1985 2.8 Carburetor replacement - S-10 Forum
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1985 2.8 Carburetor replacement

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Old 06-17-2008, 07:47 PM   #1
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1985 2.8 Carburetor replacement

Hey guys, i'm new here and only around for one short term purpose. My small knowledge is mostly with rotaries so spare me some patience please

My parents have a 1985 S-10, 2.8L carb'd not TBI, all stock used as a DD and work truck. The carburetor is shot, leaking needles/sinking-sunk floats etc***... I am trying to find a DIRECT replacement carb for them as i will most likely be holding the wrench. i know enough about carbs to be semi confident playing with the air and idle screws thats about it.

I emailed holley and they told me the 502-3, although this appears to be a throttle body for injection. Am i missing something?

Where can i look to read up on the carb for this particular motor, and for replacements? I'm not finding much on the web except that holley, but then this isnt my area of knowledge either....

*** in case anyone is interested these are the symptoms:

truck has been otherwise serviced well, plugs wires, dist cap/rotor button, fuel filters, EGR valve etc... mileage in the past was somewhere around 20mpg

cold/hot starts are fine
cold/hot idles are fine
low load cruising is fine
WOT full load pulls just fine
only problems are mileage has dropped to 10mpg or less, and..
when OFF the throttle completely, mid-turn, it dies and acts as if its flooded, requiring holding the throttle open to restart. this only happens when off the pedal.
my research on this so far has pointed me to floats and/or leaking needle/seats which is consistent with what my parents were told. unfortuantely no one is willing to work on it, sio i get to get my hands dirty and learn something new again this is just another reason i cant wait to get home to Tennessee. HI is great and all, but i miss home...

thanks for any input, direction or assistance you're willing to offer

Last edited by paulmasoner; 06-17-2008 at 07:49 PM.
Old 06-17-2008, 07:54 PM   #2
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Re: 1985 2.8 Carburetor replacement

look at the numbers on the curb side of the carb and google them. Once you find out the carb model and make, then LMC truck has the carbs and rebuild kits. And they are not holley. It's most likely a Rochester carb.
Old 06-17-2008, 08:06 PM   #3
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Re: 1985 2.8 Carburetor replacement

Quote: Originally Posted by JChapoton
look at the numbers on the curb side of the carb and google them. Once you find out the carb model and make, then LMC truck has the carbs and rebuild kits. And they are not holley. It's most likely a Rochester carb.

wow didnt expect anything that fast! Thanks for the tips, i'll pass that on to the rents. Hopefully i can get it ordered for them before i head home!

thanks again!
Old 06-19-2008, 10:59 AM   #4
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Re: 1985 2.8 Carburetor replacement

Mine has the Rochester e2se on it 85 2.8 4x4

Old 06-19-2008, 11:20 AM   #5
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Re: 1985 2.8 Carburetor replacement

Holy crap they're really that difficult???
Old 06-19-2008, 12:14 PM   #6
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Re: 1985 2.8 Carburetor replacement

They are not that 'difficult' but theres lots of parts....
Old 06-19-2008, 04:25 PM   #7
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Re: 1985 2.8 Carburetor replacement

Quote: Originally Posted by leprechaun1874
Mine has the Rochester e2se on it 85 2.8 4x4


right on, thanks man. waiting on word back from my parents(its their truck) as to whether its a E2S or E2SE
Old 06-20-2008, 04:35 PM   #8
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Re: 1985 2.8 Carburetor replacement

Some more help
http://www.geocities.com/el22lobo.geo/varajet.html
Old 06-20-2008, 04:50 PM   #9
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Re: 1985 2.8 Carburetor replacement

Quote: Originally Posted by leprechaun1874

cant view here at work, but i'll tkae a look at it later.

thanks for all the help guys!!
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