lakewood

On 4/26/2017 at 9:12 PM, fjh said:

Yup keep us posted thats what makes it better here!

Ended up being the cold start valve was stuck. It's always something! Lol thanks for the help

On 4/26/2017 at 2:34 AM, blackdog2 said:

Is that the truck that jay has for sale  ????????  1994 DM-690sx

Just sold the 94 to a guy a Branford . Kept the 95. 

Went for FAI and failed due to bushings on tag axle torque arms  I have 58k rears does anyone know which size torque arms i need?

Well the tow truck just pulled my truck put of my driveway. We will see b what the problem is and I will let you guys know. Thank you all for your input and I must say this is by far the best trucking community one the Web. Thanks again guys!

37 minutes ago, mrsmackpaul said:

and some more if the exhaust manifold is leaking that should be a pretty big hint as to where the problem may lie 

Yes I ran the truck without the air cleaner pipe and it did spin by itself. But the manifold was smoking. 

2 hours ago, BC Mack said:

Lakewood

did you do the check Paul suggested? pull off the air outlet hose, if the blades aren't spinning when the engine is running it make be broke off on the exhaust side. I know you have already stated the turbo was ok but this will confirm that the exhaust side is still driving it.

smoking exhaust manifold is not usual... if the exhaust can't get out due to a blockage, that's a clue worth following up.. is it some oil just burning or is it forcing it's way past the gasket?

if turbo functions correctly you can take the exhaust manifold off and see if one of the ports is giving off excessive smoke or full of oil as the engine runs

have you done the cylinder cut off check yet?

that should keep you busy until a mechanic turns up.... LOL

BC Mack

I took the air cleaner hose off turbo and checked if blades were spinning and they were. 

14 hours ago, mrsmackpaul said:

with air cleaner hose of the turbo start it and run it and see with your eyes if the impeller is spinning 

Grey smoke generally means you have a air restriction on either the air going into the motor or the air going out 

It is most important you check it running with no air cleaner hoses connected to prove that it is on that side 

If that is done and it still blows grey smoke try the exhaust at the turbo just run it for a few seconds 

Once these two tests are done it will prove that these parts are or are not working right

 

Paul

When it is started and I Rev it a little smoke is coming out of my exhaust manifold. Not sure if that helps but every mechanic I've spoken to isn't available unt8l next week

47 minutes ago, BC Mack said:

Lakewood

small steps..!!!

primary tends to run about half full, consider that normal... not liking the water in sec... that came from the fuel tank... refill the filters with NEW fuel not from tank, when you get it running you need to try and isolate if a particular cylinder is giving you the problem...

not sure if we have determined whether you have a mechanical or electronic engine yet, have we???

it is a Mack 6cyl in line???

you need to do a cylinder cut out test... in general terms, with the engine running crack each of the steel lines that come out of the fuel injection pump, turn the nut about 1 flat and a small stream of fuel will come out, do one at a time and be prepared to add some throttle to keep it running... if you have a dead cylinder the rpm will not change at all, it's just like pulling the spark wires off your car but not as shocking..!!!!

if you think you can determine that one isn't changing the rpm, and the smoke clears up a bit, then you now have to determine if you have a problem in the pump or at the other end of the line the injector has gone bad, lost the tip, or a valve in the head has broken, or a cam issue.... all bets are off if electronic.

my gut feel is you have a cylinder filling up with fuel, that then burns in the manifold and may explain the excessive heat you state near the turbo... but I've been wrong before, a few times in fact..!!! LOL 

if the cut out test doesn't prove one cylinder, then you may have a timing issue in the pump or engine accessory drive.

sorry, just shooting in the dark here but these are tests you should be able to do with basic knowledge

and get that tank seen too, or if you fill from home, check that tank too

BC Mack

Oh sorry it's a mechanical  em7 300

When I say idle normal grey smoke was pouring out but she wasnt about to stall

28 minutes ago, BC Mack said:

Lakewood

small steps..!!!

primary tends to run about half full, consider that normal... not liking the water in sec... that came from the fuel tank... refill the filters with NEW fuel not from tank, when you get it running you need to try and isolate if a particular cylinder is giving you the problem...

not sure if we have determined whether you have a mechanical or electronic engine yet, have we???

it is a Mack 6cyl in line???

you need to do a cylinder cut out test... in general terms, with the engine running crack each of the steel lines that come out of the fuel injection pump, turn the nut about 1 flat and a small stream of fuel will come out, do one at a time and be prepared to add some throttle to keep it running... if you have a dead cylinder the rpm will not change at all, it's just like pulling the spark wires off your car but not as shocking..!!!!

if you think you can determine that one isn't changing the rpm, and the smoke clears up a bit, then you now have to determine if you have a problem in the pump or at the other end of the line the injector has gone bad, lost the tip, or a valve in the head has broken, or a cam issue.... all bets are off if electronic.

my gut feel is you have a cylinder filling up with fuel, that then burns in the manifold and may explain the excessive heat you state near the turbo... but I've been wrong before, a few times in fact..!!! LOL 

if the cut out test doesn't prove one cylinder, then you may have a timing issue in the pump or engine accessory drive.

sorry, just shooting in the dark here but these are tests you should be able to do with basic knowledge

and get that tank seen too, or if you fill from home, check that tank too

BC Mack

It keeps saying upload failed for my pics. So I started it up and it actually was idling normal but when I would.hit the gas black smoke would pour out and the pipe going into exhaust manifold would smoke

43 minutes ago, BC Mack said:

Hey there Lakewood....

as you can imagine for us, it is always difficult to help diagnose issues over the internet with just typed words... I have to do it over a two way radio with bus drivers so even talking doesn't really help when the driver is not mechanically minded or knows not what the parts are called...

so, are you able to take pics or video of the areas you are describing and put them on the forum..???

from the information so far you have been given a few pointers, you have probably a fuel system or maybe turbo issue, but it could be as simple as a blocked air cleaner, and these are issues easier to determine by experienced people at your location using eyes, ears, smell and experience BEFORE tearing everything off the engine.

if the smoking exhaust continues to smolder for 10mins after you have turned the engine off park the truck, you have oil or raw fuel burning in the stack .. 

with limited info we can only guess what is wrong and are not really helping you as whatever we say to repair you cannot do the work yourself anyway...

if you let us know which town you are in someone may know of a good/honest shop for you to get to fix it... watch what the guy does and get back to us if you need second opinion or parts suppliers.

we're all behind you, you came to the right place...

BC Mack

 

BC thank you for looking out, again I apologize I'm not that mechanically sound when it comes to diesel. I've tried uploading images and it keeps giving me an error message. Let me fill you in as to where I'm at with my "diagnosis" lol

Took hoses off going to turbo So i can spin the fan by hand and it spins freely so from what b I've been told the turbo isn't broken.

I removed my fuel filters and it seemed as if my secondary had some water and my primary was half way full with fuel???! Not sure why but I am filling them up as we speak and will put them on and check

42 minutes ago, HeavyGunner said:

Your fanning the clutch to make it over a hill?! I'm guessing since you're new to Diesel engines you're new to trucking. If not you should know better than to fan th clutch. Sounds like you need to take it to a competent Diesel tech and get it looked at. 

I know I shouldn't do that but in certain situations I have to to avo8d stalling on a hill coming from a r3d light. Just tried starting again she had a little trouble cranking. Got her started a d it would Rev then drop Rev then drop etc. While blowing grey smoke 

4 hours ago, fjh said:

So this is the the truck that you have been having the pulling issues with?

Your posts are rather Vague Bro ! You need to provide info here if you want help! Check the air cleaner  take the inlet off the turbo and check the wheel and shaft for movement if these trucks are new to you you may have the wrong muffler on or the muffler could be falling apart inside!Are the engines mechanical or are they electronic!

 

I apologize I'm new to diesel engines. Leading up to this I've had trouble with this truck pulling. Loaded down I'd have to kind of work the clutch from a dead stop pulling a grade t9 avoid it from stalling. I have a sister truck it's a 94 same motor and all and it's a completely different animal. She pulls stronger and gets ip to spend a lot faster. 

When started it idles terrible and when I give it Amy throttle it wants to stall. Silly question but it possible that the air cleaner is doing this?

4 hours ago, luke andres said:

e7 or em7      what transmissions      my 91 dm has an air line going to the bosch fuel pump  and with it not having air to it  it doesn't pull a hill worth a shit     found this out when I switched to a fuller 8ll and didn't have the air line hooked up 

4 hours ago, luke andres said:

e7 or em7      what transmissions      my 91 dm has an air line going to the bosch fuel pump  and with it not having air to it  it doesn't pull a hill worth a shit     found this out when I switched to a fuller 8ll and didn't have the air line hooked up 

When I start her up now she just pours black grey smoke also more oil on top of motor where breather cap is and 9ne l8ne from 8njector pump has oil on it where 8t go8ng into motor

I don't have the governor on. Now that it is light I see burn marks on my turbo and the pipeople going to my turbo. I also see oil on one of my lines going f49m injector pump into engine block. Again I'm new to the trucking industry as well as to diesel engines

4 hours ago, carlotpilot said:

?????????????

What's the question?

Positive.  I just started it again. And let it idle for a couple of minites and the round part to the left of my turbo that connects to manifold pipe hot real hot got pretty Damm hot

Yeah I was. But at idle it's spewing a ton of black smoke and when I tried to Rev it it wanted to stall not even drivable

Drove my rig all day parked her at home. Started her up after 20min of being home and grey black smoke started pouring out of my stack and when I would hit the throttle she would want to stall! Help please

If one injector is burning cooler than the other, does that mean it is bad?

E7 300 mack

So I have sister trucks. Bought them from gramercy demo our of Manhatten. Both rigs have 45k miles (I know right!) But over 25k in hours. My 94 runs like she is brand new but my 95 is a bit sluggish. I don't know how to fix this problem. The 95 runs great when cold but once she heats up I pretty much have to drop down to 2nd when climbing a grade the other one would take in 3rd he'll even 4th. Also hear a sputtering sound? Any help would be greatly appreciated 

1 minute ago, 2stacksuperdog said:

Donovan is in New Hampshire. If it has the mailhot piston then they're cheapest. Atlantic Star in chesire can change it 

have you heard of dependable hydraulic in north Branford?