73'Vette

My TH400 was missing the transmission modulator line, so I had to order a new one. The problem is that it comes unbent. Anyone have any tips on how to bend it correctly? I have nothing to go by except that I know it goes from the transmission modulator to the intake for a vacuum source. Do I just eyeball it the best I can and take up the slack with longer rubber vaccum hose? Also, one end of it has what the description refers to as a restriction that acts as a metered orifice. Does this restricted end go closest to the intake or to the modulator?

NHvette

I'm confused. I don't think my TH400 has a vacuum line.

It has an electric kickdown switch.

:confused: :seeya

johns73

The metered orfice goes to the modulator. You can have someone hold one end of the line and then roll it out on the floor.

GTR1999

I can send you a picture of the line off my 72. I just cleaned it up and clear coated it. There are several bends to it,I'm surprised they it wasn't prebent?
Gary

PatsLs1vette

you want me to take a picture of my old one its sitting in my garage and not being used,if i knew you couldve had it its from my 73 too.Now that im looking at it the one end doesnt look right,it might be bent.If i remember right the end to the left goes to the intake



[Modified by patsnitrovette, 6:25 PM 3/31/2004]


[Modified by patsnitrovette, 6:26 PM 3/31/2004]

Big Fish

I bent mine, the AIM manual has a decent illustration of how it's supposed to look. It also straps to the bell housing just above the starter if I remember correctly. Mine was steel, made from over the counter material at the auto parts store (probably about 5 bucks) You will ned a fairly decent lever handle bender to do the job.