YepEngine out
Not the wire but the switch itself can leak around the where the plastic meets the metal part. The other thing to check in that area is the case where the pressure switch screws into. This can split if the switch is screwed in too much because of the tapered thread. As this is on the main oil gallery it can hose out quite quickly if it is bad.
What did you do it up with a 1/2” impact gun ? LolIf the oil pressure switch is overtightened it can cause the case to split and leak oil. It's hard to trace this leak unless you have someone watching the engine as you rev it.
In the worst case it can crack the case half all the way round to the bottom, making the case scrap.
I've learnt this the hard way.
Yeah that would do it, I only give them the tiniest nip up. If it leaks I nip it a fraction more.
No, I think it was overtightened during the original build and the many thousands of heat cycles just stressed the case and it split.
Impact gun. If you don't have one you can get a cheap electric one from Machine Mart that will push several hundred lb/ft.
I use a 3/4" drive breaker bar and 36mm socket. I also have a 3/4" drive torque wrench to do it back up. IF you are going to use the original gland nut for the flywheel, mark the flywheel and gland nut so you can tighten it to the same position. This will save you having to use a torque wrench to get somewhere near the correct tightening torque. Also, don't forget to grease the bearing inside the gland nut before fitting the back to the gearbox.
