2F - rebuild...

[charliemeyer007]

Not a Holly/Webber person. My 72 came to me in 82 with a Rochester 2BBL. Its still there. Back in the early 2000's I had to take it apart enough to free the accelerator pump. Some sort of blob of glue bonded the leather cup to the body. I greased the cup with Neat's-foot oil and haven't touch the carb since.

 

[Pighead]

Which Aisin carb do you have? I prefer the mechanical secondary of the earlier carbs to the vacuum operated secondary of the later carbs.

 

[Spike Strip]

Aisan.

 

[flee]

My original '70 (pictured at left in my avatar photo) was stock (Aisin) when I bought it in '78.
In my quest for better power and mpg I added an exhaust header and Holley 350 2bbl carb.
The improvement was dramatic, to say the least. I swapped both items at the same time,
so I can't say how well the Aisin would have performed with the new header. Mpg were very good.
I found the Holley to be easy to tune with jets and other parts readily available in the USA,
as was the knowledge base for the swap. The Holley 500 carb may be a bit much depending on your build.
My current 40 has a 2F and came with a Weber 38 2bbl. I find it to be much like the Holley in that tuning it is
very straightforward with the exhaust header my engine has. Jets, other parts and knowledge are easily found.

My opinion is that once you head down the performance path, as you are doing, changing the carb is no different
from changing the header or cam or distributor, etc. What matters is how well the components work together.
Many if not most of the people on this forum prefer original equipment but they may not be on the same path as you.
I'm glad my '63 40 has the 2F and a header. I could probably make the Aisin carb work if that was what I had but the
Weber works great for me and gets very good mpg as well. I like the fact that they are still making new ones, too.

Good luck with your project!

 

[CruiserTrash]

Not a Holly/Webber person. My 72 came to me in 82 with a Rochester 2BBL. Its still there. Back in the early 2000's I had to take it apart enough to free the accelerator pump. Some sort of blob of glue bonded the leather cup to the body. I greased the cup with Neat's-foot oil and haven't touch the carb since.

I’m pulling a Rochester off my 40 at some point this summer. If it’s the same as yours do you want it for spare parts? Feel free to PM me.

 

[RevISK]

@flee makes some great points.

I had a Weber 32/36 and when it behaved, it was great. I have headers and the combo felt like a race tractor. I’ve since converted back to a stock setup running a City Racer Fuji carb (OE knockoff) and it is much more consistent but not as racey.

I’d take the time down and learn to rebuild your existing carb for when everything is back together.

 

[aztoyman]

To all you guys that have the old Rochester 2G carbs, Please don't trash them. Guys like me use them on other vintage engines. I wouldn't mind a spare for my old truck.

Sorry for the slight hijack.

 

[CruiserTrash]

Not sure which Rochester I have but it’s old and it’s on top of a 2bbl 1969 FJ40 intake. Anybody can PM me if they want it.

 

[Landcruiserfj45]

Hey friends,

It's really scary how fast time flies.

I just wanted to check in after not posting here for a while.

Just a quick update: things are definitely moving forward, even if not much has happened lately.

There have been a lot of other things to take care of in the meantime.

But, things will be back on track soon.

It also took a while until I finally found affordable, genuine 1mm oversize piston rings.

It's sometimes really outrageous how expensive genuine Toyota parts are.
I'll post an update soon.

See you soon, Juergen

 

[CruiserTrash]

Hey friends,

It's really scary how fast time flies.

I just wanted to check in after not posting here for a while.

Just a quick update: things are definitely moving forward, even if not much has happened lately.

There have been a lot of other things to take care of in the meantime.

But, things will be back on track soon.

It also took a while until I finally found affordable, genuine 1mm oversize piston rings.

It's sometimes really outrageous how expensive genuine Toyota parts are.
I'll post an update soon.

See you soon, Juergen

View attachment 4191449

View attachment 4191450

View attachment 4191451

It took me a while to find Toyota or OEM +1mm rings as well. Glad you got some!

 

[Landcruiserfj45]

My original '70 (pictured at left in my avatar photo) was stock (Aisin) when I bought it in '78.
In my quest for better power and mpg I added an exhaust header and Holley 350 2bbl carb.
The improvement was dramatic, to say the least. I swapped both items at the same time,
so I can't say how well the Aisin would have performed with the new header. Mpg were very good.
I found the Holley to be easy to tune with jets and other parts readily available in the USA,
as was the knowledge base for the swap. The Holley 500 carb may be a bit much depending on your build.
My current 40 has a 2F and came with a Weber 38 2bbl. I find it to be much like the Holley in that tuning it is
very straightforward with the exhaust header my engine has. Jets, other parts and knowledge are easily found.

My opinion is that once you head down the performance path, as you are doing, changing the carb is no different
from changing the header or cam or distributor, etc. What matters is how well the components work together.
Many if not most of the people on this forum prefer original equipment but they may not be on the same path as you.
I'm glad my '63 40 has the 2F and a header. I could probably make the Aisin carb work if that was what I had but the
Weber works great for me and gets very good mpg as well. I like the fact that they are still making new ones, too.

Good luck with your project!

Hi there,

Thanks so much for the information about the 350 Holley carburetor.

That sounds great!
I've also decided to put a Holley carburetor on my engine once it's finished.

I already have a 350 Holley carburetor, it's in fantastic condition, and I got it for a really good price.

Right now, I'm working on making an adapter so I can mount the Holley on the 2F engine.

I'll post some photos here when I'm done.

Have a great day and see you soon,

Juergen

 

[charliemeyer007]

I love it when people make their own adapters! Modification work order bypassed.

 

[greenbeasty]

Do you mind sharing where you found the latest pistons and rings?

 

[Landcruiserfj45]

Do you mind sharing where you found the latest pistons and rings?

Hi,

Of course I'll tell you where I got the pistons and the matching piston rings.

I got them from Megazip...

Juergen

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[CruiserTrash]

Damn, the piston rings increased in price 5x since I bought them last year!

 

[Landcruiserfj45]

Damn, the piston rings increased in price 5x since I bought them last

Five times as expensive?

And I thought they were really cheap.

I had checked Yoshi Parts beforehand.

And Yoshi Parts' prices are a total disaster!!!

YoshiParts Genuine Parts Store • Toyota, Mitsubishi, Yamaha, Suzuki and other Japanese brands

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[CruiserTrash]

TP brand rings, same manufacturer as what’s in the Toyota box (but without a Toyota box). These were +1mm and didn’t need any filing, the ring gaps were dead on straight out of the plastic wrap. $27.68 plus shipping from Partsouq in Dubai. This was on April 20, 2024, so obviously things have changed - but still far less than $500 or $1000.