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#1 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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What's the differance...
I got a PM asking this, and I (think) I have it down...but was unable to put it into words....
What is the differance between a bog and a stumble? |
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#2 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: What's the differance...
I think a bog is a more severe form of stumble ??? Like maybe when it bogs, it doesn't hit on any cylinders for a while, a stumble is less severe, like maybe it hits on a few holes, for a shorter time, then recovers ???
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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#3 |
Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Re: What's the differance...
i always thought a bog is when it was firing on all cylinders but the RPM's are low so it's running really "chunky" whereas a stumble would constitute misfiring or backfiring.
shoot me if i'm wrong.
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If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. |
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#4 | |
Senior Member
Join Date: Jan 2005
Location: Raleigh, NC
Posts: 894
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Re: What's the differance...
Quote:
![]() When I go 4-wheelin' I bog the engine down when climbing hills sometimes (too steep!). When my buddies get water in their distributors from muddin' their engines stumble.
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-Chris Building a stripper, one part at a time: 1969 K5, 307, 3spd, 3 seats, hard top. Added Pwr Discs, Pwr Steering, Aux Battery, T-case Skid, Lighted Sidemarkers, HEI, Lock-Right Diff, ECE Class IV Hitch, 32" MT/Rs. Parts to Install: Hand Throttle, Console, Tow Hooks, Dual Horns, AM-FM, Dealer Swing-Away Tire Carrier, Gas Tank Skid. Also building a 1950 Willys CJ-3A and off-roading a 2001 Nissan Frontier on 1-Ton Portals... |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: What's the differance...
well ok, let me clerify.... bogging I am refering to is more like an off the line bog, when you are running too rich.... a stumble is supposed to be when you're too lean.
How does one tell a bog from a stumble? |
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#6 |
'Burban Legend
![]() Join Date: Apr 2005
Location: Mingo Junction OH
Posts: 918
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Re: What's the differance...
Andy,
This is how I see what you are asking. A bog is when the engine is getting more fuel than the RPMs can compensate for. (which is basically what towrig is saying in his particular case. (too high of a gear for the RPMs) A stumble is more of a lean condition problem, because you stomp the gas, and it takes a second for the fuel delivery system to catch up to the needs of the engine at a particular RPM. If I was going to describe it in a "sound",(don't laugh) it would be the difference between a "bowah"(bog) and a "phitwah"(stumble) You said you wouldn't laugh.... Just trying to put it in the simplest terms, since you asked. Take care, Mike
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'67 Chevy Iron City Beer Truck (9ft step) '67 Chevy Panel Truck 467 '68 Short Fleet 305v6 '68 McLaren Ramp Truck '68/'68/'70/'71 Burbs 292/366/402/454 '69 C-30 dump '71 C-50 dump and church bus '71 4x4 454 '72 Blazer (w/pop-up camper) $15 x-hooks '66 Chevy II 194/Weber '68 El Camino" 305v6 '69 Skylark 455 Buick '70 Chevelle 427 '71 Cutlass W-31 '71 GTO 400 2x2 "The 51" Chopped '51 Chevy (409) my first car OK Toad, we'll take 'em all... John Milner |
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#7 |
Registered User
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
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Re: What's the differance...
Here's my take...
Stumble=lasts only a second, comes out of it, without getting out of the throttle. Bog=Continues to pull down until you get out of the throttle. Does that make sense to anyone besides me?
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I think the world needs a drink... ![]() Help somebody...If you can....VanZant We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men. Tracy Byrd ![]() Member# 13924 '70 c10, 350/350 '68 c10 250/4spd '68 c10 no eng/trans fac ps/pb/ac/at (future father/sons project) '48 Chevy Loadmaster |
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#8 |
Where's my beer?
Join Date: Aug 2002
Location: I live in the state of denial....
Posts: 5,621
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Re: What's the differance...
I think sdkid nailed it dude! but what do I know?
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#9 |
Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Re: What's the differance...
Bogging to me is working extremely hard, but not getting anywhere, while a stumble is going like crazy, but misfiring for a second or something.
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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