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Oil pressure sending unit https://slantsix.org/forum/viewtopic.php?t=45311 |
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Author: | usdart [ Tue Jun 14, 2011 4:27 pm ] |
Post subject: | Oil pressure sending unit |
Need the location to install the sender for the idiot light. I looked at the pump area and the only thing there is the cap for the spring. Anyone have a picture of the possible locations? It looks like a 1/4 MPT acess is needed for the sender. It is a new engine and the installer did not replace it. |
Author: | SlantSixDan [ Tue Jun 14, 2011 5:31 pm ] |
Post subject: | |
The sender gets threaded into the rear of the oil pump, just aft of and below the filter mounting pad. You will find a threaded port there, with or without a pipe plug in it. |
Author: | usdart [ Tue Jun 14, 2011 5:50 pm ] |
Post subject: | Sedor unit |
Thanks Dan! There IS a plug there, but, it looks like it is larger than the sendor 1/4 mpt. Or, at lease the head of ot is about a 3/4". |
Author: | ceej [ Tue Jun 14, 2011 6:03 pm ] |
Post subject: | |
The sender should be 3/8" MPT. IIRC. CJ |
Author: | SlantSixDan [ Tue Jun 14, 2011 6:16 pm ] |
Post subject: | |
There have been at least two different sizes of oil pressure sender threads -- 1/8" NPT and 3/8" NPT -- but the oil pump threads (female) are all the same. Reducer bushings were used in some years to adapt the smaller-thread senders. No idea why Chrysler would needlessly increase parts count like this; all I can imagine is that they got such a screamin' deal on smaller-thread senders that they could add the reducer bushing and still see a savings. More detail here , and remember that the nominal sizes of NPT make them sound a lot smaller than they actually are. |
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