pulled the head off my truck today. I was cleaning the gasket areas and noticed a spring behind the chain guide in the oil filter side of the engine.
http://i435.photobucket.com/albums/q...0936Medium.jpg

heres what i found where did it come from?

I was just wedged behind where the bolt goes into the guide....Right side of the truck for drivers seat

 

is the chain tensioner still intact? It's the only thing I can think of that would have a spring in the vicinity. Which would mean the tensioner head is probably (hopefully) in the oil pan. Were you pulling the head because you thought you had a headgasket leak and water in the oil? If so and the fact that if this is the chain tensioner you better take that timing cover off and check it for leaks as the chain most likely wore a hole in the cover.

 

x2 on spring in the chain tensioner assembly!

 

I wish i had my old one laying around to check to see what that spring looks like.

 

let me take a pic, and you will see one that grenaded. But, that spring doesnt look long enough to be from the tensioner, mine, uncompressed is like 3 inches long! let me fund the camer and ill show what went wrong a couple days ago in my runner.

 

Here ya go. Just did my timing chain, this guy was making some nasty noises.

Here you can see where the tensioner pole rode on the outside for a while.


here is kind of a view of how it was sitting. by the time i got to it the tensioner pad had completely flipped around, with the rubber side to the tensioner and the pole piece to the chain.


Here is the pile of remnants from the oil pan


And here is the spring in question. i think it looks longer than his, but not sure.

 

God I hate my camera.

 

tensioner is intact! i pulled head because i was getting anitfreeze in exhaust, noticed it yesterday hwhen i was hooking up to my trailer.... left truck running and could smell it! Nothing is broken, but I havent pulled the cover. I have 20 years as a mechanic, just not a yoda specialist. spring is about 3/8 diam and 1 1/2 long?

I dig that skull seanmearse!

 

if and when you find out what this is let us know. I just got doing a rebuild and cannot remember anything with a spring in it except the tensioner and valve springs.

 

that doesnt look like anything ive seen so i have a feeling it has been there since a previos valve job etc

 

well i appreciate the input,.. but i know i didnt come from the valve train. Fuel pump? How did these parts end up on top of the chain guides?
I will let you know WHEN i find out what it came from...

 

oil pump?

 

turn the macro setting on your camera on (flower icon). then hold lightly on the button till it beeps then push the rest of the way down and it should come out better.

 

Looks like a iol bypass spring from the oil pump

 

Fuel pump!!! I just had mine of today, when i put it back on after the t-chain, it was leaking, so i pulled it off to re-seal it, that is without a doubt, the fuel pump spring. small and with a good amount of tension.

On the skull rug, we have a guy out here once a month that sets up shop at the walgreens parking lot. it was only 60 bucks too. Its a 4'X6', made in turkey

 

no rotating button, all digital, ill go through the menus and see what i can find, thanks.

 

there is also the little metal piece, it appears to go with the spring. Im still thinkin fuel pump

 

you know what it might be, I am almost certain now that I think about it there is a spring on the top side of the plunger arm that rests on the cam eccentric. Easy to find out its only 2 bolts to take the fuel pump off.

 

Its possible it wasnt, on a previous pump. If its running now, see how shiny the top of your fuel pump is, if it looks clean and new, the old one propably failed and was replaced by the PO.

 

The pump was working, maybe from PO??? I was afraid i was going to have to pull front cover, but think its ok.