how to prime an ofh?

[DeadlyScone]

I just bought a used oil filter housing(bracket) and i need to clean it still. I was wondering what is the best way to clean it and should i prime it and if so how and with what?

- thanks.

 

[@TDC]

I just bought a used oil filter housing(bracket) and i need to clean it still. I was wondering what is the best way to clean it and should i prime it and if so how and with what?

- thanks.

Well what's the situation with your car? Is it a fresh rebuild? Has it been running? Original motor?

I would definitely clean out the entire housing with some carb or brake cleaner and compressed air. You never know what happened with the previous owner.

 

[DeadlyScone]

just cracked the housing on mine and needed to replace it. Should i prime it?

 

[Auto RS T]

I'd just fill the oil filter with oil before you put it on and call it a day. After you clean it out of course.

If you want to prime it still, you can try this method.

http://www.dsmtuners.com/forums/art...pump-timing-components-already-installed.html

 

[DeadlyScone]

i'll be putting the old filter on since its only been on for like 500mi. So just top it off screw it on and that will be good enough eh?

 

[MiroDSM]

I'd just fill the oil filter with oil before you put it on and call it a day. After you clean it out of course.

If you want to prime it still, you can try this method.

http://www.dsmtuners.com/forums/art...pump-timing-components-already-installed.html

I think he meant primer the ofh like paint wise? And as far as using the same filter,
Why? Just put a new one what if something from the cracked one got in there. They are only a few bucks

 

[DeadlyScone]

I did not mean paint.

 

[WES_393]

To prime the oil filter housing I would suggest removing the MPI fuse (or injector wires) and cranking the engine a few times for about 5 seconds each time. That should get some oil into the filter and housing. However, the oil filter housing is probably just as empty as when you remove the filter for a regular oil change.

As for reusing the filter, I'd say it's okay so long as it's a good brand filter. I personally use K&N so that I can feel comfortable reusing them and won't have to pull the down pipe every 3k miles. But there's no sense in reusing a $5 filter.

 

[NHerron]

You don't need to prime it. Just clean it up and hit the key, oil pressure builds in less than 20 seconds. Everyday when you shut the car off oil drains back down and ends up having to prime itself everytime. So in this case, it's not really priming as much as it is just coating parts with a film of oil

 

[Auto RS T]

i'll be putting the old filter on since its only been on for like 500mi. So just top it off screw it on and that will be good enough eh?

Yep! Good enough.

 

[curt-s]

You don't need to prime it. Just clean it up and hit the key, oil pressure builds in less than 20 seconds. Everyday when you shut the car off oil drains back down and ends up having to prime itself everytime. So in this case, it's not really priming as much as it is just coating parts with a film of oil

I'd be worried if oil pressure didn't build in 3 seconds. Anything more than that and I'd be doing some investigative work.


Essentially, if you're cleaning out the OFH thoroughly, you don't need to prime it. It's just a series of tubes with a pressure relief valve. I've cleaned mine about 3 times over the course of a rebuild and some pressure relief port work. I just filled the inside with Simple Green, swashed it around, and blew it out with a water hose at high pressure (not a pressure washer). I then used compressed air to clear out the passages. If I found any foreign particles anywhere, I repeated the process over until I didn't even get foamy oil.

I then put a bit of oil in the housing and spun it around to get it to coat all the steel components. After that, I drained the oil by gravity.

Last thing I would do is make sure the pressure relief valve and spring has a coating of oil in it. The bore for the valve WILL rust. It's not aluminum like the rest of the housing.

 

[NHerron]

Yeah I guess 20sec is a bit much, more like less than 10. When we do changes on the Chevy trucks here it's probably on average 5-7 seconds. Then on the big rig semis it's probably 7-10.