Please Help.....Calling all carby experts!!!!!!!!

[maverick1]

hey everyone, just wanted to ask about carby's. I have 88 4.2 ltr. It has a venturi carby. I have had the carby rebuilt and spent $$$ on doing this. It is still having flooding problems and I have been told it has an airlock and I need an emulsion block. I haven't been able to find anything and don't really want to spend more, but need it to run more effciently. I was talking to someone who owned one and said they did a conversion to a webber. He told me that it wasn't hard at all and brought the conversion kit from repco, and then made his own air filter using the nissan one as a template. Is there anyone else out there at all that knows anything about either of these issues.... Please help!

[the ferret]

sounds to me that the float level is not set or the needle and seat are faulty! OR the float has a hole in it!!

[YNOT]

I'm no carby expert, I've never even owned a car with a carby, but here is some information I found on another forum.

1st you need a redline adapter # 10-220 it fits both nissan and toyota

2nd get some 1.25 metric tread x 8mm rod or sacrificial bolts you'll need one stud or rod 80mm, 2x bolts and you might have to grind or cut the heads so they sit inside the adapter plate, and 1x30mm extension to be welded to the bent stud get some new nuts and washers too.

3rd get an elongated nut about 10-15mm long that fits to the throttle shaft you'll need a piece of rod or stud to extend the shaft(put a tack weld to the nut and extension to stop it ever coming loose) to put the nissan throttle actuator (the 1/2 round for the cable) grind the extension so the actuator fits and is in position and fixed.

4th do a test fitting off the car, if it's all good, fit the bent stud first then fit the plate with bolts in pointing upwards and then put in the straight stud/rod tighten the allan bolts up and fit the carb.

5th remove the original throttle cable mount and move it up to the top hole on the manifold (it needs a few minor bends) and fit the cable hook up the auto choke, cut off solenoid and fuel line.

Bobs your uncle it should run it'll need some tuning but good to go.

Tony

[AB]

x2 on also checking the float, incorrect float level or jammed float will cause flooding....I would be checking that first followed by the needle bent, etc

[maverick1]

Hey guys,
thanks so much for the helpful info. So YNOT, by the pics and the instructions, I gather you think the webber is a better option than the emulsion block? All the float, the needle and seat and everything in the carby are apparently rebuilt.

[the ferret]

Take it back to them mate, show them how good their handywork is, let them sort it out, after all, that's what you paid them for isn't it?

[YNOT]

Hey guys,
thanks so much for the helpful info. So YNOT, by the pics and the instructions, I gather you think the webber is a better option than the emulsion block? All the float, the needle and seat and everything in the carby are apparently rebuilt.

That's not my car in the photo's, I just knew where to find the information you were asking for. I prefer EFI on petrol engines.
If you can get the original carby working properly/as it should be, there should be no need to change it for a webber.

Tony

[maverick1]

the ferret: It has been back to them already but they are the ones who have said that it should run fine and should have the emulsion block under it.

YNOT: I want to change it to EFI, but not sure where to start. I have been reading about pertronix kit (lobe sensor model) and flame thrower coil. Can ask your opinion on these? Also do you have any suggestions on what I can do with the carby?

[YNOT]

YNOT: I want to change it to EFI, but not sure where to start. I have been reading about pertronix kit (lobe sensor model) and flame thrower coil. Can ask your opinion on these? Also do you have any suggestions on what I can do with the carby?

Do you mean EFI (Electronic Fuel Injection) or EI (Electronic Ignition)?
I have no experience converting from points to electronic but others on here (Paul - Patch697) should be able to help.
My suggestion for the carby - if you can afford it, throw it away! Both of my GQ's have been EFI because I don't like carby's.
If you want to go down this path you will need a complete EFI set up (complete inlet manifold with injectors , throttle body etc, distributor-EFI Patrols had EI, wiring loom and computer, high pressure fuel pump and filter) off a wreck. It would be a big job.

Tony

[the ferret]

Put an emulsion block or alloy block under it and THEN take it back to them, they are sposed to be the experts?