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  #46  
Old 01-26-2010, 09:14 AM
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I measured the vacuum at the T line from the brake booster going to the transmission I thought was the corect place according to the troubleshooting post that I was using. If that is not the correct place, then I will have to cehck and get back to you.

The car is 123.133, 617.952 engine and 722.315 transmission. I think.

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Last edited by nomorehurry; 01-26-2010 at 09:26 AM.
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  #47  
Old 01-26-2010, 09:30 AM
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Originally Posted by nomorehurry View Post
I measured the vacuum at the T line from the brake booster going to the transmission
The line begins at the main vacuum line and goes through an orifice to the top of the VCV. The measurement is taken anywhere after the orifice. The VCV controls all vacuum downstream of the orifice.
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  #48  
Old 01-26-2010, 09:39 AM
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The main vacuum line from the pump to the brake booster reads 20" Hg. From this line is a TT. One leads to the cabin inside and the other line goes to a 4-split. From the split there is a line going to a green flow restricter and then to a white valve? on the injector pump, another goes directly to the transmission, and the fourth goes to the shift valves on top of the camshaft cover (head cover in america). Is the white control valve on the injector pump the VCV? If so, I have not measured that vacuum. Also, I have not adjusted anything in that area for fear of adjusting incorrectly.

In case I forget: Thanks for your help.
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  #49  
Old 01-26-2010, 09:53 AM
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Originally Posted by nomorehurry View Post
From the split there is a line going to a green flow restricter and then to a white valve?
The line must go though a small plastic orifice and then to a T above the white valve. The opposite side of the T goes to the transmission. The bull of the T goes through the green and white accumulator (it's not a flow restrictor) and into the VCV (vacuum control valve).

It sounds like someone without any knowledge was replumbing that system. There is no four way connector on that vehicle.
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  #50  
Old 01-26-2010, 10:04 AM
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There is on my car so I will go through the vacuum diagram again and also recheck all of the vacuum pressures. I have the vacuum diagrams. I also have the VCV test instructions from peterschmid.com that I will go through to see what isn't reading like it is supposed to. If I find anything, I will get back on the thread and let you know.

Signing off for now to go get my hands dirty. Have a good day.
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  #51  
Old 01-26-2010, 11:41 AM
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FWIW, I went through the vacuum lines again and found that the 4-way connector was used to replace two 3-way connectors. The only difference being an orifice between the two 3-ways which I assume restricts the flow of vacuum to the transmission. I had two 3-ways and an orifice connector in my parts box so I put them in and drove down the street. The shifting has improved but I didn't get it completely warm. However, the shifting I just experienced makes me happy and I can easily live with the remainder - or make minor adjustments to the bowden cable.

Now all I have to do is adjust the idle a little to eliminate the hard shift to 1st and reverse from park. I am pretty sure it has something to do with the guide lever assembly on top of the camshaft cover because it shifts fine when the idle is low and hard when idling at a higher speed.

Thanks for your help.

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