I have a problem with my 76 F100 302, I drove to the gas station ,filled up,drove 30 miles to pick up someone,cut it off and when I got back in it wouldn't start. Had it towed home,replaced the carburetor,it cranked up drove it around the block all seemed fine.next morning cranked it up moved it across the street, idel was high so i ajusted the carburetor,truck stoped ,carb was getting gas.I relized my plugs weren't firing so I replaced my plugs ,wires, ignition coil,ignition switch,ignition relay,and my distributor.
My buddy pulled my distributor out today,the oil pump intermediate shaft came part way out with it,before he could grab it ,it fell back in the engine. it fell into its hole not to the side.Made him retrive it,couldnt get it out with magnite so took off oil pan. He replaced the oil pump intermedeate shaft, BUT he took off the oil pump relief valve spring ( BUT I DIDN'T FIND OUT TILL MUCH LATER) He put the distributor back on ,the cap . Tried to crank it still nothing. Tested all wires found out every thing has power but the control module,replaced it . Tried to crank it turned over but has alot of back fire. It sounds like timing and /or carburetor. Before I mess with anything else I need to know what to do about my oil pump intermediate shaft missing its oil pump relief valve spring.when I found the valve spring my buddy said he could not get it back on and it didn't need it.HELP ,PLEASE tell me any usefull info I dont have a clue what it does or how to put it back in or if I need to any and all info would be greatly appreciated

 

I think you would get a better answer from the guys in the 302 forum but ill try to help.

Why did you disassemble the oil pump? You can remove the oil pump and drive shaft without touching any springs. It’s pretty simple on a 302. I would say you need to go spend $20 on a new oil pump. Then set #1 cylinder to TDC and put the distributor in with the rotor pointing to #1.
Your engine most likely won’t run because the distributor is out of time.

 

I didn't disassemble the oil pump,When my buddy took off my distributor the oil pump intermediate shaft came part way out ,then fell straight down the hole into the oil pan. When he put it back together he took off what my book calls an oil pump relief valve spring it was not in the oil pump,it was about two inches from the end when it was retrived from the oil pan.its the two pieces between the oil pump and the distributor, please help!

 

You need to put the oil pump and distributor back in the proper way and make sure the timing is correct.

How many miles on the 302? Have you ever replaced the timing chain and gears? If not, check the compression. If the compression is really low on some or all the cylinders, you may have some major problems.

 

I don’t remember there being anything between the distributor and oil pump besides a shaft. It has been about 2 years since I was messing with one though.

 

Hey BlueRanger94, thats the shaft he took out, on the shaft there is a little piece on it called an oil pump relief valve spring,he replaced the shaft but not the little piece.I didn't see how it looked before it fell down into the oil pan,just what it looked like when it was fished out,so I don't have a clue how to put it back on.He said it wouldn't fit on and it didn't need it.He's never even had a car ,so I can't belive a word.He is not allowed to touch my truck anymore .Everything he touches I have to fix.Before I set my timing and take her on the road I need to figure out what to do about his screw up.THANKS

 

If you are talking about the round lock-washer looking thing that presses on the pump drive shaft, I THINK (stongly) you will be ok without it. I believe this was used at the factory when the engine came down the line upside down to keep the shaft up to engage it in the oil pump, then again, it might be to keep it from bouncing out going down the road. However, I have mucho thousands of miles (and a few yards airborn) without one and have never had the rod fall out in my 400.

 

YES,that's the piece(round lock-washer looking thing). You said it presses on the pump drive shaft, my pitcher in the book shows the pump drive shaft inside the oil pump. Any idea how to get it back in? Which way it goes? How much of the shaft sticks up? Does a new oil pump come with those pieces? THANKS

 

I am going off what I know about my 400, but the theory is the same.

If you have to have the part, check a dealer, it may come with a new drive rod, but I have never got one with anything I have bought. The part does not go in the pump, it fits on the shaft right under where the distributor tailshaft lands.

To get it back together, set the engine on TDC. (#1 on comression and timing mark sitting on Zero, pull the plug and feel the compression as it comes around, heck, pull all the plugs so it is easy to turn over with a breaker bar.)

Stick a bunch of grease into the tail of the dist. Shove the drive rod in. The grease will create a hydraulic lock and keep it from falling out when you go to stab it. (Maybe this is why mine never falls out, hmmmm??? )

Now the fun part, when the distributor is stabbed it will rotate as the gears mesh, so you want to start with the rotor about 20 degrees counter clockwise ahead of where #1 wire will be with the cap on. (Sharpie pen time).

Drop it in and press down firmly but gently, rock the engine with the breaker bar to get the hex shaft to line up with the pump and she'll drop right in. Check to see if when back on TDC, and distributor is around 1/2 in its timing adjustment range, the rotor is pointed at #1 wire.

Observe oil pressure comes up at start up. (Confidence is high.)

Whew.....

Thinking more about it that washer on the shaft MIGHT go between the block and the pump, if it does I would be sure it was strictly an assembly aid. Go post in the 302 forum and get a quick answer as to whether to bother replacing it or not.

 

I do remember the washer on the shaft now but I still dont remember any spring.

 

It's not a spring, its called a "oil pump relief valve spring."My Haynes repair manuel calls it that,but it looks like a round washer with slits in the circle.I posted in 302's and over there It has been called other things.


https://www.ford-trucks.com/forums/s...hreadid=218416


Still a little lost!

 

You are being confused by the picture in the book.
The part (slip washer?) you lost in most likely not pictured at all. As explained before by others, the oil pump relief valve spring is a typical compression spring that would look similar to a valve spring but smaller. It is inside the pump and does not fall out, nor can it be removed from outside the engine or oil pan.

The 302 forum and an experienced friend of mine also confirm this part is an assembly aid and is not required for operation. Just try not to lose the pump rod everytime the dist. comes out. Hopefully you will have little reason to take it out again.

Put it back together per directions and stop worrying!

If you miss stabbing the distributor and don't want to take it out again, just move the plug wires around to match... the engine won't care!

 

THANK YOU !!!
This Ford Truck Enthusiasts Forums is the best place in the world. You guy's were right. My husband and I have been so lost. Thank's to you we are back on the road.
The distributor was 180. Fixed that ,got her started. Timing and carb were way off. Fixed that,now we are back on the road. THANK YOU !!! THANK YOU !!!

 

And all this time I thought Disneyland was the best place! You are very welcome, glad it worked out.