coolant temperature sensor to big?

[wobbie]

So i took out my sensor from the m20 and compared it to the m50 and its bigger. Anyone know why? This is the closest to brown colored one i could find on the engine near the intake. m20 left m50 right

[justin_l_]

You pull the wrong sensor out of the m50? You want the one furthest from the front of the motor.

[cabin]

Re-tap the brown sensor to the correct thread size, and you're good to go. That's what I did and it works great.

[samiam3356]

re-tap the brown sensor to the correct thread size, and you're good to go. That's what i did and it works great.

this

[36brua]

Re-tap the brown sensor to the correct thread size, and you're good to go. That's what I did and it works great.

drill and tap existing hole for larger thread size ? not modify sensor itself noobbb here

[UDelaware30]

drill and tap existing hole for larger thread size ? not modify sensor itself noobbb here

better be careful drilling into the head!

[wobbie]

You pull the wrong sensor out of the m50? You want the one furthest from the front of the motor.

That would be why i pulled the one closest cause i thought it was the blue one that came out. The other one is black.

[Adrian_Visser]

It is easier to turn down the sensor a bit and re-thread it to the correct size with a die than to drill out your cylinder head, drilling the cylinder head also introduces swarf into the coolant passages which can't e a good thing.

Be careful not to over torque the sensor after re-threading it, you neck it down a fair bit so it definitely isn't as strong as it would have been.

[36brua]

It is easier to turn down the sensor a bit and re-thread it to the correct size with a die than to drill out your cylinder head, drilling the cylinder head also introduces swarf into the coolant passages which can't e a good thing.

Be careful not to over torque the sensor after re-threading it, you neck it down a fair bit so it definitely isn't as strong as it would have been.

That answered my earlier question thnx !

[wobbie]

It was the wrong sensor i pulled out, problem solved thanks