| Author |
Message |
S_M_I_D_D_Y
Joined: Tue Jul 12, 2011 7:07 am Posts: 20 Location: Newcastle
|
 Posted: Wed Jul 27, 2011 9:20 am |
|
|
I seem to have a problem when offroad. doesnt happen just cruising around town but when ive been on the beach and also in the bush, it starts to have trouble where it has a dead spot with small throttle openings. it will move with bearly any throttle, push the throttle slightly more and it wants to stall, push a bit further and it comes to life and drives fine. anybody know what the hell is going on here?
This sometimes starts within a few hundred meters of hitting the dirt, sometimes i can go half a hour or more before it comes up, and once i let the car sit for a while and then drive again it seems fine..
|
|
|
|
|
SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
|
Posted: Wed Jul 27, 2011 10:22 am |
|
|
Normal, keep your revs up, soft stuff, above 3,000rpm.
Its common as.
_________________
Bad decisions make good stories.
|
|
|
|
|
Santos
Joined: Tue Jun 09, 2009 11:30 pm Posts: 1009 Location: Sydney -ish
Vehicle: 92 Suzuki Sierra
|
Posted: Wed Jul 27, 2011 11:35 am |
|
|
What year is your sierra?
_________________
-Santos
|
|
|
|
|
JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
|
Posted: Wed Jul 27, 2011 11:55 am |
|
|
Wouldn't call having a flat spot at small throttle openings normal.
How many k's has the vehicle done and when was the last time the carb was overhauled or fuel pump changed?
_________________ Lil Foot!
http://tiny.cc/gtsw1
|
|
|
|
|
SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
|
Posted: Wed Jul 27, 2011 7:03 pm |
|
JrZook wrote: Wouldn't call having a flat spot at small throttle openings normal.
How many k's has the vehicle done and when was the last time the carb was overhauled or fuel pump changed? JR, I have had it with useless aisin carbs, as much as I try to get rid of the flat spot on my stocker, the more i find that it is somewhat normal, aisins have a tendency to get flat as they age, maybe a competent rebuilder, if there is such a thing for such an insanely complicated carby, could get rid of it, but for the average bloke, fuck it, live with it.
Personally I believe it to be the power valve.
I have tried and tried, always have done my own tuning, even rebuilding carbs, fixing leaky butterfly valve stems, but this one has me, too complicated by far.
If it gets me down, new carby, I can live with it.
For the price of a competent rebuilder, get a new, better carby, or like most say, go injection.
_________________
Bad decisions make good stories.
|
|
|
|
|
S_M_I_D_D_Y
Joined: Tue Jul 12, 2011 7:07 am Posts: 20 Location: Newcastle
|
Posted: Wed Jul 27, 2011 8:45 pm |
|
SuziBlu wrote: Normal, keep your revs up, soft stuff, above 3,000rpm.
Its common as. This deffinetly doesnt seem 'normal' if i keep it above 3k, how do i work around steep rocky stuff offroad where i wanna be crawling along? Quote: What year is your sierra?
1992 1.3 Hardtop Quote: How many k's has the vehicle done and when was the last time the carb was overhauled or fuel pump changed?
Its done 195k, and i have only owned it a month or so, i have no idea when these were last done. this problem had only happend the last 2 weekends...
|
|
|
|
|
JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
|
Posted: Thu Jul 28, 2011 12:42 am |
|
SuziBlu wrote: JrZook wrote: Wouldn't call having a flat spot at small throttle openings normal.
How many k's has the vehicle done and when was the last time the carb was overhauled or fuel pump changed? JR, I have had it with useless aisin carbs, as much as I try to get rid of the flat spot on my stocker, the more i find that it is somewhat normal, aisins have a tendency to get flat as they age, maybe a competent rebuilder, if there is such a thing for such an insanely complicated carby, could get rid of it, but for the average bloke, fuck it, live with it. Personally I believe it to be the power valve. I have tried and tried, always have done my own tuning, even rebuilding carbs, fixing leaky butterfly valve stems, but this one has me, too complicated by far. If it gets me down, new carby, I can live with it. For the price of a competent rebuilder, get a new, better carby, or like most say, go injection. Have you played with and modified the accelerator pump arm before? _________________ Lil Foot!
http://tiny.cc/gtsw1
|
|
|
|
|
stockman
az supporter
Joined: Thu Nov 05, 2009 10:30 pm Posts: 5319 Location: Canberra
Vehicle: 4wd
|
Posted: Thu Jul 28, 2011 1:18 am |
|
|
It's NOT normal. If the accelerator pump it set up and working properly you won't have a flat spot at all.
_________________
Watch out or you'll get sued.
|
|
|
|
|
Ben_Sierra
az supporter
Joined: Wed Sep 30, 2009 11:30 pm Posts: 4472 Location: Perth
|
Posted: Thu Jul 28, 2011 1:42 am |
|
|
x eleventy billion. Accelerator pump.
_________________ I want my old sig back 
|
|
|
|
|
S_M_I_D_D_Y
Joined: Tue Jul 12, 2011 7:07 am Posts: 20 Location: Newcastle
|
Posted: Thu Jul 28, 2011 4:51 am |
|
|
Anyone know why this only happens offroad? Im thinking after playing in water...
|
|
|
|
|
JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
|
Posted: Thu Jul 28, 2011 5:25 am |
|
S_M_I_D_D_Y wrote: Anyone know why this only happens offroad? Im thinking after playing in water...
What other symptoms are there? _________________ Lil Foot!
http://tiny.cc/gtsw1
|
|
|
|
|
S_M_I_D_D_Y
Joined: Tue Jul 12, 2011 7:07 am Posts: 20 Location: Newcastle
|
Posted: Thu Jul 28, 2011 8:34 am |
|
|
Light throttle dead spot, not flat, DEAD. Idles fine, but wants to die unless i really give it quite alot of throttle. Only seems to happen offroad, and now thinking it only happens when i hit some water
|
|
|
|
|
Ben_Sierra
az supporter
Joined: Wed Sep 30, 2009 11:30 pm Posts: 4472 Location: Perth
|
Posted: Thu Jul 28, 2011 9:34 am |
|
|
What sort of depth of water are we talking about here?
_________________ I want my old sig back
|
|
|
|
|
SierraDan
az supporter
Joined: Fri Feb 04, 2011 10:55 pm Posts: 9348 Location: Newcastle
Vehicle: G13BB Jimny
|
Posted: Thu Jul 28, 2011 9:59 am |
|
|
I saw him out and about the other weekend in Killingworth. Deepest i'd say around there if you're sensible is 31" deep?
_________________
mlm
|
|
|
|
|
S_M_I_D_D_Y
Joined: Tue Jul 12, 2011 7:07 am Posts: 20 Location: Newcastle
|
Posted: Thu Jul 28, 2011 10:45 am |
|
|
Nothing too deep at all, even just shallow puddles splashing up, now im not so sure the water is a problem, its just randomly coming and going away. Will speak to my mechanic tomorrow. See if he has any ideas
|
|
|
|
|
|
