Redlyne_mr2

So my car won't start, we've narrowed it down to a faulty speed sensor but guess what? The speed sensor is impossible to remove. We sprayed it with tons of fluid film and still nothing. The ref sensor came out with some prying but the speed sensor wont even move up, it will turn but wont come up. Anyone have any tricks or tips on how to remove this thing. The engine is in the car and its an 86 NA.
Thanks

Ryan

nine-44

pull up as far as possible, even if it's a micron. Hose it with WD-40 twist it and push it back in. This will help it work into the socket. repeat, this should get it.

Redlyne_mr2

Yeah thats What Zero10 was saying he did. This fluid film was 15 dollars a can and it sucks. Off to get some wd40 tomorrow I guess. Were both so paranoid of the top of the sensor snapping

nine-44

hmm, keep at it, they can be quite stubborn. Just don't hit it too hard, or at all really. The last thing you want is to snap the bracket off. Good Luck

pearldrum944

Doing this is a pain, we got mine to move a little, then the tops of the sensors broke in half. We had to like twist the mounting block out of there, then replace them.

2BWise

Just got done replacing the reference sensor Tuesday. I had a hell of a time trying to get the speed sensor out of the way as I was trying to remove the entire mounting bracket and was unsuccessful, but if you can spin the speed sensor out of the way you should be able to get a 6mm allen wrench in and remove the mounting bracket (you may need to remove the intake to get more room). Or what I ended up doing was wiggling the mounting bracket up and down and sticking screwdrivers underneath to try and push the sensor up thru the bracket.

BWise

2BWise

This may also help
https://rennlist.com/forums/924-931-944-951-968-forum/217738-what-s-the-trick-with-the-speed-ref-sensor-mount.html

Zero10

Greetings!
I was the one trying my best to get that stupid sesor out, but no luck.

Pretty much what we did was measured the output of the sensors. I only saw about ~0.8VAC on the speed sensor instead of the ~5.0VAC we should see. Prior to this, we had done a complete engine removal. Upon re-installation we properly gapped the sensors, and away we went. First thing I checked was the gapping of the sensors due to the weak signal, but there is no way that bracket had moved. It was IMPOSSIBLE to get the one bolt free without a cheater on the allen key. It wouldn't have budged on it's own. Since the signal was great before, and it wasn't just 'marginal' at this point, my gut says the sensor is bad. It passes the resistance check, but I think perhaps there has been some water contamination inside and has caused some inductance related problems, or something similar. I have some used sensors, so we took the one in the best condition, and accidentally swapped it in place of the reference sensor, so we are going to swap the old reference sensor with the speeed sensor.

So, there's the history, in an attempt to remove the reference sensor, I was able to get it to move up and down ~1/4 of an inch, and get a lot of twisting out of it, so after continued spraying and twisting/pulling it just let go and slid right out. On the speed sensor, I can only get a bit of twisting, no up/down movement. So I have asked Redlyne to continue spraying and twisting, hoping it will eventually free itself.

It is impossible to remove the bracket with the engine in, and with the bellhousing firmly attached. So I'm open to any suggestions... Perhaps with the bolts removed we could get enough twist-related movement to get better access to pry the sensor?...

Fishey

Are you talking about the crank sensor?

User 41221

I have posted this a couple of times, and swear by this... if you are stuck getting the ref sensors out and have one or both of the bolts that hold the bracket hang up, its a heck of a lot faster, easier and less frustrating to just break that bracket off and spend the $30 or so to replace it. Sounds crude, yes, but plenty of pro's also swear by this method.

Regards,

Redlyne_mr2

Parts are a hell of a lot harder to come by up here in Canada, thats the only problem.
Here is how I made it. Disconected the bracket with the intake on. Sprayed the hell out of it with wd40 and moved it around. It's still did not come loose. How do you guys pry on the sensor from underneath when the bracket sleeve is in the way?

Redlyne_mr2

2B wise, you mentioned you stuck a screwdriver under there. How did you get it under there? The sleever of the bracket seems to be in the way.

Zero10

Hmm, break the bracket. I might have a replacement, but it would be awfully difficult to get. It's on my burned 86 right now. The intake manifold is off, so it wouldn't be _that_ bad, and the sensors are out from it... As a last resort I will consider that, since a replacement may be available in rather short order. The thing is, I'm not 100% sure it's the problem. I'm a little leery to break the bracket and such then find out it's not the problem...