possibly ruined a part on my carby

[yobbo88]

Today decided to get all handy and pulled off my carby to take it apart and give it a good clean and some new gaskets cause it was runnin pretty rough when it was cold and usin too much fuel etc... when i cleaned it i used a bucket of thinners and chucked each section into the bucket and shook it around. didnt think much and threw the main body in without disconnecting a part on it that i have a feeling is electrical... pic attached is not of my car but same deal i found it on this site (thankyou to whoever took the photo you have a very clean engine) and the part is circled. The choke has a wire running to it so its got to be electrical. Now my car doesnt start after its all back together and im pretty sure its because theres no fuel pumping. does this part have anything to do with the fuel pump?

[ported]

dunno what that thing is mate but thinners isnt really good to use for cleaning stuff. Any plastic bits and possibly rubber bits will now be fcked. Thiners dissolves plastic so im guessing you will need to pull the thing apart and put a carby kit for it

[Drewie]

Today decided to get all handy and pulled off my carby to take it apart and give it a good clean and some new gaskets cause it was runnin pretty rough when it was cold and usin too much fuel etc... when i cleaned it i used a bucket of thinners and chucked each section into the bucket and shook it around. didnt think much and threw the main body in without disconnecting a part on it that i have a feeling is electrical... pic attached is not of my car but same deal i found it on this site (thankyou to whoever took the photo you have a very clean engine) and the part is circled. The choke has a wire running to it so its got to be electrical. Now my car doesnt start after its all back together and im pretty sure its because theres no fuel pumping. does this part have anything to do with the fuel pump?

I think what you are showing in the pic is an electrically controlled 'Solenoid'
that closes the idling bypass system when the ignition is turned off, it's function is to prevent the motor from 'running on or dieseling' when hot.
So I guess if it is stuffed it may be in the off position and not letting fuel through.

Also if you have used thinners who knows what plastic or rubber you have disolved, might pay to pull it apart again and check what else is damaged. Definetly would not have used thinners.

[yobbo88]

yeah i replaced all non metal parts in it sorry i only said gaskets but i used a carby repair kit and went over the whole carby. i cant find what this part is anywhere on the net. thanks anyway man. i await for the god that can answer my question...

[craigvk]

Not too sure but it looks like where the PCV valve is. Don't kill me if I'm wrong! Unscrew it, clean it out. Spray a heap of WD 40 around it to remove moisture. Does fuel squirt from the jets inside the carby when cranking?

[yobbo88]

Drewie that sounds like a pretty good explanation. I hope thats it cause then its easy to fix. is there a way to see if fuel is making it to the carby? undo the metal fuel pipe just before it enters the carb and see if fuel flows when the engine is cranked?

[yobbo88]

no i cant hear or smell fuel when cranking or manual depression of the plunger. could hear it doing this before from random fiddling with it.

[yobbo88]

ok done a bit more sniffing around on the net and found that this fuel cut off solenoid should "click" when i turn the ignition to on. And it does. So i guess that rules that out. I swear no fuel is making it to the carby should i fill the float bowl with fuel and maybe it will drain down the line to the pump and create pressure or something? im pretty sure i can hear air pumping when i crank the engine but im in the car so its hard to tell.

[Drewie]

Drewie that sounds like a pretty good explanation. I hope thats it cause then its easy to fix. is there a way to see if fuel is making it to the carby? undo the metal fuel pipe just before it enters the carb and see if fuel flows when the engine is cranked?

If it is the item I think, there should be a small electrical fitting on the end of it, if you remove the unit from the carby you can test if it is working by applying current from the positive terminal of the battery to the connection
on the solenoid then earth the body of the solenoid, if it is working the plunger of the solenoid should move back into the body of the unit.
If it doesn't it is probably stuffed and in the closed position, whether you can some how rig it up to stay open and see if it starts. Not a 100% if this would stop it starting but it might as it is designed to stop running on by closing the bypass system so it may stop it starting.....worth a try. Good Luck.

[Not_An_Abba_Fan]

Yep, what drewie said, it's the fuel cut off solenoid. Take it out, dry it completely and give it a tap on a bit of wood. Use a bit of machine oil if you have it, if not, a touch of transmission fluid on the solenoid piston and move it in and out. There is nothing really electrical in there, its just an electro magnet. I would say the thinners has dried and left a residue that is jamming it.

[yobbo88]

Ive been studying a diagram of my carby in a disassembled view and noticed there is a spring above the ball bearing for the accelerator outlet bore. i dont recall ever seeing a spring there when it was apart... please dont tell me this is neccesary! i dont know how i could have lost it so maybe it was never there?

[yobbo88]

still reading and seen i could have blocked a fuel jet passage with some junk? how likely is this?

[yobbo88]

screw this crap... changed fuel pump just now. didnt fix it. i swear no fuel is making it to the carby. i have no idea. im so annoyed

[Not_An_Abba_Fan]

Tip some fuel down the throat of the carby and crank it. It should go, do this a couple of times and the pump should pull enough fuel up to the carby. Take the fuel line off the carby and put it back on when fuel starts to come out of it. If no fuel comes out, then there is something wrong with the pump, the pick up in the tank or a blocked line. Or you could have no fuel in the tank.

[14secvp]

definitly is the fuel cutoff solinoid in that picture.If its buggered it will not idle or run with low throttle openings but will if you keep the gas open or keep pumping the gas pedal.as not_an_abba_fan said tip some gas down the carb and see if it goes and it should prime the carby.drop a drain plug out the carb and see if gas comes out the bowl.

[yobbo88]

ive filled the carby float bowl with fuel a few times and it runs sweet for about 15 seconds then shuts off. ive got my friend over with his car and we hooked his battery up to mine while his engine was running so i could crank for as long as i wanted. still no start. It could possibly be the cut off solenoid but i swear i hear it click when i turn the ignition to on. when i rebuilt what could i have wrecked? the only thing i didnt do but would have like to is blow compressed air though the jets etc. but i dont think this could be a problem as it runs when fuel is poured into the bowl. there is a full tank of fuel in it. it ran fine before i took the carby off but now fuel doesnt make it to the carby or very little as sometimes it will fire a bit when cranking. ive replaced the fuel pump today but no success. Ive also blown down the fuel line to the tank and can hear bubbles. thats all i can think of to tell yas i hope some of it helps

[yobbo88]

with the fuel line disconnected at the carby fuel should pour out when the engine is cranked correct? It doesnt do that. Sorry for the scattered info

[yobbo88]

ok newest revelation. went down decided to crank it with the fuel line off again and fuel came out!!! dunno why but it does now. still doesnt start though. Pulled the carby apart and found that when i press down the plunger there is no pressure. i remember there being quite a bit. Where the pressure is going is through the retainer for the accelerator outlet bore there is a little hole at the side. Should this let air or fuel or anything through? i think i made the hole when i removed it during the rebuild. its circled in the pic for helpingnes

[Not_An_Abba_Fan]

If the fuel isn't getting into the carby make sure the needle and seat are not sticking. Undo it and pour a bit of fuel into it to get it wet and lube it up, then put it back and try again.

[yobbo88]

ok Who can say idiot? who can also say "next time you put the carby back together make sure you hook the needle onto the float so its lifted out of its seat to allow fuel to go through" or something along those lines. This has however been a massive learning curb on carbys and a bunch of other things that you have all helped me out with. You all rule. I love this site and its members. Thats why its my homepage... i look forward to learning more in other threads !!