Spooling help

[Steve Wood]

remove the boost controller and replace it with a straight piece of hose between the compressor port and the actuator, set the actuator to 1/8"---what does the boost read at wot?  second gear is fine.

[Shimy87]

Well with tuner style, 1/8 pull to pin, she pulled 13-14 lbs. I suspect they sent me the regular actuator, not the hd. The part # on it is 1011-144, anyone know what the part # should be for a hd actuator?

[Steve Wood]

that is the right number but it acts like the regular one assuming you have no leaks.  I bet it is mismarked.

[Shimy87]

It has to be mismarked. I also turned it up to 1/4 inch to pin and it would pull 15-16 lbs. Tomorrow ill call them and see if they will swap me a new one.

[Steve Wood]

you sucked some sea foam thru it to be sure there are no leaks?

[Shimy87]

Yes...alot...s moked out the back but none at all  in engine compartment. Checked around each header alot where they are known to crack and no smoke at all. An hd actuator set at 1/4 inch pull should have surely been over 20 lbs.

[motorhead]

It has to be mismarked. I also turned it up to 1/4 inch to pin and it would pull 15-16 lbs. Tomorrow ill call them and see if they will swap me a new one.

Why does it have to be mislabeled? Why can't it be defective, damaged, or another issue altogether?

You should put a vacuum pump/pressure gauge on it and see where starts to move the arm - off the car.  This will help determine if it is the actuator that is faulty or your car is causing problems.

[Shimy87]

At what pressure applied to it should the arm move. 18lbs??? Also with no exhaust leaks, no vacuum leaks, what else on the car would affect boost stopping at 23lbs??

[Steve Wood]

it will start a bit before...just call Mike up and tell him the situation and ask to swap it since you cannot find anything else wrong.  As it spools pretty fast, it would seem to be the actuator

[Shimy87]

Bench tested it this morning, starts to move the arm about 10 lbs of air. Called them and waiting for an answer as to what they will do. Wasted a month chasing my tail trying to get this thing right 

[Steve Wood]

Maybe you learned something that will help you in the future.

[Shimy87]

Your a wise man Mr. Wood. If your not careful, word is going to get out that you know a thing or two about these dam Buicks and then everyone is going to be asking you for advise 
 
Thanks again! 

[Steve Wood]

got a new actuator, yet?

[Shimy87]

Friday...no time to test yet I will update a soon as I can

[Shimy87]

finally got it out this morning. Actuator set at 1/4 inch pull to get on pin. 23lbs boost. I'm out of ideas. no exhaust leaks ( I can find) could a vacuum leak cause this lack of boost. My cruise will very slowly lose speed on a long incline and i think that is being caused by a very slight vacuum leak. ?