Holley 5212

[Buzo]

Bye, bye OBDZ.

haha, its funny though, this morning when adjusting the new carb I was thinking "I'd wish this carb had a window to see the fuel level".
All the features of the stock carb are great. But the parts are physically old so, even though I understood how they interact, I couldn't make it work properly. But I still monitor speed, rpms, temp and open loop O2.

[Buzo]

you can maybe get the base of an air cleaner off a dodge K car, omni, shoot a bunch of American cars in the 80 used some form of those carbs, or something else that used that carb and go from there.
Also I ordered from a toyota off road outfitters website to get a real weber cleaner brand new for less than 20 dollars shipped.

too late...



The sunlight angle screwed up all my pics, this is the only one with correct focus

[Buzo]

Question:

The last time I had a carbed vehicle was a V8 Pickup and I could see the fuel being sprayed into the throat when accelerating (w/engine off).

I can't see, or smell the fuel spray in this carb when actuating the throttle to WOT. Is that notmal? I don't think but maybe due to the size of the engine we don't need to see the actual fuel spraying.

I noticed this carb had only one ball , when the carburetor factory site shows two (# 46). I checked Mr Keihin, but it doesn't have any balls.

And finally just wanted to share one of the many things that can go wrong in a swap, a broken screw that didn't want to left the car after 23 years of being together.



Ended up drilling a hole and full of metal burrs all the way in the intake maniful area.
To close the water port, I made like 4 or 5 new threads in the port, cut the tip of a screw off and also made the slot for the screwdriver with my dremel.

[Buzo]

Is it Possible that my problem with the engine stalling in right turns is because the fuel is going to the vapor outlet piece of hose?

It makes sense. The solenoid valve is normally open due to the action of the spring (#38, 39 and 40), so when turning right the fuel goes inside the hose. The one plugged with a screw in this picture.

So let's test it. First I need to make sure it seals correctly and then connect the solenoid to the same wire than the electrical choke.

Wow, I feel excited. Hope it works!

[Dr_Snooz]

Question:

The last time I had a carbed vehicle was a V8 Pickup and I could see the fuel being sprayed into the throat when accelerating (w/engine off).

I can't see, or smell the fuel spray in this carb when actuating the throttle to WOT. Is that notmal? I don't think but maybe due to the size of the engine we don't need to see the actual fuel spraying.

You're referring to the accelerator pump, I think. If it's malfunctioning, the throttle will cut out when you hit the gas. When you hit it, it will immediately bog down before catching and going faster. If that's not happening, then don't worry about it.

[Buzo]

You're referring to the accelerator pump, I think. If it's malfunctioning, the throttle will cut out when you hit the gas. When you hit it, it will immediately bog down before catching and going faster. If that's not happening, then don't worry about it.

Yes, I was referring to the accelerator pump. And the car is working OK when I hit the gas, so I will follow your advise. Will not worry about. Thanks!

[Buzo]

After being unable to fix the slosh problem in this holley carb, I put the Keihin back in my car, but not before a full overhaul.

Also a 19 MPG was not what I expected from this carb. I think I spoke out too early when I said no change in the fuel economy.

So now I made the stage 4 vacuum removal which is leaving only the power valve and advance. Well, the vibration has been reduced a lot, I can take my hands out of the steering wheel and it will not sound at all. Also, the knock noise is gone and the engine is at nice 850 RPMs.

As summary, if you don't have the 350 USD to buy a new weber, I recommend a Keihin overhaul instead of trying with a Holley.

[Dr_Snooz]

Hello OBDZ! LOL

[2oodoor]

I would have lowered the float, also eliminate the power valve.
Adjust the timing to suit the carb.

[Buzo]

Hello OBDZ! LOL

hahaha LOL!

[Buzo]

I would have lowered the float, also eliminate the power valve.
Adjust the timing to suit the carb.

Played a lot with timing and float, never thought about the power valve.
I spent two weeks thinking if next turn is a right or left. And forget about parking in reverse or suddenly stop. Car felt Stronger, yes, but two issues that didn't worth it. I mean, maybe it's just the carb was too old.