4af carb on 4ac

[djbausch]

Hey rolla guru's 

So I got an ae82 recently 86' with a 4ac motor 70k km on the odo and I can't get the thing to idle for more than a minute once it starts up. It hadn't been started for over 2 years I'm thinking it's probably the idle jet and I'm gonna pull the carb apart this weekend to give it a bash with carb cleaner. If that doesn't work tho I'm wondering if I can just whack a 4af carbie on to replace it as they are dead cheap on ebay. Anybody had any experience with this?

[altezzaclub]

You don't want to put a whole 4AFE motor in there? It would be a great upgrade..

Hopefully a clean will fix it as you'd need to try the 4AFC carb on it to see if the bolt-holes line up and the cables fit. If you have a 4AFC carb there just pull the old one off and clean them both on the bench, then fit the one with the least worn throttle shaft.

[ke70dave]

Rebuild the carby, don't go replacing it with an oddball carb.  

https://www.ebay.com.au/itm/223140575858

 

 

Edited September 22, 2024 by ke70dave

[djbausch]

On 9/21/2024 at 9:21 AM, altezzaclub said:

You don't want to put a whole 4AFE motor in there? It would be a great upgrade..

Hopefully a clean will fix it as you'd need to try the 4AFC carb on it to see if the bolt-holes line up and the cables fit. If you have a 4AFC carb there just pull the old one off and clean them both on the bench, then fit the one with the least worn throttle shaft.

Is a 4afe double cam? I was thinking I might go a 4age silvertop eventually but since she only has 70k on the odo I wanted to use it as a run around first 

[djbausch]

8 hours ago, ke70dave said:

Rebuild the carby, don't go replacing it with an oddball carb.  

https://www.ebay.com.au/itm/223140575858

 

 

Yeah I seen the kit but then i was thinking if I'm spending one hundred why not spend $200 and just get a whole new carb if it fits and works. But then if I'm spending $200 why not get a procarb performance upgrade kit for $600 https://procarb.com.au/toyota-4ac-4afc-fajs-32-36-dgev-performance-upgrade/ but then if I'm spending six hundred why not get a webber for $800 but then if I'm spending $800 why not try and hunt down a cheap 4AGE and I think and think and the car just sits there.

[altezzaclub]

Lol!...and that's the way it goes with all car modifications!

The 4AC is a single cam driving 8valves, and a 4AFE a twin cam 16valve but with only one cam on the belt and the second cam is gear driven off the first?? So 57KW to 80KW

I jumped from 4K to 4AGE like a lot of guys on here and never saw a 4AFE.

[djbausch]

1 hour ago, altezzaclub said:

Lol!...and that's the way it goes with all car modifications!

The 4AC is a single cam driving 8valves, and a 4AFE a twin cam 16valve but with only one cam on the belt and the second cam is gear driven off the first?? So 57KW to 80KW

I jumped from 4K to 4AGE like a lot of guys on here and never saw a 4AFE.

Hmmm interesting. I think I seen one for free in the next town over last week might see if it's still going. They guy said it was a 4ac but it had the red writing 1600 toyota on the top and looked more like a twin cam with the spark plugs down the middle of the rocker cover

"If it's free it's for me"

 

Edited September 23, 2024 by djbausch

[altezzaclub]

A walk around a wrecker's yard is always educational. say you looked at all the 4AFEs.. Parts that are missing show model faults, so if there are distributors missing off a few, or throttle bodies, or heads, you know what the model faults are. They're a very common & reliable motor, but old and worn out I'd expect. Mind you, that price just can't be beaten, if it runs its good!