Small leak at oil pressure sender

[Mr. Close Reach]

I'm noticing a small leak (less than a drip a minute, I think) at the oil pressure sender, just behind the fly wheel on the carb side. Has anyone had to troubleshoot this before? Any tips before I climb into the coveralls would be appreciated.

[Dave Neptune]

Close, is it the sender leaking or a threaded fitting? If it is the sender it will need to be replaced. However if it is the senders threads or a pipe fitting thread you should be able to just tighten it a bit.

Dave Neptune

[sastanley]

Mr. CR. to add to Dave's comments...if I have my memory together correctly, Don Moyer reported that Universal at some point used galvanized 1/8" pipe nipples in that area and sometimes they fail. A slight tightening may fix it, but if it is corroded, galvanized would just crumble when you tighten it. Have a brass nipple on hand to replace just in case.

[Mr. Close Reach]

Thanks guys. It is the ISSPRO sender sold on the Moyer site, so definitely not original. I will have to look more closely to see if it is leaking at the sender or the threads.