91 302 wrong oil filler cap

[emedlin]

Hello All
I was just checking my engine a 1992 crown vic 302 some more and the oil filler cap threads are too small, there is nothing touching as the one i have too easy to pull out it just pulls up with out touching the inside of my filler tube which has a single ridge about a 1/2 inch down but no threads, this is a picture of a oil filler cap i found on the web but it looks just like mine, which has a number 87 on the inside, Any thoughts on what kind I need Thanks for any help!!

[emedlin]

Hello All
I have a ,i believe a 1991 crown vic 302 engine in my 1990 lariat and i find that the oil filler cap is too small, it is threaded and my filler tube has no threads, it is nowhere the right size and I now believe the right type, does anyone identify this oil filler type and maybe what year engine the valve cover is from, Here is some pictures of my problem. Thanks for helping me find out what cap or plug i need

oil_filler_side_view



oil filler tube_and_too_small_cap



oil filler_tube_top

[emedlin]

Hello all
I have posted some pictures of my oil filler pipe and the too small cap on this site but after 70 views and no one has replied , so i am trying to get some reply even a negative one, has anyone even seen a oil filler pipe like this on any ford engine ever and how was the pipe closed with a plug or cap, as i am not sure as to what engine i have in this truck maybe you could tell me what it is not, just a simple reply such as not a ? motor, my motor has 5.0 written on the top of the fuel injector,

thanks for any reply
pictures of oil filler tube here
viewtopic.php?f=21&t=112649

[Webmaster]

Hi, I merged your two threads on the oil filler cap into one thread, let's keep the discussion in one place.

I'm not totally sure what you want to know but looking at where the oil cap goes, it does take a threaded style cap. Have you tried hitting up a junkyard, dealer, or auto parts store looking for a 91/92 CV cap? Are you 100% sure the engine is from a 91/92 CV?

[emedlin]

hello Webmaster
No I was just told that it was but i now know the autolite 25 plug is too short it needs a longer plug but same thread, I may have the e6 heads, i think and i am searching all over the web for a cap that might fit this large hole, i read if i get the wrong one i may have wrong metered air and run the chance of a lean gas condition.

Some work has been done to this engine i believe as it has tube exhaust headers and i know that is not stock.
I am recovering from a spinal cord injury and have lot of problems getting around is why i need to ask so many question about this truck and engine, it has been 5 years since my fall but can now drive an automatic right leg is good now but left leg still needs a lot more PT to be able to press a clutch:)) thank you for your reply Ed

[Webmaster]

I think you need to properly ID that engine. Look for a casting/stamping number, I'm not sure where but that should tell you at least what year engine you have.

[1989150]

1990 f150 302 shot

https://memimage.cardomain.com/ride_ima ... _large.jpg

1990 CV 302

https://memimage.cardomain.com/ride_ima ... _large.jpg
Note difference in the intakes.

86-91 should be the same on the crown vic.

[emedlin]

thank you 1989150
I have the same f150 1990 302 intake and my fan belt tightener is the same also
I am now thinking that i have a truck engine but I still have the heads difference with needing longer plugs I have some photos of my engine that might help with finding what engine I have.
The throttle



some_left_side_control



right_side_hoses



alternator



drivers_side_plugs



intakes

[1989150]

I forgot what mine looked like.

But besides pulling the heads off too check casting numbers on them you can look at the build date on your motor (about start, 8 digits like xxxx-xxxx and then check the build day and month on the door of your truck.

[emedlin]

Thanks 1989150
I know my build date is 8th month of 1989 I found that out when the front brake hose driver side did not fit had to get a f150 1989 one and it fit just fine.
I will try to get under the truck in the next few days and photo and look around the starter for some numbers, I want to get a picture of the transmission oil pan shape and bolt pattern to ID it
I did count the valve cover bolts and mine just has 6 in each cover three top three bottom and has that oil filler pipe on the drivers side
I have checking my notes of what i was told and as best I can find i was told this engine was from a 1992 crown vic ltd 302 I checked and they did not make a 1992 the crown vic was discontinued after 1991, so think I have a 1991 that is where i found that the e6 heads used longer spark plugs
This has been a problem not knowing Ford Truck at all, I have the two manuals haynes and clinton for the 1990 but as I don,t get around so well I am playing catch up trying to fix some things,
i have replaced fuel pumps, cleaned both fuel tanks, wiper switch, wiper motor front brake hoses, one brake caliper, set of tires, have to get a spare tire and rim, key lock cylinder,tailgate handle, new door lock cylinders with keys. and have a new ignition switch on the way, trying to fix the no power to wipers when the truck is running, also need a oil filler plug or a cap, need to know do I need to seal it air tight or should I have a breather cap on the oil filler pipe. I worry about a lean fuel problem
If anyone knows the answer to that oil cap or plug question i sure would like a reply, thanks Ed

i

[kg5ie]

I checked and they did not make a 1992 the crown vic was discontinued after 1991, so think I have a 1991 that is where i found that the e6 heads used longer spark plugs


i

Didn't they build Crown Vic's from 91 - 2011? Models were 92 - 2012. Now sure where you read they stopped in 91.

[emedlin]

Thanks Kg5sie
Yes I stand corrected but in 1992 they dropped the LTD name and also the 5.0 and 5.8 engines and went to the overhead-cam, fuel-injected 4.6 L Modular engine and that is why I believe if they think the motor came from a 1992 crown vic they were wrong by the model year and this would be then be a 1991 as I think the engine is a 5.0 as Ford dropped the e6 heads which uses the longer spark plugs from the f150 Ford trucks after 1986 but kept using them on their 5.0 cars for a few more years. I believe they went to the e7 heads in the f150's
Do you know what kind of oil filler cap or plug is used on the 5.0 1991 engines I look it on line parts for 1990 f150 and the 1991 crown vic and get a Stant Cap Oil Filler Part No. 10081 which is what i have on my engine but it is too small so i am stumped , so am just asking everyone this question
Thanks Ed

[Steve83]

Yes, the '92-93 CV/GM & probably LTC used the new 4.6L modular engine, but a very rare block casting with a smallblock bellhousing pattern which could be bolted up to a smallblock truck trans. '94-up 4.6Ls have the standard modular bellhousing pattern.

...but that's all irrelevant.

That #87 cap is wrong; you need a 710 cap. (JOKE!!!) This is the style that should fit that neck:



They should be VERY common in junkyards.

[emedlin]

Thanks Steve83
I looked up some model numbers MOTORCRAFT EC-743 Oil Filler Cap for the one like you show and I think it is another one like i have only about 1.25 inch threaded and it is too small.
I have been looking every where on the web for a oil filler cap or a place I could find one, I am looking at the one you listed with the wings or cutouts in the design and I think the threads are about 1.25 inch OD and my inside Diameter is a lot larger than that. the oil filler cap I have is threaded and at least 3/4 inch too small, and I have no threads on the inside of my tube, look at the inside in my picture of the tube at the start of this thread.
Have you any way to list a model number or something I could search for on google
or ebay, sure would like to know something like that.

I have looked at a lot of 5.0 ford engines pictures and none of them have the long riser tube I have on my driver side engine valve cover, have you seen this long tube on a 5.0 engine valve cover anywhere , if so what year?
Sorry to be so much trouble but i have a hard time getting around so don't think it safe for me to try to go to a junk yard, I would not be able to do much searching as i would give out in just a few minutes and have to get back to my truck to rest, I can only go about 150 feet and that is all i can travel for a while without my wheelchair, I can use a walker , crutches, but only can go to the mailbox and back for now, but 5 years ago could not even turn over, legs numb from waist down then, so now still a happy guy , I am planning on sanding my hood and top to get rid of the rust and will use that standing time as a lot of physical therapy. I will work a while then rest and then try again, It is a workout for me just checking the oil )

So please Steve could you tell me what cap or do i need a plug for my 5.0 engine oil filler tube, Thanks for any help.Ed

[Steve83]

In the first pic in your second post, the thread is visible stamped into the tube below the lip & above the dent. In the next 2, the 4 stamped thread sections are visible inside the tube.

As my caption says, that cap came from an '87-up smallblock just like yours, my 4.9L, or any 5.8L. These are all mine:

[[
This is an identical engine still in a '95 F150 (same thing my engine came from):



This is a 5.8L from my '93 body donor:



This is an '88 5.0L that I put into a '75 Bronco and eventually swapped to a '90 CV intake:



Your filler neck looks to be normal height to me, but there are plenty of pics to compare it to.

[emedlin]

Thank you Steve83
I see the cap you were talking about on a filler tube like mine so I have ordered one from ebay, I thank you for the pictures and your kindness in taking the time to help me, Thanks again, Have a good week, Ed