20 R Carb sourcing advice

[tomcolins]

So I have been mulling over carburetor issues for a while. My old Aisin carb is sad and tired and needs an overhaul. I can't afford to keep the truck decomissioned while that happens so I've been looking at a replacement. I have been thinking about a Webber conversion, but I am kinda down on it. It looks a little cheap-o and I have been getting inconsistent reviews on Webber swaps. Not to mention questions about how to deal with all the vacuum shyte...

Anyway, here's the real question unless someone feels very strongly about the Webber... I can get a re-built Aisin carb locally from either NAPA or Autozone. The NAPA variety is rebuilt by Holley, the Autozone by National Carburetor. I have never heard of the latter. The NAPA guys speak well of the Holley product but no one in either case knows where the carbs are rebuilt. I doubt it's Pontiac, Michigan. I don't know if Pakistan or China is worse than Mexico or South America. Maybe someone has had experience with either of these?

The NAPA one costs $760 and the Autozone one costs $495 or something. A pretty big difference. I am tempted to believe that the extra cost of the Holley rebuild is because it's a better product. But I've been duped by this kind of logic in the past.

Any thoughts? I would like to get jumping on this. The truck is running worse and worse...

 

[2ndGenToyotaFan]

Wow..... for $700 you could buy another car to drive while you rebuilt the carb yourself... If you're into that... I got nothing for you... I sold my carm and bought some EFI!

 

[tomcolins]

I seriously thought about it, but it looks like a huge pain in the arse. Some of the screws are already stripped and I feel a little daunted by the thing. It looks like a frankenstein compared to the only other carbs I have rebuilt (old Yamaha, Vespa and 50's era Carters)...

And an Englishman told me "Carburetor" was a French word meaning "leave it alone."

I dunno.

Webber 32/36: $499
National Carburetor Aisin rebuild: $499
Holley Aisin rebuild: $740
Toyota Dealer: no way


Though about finding a parts truck or salvaging an old carb to rebuild/have rebuilt instead but didn't get too far... No one anywhere near me wants to work on a Japanese carb.

Ugh.

 

[WarDamnEagle]

The guys at LC Engineering have always impressed me. They don't seem to have a problem with Weber:

http://www.toyotacatalog.net/M1WebG...UniqueID=58EDB0B1-9686-40AA-B5CB-0A36F76B708E

 

[Hilux]

LC carries them.. They're called 20R to 22R carb adapters...


http://www.toyotacatalog.net/M1WebG...UniqueID=1B63670F-6C6F-4901-9630-3DC2390B8B42


The 20R carb is no good.

 

[tomcolins]

Do you think it's better to replace the 20r carb w a 22r carb? interesting...
Would you do that over a Webber conversion?

 

[WarDamnEagle]

Do you think it's better to replace the 20r carb w a 22r carb? interesting...
Would you do that over a Webber conversion?

The link that I put in my last post was for a 22r Weber carb that LC Engineering recommends for the 20r engine. I don't know if it needs an adapter or not. I would phone them to make sure about the need for an adapter and/or anything else and then I would go with it (especially vs the options that you listed earlier).

 

[tomcolins]

I saw that Webber 40mm link. That's helpful, though it says there are linkage parts needed so I'll probably call them and see what they recommend and get a quote for the whole pile... Also curious about performance vs economy issues. I'll chat them up about that too...

I think our man in Tennessee is suggesting swapping out the 20r carb for a 22r carb and using LC Engineering's adaptor to fit it up to my manifold. I will look into that possibility.

I really just want a good running carburetor that's easy to transplant. Economy over performance, but of course extra performance could be a deciding factor.

 

[tomcolins]

Here are some links...

For 20R

http://www.napaonline.com/Search/Detail.aspx?A=HOL649116_0180197235&An=599001+101980+50070+2070026

http://www.autozone.com/autozone/pa...-8vd1l?itemIdentifier=4013&_requestid=1722711

http://www.autozone.com/autozone/pa...vd1l?counter=2&itemIdentifier=53849_126688_0_

http://www.toyotacatalog.net/M1WebGear/ProductSearch.aspx?Class=134


Or for 22R

http://www.napaonline.com/Search/Detail.aspx?A=HOL649232_0180197242&An=599001+101985+50070+2070026

http://www.autozone.com/autozone/pa...lZ8vd1l?counter=0&itemIdentifier=4022_0_3177_


Hilux, you feel that strongly about the quality of the 22R Carb over the 20R? I see it has an electric choke. Is that hard to hook up? Is there a thermostatic switch or something that triggers it? The 20R is a coolant activated choke... Man. I'd be happy with a knob in the dash...

Thoughts?

 

[Hilux]

I researched to 20R carb when I did my 20/22R Hybrid and came up with a few things...

You don't have the bore I do, so maybe you won't be effected as much...

Anyway, it's all info I've placed in the basement... There was something about the flow, or a bottleneck at the base of the carb, or small ventury's, or it's hard to rebuild or even find... Or some junk like that.


But again, your engine draws in less air than mine...

Use it if you want. I just feel there's less struggle going to the 22R carb.


http://www.bluebassdesign.com/boonin/carb_faq/

 

[Chang-kuao-lo]

try california mini truck. they'll probably have a good idea of what's going to work best for your application, and if they don't have a reman sitting on the shelf, they will have a good working used unit and rebuild kit to keep you on the road while you rebuild the old one. http://www.calminitruck.com/