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IrvinM
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About IrvinM
- Birthday April 1
Profile Information
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Gender
Male
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Location
Madera, CA
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Cars
1975 Datsun 620, 2000 Saturn LS1
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Interests
Engineering, Green Energy, Programming, Arduino, Vehicle Dynamics, Controls,
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Occupation
Auto Parts Sales Manager
IrvinM's Achievements
Newbie (1/14)
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But on another note, this forum is very helpful for me :)
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I have a feeling that you sir have been stalking me.
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Sounds like a plan! Thank you!
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Hey but how about that small nipple on the intake manifold in one of my pictures? I remember my old Hitachi was conected there. It had a hose connected from the base of the carburetor to the nipple of the intake. Do I just cancel it?
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Hi, I have been trying to hook up my Weber carburetor for the longest now and I can't seem to finish. I think I have solved most of my problems now, the only thing left I think is the vacuum system. I need to connect the valve looking thing on my distributor, and maybe a line on the carburetor and my charcoal canister. By the way, my truck is de-smoged, I have a Weber 32/36 with automatic choke, and a stock L20B engine. I am fairly new to carburetors so help is needed and appreciated. In the picture above you can see my distributor and I belive the "vacuum advanvce" (a valve looking thing). I need to connect this some where but I don't know exactly where. I've been reading about it and I will connect it to the only small pipe coming out of my Weber. The picture above shows the small and only pipe coming out of my Weber 32/36. It is bronze color and it sits under the automatic choke "solenoid". The one further away is a bolt with a flathead end at the top. The hole in between the two is just a plug. This picture above shows a small tube coming out of the intake manifold on the L20B engine, right next to the disconnected vacuum line. The vacuum line belongs to the timing advance from the distributor. My previous stock Hitachi DCH340 carburetor had one of the pipes coming out of the base connected to this small tube. Where can I connect this small nipple to? The picture above shows a small tube coming out of the exhaust manifold. What is it for? I don't recall anything being plugged into this before. The picture above shows my charcoal canister. it has four lines going to it. only one is currently connected; the second one from left to right, or from top to bottom. Hose number one and three are connected together but the final output line goes nowhere. hose number four goes no where as well. What to do? I am sorry for all of the questions but I have no experience with non fuel injected vehicles and/or vacuum systems. Thanks for reading!
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Found it! Found that red wire that outputs a 12V difference once the ignition key is turned! Now to the vacuum lines! :) Thanks everyone!
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Yeah but my carburetor is still under the Weber warranty. If I mess around with it I might void the warranty.
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The choke is on the carburetor, installed and everything but I don't know where to plug it to.
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I think I got it solved! now it is just the choke that is choking my truck. Maybe that is why they called it that? I have an electronic choke and I have no idea where it goes. My truck turns on and I've seen no dripping so far. I removed the nuts from the carburetor studs and took the locktite off. I put them back on (since I can't easily remove the studs, therefore the carburetor is stuck). I tightened them a little bit more than I did the first time and BAAAAAMMMMM!!!! The gaskets don't seem to leak no more. If necessary, I will remove the valve cover to gain easy access to the studs on the carb closer to the valve cover. For now, I turned it on for like 10 minutes and looks OK. Does anybody know where to connect the electronic choke to? Some crazy guy at the wrecking yard told me to connect it directly to the 12 Volt battery post. Isn't this going to draw power from the battery 24/7? Thanks everybody. I feel good being part of this very helpful community :-)
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How much torque can I put on the nut that goes on the studs? whats the maximum that it would take? and if I get to remove the carburetor, how much torque should I apply to the other bolts below it?
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The picture does show badly soaked gaskets but its not dripping fuel anywhere. I don't know if the fuel slowly creeped in there or if its possible to have fuel and oil mixed and leaking through the gaskets. The fuel stain has a very faint smell of fuel, and it hasn't gone away. It has been at least 4 hours and the wet stain is still there. The plate adapter gaskets have a stronger smell of fuel.
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I did hook up the carburetor to a fuel line and turned on the truck. I didn't have a throttle cable at the time so today I went to the junk yard and found one. I rigged it and installed it, but I was moving the throttle cable back and forth, so this poured a lot of fuel in there and it has been sitting there for a while (like 9 hours). So for a long time I did not turn on the truck. Next thing I notice is my gaskets soaked in fuel. So I was trying to remove the studs but they are seized because I put some blue locktite in there. My carburetor will not come out straight up because I'm assuming the studs are slightly angled, so they are locking in the carburetor. I can only remove the studs to remove the carburetor. Oh, and my fuel pump is mechanical.
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I have a 1975 Datsun 620 with the L20B engine and a Weber 32/36 electronic choke carburetor. I just finished installing my Weber carburetor and I noticed my gaskets were leaking fuel. I moved the throttle on the carburetor about 100 times while trying to adapt a throttle cable, and since everything was hooked up the vacuum inside of the carburetor was pulling fuel into the carburetor, into the intake manifold. I moved the throttle linkage to check how far would it go, why was it getting stuck, what everything else looked like when the throttle was wide open, etc. This pulled fuel in every time, so my intake got flooded, and my gaskets are leaking. The gaskets leaking are the bottom one where the intake and the exhaust touch, and the gaskets on the carburetor adapter plates. I also put some blue locktite on my carburetor studs to make sure they would not walk out with vibration and stuff... bad idea. They are STUCK! Now I can't tighten any bolts because my studs are stuck, and my carburetor won't slide off. The studs seem to be tilted slightly, so my carburetor won't slide off the four bottom studs. Now, would it be normal to have fuel leaking from the intake if it is flooded? Would it be normal to have fuel leaking from the carburetor plate gaskets if they were flooded? Note that I never turned on the truck when playing with the throttle. PLEASE HELP! Here are some pictures: Please look at the gasket right below the carburetor's printed information. This first gasket and the one below it are the ones leaking, not the third one. Here you can see a small portion of the gasket that is in between the intake and the exhaust. This one is leaking too. HELP PLEASE!!!
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I think I will be needing one of those, and by the say Sealik, do you have that fuel boiling problem with your carb? it looks like it is a Weber.
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By the way, is there anything else that I should know before installing this carb?