Not enough smoke??

[OKish]

hey guys, one of my buddies told me that it is bad that my truck does not smoke at all when its warm. i can get on it at full throttle and full boost and only a little grey puffs out. he told me that my EGT's are prolly really high from not enough fuel. is he right or wrong?

 

[Greenleaf]

Tell your well meaning friend that it's not a GASOLINE burner. Teach him a thing or two about the principle behind the diesel engine.



A Diesel does NOT require a 14. 7:1 air/fuel ratio.

If a gasoline engine has too much air it can caue problems internally as it will operate TOO hot.

 

[OKish]

Tell your well meaning friend that it's not a GASOLINE burner. Teach him a thing or two about the principle behind the diesel engine.



A Diesel does NOT require a 14. 7:1 air/fuel ratio.

If a gasoline engine has too much air it can caue problems internally as it will operate TOO hot.

it told him so, but he then reminded me that he was a "certified deisel mechanic" :-laf so... what should i do? make it smoke a lil?

 

[Greenleaf]

OMG!!!!



Are you serious? Is he really certified?? By whom?

So 60-70% of the diesels on the road today that operate efficiently are in poor operating condition (in his opinion)?



Yeah. Go ahead. Make it smoke if you like. You have a manual transmission!! By all means. Lug that sucker with out the afc connected. LOL That'll show him.



-S

 

[OKish]

OMG!!!!



Are you serious? Is he really certified?? By whom?

So 60-70% of the diesels on the road today that operate efficiently are in poor operating condition (in his opinion)?



Yeah. Go ahead. Make it smoke if you like. You have a manual transmission!! By all means. Lug that sucker with out the afc connected. LOL That'll show him.



-S

yea, he said "a healthy diesel should roll out a good amount of smoke at WOT. " So... how smokey will it be without the afc connected? lol

 

[Greenleaf]

Oh, I dunno..... sorta like... ... .

 

[OKish]

lol, maybe ill just turn the smoke screw in a turn or two. my ve pump has never been touched. this should be fun. =)

 

[JLEONARD]

Now this is a true story... I know one guy who has his diesel certification and he never turned a wrench. Read the books, took the test, passed. Honest.

No smoke in a diesel means low EGT.

my ve pump has never been touched

A virgin!!





You probably don't want loads of smoke at WOT... if you do you need more air.

But no smoke means it's time to do some tweakin'

 

[OKish]

Now this is a true story... I know one guy who has his diesel certification and he never turned a wrench. Read the books, took the test, passed. Honest.

No smoke in a diesel means low EGT.

my ve pump has never been touched

A virgin!!





You probably don't want loads of smoke at WOT... if you do you need more air.

But no smoke means it's time to do some tweakin'

so what should be my first tweak

 

[Smokey 01]

I would turn the fuel cone to the "richest" setting. This will increase bottom end and overall fueling. Plus you don't have to mess with turning the idle down. You can adjust how much smoke you get with the screw on top of the AFC housing. I probably took at least 3 seconds off of my 0-60 times on my 1990. If you can't get the smoke down to where you like you can always take the couple minutes and turn it down some.

 

[JLEONARD]

I would turn the fuel cone to the "richest" setting

I agree. This is the easiest. Also grind (sand) down the plastic sleeve that the cone rides thru. Make it about 1/2 it's original length.

You will like the result. But you'll be ready for the next tweak very soon.

Jay

 

[paccool]

Ah, another soul that has started down that slippery path! Pretty soon the Pastor will need to step in and bless this poor soul to help protect him! :-laf .

So far I have stayed on my feet as I went down that trail and the results are fun! Had to have Pastor Bob help me out a few times tho.

 

[OKish]

oh boy, i just got my boost gauge installed and i went for a drive. im getting 20 psi out of my stock truck. the only thing i messed with was the fuel cone, am i supposed to be seeing this much boost?

 

[Rebel Ram]

OMG!!!!





Yeah. Lug that sucker with out the afc connected.



-S

OK. Now I am confused. Figured I was finally getting this VE figured out. I thought the AFC pushed the cone down under boost in turn letting the pin ride into AFC chamber in turn more fuel.

Yes? No? Help!!!!

 

[HRDROKN]

OK. Now I am confused. Figured I was finally getting this VE figured out. I thought the AFC pushed the cone down under boost in turn letting the pin ride into AFC chamber in turn more fuel.

Yes? No? Help!!!!

In a nut shell... . Yes.



Correct me if I'm wrong, but I believe that when Mr. Greenleaf speaks of disconnecting the AFC... I think he is talking about removing the cone out of the AFC housing? :-laf

 

[RollOver_Pete]

But remember, black smoke = unburnt fuel. With todays fuel prices, why would anyone want to see money going up in black smoke

 

[HRDROKN]

Well, I'm sure that there is a limit as to when you will hurt your fuel mileage and a lot of that has to do with the juice peddle and speed you drive.

All I can say is that my fuel mileage has increased from when I started my mods. I'm now averaging just a tad over 17mpg and can smoke if I let the boost come down and mash the juice. Yes, doing so would tend to hurt my fuel mileage. Why would I want to do that? It is just a matter of :-laf :-laf :-laf

 

[bmoeller]

But remember, black smoke = unburnt fuel. With todays fuel prices, why would anyone want to see money going up in black smoke

If you have to ask, you wouldn't understand. :-laf I can make mine run clean, or smoke. Easy to control, empty anyhow. :-laf

 

[bmoeller]

hey guys, one of my buddies told me that it is bad that my truck does not smoke at all when its warm. i can get on it at full throttle and full boost and only a little grey puffs out. he told me that my EGT's are prolly really high from not enough fuel. is he right or wrong?

Your friend is a moron. In a diesel, lots of fuel, and not enough air, WILL cause high EGTs. Not lower. Get the pyro installed and show him. Or bring him to the dyno day, and I'll show him.

 

[Greenleaf]

That's kinda harsh. Perhaps he is misinformed.



To remove the AFC function altogether what I was refering to was internal pump surgery. Please don't remove the control cone from the afc. No afc function isn't for everyone and no my truck will not puke out super eclips clouds simply driving to the market... ... ... ... ... unless I demand it to.



A manual transmission will be worse becasue you have lost boost with each and every shift. And it ain't good to lug the getrag unless you have a nice shop w/transmission jack and don't mind pulling it to R&R bearings.



There is a local member here who wants tons of it. (smoke) He has a manual and I have driven it with my injection pump mods. Please see above picture. It's no exaggeration.