transmission vac pump help

[BigDuck]

what wrench is used to loosin the bolt to adjust the position of the pump? i cant seem to get to it with a standard wrench, i went to the tool store to find an OPEN END obstruction wrench but they only offer closed ends. any help will be greatly appreciated, i hope i dont have to remove the intake just to get to this one bolt.

 

[SPECIALTYLC]

Maybe a distributor wrench for any chevy. Since that is what that pump replaces on a gas engine.

 

[jmmay82]

If you are talking about the vac pump where the distributor would go in a gasser I was able to get a 15 with a long 3/8 extension on it easily

 

[jmmay82]

Maybe your pump is clocked poorly though hard to say with out seeing it

 

[BigDuck]

Well i took an old 3/8 open end and ground the side down, that worked. I adjusted it but the transmisson still shifts hard so i've adjusted it to about 5 different positions with no luck finding a sweet spot, it may need to be replaced or taken off and cleaned like one guy did, i just gotta find that thread again.......

 

[doghead]

The position of the pump, makes no difference to the function. It is not position sensitive.

 

[jmmay82]

I was just about to say that

 

[BigDuck]

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its the modulator on the side of the ip i'm adjusting not the vac pump, sorry i miss spoke.