Rebuilding the TBI on 88 K30...
 

I thought I’d go ahead and order the TBI gasket set for one of my trucks. Just finished the top. What a pain in the arse removing the base plate with water inlet/outlet. Should have left it alone...

Re: Rebuilding the TBI on 88 K30...
 

The inlet/outlet on the back side that threads into the base won’t budge, crapola :waah:

Re: Rebuilding the TBI on 88 K30...
 

Anyone know what the heck that base plate with coolant going thru it is for? To cool the TBI?

Re: Rebuilding the TBI on 88 K30...
 

Re: Rebuilding the TBI on 88 K30...
 

Re: Rebuilding the TBI on 88 K30...
 

Dunno why they are on there, the later 454s don't have it. I think for faster warm ups, and to keep from hydrolock when hot. I miss my TBI 454s...:(

Re: Rebuilding the TBI on 88 K30...
 

Supposed to keep the Throttle body hot for better fuel atomization and emissions. Poor design by GM. A replacement manifold from Edelbrock puts the water into the manifold itself without the spacer. Gasket underneath the spacer tends to create a vacuum leak after quite a few miles.

Re: Rebuilding the TBI on 88 K30...
 

Thanks!