[bumstein]

Hi folks

Rebuilding my stock carb and the rebuild kit has stuff all info with it. Worst diagram ever!!

The inevitable happened of course, there's a few wee bits that sproinged out and I didn't see where they came from.. The FSM has a fairly good diagram of the anatomy but wondered who had a good, well detailed diagram or some good tips??

Thanks all

[Marko_SJ]

Well, when I did it I had springs and check balls launch out too.

I might go and get the manual to jog my memory if you want? Its the spring and ball check for the accelerator pump you are asking about, right?

Turns out I did the carby kit for nothing, my throttle pivot was worn.

[bumstein]

Thanks mate!! There are a few parts that took me by surprise!!

Springs and a wee ball.. There's a tiny rubber O ring that appeared on my workbench.. And I'm not sure what else I've cocked up until I'm ready to plug it all back together

[bumstein]

Oh, and I should stipulate that it's a 1.3 Sierra '93 with stock Aisin carb

[Marko_SJ]

No probs. I couldnt find the manual so i opened up my parts carby. See the little brass nozzle that shoots fuel into the throat? It is connected to a hole in the body of the carb. It goes checkball, spring and then metal bit. The o ring goes around the metal part that sits on the spring.

[Red89]

Not sure if this is from the FSM or not.

[bumstein]

Ah thanks Amateur!!
Ball-spring-O ring clad metal dooberlacky!! That's a big part of my mystery solved!!

[bumstein]

Red89 wrote:

Not sure if this is from the FSM or not.

Thanks Red!! That's not the FSM one, might help a bunch!!

[bumstein]

Ok.. Lets see if any of you carby boffins out there can confirm or slander my work..

Firstly, it goes

Filter basket (not pictured) washer, needle seat then needle. Held in by the float assy. Right??

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Then the power valve piston and spring held in by a wee screw and clip.

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How am I going so far??

[Marko_SJ]

I'm no carb boffin - thats what I'd call JrZook - but it looks okay to me.

The first couple of pics are logical, ie: copper seal, seat and needle, works like a toilet .

And the next two seem fine.

The biggest problem AFAIK is having a worn throttle pivot causing vac leaks, and the biggest PITA is setting float height. Thats all there is to it but if those two factors aren't satisfied it will never run right (ask how I know )

[bumstein]

Ha!! These sure can be dramatic issues!! And carby's are so far beyond my diagnostic ability!! I've got a running carby coming as a spare, so if it doesn't run right I can swap them over and still tonk around while I pull my hair out trying to figure the probs with this one..

Next trick, confidently assemble the pump plunger assy!!! Eeeek

[bumstein]

Ok next stage, I've just spotted on the diagram is the pump discharge assy.. It goes Ball- pump discharge check (large), then spring, then weight.

All in the wee hole at the end of the screw driver... Only I don't seem to have a freakin spring for there!!!

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[Marko_SJ]

bumstein wrote:

Bumstein is missing a spring

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We can't help you find a spring Thats the one we were looking at, at the start of the thread.

The throttle linkage and all its hangers on are more complicated than the carb itself! It is diabolical

Hope you find it.

[bumstein]

Yeah, I had that assy confused with the pump plunger assy.. I was taking apart the pump plunger when the pump discharge assy sproinged out..

I thought it came out of the same hole but I've found that it doesn't.. I'm getting to the bottom of it gradually but yeah, dreading the linkages bit

Anybody out there have a spring you want to part with?? Or a roached out carby you want to get out of your shed??

[coily96]

I found a range of springs usefull for carbys at mitre 10. Also the left over oring could be for the end of the idle solenoid.

[Marko_SJ]

coily96 wrote:

I found a range of springs usefull for carbys at mitre 10. Also the left over oring could be for the end of the idle solenoid.

I found box of springs at a place called darwin bolt supplies, but it isn't much help to him. Possibly try any hardware shop.

[bumstein]

I could definitely search for a spring but I don't know what size/length/strength to look for.. Trying to find a clapped out carby that I can strip for one.. Anyone have a dead one laying around??

And yep!! The spare o-ring is from the idle solenoid!! Thanks coily, you picked it like a dirt nose

[coily96]

Not that you need the solenoid anyway, mines fine without it

[bumstein]

Carby rebuild almost done!! Been away for a while so it's been a bit slow to finish off..

Anyhoo!!! Two parts I haven't this far been able to place

A spring and a bracket..

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Who wants to play a game of "pin the part on the carby"??

[JrZook]

Top bracket I believe holds/supports the fuel inlet tube on the top of the carb. The spring I think is for the linkage setup on the secondary. Post up some pics of your carb and I may be able to point it out

[bumstein]

Thanks JrZook!!

So you think the bracket may fit in here?

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It looks a little off centre to hold the fuel line but plausible..

As for the spring, I recall it fitting somewhere in this conglomeration of confusing shit

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[JrZook]

I'm pretty sure about the first position. Don't quote me on the second, but I believe the spring goes there to hold the secondary arm up or something. You will have to test that by opening the throttle to WOT then compress the vac pot to open the secondary. Once you let go nothing should bind

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[bumstein]

Like that??

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What's a WOT??

Do I need to do that with it installed in the car and running or is a dry bench test ok?

[bumstein]

Oh!! WOT = wide open throttle right??

I'm a numpty lol

[bumstein]

Ok.. Spring there gets in the way of the secondary from closing..

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[bumstein]

Right.. Slight variation, the top of the spring is moved to the other hooklike bit.. Make sense??

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[JrZook]

Is there a hook for the spring between the 2 water pipes so the spring is vertical? If so try that. It's been ages since I've played with the stock aisin carb

[bumstein]

Yep!! There sure is far out I hope this works.. Haha

Thanks heaps for your help JrZook!! Champion bloke!!