my truck smokes :( - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ocbaud · 12-09-2004, 07:40 PM

in the second video, you can see it smoke whenever i rev it up

i checked all the plugs and they all looked great. from what i see, it only does it when its in park and idling and i rev it like that. it doesnt smoke while i'm driving either.

www.ocbaud.com/videos/idlenew.AVI

www.ocbaud.com/videos/revlow.AVI

phantom dually · 12-09-2004, 08:37 PM

Thats called blowby!! when oil blows by the rings!!

Grande Rojo · 12-09-2004, 10:54 PM

ocbaud I've got a killer short block I'll sell you

Goodys86 · 12-09-2004, 11:10 PM

Do you have to add oil very often? From what I could tell it doesn't look that bad. Also, I have a video of my truck if anyone wants to host it.

cochran63 · 12-09-2004, 11:16 PM

My new 327 was doing something similar, it turned out to be the adjustment of my holley that was causing the proble's. I got it tuned up and havent had any more problems.

78chevstepside · 12-10-2004, 12:15 AM

Msybe it needs the patch

*1FaastC10* · 12-10-2004, 12:35 AM

my 355 did this when i built it in '98. i didnt have the time, or the money to tear it down and fix it. so i let it go. 7000-8000 miles later, it stopped. someone told me that it was the rings seating against the cylinder bores.

MylilBowTie · 12-10-2004, 12:46 AM

I would try a very complete compression test of the engine. This will tell you a little more about what its doing. I might be over looking it but it doesn't look like much smoke at all to me.

low 84 · 12-10-2004, 12:56 AM

a compression test won't really tell you anything unless there is a large difference in numbers cylinder to cylinder. you need to do a leakdown test if you want to check the rings.

MylilBowTie · 12-10-2004, 01:09 AM

Yes I forgot to add the more important of the two tests.

ocbaud · 12-10-2004, 01:59 AM

like i said, it only does it while i'm idling and not moving, i've had friends following me and they tell me that they dont see any smoke come out when i get on the gas hard.

whenever it is idling there is small amounts of fuel coming out of the exhaust, the carb is running way rich and will be until christmas when i get my pressure regulator.

James670X · 12-10-2004, 02:07 AM

I'm assuming your truck is carbureted?. From the looks of it I'd say it's running a little rich.

ocbaud · 12-10-2004, 02:11 AM

Quote:

Originally Posted by James670X

I'm assuming your truck is carbureted?. From the looks of it I'd say it's running a little rich.

a lot rich, but only at idle.

the edelbrock carb doesnt like more than 5.5psi MAX at idle and my fuel pump puts out between 6-9 psi at idle.

James670X · 12-10-2004, 03:07 AM

Blowby would make the tips of your spark plugs oily.
Have you considered buying a pyrometer or egt gauge?

ocbaud · 12-10-2004, 03:23 AM

all of my plugs looked just like this:

C-10volvo · 12-10-2004, 04:45 AM

thoes plugs look like the motor is rich. from what i can tell from the vid, the smoke is black, not blue. i think you should be fine when you get that fuel pressure regulator. or re jet your carb

ocbaud · 12-10-2004, 04:55 AM

Quote:

Originally Posted by C-10volvo

thoes plugs look like the motor is rich. from what i can tell from the vid, the smoke is black, not blue. i think you should be fine when you get that fuel pressure regulator. or re jet your carb

i cant ever see the smoke since i'm in the cab with my foot on the gas. the truck smells very rich though. and i wouldnt be able to tell if it was blue or white or what not since i'm color blind

low 84 · 12-10-2004, 09:31 AM

it most likely does it while your moving too, the smoke just dissipates into the air quickly when the truck is moving. when its stationary like that it just makes it easier to see. it doesn't really look like enough to worry about to me. get your carb dialed in and it might take care of it

ocbaud · 12-10-2004, 01:48 PM

i have some people on another forum telling me that my plugs look like they are running VERY lean??

phantom dually · 12-10-2004, 07:42 PM

Lean would be alot more white on the plug.

12-09-2004, 07:40 PM	#1
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	my truck smokes :( in the second video, you can see it smoke whenever i rev it up i checked all the plugs and they all looked great. from what i see, it only does it when its in park and idling and i rev it like that. it doesnt smoke while i'm driving either. www.ocbaud.com/videos/idlenew.AVI www.ocbaud.com/videos/revlow.AVI Last edited by ocbaud; 12-09-2004 at 07:56 PM.

12-09-2004, 08:37 PM	#2
phantom dually Project92 SWB stepside Join Date: Feb 2003 Location: Louisville KY Posts: 4,792	Thats called blowby!! when oil blows by the rings!! __________________ 92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448

12-09-2004, 10:54 PM	#3
Grande Rojo paper or plastic? Join Date: Nov 2002 Location: SW Missouri Posts: 671	ocbaud I've got a killer short block I'll sell you __________________ 1967 Chevy SWB 250 http://67-72chevytrucks.com/vboard/s...d.php?t=442157 1977 Chevy SWB 454 No More 454 getting 5.3 http://67-72chevytrucks.com/vboard/s...d.php?t=310518 1977 Stepside Truck of the month winner http://67-72chevytrucks.com/vboard/s...d.php?t=135524 1965 Chevy C10 454 http://67-72chevytrucks.com/vboard/s...d.php?t=731372 1975 Dodge Power Wagon http://67-72chevytrucks.com/vboard/s...=1#post7871388

12-09-2004, 11:10 PM	#4
Goodys86 Registered User Join Date: Aug 2004 Location: Jacksonville,FL Posts: 145	Do you have to add oil very often? From what I could tell it doesn't look that bad. Also, I have a video of my truck if anyone wants to host it. __________________ 86 C-10 SWB 2wd -355/TH350, 3:73's (Vin# says its a V6) Best ET: 13.0 @ 101mph (NA) 11.9 @ 108mph (100 shot) 02 Chevy 2500HD DMax (tow vehicle) 84 GMC Sierra 2500 00 Formula M6 hardtop

12-09-2004, 11:16 PM	#5
cochran63 Registered User Join Date: Jan 2004 Location: Oklahoma Posts: 1,057	My new 327 was doing something similar, it turned out to be the adjustment of my holley that was causing the proble's. I got it tuned up and havent had any more problems. __________________ Youth soon passes away, but immaturity can last a life time.

12-10-2004, 12:15 AM	#6
78chevstepside Registered User Join Date: Nov 2002 Location: lacenter, washington Posts: 718	Msybe it needs the patch

12-10-2004, 12:35 AM	#7
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,399	my 355 did this when i built it in '98. i didnt have the time, or the money to tear it down and fix it. so i let it go. 7000-8000 miles later, it stopped. someone told me that it was the rings seating against the cylinder bores.

12-10-2004, 12:46 AM	#8
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	I would try a very complete compression test of the engine. This will tell you a little more about what its doing. I might be over looking it but it doesn't look like much smoke at all to me. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

12-10-2004, 12:56 AM	#9
low 84 Registered User Join Date: Jan 2002 Location: Houston, TX Posts: 2,144	a compression test won't really tell you anything unless there is a large difference in numbers cylinder to cylinder. you need to do a leakdown test if you want to check the rings. __________________ '51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works '05 1500 Crew Cab RIP '84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker '80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's

12-10-2004, 01:09 AM	#10
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	Yes I forgot to add the more important of the two tests. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

12-10-2004, 01:59 AM	#11
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	like i said, it only does it while i'm idling and not moving, i've had friends following me and they tell me that they dont see any smoke come out when i get on the gas hard. whenever it is idling there is small amounts of fuel coming out of the exhaust, the carb is running way rich and will be until christmas when i get my pressure regulator.

12-10-2004, 02:07 AM	#12
James670X Registered User Join Date: Oct 2004 Location: Calgary, Alberta, Canada Posts: 34	I'm assuming your truck is carbureted?. From the looks of it I'd say it's running a little rich.

12-10-2004, 03:07 AM	#14
James670X Registered User Join Date: Oct 2004 Location: Calgary, Alberta, Canada Posts: 34	Blowby would make the tips of your spark plugs oily. Have you considered buying a pyrometer or egt gauge? Last edited by James670X; 12-10-2004 at 03:17 AM.

12-10-2004, 03:23 AM	#15
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	all of my plugs looked just like this:

12-10-2004, 04:45 AM	#16
C-10volvo Registered User Join Date: May 2003 Location: Lake Oswego, Oregon Posts: 1,028	thoes plugs look like the motor is rich. from what i can tell from the vid, the smoke is black, not blue. i think you should be fine when you get that fuel pressure regulator. or re jet your carb __________________ Ken Morgan For fun: 1964 Volvo 122 For slow: 1984 Chevrolet C-10 For everything else: 1997 BMW M3



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12-10-2004, 09:31 AM	#18
low 84 Registered User Join Date: Jan 2002 Location: Houston, TX Posts: 2,144	it most likely does it while your moving too, the smoke just dissipates into the air quickly when the truck is moving. when its stationary like that it just makes it easier to see. it doesn't really look like enough to worry about to me. get your carb dialed in and it might take care of it __________________ '51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works '05 1500 Crew Cab RIP '84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker '80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's

12-10-2004, 01:48 PM	#19
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	i have some people on another forum telling me that my plugs look like they are running VERY lean??

12-10-2004, 07:42 PM	#20
phantom dually Project92 SWB stepside Join Date: Feb 2003 Location: Louisville KY Posts: 4,792	Lean would be alot more white on the plug. __________________ 92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448

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