1986 carb going into an 88 + carb base gasket
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Author:  the_falcon [ Thu Aug 07, 2014 8:34 am ]
Post subject:  1986 carb going into an 88 + carb base gasket

Hello all, im about to install an 86 carb into my 88 spint and was curious if anyone has any pointers as to what I might have some trouble with (car had a ford carb on it so I have no reference point) also does anyone know where I can find the base gasket for it? And or a gm part number. Thanks!

Author:  mkc1962 [ Fri Aug 08, 2014 10:21 pm ]
Post subject:  Re: 1986 carb going into an 88 + carb base gasket

Well the easiest approach would be to have a carb rebuild kit......But the quickest and cheapest is to get a roll of gasket paper and make a gasket yourself.

As for troubles or reference. If you are installing a Hitachi Feedback carburetor, then there are all sorts of things that will need to be addressed. Wiring harneses still intact, vacuum line routing, etc. The one you have, if not some history of a recent rebuild or actually off of a running engine, would definately consider going though it. If its been sitting up for some time, or if the MCS is not functioning, it can deal you fits trying to get it to run and to do so reliably. I am guessing that the one you are taking off was probably a very simple non feedback carb?

I would start by referencing the under hood decal for carb vacuum routing. Make sure that you still have ALL of the components that make a feedback carb hookup possible. So many of these cars have been butchered there is really no way to tell until you break it all down and see what is and is not still there. IF you dont already own a Factory service manual, that is the best start anyone could make. Not haynes or chiltons, but a GM manual, commonly found on ebay for peanuts. Hitachi feedback carbs are not impossible to learn but do take lots of studying and understanding to get em right.

Author:  the_falcon [ Sat Aug 09, 2014 9:45 am ]
Post subject:  Re: 1986 carb going into an 88 + carb base gasket

Thanks Mike,

I noticed the rebuild kit on Rockauto, but $20 seemed a bit extensive since I just need the 1 gasket (however the GM dealer quoted me $40 just for the 1 gasket!) The carb that was on it was from a 40's ford v8 and the engine stalls when I make a turn (took the carb apart and everything seemed fine, but even at the lowest setting the engine runs RICH) so i'm trying to get the car back to how it is supposed to be, the carb I have came from someone on this forum parting out their car and supposedly was recently serviced, it appears that all of the original equipment is still on the engine for hooking it up. The carb I bought has a small port, then a larger crevice that I wasn't sure how the gasket would be set up for, but I might just end up taking a guess and making one.

Author:  mkc1962 [ Fri Aug 15, 2014 4:42 pm ]
Post subject:  Re: 1986 carb going into an 88 + carb base gasket


if you choose the route of refreshing, take the time and contact TOMCO.

Tomco has been making carb kits for as long as I can remember. Some parts houses do still carry them but you can buy from them direct by calling the # on their web page. Most of the carb house in the past few years seem to be carrying a kit by Hygrade. Ive had lots of problems with those kits. Tomco's kits have been and still are the most thorough I have ever used, including all parts. Some of the cheaper kits often are missing some things most commonly the accel pump. Also their prices online are much cheaper than most kits bought at stores. Good luck and be sure to let us know how it goes.

Author:  the_falcon [ Sat Aug 16, 2014 11:12 pm ]
Post subject:  Re: 1986 carb going into an 88 + carb base gasket

My friend came over and traced out a new gasket from a gasket sheet.Still have to work out some things but it appears it worked out okay, guess I won't know for sure until I go out and start driving it in a few weeks lol

Author:  aiden654 [ Fri Nov 25, 2016 1:41 am ]
Post subject:  Re: 1986 carb going into an 88 + carb base gasket

if you choose the route of refreshing, take the time and contact TOMCO.

Author:  dale50000 [ Thu Dec 01, 2016 11:25 pm ]
Post subject:  Re: 1986 carb going into an 88 + carb base gasket

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