Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
* * * * * 1 votes

weber carb on an ea81 in a subaru standard!

weber carb carburetor 1.8L

  • Please log in to reply
18 replies to this topic

#1 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 28 March 2013 - 06:30 PM

got a 36/32 weber carb from craigslist for $100... came off of a datsun but the adapter plate wasn't the same... ordered the trans-dapt 2107 adapter plate from the internet (waiting on it to arrive)

 

XmtGyD0l.jpg

 

more photos:

http://imgur.com/a/Ang6W#0

 

- where do I get the proper jets? (internet-only or would someplace in seattle have them?)

- does it look like I'm missing any pieces?

- will the intake manifold work for this?

- will the K&N filter clear my hood?

 

I also picked up a new thermostat and a generic fuel pressure regulator from o'reilly...

 

anyone local to seattle want to help me set this thing up in exchange for beers?


Edited by saturn, 28 March 2013 - 06:35 PM.


#2 djellum

djellum

    Eat, Live, Breath Subaru

  • Members
  • 645 posts
  • Vancouver WA

Posted 28 March 2013 - 11:46 PM

places will likely sell jet kits but not individual jets.  Seattle is a big place you might find a shop that specializes enough to get some.  first you have to see which you have to see if you even need to change them.

 

looks complete, though you would normally have the fuel inlet on the other side.  simple to route the hose either way.

 

check your fuel pressure before you install the reg, it might be right on.



#3 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 29 March 2013 - 01:12 AM

is there a set jetting for sea level for the 1.8L? the ones in there are something like 138 and 130? maybe I'm making those numbers up - it isn't in front of me at the moment...



#4 TomRhere

TomRhere

    Certified BRAT nut!!!

  • Members
  • 4,030 posts
  • Hillsdale, Mi. USA

Posted 29 March 2013 - 03:12 AM

Proper jet sizes have been posted on here a few times. Try searching for them and use GeneralDisorder's name as he has posted them a few times.



#5 mudER wagon

mudER wagon

    New User

  • Members
  • PipPipPip
  • 61 posts
  • Tumwater washington

Posted 29 March 2013 - 03:32 AM

If your having trouble finding stuff such as jets try calling Paul (3608326272) at eatonville auto parts, best parts guy on the west coast.

#6 Loyale 2.7 Turbo

Loyale 2.7 Turbo

    The Mighty "BumbleBeast"

  • Members
  • 5,838 posts
  • Roatán, Honduras.

Posted 30 March 2013 - 01:52 AM

The Trans-dapt 2107 won't fit on the EA81 intake, but a good idea is to take that intake and the adapter to a Shop for a Professional Aluminium Welding.

 

I've done a Writeup about the Weber Swap onto a EA82... is pretty similar to the EA81 and my Jetting Experiences are... ~► Here.

 

Kind Regards.



#7 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 30 March 2013 - 04:32 PM

is it too small?



#8 Loyale 2.7 Turbo

Loyale 2.7 Turbo

    The Mighty "BumbleBeast"

  • Members
  • 5,838 posts
  • Roatán, Honduras.

Posted 31 March 2013 - 04:07 AM

The Carburator's Base on the EA81 intake manifold is Smaller than the one on the EA82, and the Trans-Dapt 2107 Adaptor Plate does fit the EA82's Base... in other words: That adaptor plate is Bigger than the Base on the EA81 intake Manifold... But you can Weld the adaptor plate to the intake.

 

Kind Regards.



#9 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 02 April 2013 - 06:13 PM

so I wish I had known that before I ordered the adapter... because the adapter that came with the carb and the old Datsun intake seems to be one that will fit the EA82 as well - except it's flat!

 

vTIa9UTl.jpg

 

is welding the only option? can I just use an EA82 intake? the pick-n-pull locations near me (Tacoma and Lynnwood) both have 88 and 89 GLs -- that would be an EA82 right?


Edited by saturn, 02 April 2013 - 06:28 PM.


#10 spazomatic

spazomatic

    USMB is life!

  • Members
  • 419 posts
  • castle rock

Posted 02 April 2013 - 11:05 PM

so I wish I had known that before I ordered the adapter... because the adapter that came with the carb and the old Datsun intake seems to be one that will fit the EA82 as well - except it's flat!
 

 
is welding the only option? can I just use an EA82 intake? the pick-n-pull locations near me (Tacoma and Lynnwood) both have 88 and 89 GLs -- that would be an EA82 right?

yes, and yes. Only other option would be to return it and order the correct one. But why do that? Now you have an excuse for an upgrade

#11 Loyale 2.7 Turbo

Loyale 2.7 Turbo

    The Mighty "BumbleBeast"

  • Members
  • 5,838 posts
  • Roatán, Honduras.

Posted 03 April 2013 - 12:19 AM

Not exactly "Yes and Yes" ... because '88 and '89 GL's should be EFi, not Carburated... especially in USA.

 

So, Yes, you can use an EA82 intake manifold, but it should came from a Carburated Model, not an EFi Model...

 

...unless you want to convert your EA81 to EFi which has been done too...

 

so I wish I had known that before I ordered the adapter... 

 

 

All that information is in my Weber Swap Writeup, which I Posted a link above.

 

Kind Regards.



#12 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 03 April 2013 - 01:20 AM

what about an 82 GL? was there a cutoff date when they switched to EFI on all US models? I'd rather stick with the weber carb for now -- EFI swap would be awesome if I had someone there to tell me what to do, but it's too much work to do on my own for such an old car.

 

there are 3 huge local junk yards with lots of Subarus... one says they have an 82 GL



#13 silverback

silverback

    New User

  • Members
  • 150 posts
  • Seattle

Posted 03 April 2013 - 02:01 AM

The Subaru listings at the junkyards tend to be full of errors. It is difficult to find a 'carbureted' manifold.

Carb's Unlimited in Auburn, WA., is a Redline dealer and has jets and jet kits.

There is a member who had a manifold that might work for you. I will check.

Have patience, you may have to make your own adapter.

As for your height question, you will have to measure the height of the old carb with air cleaner housing installed. Measure from the bottom of the gasket/thermo shield to the top of the air cleaner. That number is what your new installation will have to fit into.

#14 spazomatic

spazomatic

    USMB is life!

  • Members
  • 419 posts
  • castle rock

Posted 03 April 2013 - 06:01 AM

Oh yeah whoops! Typing without brain fully engaged again

#15 Svengouli7

Svengouli7

    Smile, taste kittens

  • Members
  • 311 posts
  • Bentucky Wa.

Posted 03 April 2013 - 09:57 AM

When I was living in Seattle Bow Wow auto parts was able to get those adapters in, may have even stocked them at one time. Think they even gave USMB/Hatch patrol folks a discount? Not sure.

 

They used to have a location in Lake city and Lynnwood.

 

I would return the one you have and order locally so you have a place to return it if you have problems. I was once given one that was machined out incorrectly so stuff happens.

 

Silverback contacted me because I have an EA82 manifold that was converted to fit an EA81 and has a weber plate already on it I have up for sale. I don't know if I would really consider this an upgrade or just a way to make it all work. If you want to explore this option send me a PM.

 

I would leave the settings and jets alone on that carb till you've run it a bit. I doubt it is jetted that differently. I ran one for a while that was off a toyota truck with no penalties.. I am sure it could have been dialed in better but it ran fine.

 

Good luck either way



#16 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 03 April 2013 - 01:30 PM

Svengouli7: converted how? and I got an email about it... I thought the EA82 manifold bolts right up?

 

also, since it came off of a much smaller datsun, I'd be afraid of it running too lean and my engine overheating.


Edited by saturn, 03 April 2013 - 01:33 PM.


#17 Loyale 2.7 Turbo

Loyale 2.7 Turbo

    The Mighty "BumbleBeast"

  • Members
  • 5,838 posts
  • Roatán, Honduras.

Posted 04 April 2013 - 12:04 AM

Yes, the EA82 intake will not fit as a Direct Bolt-On on the EA81 engine, but you can make it happen with minor mods.

 

Very Kindly, let me Suggest this Idea to Saturn:

 

Why don't you Sell your Huge Trans-Dapt 2107 (EA82) Adaptor to another Subaru Owner with a Carburated EA82 engine, and Buy the proper Redline-Weber Adapter for the EA81 Engine?

 

Because Despite that the Redline-Weber Adapter for the EA82 Sucks due to its two-plate design; their EA81 Adapter works just Fine, because is a Single Plate Adapter, not too tall like the Trans-Dapt one.

 

I Believe that followin' my advice will simplify things a lot for you...

 

Kind Regards.



#18 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 04 April 2013 - 01:22 PM

oh I didn't even know there was one...!

 

in this case, I have TWO adapter plates for sale.



#19 saturn

saturn

    USMB Regular

  • Members
  • PipPipPip
  • 86 posts
  • Seattle

Posted 04 April 2013 - 01:28 PM

Carbs Unlimited (local store) sells the adapter! I know what I'm doing today...






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users