Dry Oil Filter on 2F

[firemansFJ40]

This is my first post, and thought someone out there might have an answer. I have a 1980 FJ40, have had it for 18 years, it still has the origingal 2F engine. I was changing the oil today, when removing my oil filter it was dry. This has never happend before. The engine is running fine, no new noises or change in performance. I'm guessing something must be keeping the oil from circulating. Anyone have any ideas. Thanks all 40 lovers.

 

[FJforty]

Yikes..... Do not pass go, do not collect $200, pull the valve cover ASAP.
Dry, does it still look new like it is not in the circuit? Have you had the oil changed or you changed it?

 

[Poser]

This is my first post, and thought someone out there might have an answer. I have a 1980 FJ40, have had it for 18 years, it still has the origingal 2F engine. I was changing the oil today, when removing my oil filter it was dry. This has never happend before. The engine is running fine, no new noises or change in performance. I'm guessing something must be keeping the oil from circulating. Anyone have any ideas. Thanks all 40 lovers.

Dry?

As in no oil in it at all?

As in new and clean inside?


Before you changed the oil, when was the last time you had ran the truck?

 

[mcwinery]

I guess he is stuck on just one post.

 

[firemansFJ40]

Boy am I stupid or what. Shall I explain. I always change the oil myself. I have always used Amsoil synthetic. I last changed the oil about 9 months ago. I have put about 7K miles on the change. Last night I pulled the drain plug, my wife came and got me for dinner. I went inside, ate and came back out about 25 miutes later and pulled the oil filter. It looked like brand new, dry and never used. It concerned me big time. This is the time I posted my concern. Later in the evening, I called an old friend who knows a lot more about cars than yours truly. He advised to refill the motor with oil, crank it and see if oil flows out where the oil filter goes. Tonight I did that and ......well....... things are normal. Oil flowed. I guess the oil was just too clean for me to have seen it.
Anyway, thanks for the input. I've learned from this experience.
Cruiser Lover.

 

[FishNinJay]

Boy am I stupid or what. Shall I explain. I always change the oil myself. I have always used Amsoil synthetic. I last changed the oil about 9 months ago. I have put about 7K miles on the change. Last night I pulled the drain plug, my wife came and got me for dinner. I went inside, ate and came back out about 25 miutes later and pulled the oil filter. It looked like brand new, dry and never used. It concerned me big time. This is the time I posted my concern. Later in the evening, I called an old friend who knows a lot more about cars than yours truly. He advised to refill the motor with oil, crank it and see if oil flows out where the oil filter goes. Tonight I did that and ......well....... things are normal. Oil flowed. I guess the oil was just too clean for me to have seen it.
Anyway, thanks for the input. I've learned from this experience.
Cruiser Lover.

didn't oil dump out of filter when you removed it? I have an SBC, so maybe it's different. How does your oil filter screw in? My oil filter mounts so that even if I did the same thing, the filter unscrews and drops down with opening facing up. I could turn the filter over and dump out a canister full of oil.. I think? Maybe it's a 2F thing.. glad it worked out for ya.. that's a funny story.

 

[firemansFJ40]

The opening on my 2F faces down and must have drained out during the 30 minute dinner time. Now that I'm thinking about it I wonder if each time the engine is shut off will the oil drain from the filter, and if it does, will this cause any kind of long term problems of not getting quick oil circulation? I have always herd to fill the oil filter with oil prior to screwing it on the motor to avoid oil not circulating immediately. I have never done this on my FJ40 as it would drain out before I could install it. (make since). I guess if there were potential problems the Japanese would have thought through this. (I hope).
Thanks again.

 

[John McVicker]

The opening on my 2F faces down and must have drained out during the 30 minute dinner time. Now that I'm thinking about it I wonder if each time the engine is shut off will the oil drain from the filter, and if it does, will this cause any kind of long term problems of not getting quick oil circulation? I have always herd to fill the oil filter with oil prior to screwing it on the motor to avoid oil not circulating immediately. I have never done this on my FJ40 as it would drain out before I could install it. (make since). I guess if there were potential problems the Japanese would have thought through this. (I hope).
Thanks again.

My oil drains from the filter overnight & is 'empty' every time I X the oil...unless I run the engine a few mins. to warm up the oil.

Been this way since purchased new in '75.

John

 

[FJforty]

They make some filters that have a spring loaded flap that will not allow the oil to drain back. I will look into that, it does not make any since to allow all the oil to run out of the filter.

 

[firemansFJ40]

Obviously the 2F does not have a one way valve to keep the oil in the filter.

 

[FJforty]

I called Napa and they said their 2F( ford filter) gold series filters have the anti-backflow valve, not so on the standard filter. Oh man! Now I need to go pull my filter off just to see. I have noticed that my oil pressure is delayed by a good 10 seconds at the gauge.

 

[HvyJet]

Hey Fireman
Not to worry, the filter is mounted upside down and over the years-original owner of a 1978-learned that if you change it the next day the filter will be dry or rather you wont have a mess when you remove it.

I m your neighbor in Bedford......
Take care and be safe on the job.
Thanks

 

[Cougar72]

whoa - this concerns me a bit as well - as we all have heard ( thanks to those old SLICK 50 commercials in the late 70's ) that 70% of engine wear occurs at start up <wink> or does it??

But then I take a breath ( wooosaaaa) and realize that we all have 30 ish years on our engines and very few with less than 100k miles - and this is just now getting talked about?? Hrmmm possibly not as bas as it initially sounds?


Even still - I am gonn look into a non back flow filter - any chance the original equiptment toyota oil filter had an anti drain back?

and yes, as FJFORTY mentioned NAPA's gold filter does have a back flow preventer -( and the rest of their filters do not) THAT is my next filter! @ $6.30 each not bad - I wonder how I drain it into my oil recovery tank (screw driver and hammer I suspect)

CHEERS!!!

 

[FJforty]

I searched all over with no luck, could someone post a pic of the oil passage flow on a 2F. I found one for the 1F. It is a front view showning how the canister fills. I will get them posted.
Thanks

 

[FJforty]

So here is the F motor. Correct me if I'm wrong here. Oil pressure builds in the pump which has an internal pressure relief valve that pours the excess back into the pan. Heading up the tube the passage splits, one way is the filter the other engine bearings. The filter canister fills from the side and the outlet is at the bottom. There is a tube running up the center of the canister that has a small hole a couple inches down, this is the return from the canister and it kind of hard to see but it pours directly back into the pan.

Questions:
If the small hole in the tube plugs then you have no filter in the system?

The oil pumped to the bearings has no inline oil filter?

If the canister hole is too big (PO work)low oil pressure to the bearings could result?

 

[IDave]

So here is the F motor. Correct me if I'm wrong here. Oil pressure builds in the pump which has an internal pressure relief valve that pours the excess back into the pan. Heading up the tube the passage splits, one way is the filter the other engine bearings. The filter canister fills from the side and the outlet is at the bottom. There is a tube running up the center of the canister that has a small hole a couple inches down, this is the return from the canister and it kind of hard to see but it pours directly back into the pan.

Questions:
If the small hole in the tube plugs then you have no filter in the system?

The oil pumped to the bearings has no inline oil filter?

If the canister hole is too big (PO work)low oil pressure to the bearings could result?

1) or if the filter plugs, yeah, you have no filter in the system.

2) Right

3) your figure doesn't really show how the oil pressure regulator works. Yes, if the line to the oil filter was cut I'm sure the pressure to the bearings would drop. I'm not sure how much difference the size of the filter tube hole would make; obviously the resistance in the filter system effects the overall pressure and therefore the pressure to the bearings.

That's something you could experiment with!

 

[IDave]

Here's the circuit diagram for the F engine. There are two points of resistance, obviously. The nice thing about the F is that you do have a mechanism for adjusting the oil pressure in the system if you need to do so.

Not saying that the F oiling system is superior to the F 1.5 or 2F, but that is an aspect that could, I suppose, come in handy at some point under specified conditions.

As far as I can tell from my F 1.5 engine, there's no oil pressure adjustment other than to change the filter, pump or bearings and to clean the passages.

By the way, unless the 2F is different from the F1.5, the oil pressure sender is rear driver's side low on the block, same as the F. Nowhere near the head.

 

[FJforty]

Trying to find a picture of the 1.5F and the 2F oil system. Wondering if the 1.5 and 2F are different in terms of the oil to the bearings, specifically is there a filter inline to the bearings?

 

[Living in the Past]

I always like to change my oil warm and got tired of the mess the oil filter made when changing. On my 2Fs and the 3F in my FJ62. I now use a punch and poke a hole in the filter and let it drain. Then put a small piece of foilback tape oever the hole before I spin it off. I do like the idea of the anti-drain back valve. It doesn't make sense to have to fill the oil filter first before you start lubricating the engine evertime you start it. Just like the fuel system in the 3FE. The fuel pump doesn't start until it senses air flow. Would make more sense to let the pump prime the fuel system with the key on then shorten the starting time. My 62 sits for weeks at a time between using it.

 

[FJforty]

I would think that if you have oil in your filter then you are already buying filters with the back-flow valve. Napa doesn't have them on there cheapies but I think Fram and Motorcraft have them stock stuff. I'm guessing that the 2F filters all oil but not sure. If it doesn't then I want see what it would take to get there.