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#1
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Quote:
With mine, I've tried connecting the pump direct to the throttle diaphragm (so no brake switches to present problems) and with the pump given 12v to the top and bottom terminals, and the central terminal earthed, the pump still can't pull the throttle. It just seems the throttle springs are too strong for the pump to overcome. I've got the same problem on two cars having tried 3 cruise control pumps, 2 injection pumps/springs, and two different throttle reels... Would you be willing to try connecting your pump as above (just with the connector removed and a couple of jumper leads to the pump from the battery) to see if your pump opens the throttle fully when connected up? Thanks, Jim |
#2
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I should be able to try that this weekend.
Can you get yours to pull the throttle by pulling a vacuum with a Mityvac attached directly to the dashpot? To test the condition of the dashpot?
__________________
1985 744 gle d24t 1985 745 gle d24t |
#3
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Thanks
I don't have a Mityvac (so can't measure the force required) but if I suck directly on the tube I can make the throttle open. If I cap the tube the throttle stays in the same place. So I suspect the pneumatics beyond the pump are good... |
#4
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So today I tried the cruise on my 740, having replaced a couple of vac lines and the throttle spindle on the weekend. It now works fine - so I'm very happy
Thanks ngoma for the help, much appreciated. I'm still not sure whether it was just my not connecting the pump correctly that meant that it didn't work on test... Very happy with it, it made the 120 miles this morning go even quicker than usual! Jim |
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