Pressure relief body socket size

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dpmellish

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Jul 6, 2007
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Hello and happy new year to all, Could someone please tell me the socket size for the pressure relief body that screws into the the timing cover...Item: P/RELIEF VALVE BODY NMT 2059A
Part Number: 066195

Thank you in advance!!!
 
I recently pulled mine and was able to find a metric wrench to fit it...somewhere in the 21mm range if I recall. My cover is sitting in the shop where I work so that I can polish it. If you don't get an answer by tomorrow I will try the wrenches again and narrow it down.

Russ
 
I measured one I have on the bench. Looks like 11/16 BS - 5/8W or just between SAE 1-1/8 (sloppy) and 1-1/16 (no go). Looking at a conversion chart, it looks like 28MM would work. I have a 27mm, and it was very close. Lowes and Craftsman have those, if you want a lower priced alternative.
 
I can confirm, 28mm fits the body quite well. I used a 24mm on the cap. It was a bit sloppier than I prefer but it did a good job.
Russ
 
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