Scan Master numbers, Running rich, detonating etc.

[87we410877]

You'll be using them to bring the bottom and top of the regulator body closer to each other. This will shorten a spring inside the body. Very sensitive. You'll see how sensitive it is when you watch the gauge while using the pliers. The spring is actually in the lower half of the 2 halves of the body.

Thank you! I'll give it a try. Is that a hack or is this actually designed to be adjusted like that?

 

[michael evans]

Thank you! I'll give it a try. Is that a hack or is this actually designed to be adjusted like that?

I would say it is more of a hack. Cheapest adjustable regular I have seen is $138.00

 

[mikestertwo]

I assume you have a 233 regulator. Install a 237 regulator. They are used on late 80's GM front wheel drive cars with the V6 engines. The bone yards are full of them.

 

[Ttype6]

Thank you! I'll give it a try. Is that a hack or is this actually designed to be adjusted like that?

It's what needs to be done to increase fuel pressure with a non adjustable regulator and it costs nothing. If you want to decrease it,you can't. One of the production processes was to calibrate it by giving it a squeeze to bring it up to a specific pressure.

 

[lib87t]

Could it be a cracked driver header??