That's a lot of bent valves for this engine!

 

Its all wags without testing. Could be carbon, leaking inj, broken rings and the
list goes on. Thing about diesels is, if a person can get it to start they
will drive it no matter how it runs. They get abused. By that point it could be multiple issues
that stemmed from one. I have seen many diesels have leaky valves (turbo motors). This caused cyl/cyl's to wash down or cause excessive carbon behind the rings.
This accelerates the bottom end wear.
A blowby crankcase pressure test will show condition of the bottom end.
Mercruiser dumped the 7.3 line due to valve related failures.

Bill

 

I have some blow by(not alot) but it uses no oil. I have over reved the crap out of it. We where on a trip and the GP relay went out so the batts where already low so i am pissed at this point put some starting fluid in it and when it lit it pegged the tach. so I could have problems i am going to do some testing. on aleak down what are the specs. i have thought of doing a set of heads and cutting them some to help with the low numbers any of you guys ever do that ??? A fresh set oh heads never hurt . how hard is a head swap????

 

That one earned you ten eeks.
I'll wait to hear from you what you found.
And Bill, you sound like you have a lot of experience in this dept. so I will shut up now.

 

Now that we know about the starting fluid issue, maybe it's not too many bent valves for one engine.

Subscribing to find out what all is found on this.

 

I am going to do the leak down befor next week i will let you guys no whats up. let me in on the head swap on a 99 f350 and cutting them help any???? Kriston yelled what are you doing and i pulled the keys out of the ignition and her eyes where big as sacers because the truck was still pegging the tach . but the truck started after that and run ok. now has a bad miss.

 

After that little episode, this cannot be good.
The best case scenario is a broken rocker arm and the valve is not opening any more because of that.

 

Well i have tested for two days. I found 2 glow plugs with the guts half blown out. The part that the wire connects to was on an angle. when i tested it they would not glow . also found one more that was just bad so replaced all GP. I also pulled the injectors and found three that had bad copper washers . I will tell you that those contribution numbers dont always tell the truth. I replaced one are two injectors at a time i only had 6 . I looked at the oil exhausting out of the injector and the buzz is what i looked at . i replaced all the weak ones on the buzz then looked at the oil and they where some of the low contrbution numbers but you would replace one and it would make the numbers go up on some and down on others. crazy. I drained the oil and fuel like four times. The truck started with the remote start this morning with out a stumble. it was high 60s last night . before i did this it would crank over and over befor it would hit. I also changed all the oil even the hp pump. It is somthing i dont belive in but i thought i had the remote pump out and had oil all over every thing so i did it. Also did the heater bypass with the ranger bypass valve it works. I still think i will have issues this winter but i bought myself some time. Have any of you ever seen an injector plug are have carbon build up from low compresion or low compresion hurt a new injector in any way. i would say no but i am not a tech. Thanks. o i did pull all the push rods and checked the rockers all look ok.

 

Your post is hard to follow, but glad it looks like you are making progress. The contribution test will be skewed especially after pulling and replacing injectors. Those things need to settle in once the air is worked out of the oil in the HPO rails. I have found that mine will walk around some from cylinder to cylinder. I need to put my black CPS back on, but my truck does not have the problems yours does and runs like a beotch when I nail it.

 

what tool are you using to see your contribution numbers? I have the AE tool but when I run the test is just says OK, I don't see any other results.

 

Go into the live monitoring area and read the cylinder rotational velocity numbers for all eight cylinders. Just select each one per reading and view the results. Make sure the engine is up to temp.

 

I don't have cylinder rotational velocity as an option. the only thing I have that lists the cylinders is misfire count and even then it skips #7 for some reason.

 

http://kalecoauto.com/index.php?main...&products_id=6

its out of stock right now so you will have to keep checking.

 

Are you sure? What version do you have and which bundle? Diesel I hope.

 

I use a SOLUS that a buddy of mine has and i have a diablo preditor . They both read really close. On the oil in the rails i fill the resivor up and i have the cross over line and crack it untile i have good flow . I ussaly have to fill the resivor up twice hook the valve cover harnness back and it will crank as soon as you hit it. it takes a few for them to get to firing good . The glow plugs being messed up i think was one of the bigest issues i had. thanks for all the help and replys.