear for bus

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