Flywheel sensors strong enough to press out?

[IdahoDoug]

One of my sensors would not come out, so I had to pull the aluminum bracket that holds them. They're on the bench and I need to pull it out. Are the metal business ends strong enough for me to press them out on a press? I don't want to tap on them for fear of damage. Thanks.

Doug

[v2rocket_aka944]

try some penetrating oil and then go easy on the press...
just watch the sensors as you work on them, youll know if youre trying too hard.

though really, if you've got the bracket out, you may as well just replace the sensors.

[944 Ecology]

Part of my business was recycling, among other things, flywheel sensors. After 20 years, I had about a 50 percent success rate.

Plan on buying new sensors. Don't break the bracket. Those are much more expensive.

One thing I did do on all my own cars, though, was to enlarge the hole that the sensor fits in. There is no earthly reason that they have to be a tight fit. Also, use a little 3M Silicone Paste around the sensor body to keep the corrosion down.

[IdahoDoug]

Thanks - great input. They're not crazy expensive.

Doug

[IdahoDoug]

Ordered these and will adjust the fit to relieve the tight fit in the bracket if they prove as tight as my originals. Despite my low miles (59k), there seems to be a lot of electrolytic bonding going on in the clutch housing. Clutch fork pin was a 2 day nightmare, all the fasteners came out of the housing grudgingly, and had white deposits characteristic of dissimilar metal issues. I will clean the engine bay grounds to ensure there is not some stray low level current. That, or Dad drove this thing into a pond and never told me about it!!

[v2rocket_aka944]

slightly opening up the bracket holes is a good idea!

[IdahoDoug]

Seriously. It is. I take it others have faced this issue. You can't really reef on it because the top of the sensor is plastic. And you can't really get to it with tools unless you spend an hour removing other crap around it. And I'm sure I will own this car long enough to do another clutch, so by then I will be feebly weak in the hands. Good to have a plan......

So, anybody have a suggestion as to opening up the mount holes a bit? Do they make a cylinder hone for little teeny weeny engines like model aircraft? Heh. j/k. Seriously - anyone know of a way? Or is it just a wooden dowel with garnet paper wrapped around it and a dreamy look on my face.......

[v2rocket_aka944]

were i doing it, i'd just find the next size up drill bit and go to town.
the ref sensor body is what, 15mm? i havent looked at one in years.
if so i'd probably just go to 5/8", the sensor will still sit in the same place because of the mounting bolt hole.

[IdahoDoug]

I suspect its OK and not as precise as I'm worried about, but if there is slack can engine vibration cause the sensor to bounce around slightly and mess up readings? I'd want to stay with a gentle slip fit vs ability to move. I don't know what kind of sensor it is - just a magnet type sensor or what. Like on a bicycle with a wheel sensor and passing magnet there is enormous room for error. Dunno. With the bracket out, I have some easy options, I guess.