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I have 68 Toronado that needs the carburetor rebuilt, replaced, or upgraded. I am having a little trouble finding a re-manufactured Rochester 4MV Carburetor. My Rocket Action Time Capsule is a low mileage dream machine, but unfortunately low miles means it has set all for the last 45 years... The seals so dry rotted that just shutting the hood can lead to a fuel leak... :/

I thought finding a rebuilt Rochester would be easy to find, since GM used them for years and in tons of cars... Now I am not so sure about that...

I called USA Part Supply, they said that they don't have any, but would be happy to rebuild the one I have for $399.99... So I am just wondering if I should do that, find a rebuilt one (not sure where), or go with a high performance aftermarket one...

This might not be something I should be concerned with, but I am a little bit hesitant about buying one of these fits all Rochester I am finding online. I really don't want to lose any engine performance. I usually avoid the undisclosed headache of anything that says work with anything, everything, and installs in a snap... swear11.gif

So figured this was the best place to get advice from people who are passionate about Oldsmobile's.

Q: Anyone know where I can find a rebuilt Rochester 4MV Carburetor???
Q: Should I have the orig rebuilt since its been the life source of my Toronado since it wheeled off Lansing production line???
Q: Should I go with one of the many performance enhancing after market carbs??? Any specific ones that integrates easily and enhances the performance nicely??? (Not looking for anything that would require altering the hood)

 

What ever you decide keep the original one, me i'd rebuild the original one.

 

X2

try this guy to rebuild your carb...maybe he has one in stock for you

http://www.sparkyscarbs.com/

you should look for the carb number on your qjet...should read 7028252

 

I think if you're chasing the best price than getting a new carb is what you want. I suspect though the throttle lever won't match which will cause you to struggle getting the kick-down linkage hooked up which also effects your switch-pitch. Judging by your car, it seems rebuilding what you have is wisest however it's gonna cost ya. You could always try rebuilding it yourself and if you mess it up than just send it to one of the rebuilders.

Chris

 

Why not just rebuild it yourself?

Rebuild kit and float from NAPA: about $30.

Rebuild kit and float from Cliff's: about $40 plus shipping, and parts MAY be better quality (though I doubt it).

As I often say, Keep It Simple.

- Eric

 

Well I differently think I am just going to have the original rebuilt. I don't really know enough about those older carburetors to confidently take on rebuilding it myself. I would rather just spend the money and know it will be done right...

 

While I, conversely, hate to spend money and find out it was done wrong.

- Eric

 

I will pm you a note.

This is easily solved.

 

If you're going to have it rebuilt contact Danny Sarvis (70Wcars on our site). He rebuilt a Rochester Quadrajet for me and did an excellent job. I've done many Q-jet rebuilds myself but he can redo the primary throttle plate bushings and does a masterful job.

 

I don't think he'll need anything fancy like bushings if his car is truly low-mileage.
I'd still try it myself first - what's the worst that can happen? It doesn't run well?
If so, then you have a good reason to send it for an expensive rebuild.

- Eric

 

I would make sure whoever I sent my carb to that it is understood to rebuild it and get your original back not a swap out!

 

Thanks for the good words Olds64.

68Rocketaction...you have a PM.

Let me know if I can help, and ONLY rebuild of YOUR carb. No Swap-out.

Danny

 

www.sparkyscarbs.com

he'll rebuild YOUR carb. and send it back to you looking and performing like it was just made yesterday, and, he's a Toro guy.


bill