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Old 09-05-2006, 10:13 PM
ramjensen ramjensen is offline
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Join Date: Jul 2006
Posts: 79
Another road test

Ok, I turned my vcv fully clockwise and did a road test teed into the output of the vac amplifier. Shifts firmed up a little and no revving at 2-3 shift, but I think they may still be a bit soft and i still think I may have too much vac. At idle of 750 rpm I read 13 inHg. Under light pedal about 11inHg, under moderate pedal about 6 inHg, under heavy pedal O inHg. When I check vac with the same adjustments but teed into the output of the vcv I get 10 inHg at idle, 3 inHg under light pedal, 0 inHg under mod pedal, +1 under heavy pedal. I double checked to make sure I turned the plastic screw on the vac amplifier fully clockwise and indeed I did, I checked it while teed in and it is set at the minimum vac boost. Does this mean my vac amplifier is no good b/c it boosts my vac too much? I can get the vcv to give me very low to no vac under acceleration as reported above. If the vcv is ok, maybe one of the other inputs to the vac amplifier is the problem rather than the vac amplifier itself? What if I hooked something up wrong when I replaced my vac lines to the vcv? I will have to study a vac diagram and see if it matches what's under my hood. Everything was fine until I messed with my vac lines, so maybe I just hooked something up wrong.
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87 300D 162,000 miles: It's not just a car, it's an adventure!

Last edited by ramjensen; 09-05-2006 at 10:19 PM.
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