I was cleaning up left over parts from my engine rebuild and took a look at the front cover to see how the OMP was supplied oil.


Looks like it relies solely on oil getting flung off the timing chain and pulled through this tiny port. really?



the other smaller port looks to be for the OMP drive shaft lubrication.


It looks like one could easily (with the cover off) drill and tap the port passage for a fitting and run off an external supply of oil. The existing inlet will need to be plugged of course. It looks like just enough room to route a line just under the t-stat housing and behind the cover to the passage. Would be a hell of alot cheaper than buying an adapter......if it is already apart that is.




Just a thought....

 

I don't think you understand how the oil metering system works.

 

Well, enlighten me!

To me it just looks like the opm shaft is driven off the crank gear and controlled by the ECM. the omp pulls oil from inside the cover and pumps it to the nozzles on the rotor housings. Unless it's getting an oil supply from some other source, what am I missing?

I looked at the cover again. It does appear to have a passage from the main oil passages. So it is probably supplied oil pressure from the main oil pump and the two small ports or for bleedoff.

So now I'm confused at how the OMP external adapters will work. since it blocks off the factory port and uses a non-pressurized oil source.

 

The oil metering pump is a pump. I suggest reading some of the more informative threads on the subject before you try and wing it at engineering.

 

wow, how difficult would it have been to just say it uses oil supplied from the engines oil pump.

It's not rocket science. it is as easy as blocking off the original oil supply feed and adding an external feed. No matter how you do it, it's the same result.

I've worked on cars long enough that I could teach some "engineers" a thing or two. :P

Winging it isn't what I was doing...looking for an alternate option would be more correct.

Thanks anyway

 

Yeah man it's super easy. Let us know when the hawcer adapter comes to market.

 

Wait... what?
The Sohn adapter blocks off flow of engine oil to the OMP and relies on a supply of oil from another reservoir that you have to figure out. So that you don't have to burn engine oil and can burn something better instead.

Why are we drilling oil passages to get oil out of the engine and then back.. to the OMP....?

 

Exactly, I am just testing the water to see if the same thing can be accomplished without the adapter.

not drilling oil passages to get oil out. drilling and tapping it to add a nipple for an external oil source. The existing port to the OMP can be threaded and plugged to close off the original oil supply. I modified a spare 1/8" plug tap so I could thread deep enough to allow enough space for the nipple to go into the passage. Here is a crappy pic, but you can see the brass plug threaded deep into the passage....blocking off oil flow from the engine to the OMP, but the two small internal ports will still be open allowing flow of engine oil to the timing chain area.



External oil will be piped to a nipple that will flow directly into the passage behind the brass plug and feed the OMP through the factory passage...No adapter needed.

Like I said ,just an experiment...I'm not out anything except a spare timing cover...woopie.

 

Here....Done! Cost about 3 bucks. I used a 5/16" nipple with 1/8"pipe thread.

Just need a 90deg hose to keep from pinching it closed.

for what it's worth....