You probably hit a bump.:grin2:

 

Which way did you orient the switch ? I had mine mounted "vertical" at first, after it tripped twice, I made a horizontal mount. I can still trip it by hand with a good tap, our famous Pa potholes haven't.

 

Follow up:
You guys are right, thanks for that. I thought my engine work was related to the inertia switch and I didn't consider anything else. I was in a parking lot that has some bone jarring speed bumps so that's what did it.
On a related note - I understand most cars don't have this type of device and I can easily isolate it out of the fuel system by cutting the leads and shorting them together. I plan to do that.
On a another related note - Speed potholes slow me down a lot more that speed bumps!

 

Follow up:
You guys are right, thanks for that. I thought my engine work was related to the inertia switch and I didn't consider anything else. I was in a parking lot that has some bone jarring speed bumps so that's what did it.
On a related note - I understand most cars don't have this type of device and I can easily isolate it out of the fuel system by cutting the leads and shorting them together. I plan to do that.
On a another related note - Speed potholes slow me down a lot more that speed bumps!

DONT. If you should ever be in an accident, the fuel pump could continue to run, causing a serious fire hazard. All fuel injected cars have inertia switches.

 

Agreed also. You want a working inertia switch when running an electric pump. Mount it solidly and with the button pointing up.

Jeff

 

Jeff,

I have a carb and also have the enertia switch in the Ron Francis harness, so do I have to use it or eliminate it? Oh, I have a mechanical fuel pump also not an electric one

Thanks

BigUgly

 

No inertia switch needed with a mechanical pump---engine quits=pump quits.

Jeff

 

I googled this issue and found a ton of complaints about the switch, but none touting its well intentioned purpose. That said, I respect all the responses and will take the advise and leave it be.

 

I don't know about a "ton of complaints"; I have not personally found nor have I heard reports of them being problematic. I mounted mine, an OEM Ford part, on the 2X2 tube behind the dash where I can reach it when belted in. I can give the chassis a solid hit with a deadblow hammer and trip it yet I have never had it trip after hitting some bone jarring bumps or potholes on the street as well as several off track excursions into the weeds. In my own case it is doing exactly what it was designed to do.

Jeff

 

No he does not imply that they aren't on later cars. He ask if anyone else knows, as he doesn't.
So you ask for advise, but don't want to use it after its given?

 

Stupid Question.How do you 'reset' the switch ? Is there any sequence ?

 

The switch has a red push button, one push and it resets

 

Jeff,

Thanks for the reply. Also, you don't know how many times you have responded to someone's question and helped resolve their problem while at the same time I also could use that same advice and it has saved me from doing something over again.

I just want to say, as far as I'm concerned, when Jeff Kleiner talks, I listen.

Thanks,

BigUgly