Outer Limits 4x4 Board

Hello all,
long time listener, first time caller. I have searched all the issues on carbies, but still need some help. Driving one day, the car just stopped idleing. i have checked all hoses, choke works, and i cant see or hear any air leaks. I have pulled it apart and cleaned it rigourously, but it just wont run. I have also checked the idle solenoid, and it activates with power.I guess i am sick of coasting into the lights in neutral, left foot braking, trying to keep the revs up! is there an obvious fix, or is it time just to bite the bullet and stick on the weber i have as a doorstop on instead.
Thanks in advance.

Hey zook92,

Get a 1.6 carbie put in.... less hassle than a webber (although they sound damn cool) a Vitara carb around '91-96 should cost around $120-$200 depending on where you get it (wrecker prices) and if you're mechanically inclined you can fit it yourself!

Not a fuel pump problem or sumtin like that?
Have you got a fuel filter between the carb and fuel pump?

I have a filter at the back as all do, and another before the fuel pump, but not one between the pump and carby. i thought it could be a fuel filter issue, but i changed them, and it made no difference.

This happend to mine just bring the revs up really high than put your hand over the top of the carbie. Your hand will probably get coverd in crap(Mine did) but it might take a couple of gos!

try reversing no 2 and 3 leads to get it to back fire

give it a few revs

then return them to normal
see if it will idle now
should then be able to tell if its somthing stuck in the carby


mine used to do the exact same thing no matter how much carby cleaner or how much i tried to clean it out just couldnt get it all out

I heard that before, so i gave it a go. I received a hand covered in crap and fuel, but alas, that to did not work! And as for back firing it, that too was tryed but to no avail.

Cheap way out maybe chuck a toyota carb on there. 3k/4k carb. otherwise maybe time for rebuild.

CHeck the jets out. see if u can clean them out.

Nic

i am having the excact same drama , changed leads etc etc no go , found fuel cutoff solenoid playing up swapped and was ok for 1 day but i still believe it has something to do with the fuel cutoff solenoid as it starts and runs fine its only after she gets warm , im going to check today on the voltage getting to the solenoid before and after it gets warm to see if the heat is producing enough resistance to cut the solenoid out , as disconnecting the solenoid does the excact same thing as what its doing , it will run with it disconnected with the revs above idle but bring it back down and she'll stop

i'll get back tonight with what i find


jai

zookjedi wrote:i am having the excact same drama , changed leads etc etc no go , found fuel cutoff solenoid playing up swapped and was ok for 1 day but i still believe it has something to do with the fuel cutoff solenoid as it starts and runs fine its only after she gets warm , im going to check today on the voltage getting to the solenoid before and after it gets warm to see if the heat is producing enough resistance to cut the solenoid out , as disconnecting the solenoid does the excact same thing as what its doing , it will run with it disconnected with the revs above idle but bring it back down and she'll stop

i'll get back tonight with what i find


jai

Just try hardwiring the solenoid lead to the positive post of the batt, then go for a drive and see what happens when it gets warm.

As suzuki boy (my son) says, we were driving home from Bunyip a while ago, and all of a sudden was running really rough, and wouldn't idle, needed a million revs to start off. Stopped in Healesville (heading towards Melton the back way) and checked fuel filters, all ok. Stopped near Diamond Creek and checked plugs and leads - all ok (but did see a Dodge Viper fly past whjile we were there!). Eventually almost home, and 5 minutes away pulled up by a booze bus!! You try and not draw attention to yourself when you need a million revs to get moving form a booze bus!! (eyes straight ahead, don't make eye contact!). Got home, asked a neighbour who is a mechanic, and he took the top off the carb, put the hand across when high revving - did it a couple of times and no worries!.

Have done ourselves once or twice since, but not for a while.

Hurmmm still sound like theres something floating in the carb and blocking the idle jet. When you pulled it apart, did u completely take everything apart? Did you put a new kit thru it when you put it bavk together? Cause it happened to me, ive pulled it apart cleaned it put back together only to run crap again. The prob usually lies in the emulsion tube and its gasket, the gasket sometimes when put back together blocks a few of the pin holes in the e-tube and also the gasket falls apart and the lil black fibers clog the etube. Another check, is to make sure that the transision port(flat head screw with hole in center that holds the carb together from the bottom) is not loose.

Cheers Dan (or put the weber on:))

I must confess that when i cleaned it, i just used the old top gasket. i know i have the weber to throw on, but for the price of a new gasket, i guess i can pull it apart and replace it, and see if that fixes( or reduces) the problem. A couple of hours beforehand, the engine got wet, not the electrics, but i guess some sudden cooling may have shifted some crap out where it should have been to where i don't want it.

yeah no problems in the wiring 13.4 volts whilst running .

if you have an idle jet problem i would have thought upon starting when cold it would still be bad , not just when warmed up , i know they have the auto choke that gives it more revs when warming up and all but it would still use the idle jet would it not ?

Bugger the carby off, make custom manifolds and install sequential injection. I just started.

someone could make alot of money buy designing a simple, bolt-on efi kit for sierras. Id buy one.

would'nt we all love that!

try taking the filter adaptor of the carbie then change leads 1 and 3 around on the motor then try to start it until it pops out the carbie. this happned to me. it wasnt running of the idle jet and you need to rev it so it comes out the other acellerator jet to get it running. changing 1 and 3 around should work but you change em back after it pops, may take a few tries until it pops but.

Come this weekend, i will change the gasket, try all the things you guys ( and gals) have said and see if it works. If not, i will pull it off and throw it at the first poor sod that walks by!

ZOOK92 wrote:Come this weekend, i will change the gasket, try all the things you guys ( and gals) have said and see if it works. If not, i will pull it off and throw it at the first poor sod that walks by!

where do you live so I don't walk by.

HotAe92 wrote:someone could make alot of money buy designing a simple, bolt-on efi kit for sierras. Id buy one.

The single point injection of the 1.6 vitara can be swapped on pretty easy. THe manifold and stuff should be almost bolt on, just need the loom stripped down of un-needed wires and set-up. Pretty sure Tim (redzook) has this setup on his ute? I looked into it a bit, but lack of time and $$$ has made me leave it for a while. Every now and then a injection setup pops up in for sale section too. As for the carby, it sounds like the idle jet is blocking up, which is pretty comon. THe idle jet in the standard carby is really small, and so is pretty suseptible to blockage. Also, try runniny your secondary fuel filter between the pump and the carby, as when the diaphram in the pump gets old little peices of it flake off and into the fuel system. I used to have this problem, but a new pump and a filter between pump and carby sorted it out.
Layto....

Grimbo, don't fuss! I can throw, but not 1000 km's! I know it sound stupid, but which is the idle jet? i may not have given it a good enough clean.

it part of the aux venturi(the part from the top that u see go across the smaller primary throat). This is idle, emulsion, and air all in one. Compress air it to make sure there nothing small blocking it

I put in the new rebuild kit and cleaned all the jets and lo and behold it ran like a dream. I mean ran! It now runs really rich, adjusting the mixture screw in only make it rev a hell of a lot higher. It is nigh on impossible to start, but if it does, it only takes about 1min, and it runs well. It does bog down a bit too. I though the linkages may be stuck, but it appers that this is not so. The idle screw does not even touch the adjuster, so i can not lower it that way! i know it is a simple fix, but what is it!

ZOOK92 wrote:i know it is a simple fix, but what is it!

Pull all of the auto choke parts off.

Do you mean just take of the butterfly, or take out the butterfly and reroute the water hoses so they bypass the carbie? Or take of the choke setup all together? Can this even be done?

HotAe92 wrote:someone could make alot of money buy designing a simple, bolt-on efi kit for sierras. Id buy one.

http://www.zuksoffroad.com/products/MY-FI.htm

just readjust your choke via the screw near the cable cam (do it with engine of as you have to rotate cam to adjust screw) and make sure your cable when at operating temp has a small amount of slack .

ZOOK92 wrote:Do you mean just take of the butterfly, or take out the butterfly and reroute the water hoses so they bypass the carbie? Or take of the choke setup all together? Can this even be done?

Where bouts are you situated mate??? Cause up north where is stays pretty warm there no need for that choke. I found it just very touchey (prob due to age) so i pulled out the butterfly and all the associated linkages and tubes to it. Runs like a dream and no high idle probs at all.

Cheers Dan

So come on how hard is it to fit a vitara carb to a standard 1.3 manifiold and what benifits do you get