Home » Public Forums » GMCnet » Re: [GMCnet] EV6010 Stalling
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| Re: [GMCnet] EV6010 Stalling [message #321001 is a reply to message #320997] |
Mon, 24 July 2017 17:13   |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
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Has just got to be fuel related. Jim's suggestion is where I would start. You also might check the level of the ev. One side lower than the other would affect the float level.
Perhaps a pinched fuel line?
Does the Honda recover after the turn, or do you have to restart it? Would indicate initial low float level.
If you do not have a service manual, they are on bdub's marvelous site-at the bottom of the manual listings.
See you in Elkhart (shameless plug)
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] EV6010 Stalling [message #321020 is a reply to message #321012] |
Mon, 24 July 2017 21:35 |
Jim Miller
Messages: 501
Registered: March 2008
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On Jul 24, 2017, at 8:54 PM, scott cowden wrote:
> Might occur if the main coach fuel tank is low on fuel. pickup tube in the tank only goes to the 1/4 tank level, if you weren’t aware.
There would be plenty of fuel inventory in the carb bowl as well as in the fuel pump and filter to carry the genset through any conceivable turn on surface roads. If it were stalling on straightaway driving as well as turns then I’d agree with the too-much-air-in-the-main-tank diagnosis.
If he’s doing laps at Indy then that might be a different matter.
—Jim
Jim Miller
1977 Eleganza
1977 Royale
Hamilton, OH
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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| Re: [GMCnet] EV6010 Stalling [message #321024 is a reply to message #321020] |
Mon, 24 July 2017 21:47 |
Richard Denney
Messages: 920
Registered: April 2010
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I dunno, Jim, I once noted my Onan died on a long, sweeping left-hand turn
in Tennessee many years ago. Yup, I was getting down on fuel. That
generator pickup is on the left side on the transmission, and the lean in
the turn starved the pickup.
The fuel pump on the generator can't pump air, and once the reaches the
pump flow stops. The filter is on the pump inlet on a Honda, I suspect, and
it isn't very big. A bible would float through it more quickly that it
takes to empty it complexly. The float in that Onan carb wasn't big anough
to get around a long, sweeping turn.
Rick "costs nothing to check" Denney
On Mon, Jul 24, 2017 at 10:35 PM Jim Miller wrote:
> On Jul 24, 2017, at 8:54 PM, scott cowden
> wrote:
>
>> Might occur if the main coach fuel tank is low on fuel. pickup tube in
> the tank only goes to the 1/4 tank level, if you weren’t aware.
>
> There would be plenty of fuel inventory in the carb bowl as well as in the
> fuel pump and filter to carry the genset through any conceivable turn on
> surface roads. If it were stalling on straightaway driving as well as turns
> then I’d agree with the too-much-air-in-the-main-tank diagnosis.
>
> If he’s doing laps at Indy then that might be a different matter.
>
> —Jim
>
>
> Jim Miller
> 1977 Eleganza
> 1977 Royale
> Hamilton, OH
>
>
>
>
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--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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| Re: [GMCnet] EV6010 Stalling [message #321026 is a reply to message #321024] |
Mon, 24 July 2017 22:01 |
Jim Miller
Messages: 501
Registered: March 2008
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On Jul 24, 2017, at 10:47 PM, Richard Denney wrote:
> I dunno, Jim, I once noted my Onan died on a long, sweeping left-hand turn in Tennessee many years ago.
Hi Rick,
I have been burned by the 1/4-tank pickup tube too - as recently as last weekend - so I know where you are coming from!
His description was that the problem occurred on “SHARP right turns” (emphasis mine) which leads me to believe they were of short duration as contrasted with your long sweeping LH turn.
Right turns - especially those of short duration like I would expect a “sharp" one to be - would tend to concentrate fuel to the driver’s side of the tank where the genset pickup tube is located on GMC-upfitted coaches - thus *decreasing* the chance of starvation. Your long sweeping LHT would tend to concentrate fuel *away* from the pickup which would indeed increase the likelihood of starvation.
In any case the unit will, even at full load, be consuming only a few tens of milliliters of fuel per minute and there are many milliliters of inventory available in hoses, filters, pumps and the carb bowl to supply the unit through his seconds-long high-performance turn.
—Jim
Jim Miller
1977 Eleganza
1977 Royale
Hamilton, OH
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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| Re: [GMCnet] EV6010 Stalling [message #321047 is a reply to message #321026] |
Tue, 25 July 2017 08:19 |
Justin Brady
Messages: 769
Registered: April 2015
Location: Bell Buckle, TN
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It's only on right turns, which rules out the low fuel because the pickup is on the left.
It does completely die and have to be restarted.
I'm thinking it's got to be float height, fuel must dip below the main jet orifice when going around a right turn causing it to starve for fuel and die.
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455
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| Re: [GMCnet] EV6010 Stalling [message #321050 is a reply to message #321047] |
Tue, 25 July 2017 09:12 |
scott cowden
Messages: 170
Registered: February 2004
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Justin;
got a question for you….Is the fuel pump a stock Honda unit? the stock one is a rectangular box about one inch wide and 1 1/2 tall.
the fuel pumps are know weak points on these and it’s not uncommon for them to be swapped out with regular electric fuel pumps.
Trouble is, most electric fuel pumps provide too much pressure. the stock one is about 1.5-3 psi, and even most low-pressure electric are 4-6.
If the line pressure from the pump is high, then, it’s possible that when combined with some centrifugal force it may force fuel through the float and flood the engine.
I’ve had this happen on other engines and installed a pressure regulator in line to deal with the issue.
Just a thought.
As it happens only when you’re moving it more difficult to diagnose as you’re about 25 feet away when it happens, right?
maybe after it occurs you could remove a spark plug for inspection prior to restarting to see if the plug is dry or possibly fuel-fouled and this may give you a clue as to whether its ignition, fuel or electrical control circuitry causing this.
Good luck.
Scott
‘74 x-Glacier
Paterson Stage II torque monster
3:21 final drive
Honda EV6010 genset
and lotsa other crap
Orillia, ON
CANADA
Sent from Windows Mail
From: Justin Brady
Sent: Tuesday, July 25, 2017 9:23 AM
To: gmclist@list.gmcnet.org
It's only on right turns, which rules out the low fuel because the pickup is on the left.
It does completely die and have to be restarted.
I'm thinking it's got to be float height, fuel must dip below the main jet orifice when going around a right turn causing it to starve for fuel and
die.
--
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455
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| Re: [GMCnet] EV6010 Stalling [message #321055 is a reply to message #320997] |
Tue, 25 July 2017 09:53 |
James Hupy
Messages: 6806
Registered: May 2010
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Gee, I thought the Honda Generators were immune to all the ONAN failures.
Guess not. Let's see, water cooling, hoses, radiator, thermostat, water
pump, belt, overhead valves, looks like they have a bunch of their own
unique problems. Guess there is no perfect genset. I am really old school
in my thinking here. The less complex a machine is, the more trouble free
it is, and the easier it is to diagnose and service. But, the Honda's are
quiet it their own way, and smooth too. I still think that your problem
might be electrical. As Dick Paterson says, 75% of all carburetor problems
are ignition related. Or, was it the other way around?
Jim Hupy
Salem, Or
78 GMC ROYALE 403
Jim Hupy
On Jul 25, 2017 7:32 AM, "Justin Brady" wrote:
Scott that's also a good thought.
The fuel pump is OEM but I'll take a look at it anyway.
--
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455
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