3rd Gen engine runaway

[CATCRACKER]

they make a 375hp version that is what banks started with for their sidewinder project!

 

[Vaughn MacKenzie]

Chris sorry to hear about your engine. Did you notice how high of RPM it went? Did it hit 5 grand?



Are you sure it's broke? One thing you could do is disconnect the hose going to the intake horn (which will prevent sucking oil from the intercooler if there is any there) and see if it will start or run.



Have you been in touch with Kwikkurt? If the '40 blew then the oil from that is probably what caused it. If you take the B1 off and find oil splattered around on the compressor side then it's suspect.



Vaughn

 

[ChrisRyan]

Vaughn, I don't know exactly what the rpms were. I know that it buried the tach but not exactly how high.



Does the computer keep track of rpm's? Maybe it would tell me its last reading before I pulled the keys.

No, I'm not 100% sure it's broke, but it did blow a couple of freeze plugs out and that can't be good. Hopefully I have time to crack it open saturday and see what going on.

I will talk to Kurt when I think I know something.

Thanks for the tips.

I'll post back what I find , maybe even have some good pics if I can figure out how to do that.



Chris

 

[Bob Wagner]

this reminds me of the old saying "fix it til its broke" sorry



you really are on a roll

 

[ChrisRyan]

Oo. :-laf

 

[Gonzo 1066]

You can have a turbo diesel "run away" due to leaky turbo seals. Engine oil will burn quite nicely in your truck it just takes quite a bit of it. Check your new turbo end and radial play. Check the charge air pipes for engine oil.

 

[nickleinonen]

Originally posted by Gonzo 1066

You can have a turbo diesel "run away" due to leaky turbo seals. Engine oil will burn quite nicely in your truck it just takes quite a bit of it. Check your new turbo end and radial play. Check the charge air pipes for engine oil.

another good reason for synthetic oil. it doesn't burn as well as dino oil...

 

[Rosco]

I am surprised nobody has said this yet so I will. I AM MY OWN WARRANTY STATION. I say this in good fun Chris because if I were in your shoes I would be projectile vomiting blood right about now.



One more thing. What was the louder, the engine giving up the ghost or the arse you blew when it did?



Again, all in good fun.



Rosco

 

[Vaughn MacKenzie]

Chris, a dealer or someone with a scan tool should be able to see what RPM the engine went to since that is stored, as long as it didn't max that parameter out. Man, burying a 5000 RPM Tach



Vaughn

 

[D.Thiele]

Chris, Where in Central TX are you?

 

[JGoodwin]

I agree. Most likely running on oil. Always keep a fire extinguisher handy in your truck. If it ever runs away spray it into the intake. Fire extinguishers are charged with co2. truck wont run with out o2. I learned that at cummins training.

 

[Rosco]

Originally posted by JGoodwin

I agree. Most likely running on oil. Always keep a fire extinguisher handy in your truck. If it ever runs away spray it into the intake. Fire extinguishers are charged with co2. truck wont run with out o2. I learned that at cummins training.

Actually there are different types of fire extinguishers including pressurized water, dry chemical, co2, and water/foam. Just make sure if you use this method you have the proper style extinguisher otherwise you may only worsen the situation.

 

[Trophy1]

When I was in the navy this was a common problem with 2 stroke 671 Jimmy's we had to put a piece of plywood over the blower air intake as the engine was sucking her own sump oil and running away untill it either tore itself up or had the air intake closed off with the plywood. Maybe a blast gate installed in the air intake system would be a wise decision.

 

[ChrisRyan]

D. Thiele, Home town of Zephyr, Texas (thats near Brownwood)

Oo. Oo. Oo.

 

[Prairie Dog]

I can testify those dry chemical (non C02) fire extinguishers suck. I put out an eng fire one time and the chemicals did so much damage I think I'd been better off letting it burn. Also, dont ever get it on your paint, it eats that too.

 

[SRadke]

Halon is a good option for engine fires. Not safe to use in an enclosed space though.



-Scott

 

[nickleinonen]

Originally posted by SRadke

Halon is a good option for engine fires. Not safe to use in an enclosed space though.



-Scott

only draw back is the very bad ozone depleating propeteries of it. r12 freeon is rated at 1. 0 in the odp. number below 1 is less harmful that r12, number above 1 is more harmful than r12. the halon extungisher gas' are all up in the 3. 8-4. 0 range... co2 is a more enviromentally friendly version, but yes, the halon works really well...

 

[GIT-R-DONE]

So, How does one stop the runaway engine? What are the options availiable? Thanks Don

 

[ChrisRyan]

Covering the turbo inlet would probably work, but try getting to it on a 3rd gen truck with all the hoses on. Not screwing up to begin with is best.

 

[Vaughn MacKenzie]

I would think you'd want something that will act FAST. When you get a runaway and you're engine's screaming at more than 5000 RPM by the time you open your hood, grab the extinguisher or something to try and choke it off, damage has already been done. I like the idea of a stove damper or maybe an exhaust brake type device to kick in right away. Maybe get fancy with it and have it kick in automatically at 3800 RPM or something.



Vaughn