9d7gst

When I rebuilt my carb, I noticed a couple of venturies loose. I tried to tighten the air bleed, but those fuggers are stuck. I actually chipped / mangled the head. I cant tighten or loosen the bleeds. The motor runs through the RPM's nicely. Im having trouble with the Idle and mixture screws also. It idles like crap under 1000 and I have to have it rich to run well there. Burns my eyes at stop lights. No vaccume leaks and timing is right. Is this the cause?

Also, I took out the the little air bleeds beside them. I dont know if I put them where they are supposed to go. How will it run if I get these mixed up?

Another problem Im having right now is hot starts. I have to pump the crap out of the pedal then get everyone high on fuel fumes. Does this sound like I need to rebuild it again, and right?

Rx7carl

Sounds like you do need to pull it apart and make sure it goes back together right. Those bleeds should unscrew fairly easy. The booster venturis are just pressed in loosely and its not un common for them to become loose. On the other bleeds, the ones with the tubes should only fit one way cause of the holes in the carb body. For the outer bleeds. The larger (180 IIRC) go to the primary, and the small ones (silver in color) go near the secondary.

rxtasy3

iTrader: (2)

ur hot starts may possibly be a sign of low compressioin. i had a 12a once that was like that. would start fine if spun with 2 batterys @ 24v. unfortunatly the starter wont last long like that.

9d7gst

Thank you guys. Thats exactly what I needed to know Carl.

rxtasy3 - I thought the same thing. I did a compression check yesterday with a regular gauge. I took out the needle so I could see each rotor bump. I got 75 or over on both rotors 3 times each. It has good power also.

rxtasy3

iTrader: (2)

was that cold compression or did u check it after the engine had been run and up to temp? i think 75 is alittle on the low end, i never checked that one i had.

Sterling

I think you have a small vacuum leak.
If you can get the short, nickle plated secondary idle airbleeds (.60 mm) from another Nikki and swap them with your primary ones (1.50-1.80 mm), and get the idle feeling nice, thenm you know for certain you have a leak.

9d7gst

No chance of getting another carb.....not for the price I want to pay. Ill keep that in mind tho.

I did pull the top of the carb off to tighten the emu emuls emulsifier...... the thing that holds down the secondary venturis. The top carb gasket was on upside down. So, I flipped it and tightened everything up. I can get a little more leaner now. I dont know if this will fix the hard start. Will find out in a few.

Another problem I have is a bump in the idle. It idles pretty good now, but allways had a putt or bump unrythimlically. < Is that a word?

This car just became my daily driver. Thats why Im having all this trouble. Before it was just a toy to drive while Im at work. My Eclipse decided to snap a valve and eat itslf inside out.

Rx7carl

Probably an ignition miss.

9d7gst

Well, it drives better now. But still hard to start 10 -15 min after a drive. It starts fine right after or when cold. I have another cap and wires that made no difference.

Get this, I ran it around the block with the air filter and housing off. I came back, poped the hood and looked down the carb. I found fuel flowing from the secondary venturies. It stopped after 10 sec. Needless to say it was flooded. What would cause this? Is the gas tank suposed to be under pressure? Mine allways is.

Tomorrow, I'm gonna try new 8's that I found laying around the shop.

Rx7carl

Is your fuel vent solenoid working?

Sterling

There are three lines to the tank;
Feed line to the carb,
Return line from the carb,
Tank breaher line to the charcoal canister.
Remove the line to the canister, and see if your problem disappears.

9d7gst

DOh!!! Carb is in the middle of a rebuild. One primary venturi was broke off into the carb body. I got it out with an easy out. Using slow dry JB weld to hold it togeather.. I dont know how long it will hold up to the fuel.

Also replacing the intake manifold gasket. It was waaay past time. it was felt, the fabric. I also blocked the coolant passages with 20mm freeze plugs and a little JB.

Crossing my fingers.

Sterling

Just choke it up and go buy a junkyard Nikki!

calvinpaul

iTrader: (2)

Better yet buy the junkyard nikki and send it to Sterling or Carl...Haven't dealt with them personally but have heard great things. Carl, as soon as I get enough money to rebuild my engine, my carb is going to you!!!

9d7gst

I have a new car. After getting everything back togeather, it ran like poo. BIG vaccume leak from the check valve block off plate. I had used rtv. Didnt work. I made 2 gaskets that sealed it completely. Started right up and with some adjustments, idles without a miss. I just drove it home for lunch and will find out how it starts when I go back.

Thanks alot yall.