1986 240 DL Prioritizing repairs

[lummert]

It's easy to replace the temp sensor on my 88 760 Turbo. Actually it seems harder to unplug the connector. I use a 4" long extension, 3/8" ratchet, and deep 19 mm or 3/4" socket. It's easier to install the replacement sensor by placing a 3/4" hex nut in the socket, otherwise the sensor won't stick out of the socket far enough.

[mhgreen]

I have the ratchet, 19mm deep socket, and a 6" extension.

[mhgreen]

Also ipd has two different sensors that are different colors. They said I have to match the color with mine, as if there is no way to be sure which one I need without checking mine? Does that sound right?

[lummert]

White or blue. Not really much difference in the specifications.

[mhgreen]

Nice you're making progress.

For the temperature sensor, I use a 3/8 ratchet and an assortment of wobble extensions with a u-joint adapter, and a deep socket (17 or 19, I think?). Facing the intake manifold, youwill have to reach one hand under the left side to guide the mish-mash socket assembly directly onto the sensor from the right.

Confusing, but it can be done.

What about the flame trap? It seems that the trap would block access from the left side

[mhgreen]

Also replacing the oxygen sensor (3 wire, 2 connectors). I have the ratchet attachment. I assume this is a typical pull and replace job?

[mtd240]

What about the flame trap? It seems that the trap would block access from the left side

Ah right - I had to unclip the wire harness clamp from the top of the breather box. Should fit fine, unless you have something different on your car (shouldn't - mine is a '90).


For the O2 sensor, it is generally a straightforward job. Don't use an O2 sensor socket to remove it - you will strip the hex on the sensor if it is rusted in place (always is...). Cut off the old sensor's wire, then use a regular deep socket (22mm or 7/8").

[mhgreen]

I am picking up the temp sensor today at iPd - - We'll see if I can figure out the angles and such. I will likely work on it later today.


Thanks for the heads up on the o2 sensor socket - I was planning on using one. I wondered why I couldn't just cut the wire, but that answers that.

[mhgreen]

UPDATE:

- engine temperature sensor replaced

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

I used a 3/8" ratchet, a universal joint attachment, and a 19mm deep socket.

1) I removed the distributor cap and moved it out of the way

2) I reached under the right side (if your facing the intake manifold from the driver side of the car) and disconnected the temp sensor connector with my hand.

3) From the right side I put the 19mm socket on the sensor and made sure it was the right fit.

4) With the 3/8" ratchet and universal joint attached in my left hand, I maneuvered the tool under the left side of the intake manifold.

5) Using my right hand under the right side of the manifold I guided the UJ into the socket. I held the ratchet perpendicular to the ground and while holding the socket in place with my left hand, turned the ratchet with my right hand.

6) Sensor came loose, and I unscrewed it the rest of the way with my hand.

7) Reversed this process for install of new Bosch sensor.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Thank you everyone for your guidance! Much appreciated.

[mhgreen]

... then use a regular deep socket (22mm or 7/8").

I could not find a 22mm deep socket that was sold individually. I purchased a 7/8", but I am confused how this could be "either or". There is a difference is size, so how could both work?