June 3, 2020 at 9:23 am #75676
Hi got a problem with my vacuum wipers they work without the wipers off but not on without being pushed the prefect had been dry stored since 2009 so not sure if it’s because they have not been used any ideas much appreciated thanksJune 3, 2020 at 10:32 am #75677
The wipers are generally reliable, most problems being with the vacuum system. Check the hose from the pump to the motor, but the usual main culprit is the fuel pump, and many of these have been bypassed. Using a length of rubber hose between the pipe from the manifold and the pipe to the motor should tell you the fuel pump’s condition. The motor, if that is the problem, usually responds to a spray of WD40 into the vacuum connection. Also, make sure the valve is opening fully.June 4, 2020 at 2:37 pm #75694
Hi unfortunately I found the leak on the metal seal on the Paddle spindle Have tried to seal it so I will see tomorrow If it works is there any way I could possibly change it to a electric motor thanks again and much appreciatedJune 7, 2020 at 7:57 pm #75740
I use the complete motor and linkage assembly from an old-style Mini, preferably the square motor type, but the round motor will fit with more of a struggle; the wheel boxes are bigger. It is necessary to shorten the tube between the wheelboxes, the amount isn’t critical as you don’t need to re-flare the cut tube. You’ll need a block of some sort, about three to four inches high for the motor to stand on.June 9, 2020 at 11:37 am #75759
Hi Firstly I would like to thank you for your help Just bypass the pump as you mentioned in t last message and the wipers are now working fine
Do I need to fit a tee peace because I had already A pipe under the carburettor to the Pump? Plus do I need to blank off the old pipe on the pump which when to the wipers thanks again much appreciatedJune 9, 2020 at 11:46 am #75760
Just leave it as is with the pump out of the circuit; don’t worry about its connections but leave them open. The problem you will have is that the wipers’ speed will be entirely dependent on throttle position, and will stop entirely at full throttle, e.g. when climbing hills. This is why I have the Mini electric wipers.
100Es had a reservoir tank which allowed the wipers to continue for a short period, measured in seconds, at wide throttle openings but they didn’t have the combined fuel / vacuum pump. You could fit a tank if you find one, along with the one-way valve, but you’d be better going electric.June 9, 2020 at 3:35 pm #75761
Hi thanks for your response I was just wondering if I fitted a tee piece the and blank off the old connection on the pump it would be served by both so when climbing hills It wouldn’t be a problem or would it ? Thanks much appreciateJune 9, 2020 at 3:53 pm #75762
Or it would leak air into the inlet manifold, which is probably what it was doing before.June 11, 2020 at 1:41 pm #75770
How was it connected in the factory ? Manifold & vacuum pump with a Tee both sucking the wipers ? ( & guess, one way valve to stop pump sucking from the manifold on full throttle ?) or Manifold sucking through the Vacuum Pump to the Wiper, thus giving which ever vacuum is strongest?June 11, 2020 at 4:48 pm #75773June 12, 2020 at 12:20 pm #75781
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