Wow, it has been a while since I have posted on here! I am getting the car freshened up for the June 28th Laguna Seca track day, and I found something I wanted to share with all of you, and ask a question:
So, for those who are interested in using this K-tuned oil pressure sensor adapter between the block and the oil pressure switch in its stock location, don't.
Here is why: the stock drain "plug", as I guess it is called, which is the 28mm massive bolt with a 1/8" BSPT center thread for the oil pressure switch, pictured below:
Does not have a flush surface at all, but rather a relief in the center and a raised perimeter. Since the K-tuned unit is expecting a flush surface to mate with, as in the stock K-series oil sending unit location, you can tighten it all you want, you will just end up spinning off three layers of BSPT threads in this 28mm bolt, as the jam nut is too wide to fit into the relief. It frustrates me that H guys on YT say the unit fits perfectly.
This is exactly what happened to me, and it was, of course, leaking quite a bit. So, I have a damaged 28mm drain "plug" and I need to source a new one. My question is this: you go on Majestic and see this chart:
Pick #32, which is still for sale, but it is called "Bolt, Drain Plug". Cross referencing an OBD-1 and OBD-2 H series, it is the same part number:
90001-PM3-003
Can anyone verify that this is the same part in the second picture above? The reason I quote "plug" is because it doesn't seem like much of a plug to me, but maybe I am misunderstanding something.
So, for those who are interested in using this K-tuned oil pressure sensor adapter between the block and the oil pressure switch in its stock location, don't.
Here is why: the stock drain "plug", as I guess it is called, which is the 28mm massive bolt with a 1/8" BSPT center thread for the oil pressure switch, pictured below:
Does not have a flush surface at all, but rather a relief in the center and a raised perimeter. Since the K-tuned unit is expecting a flush surface to mate with, as in the stock K-series oil sending unit location, you can tighten it all you want, you will just end up spinning off three layers of BSPT threads in this 28mm bolt, as the jam nut is too wide to fit into the relief. It frustrates me that H guys on YT say the unit fits perfectly.
This is exactly what happened to me, and it was, of course, leaking quite a bit. So, I have a damaged 28mm drain "plug" and I need to source a new one. My question is this: you go on Majestic and see this chart:
Pick #32, which is still for sale, but it is called "Bolt, Drain Plug". Cross referencing an OBD-1 and OBD-2 H series, it is the same part number:
90001-PM3-003
Can anyone verify that this is the same part in the second picture above? The reason I quote "plug" is because it doesn't seem like much of a plug to me, but maybe I am misunderstanding something.
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