I just received these from the guy I trans swapped with. Figured they're worth the share so people know what to look at in cheap replacement - this has a 2014 manufacturing date printed on whatever brand it is. His PO swapped it.
You can test for this without even pulling the OPDA by removing the plastic cover and pulling up on the plate. If it moves more than maybe 1/16" you know it's worth pulling to check.
It appears this is a dorman OPDA. One of the stickers: 689-201
View attachment 348650
View attachment 348651
View attachment 348652
I'd be worried about what's in all the bearings and such, but this is what came out from the oil pan. I don't think that housing is magnetic either, so no way to catch the nuggets aside from a few early oil changes and a prayer.
View attachment 349133
What we are seeing here is a either the reluctor wheel assembly has worn into the top OPDA housing where it sets against the top bushing or the reluctor wheel has slipped on the shaft. Thus allowing to much gap at the bottom of the OPDA housing thrust bearing and the gear, the thrust bearing then dislodged and got chewed up.For those that may not have the same spatial assessment skills as others, the amount of wear that the drive gear caused on the bottom of the housing is just slightly less than what it would take to disengage the lower end from the oil pump. Had it kept going much more, he likely would have smoked the engine due to lack of oil pressure.
What we are seeing here is a either the reluctor wheel assembly has worn into the top OPDA housing where it sets against the top bushing or the reluctor wheel has slipped on the shaft. Thus allowing to much gap at the bottom of the OPDA housing thrust bearing and the gear, the thrust bearing then dislodged and got chewed up.
Since the lower bushing of the OPDA is flush with the bottom of the housing the gear was then riding against the bushing once the thrust bearing was gone. There was no danger of losing oil pressure.
The real issue is what caused the OPDA shaft to drop down causing the failure. Could you show us pictures of the bottom of the reluctor wheel?
Thanks
Does anyone know if the oil pump can be turned manually from the OPDA shaft opening?
And I don’t.
Does anyone know if the oil pump can be turned manually from the OPDA shaft opening? After replacing my camshaft I’m trying to get the new OPDA to align correctly.
Yes. Use a flat head.
Yes. Use a flat head.
Thank you @Chasitek
I hoped that was the answer. My TJ is a ways from here and I’m trying to source information before I get back to it.
I've never been able to make a V-8 work for that.
But have you tried a L 6 , or even a L 4 in a pinch ?
Don't have any flat head versions of those around. I only have access to the flat head V8's.
Well , I hoped you might have had a hurricane or super hurricane lying around in Jeep world.
Hey, Merry Christmas to you and your wife!