What size hole for knock sensor/coolant temp sensor?
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,167
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From: What did the 5 fingers say to the face? SLAP!!
What size hole for knock sensor/coolant temp sensor?
I'm having my heads drilled and tapped for the coolant temp sensor and knock sensor. Are they both 3/8"? I trust the head shop to do it right, I just want to make sure there's nothing unusual that I need to tell them first before they do the surgery. Thanks
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
Its not the knock sensor, though the driver's side head does have a sensor with the same type connector as a knock sensor.
The passenger side is the coolant temp "switch", I am not sure what the other sensor is right now, nor do I know the size.
As suggested above give the guy the piece to go in, I am pretty sure it is 3/8 npt too though.
The passenger side is the coolant temp "switch", I am not sure what the other sensor is right now, nor do I know the size.
As suggested above give the guy the piece to go in, I am pretty sure it is 3/8 npt too though.
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 2,167
Likes: 0
From: What did the 5 fingers say to the face? SLAP!!
Originally Posted by USAsOnlyWay
Its not the knock sensor, though the driver's side head does have a sensor with the same type connector as a knock sensor.
It seemed strange to have a knock sensor in a head, but you're right. The connector looks exactly like the connector for a KS.
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Verdad Gallardo
Race Director
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From: The Top of Utah
For 1986, the left head, between the #1 and #3 spark plugs, takes the axillary fan switch. The right head, in the same hole, which is between the #6 and #8 spark plugs, when you swap sides, takes the sending unit for the instrument panel temperature gauge. The knock sensor goes into the block, water drain hole, just above the pan rail, on the right side of the engine, just forward of the starter.
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