[Cloud9...68]

I need to find something to tap into for my oil temperature gauge's sender, and at first glance, this unused plug in the drain oil pan seems perfect:



   



   



But on Lindsey Racing's web site, it implies that this location will provide false temperature readings, although their wording is confusing - it looks like he's saying this happens in the case of a turbo engine. It sits low in the pan, but not quite as low as the main drain plug, but it looks low enough that would be constantly immersed in oil. Lindsey sells a drain plug that's tapped to accept an oil temp sending unit, which is fine, but I'm not crazy about having to unscrew the temp sender every time I change the oil, so this unused turbo oil drain banjo bolt looks like a very good candidate. Thoughts? Thanks.

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[Eric_K]

It would be a fine place for the sensor on a N/A car. The Lindsey site is talking about false readings if you measured temp there on a turbo car. On a turbo car, a large banjo fitting is there returning oil that has just gone thru the red hot turbo.



The sensor in the main drain plug is not an issue either. You don't need to unscrew the sensor to change the oil. Just unplug the wire lead and unscrew as normal.

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[Cloud9...68]

Thanks, Eric. After I re-read the description on Lindsey's site, I realized that their concern was only for turbo cars, for the reason you state. The fact that they refer to it as a banjo bolt, as opposed to a plug, should have been a tip-off. I'm having a machine shop tap the plug for the sender today. I understand that the drain plug would also be a good location, but not having to deal with the wire lead at each oil change slightly tips the scales in favor of the turbo return line plug.



By the way, does anybody know if this second threaded hole is common on 968 oil pans? Or do N/A cars like the 968 normally come with only a single threaded hole for the drain plug? Thanks.

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[JWahlsten]

I cross referenced the parts and confirmed it's the same part for the 944S2. I know the part number for the 944 N/As and the 951s was the same, but the 951s had the fitting tapped. I wonder if it was just cheaper to tap them all for the 968??? Doesn't make sense to me with only a couple of turbos out there, but who knows what the plan was? Oh and all of the PET descriptions show the plug.



Both of my 968s had the plug. One was a 93 and the other a late 94...

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[Eric_K]

My 94 968 engine does not have the plug, The hole was never drilled.



The 89 2.7 944 engine I have does have the plug.



My guess is it was probably just done as a carry over until they finally figured out it would save a few bucks to not do this unnecessary step.

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[Cloud9...68]

That would make sense. Mine's a 92, so the fact that it has the plug shouldn't be surprising. I'm glad it does, because it make an ideal location for the oil temp sender. Getting it off was a bear, though - that sucker was tight!

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[flash]

i had a sender in the drain plug. the wire came off easily with a slip on connector. the sender stayed in the plug and both came out together.

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[KRAG50]

I added a magnetic adapter, from Automotion.com, not so much for the Magnet but to have two ports under the oil filter. I wanted to add oil temperature, I never did, but might in the future. I tried to get a picture, but it's buried to deep in the engine compartment. Here is the link.



http://www.automotion.com/oil-filter-mag...-1995.html

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