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> CHT sensor install, Made a tool
rwilner
post Mar 3 2011, 08:39 PM
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In case anyone has to replace their CHT sensor which is a PITA, you'll have to make some type of tool. I ground down a corner off a 3" extension, and attached a deep socket.

It's much easier to install and uninstall if you remove the decel valve and MPS.

Here's a picture of the extension and socket with the CHT ready to install. I attached the washer to the CHT sensor with a drop of superglue:

Attached Image
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nowlings
post Mar 3 2011, 08:44 PM
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QUOTE(rwilner @ Mar 3 2011, 06:39 PM) *

In case anyone has to replace their CHT sensor which is a PITA, you'll have to make some type of tool. I ground down a corner off a 3" extension, and attached a deep socket.

It's much easier to install and uninstall if you remove the decel valve and MPS.

Here's a picture of the extension and socket with the CHT ready to install. I attached the washer to the CHT sensor with a drop of superglue:

Attached Image

That is Slick! It's amazing, I never thought about grinding the corner of the extension. I've alway fenagled it by just using the deep well socket and using the wire with tension to guide the sensor to the hole. you have a cool tool there and now I'm going to make mine. I don't know about you, but I find myself replacing that sensor every couple of years.
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oldschool
post Mar 3 2011, 08:50 PM
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How do you know you need to replace the cht (IMG:style_emoticons/default/confused24.gif)
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rwilner
post Mar 3 2011, 08:58 PM
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QUOTE(oldschool @ Mar 3 2011, 09:50 PM) *

How do you know you need to replace the cht (IMG:style_emoticons/default/confused24.gif)


The PO soldered a 1/8w resistor to the old one, and the vibration caused it to snap. I had a NOS one from mark heard so I put that one in place of the old one instead of repairing the wire.
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rwilner
post Mar 3 2011, 09:00 PM
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QUOTE(nowlings @ Mar 3 2011, 09:44 PM) *

I don't know about you, but I find myself replacing that sensor every couple of years.


man I hope I don't have to do that -- the 017 part is a pretty rare beast for the 73 2.0L.
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saigon71
post Mar 3 2011, 09:37 PM
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Nice tool! What size is that socket? I will be crafting one up myself. Not to hijack, but I suspect I need a new CHT for my 1974 D-Jet and found these on Ebay. Price seems very reasonable. Are these legit?

http://cgi.ebay.com/ebaymotors/Porsche-914...sQ5fAccessories
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luskesq
post Mar 3 2011, 10:55 PM
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QUOTE(saigon71 @ Mar 3 2011, 07:37 PM) *

Nice tool! What size is that socket? I will be crafting one up myself. Not to hijack, but I suspect I need a new CHT for my 1974 D-Jet and found these on Ebay. Price seems very reasonable. Are these legit?

http://cgi.ebay.com/ebaymotors/Porsche-914...sQ5fAccessories

I believe 13 mm. When I did mine I took a cutting wheel and cut a groove wide enough for the wire to pass through into the corner of a 3" cheapie extension. That way it doesn't weaken the entire corner of the extension (although the're inexpensive) to much.

Keith
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jimkelly
post Mar 4 2011, 07:02 AM
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i added this invention to this thread...

Home made tools, Show us yours

http://www.914world.com/bbs2/index.php?showtopic=91491<br />
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rwilner
post Mar 4 2011, 04:02 PM
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QUOTE(saigon71 @ Mar 3 2011, 10:37 PM) *

Nice tool! What size is that socket?


It's a 13mm deep craftsman socket with a 3" extension from lowes.

QUOTE

I will be crafting one up myself. Not to hijack, but I suspect I need a new CHT for my 1974 D-Jet and found these on Ebay. Price seems very reasonable. Are these legit?

http://cgi.ebay.com/ebaymotors/Porsche-914...sQ5fAccessories


Mark Heard has some (914sixer), and he is legit. Send him a PM and he'll hook you up.
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rwilner
post Mar 4 2011, 04:03 PM
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QUOTE(jimkelly @ Mar 4 2011, 08:02 AM) *

i added this invetion to this thread...

Home made tools, Show us yours

http://www.914world.com/bbs2/index.php?showtopic=91491<br />


thanks Jim, great thread!
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Markl
post Mar 4 2011, 10:04 PM
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A 1/2" plumber's faucet wrench works fine - a couple of bucks at Ace. No grinding, no welding. Can also be used to tighten faucet valves.
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rd914
post Aug 30 2011, 02:48 PM
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QUOTE(Markl @ Mar 4 2011, 09:04 PM) *

A 1/2" plumber's faucet wrench works fine - a couple of bucks at Ace. No grinding, no welding. Can also be used to tighten faucet valves.


Can you post a pic of what it look like? Thanks.
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TheCabinetmaker
post Aug 30 2011, 04:05 PM
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Or,....... you could just stuff the wire in the deep socket and go.
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r_towle
post Aug 30 2011, 08:26 PM
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QUOTE(vsg914 @ Aug 30 2011, 06:05 PM) *

Or,....... you could just stuff the wire in the deep socket and go.

Zactly
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rwilner
post Sep 1 2011, 11:53 AM
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QUOTE(r_towle @ Aug 30 2011, 10:26 PM) *

QUOTE(vsg914 @ Aug 30 2011, 06:05 PM) *

Or,....... you could just stuff the wire in the deep socket and go.

Zactly


but then you don't get to grind anything
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