Re: Push button fuse keeps blowing

Posted by HH56 On 2019/10/30 15:28:36

Can't tell how deep the insulation on the white wire was damaged but if it did not go deep enough for the contact finger to touch the copper in the wire then no problem. Even if it did short, as long as the H button was not pushed the current would go no farther and would not be the cause of the problem in P. If you cannot bend the wires back to ensure clearance then a bit of insulating material such as you have shown will work to protect the wires. Just make sure it is cemented or fastened so it can't drop down in the area where the sector rotates.

Since you said the problem was only happening in park would you verify if the problem ever happens when pushing N. If so I would look at the red wire feeding the start relay. With the way the relay is positioned something could have dropped down and stopped where it might be intermittently shorting behind the relay terminal or maybe the terminal is bent and something might be able to touch the fender.

On the PB leaf contact, more than one have been broken or are weakened and right at the point of breaking. I don't know if there are any repro leaf contacts available but if anyone has done them it would probably be Mr Pushbutton. I don't recall seeing any posts from him recently so don't know if he is online any more or if he made any of the leaf repros as he did the finger repros. If not and no one knows of a better solution, there is a repair using a common subminiature micro switch to replace the leaf contacts but it is a bit more involved. You will need to fabricate and mount a bracket to hold the microswitch. The procedure was developed many years ago by somone in the PI club and might have been published in their magazine at some point. At any rate I am reluctant to post the instructions here. If you want to PM an email address I will forward a copy of the instructions.