jakeyman_i_am

I am recording this for future reference -

Recently, my supercharger on my 1993 Buick started making allot of noise. I decided to replace it (having never worked with Eaton chargers.) I found a guy who had one off of a 1994 SSEI. After swapping them the engine was leaking a huge amount of antifreeze through the blower.

So, my first thought was that the gasket between the engine and the blower was not sealing correctly. So, I pulled the blower off, and replaced the gasket with a new one. After this, and reinstalling the blower, the same problem exsisted.

I had been told that a 1994 charger will not work with a 1993 engine. So, I pulled the blower off and was getting ready to swap the old one back on to hold me over until I could get a new 1993 charger. I noticed at this point that the throttle body on the 1994 was much (12mm) larger than the throttle body on the 1993 blower. And, that a coolant passage was machined into the throttle body (probably to reduce throttle ice.)

My issue was that I was using a 1994 blower, and a 1993 throttle body. Coolant was leaking through the space between the throttle body and the blower, and then of course going right into the engine.

After getting a new throttle body (for a 1994) and a gasket for a 1996 454 (7.4 L) truck engine, which is the gasket you need I'm not kidding, the coolant leak problem was fixed.

Just in case anyone ever searches for this problem!

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Jake Budde
Lifetime Supercharger Lover
http://budde.no-ip.info

The speedy nerd

04goat

excellent find and write up..

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2004 gto yj 6sp tb bypass, maf screen delete,polished tb, 238/248@50 600/605 112lsa,pacesetterlt's,custom 3 1/2" single mandrel bent exhaust,stock #'s 309rwhp, 344rwtq,after mods 398.44 rwhp and 389.52 rwtq, 12.7 @ 109 w/ slipping clutch on dr's, ls7 clutch and flywheel in the works.