Carb differences
 

anyone know how to tell the difference in carbs from year to year.

Thanks

No.

~T.J.

I know 84-85 carbs have an extra solenoid or 2 on the passenger side, I think..

Wheres Peejay when ya need him, I know he knows..

79 and 80's have the mixture and idle screw vertically just above one another. And 81-85 have them sortta horizontal a few inches apart..

Ok thanks. That narrows it down to 81-85

Sorry man, if I had my digi cam I could take some pics for you...I know that on the 84+ carb, there is a silonoid that looks just like one of the silonoids on the rats nest (the big group of silonoids on top of the engine). It has like a two wire plug on it and a color-coded sticker (maybe, if its still there :)). The pre 84 carbs didnt have this silonoid I dont think...Thats about all I can tell you. Like I said, if I had my cam, Id take some pics. I have an 84 and an 83 carb to take pics of to show you...

~T.J.

If I remember right, the choke horn is smaller (=more restrictive at high RPM...) on the 84/85 carb than the '80. Definitely a lot less emissions on the outside, too. I'll take a pic of the '80 and the '84 and post 'em when I get home 'cuz that's just the kinda guy I am...:cool:

Ok I guess it's a pre 84. Thanks for the help

Direct comparison pics to help...

back side of carbs as viewed from the passenger fender...first two are '80 then three of the '84...

https://www.rx7club.com/forum/attach...&postid=904445

https://www.rx7club.com/forum/attach...&postid=904459

https://www.rx7club.com/forum/attach...&postid=904474

https://www.rx7club.com/forum/attach...&postid=904491

https://www.rx7club.com/forum/attach...&postid=904480

From the front side where the fuel lines enter the carb...one of the '80 and last two are the '84...

https://www.rx7club.com/forum/attach...&postid=904455

https://www.rx7club.com/forum/attach...&postid=904505

https://www.rx7club.com/forum/attach...&postid=904500

cool... one of those pics caught me by suprise... I thought one of them looked REALLY fimilar... I looked at it for about 30 seconds.... and I'll be damned..... :D
















hehehe.... A recent pic of my carb.....:) And it doesnt look all that bad either... I just need to rebuild it.. I am tryin to find a kit.. gonna call Mazda tomarrow.... then all the little stores around here..... :p:

THANX LATERZ, Andrew