rocker adjustment

Slyclone

Well-known member
Re: rocker adjustment

Sorry guys, that's what I had in mind the radiator pressure test. ( what my mechanic buddy has)

For some crazy reason I thought it was called a leak down test.

Looking for the pump, radiator cap/gauge to pump air into it. Almost like a bike pump.
 

Slyclone

Well-known member
Re: rocker adjustment

Found a hose on the lower intake hissing. Looks bad.

Going to need one of them up by the coolant sensor asap to determine any further leaks
 

Don W.

Stab it and steer it
Re: rocker adjustment

After doing what others have suggested, and fixing the hose leak, and IF no leaks are found but you're still not sure try this:

Fill the rad, run engine to warm it up enough to open the t-stat and top off the rad. Assuming the header tank is connected have some water in there also. Go drive it. Maybe even step on it if your want. Come back, let cool a bit, and check the rad and header tank. They should be exactly where they were when you started. To double check this let it sit overnight and top off the rad again if necessary. Now drive it again. You should see no changes it water level anywhere. If water is "lost" then it has a leak somewhere. You also may notice you've "gained" water in the header tank. Not good either. A truck that doesn't leak can drive "forever" without using water as long as the header tank is kept full. A "normal" truck will loose tiny amounts of water from the header tank but it will take weeks of driving to see much difference.

So, IOW, in the course of normal driving you're using water then there is something wrong somewhere.
 

Slyclone

Well-known member
Re: rocker adjustment

Don thanks for the reply. I just discovered my coolant return line is kinkedI'm going to need one of those coolant is bubbling out of that.I soap tests rather abd the soap is bubbling out of the coolant line which is kinked.

I did go and get a rad. Cap pressure tester and pressureiz system. I have a few hoses that were not fully tight. Seems like they are actually beat meaning need new ones. The area which contacts steel has been expanded. Either from rust, or corrosion. Example, water pump hose area which contacts pump is swollen. The intake water jacket is swollen. Those hoses are in need of replacement.

Once I put the 15 psi in the system it dropped down after 15 min. So I knew I had problems. Eventually I broke out the soap detector and got to work.

Air/coolant is all the sudden escaping from the coolant return hose which was installed wrong and previously kinked. Me taking it off, and putting it back on was all it took to kink it further to create a leak.
 
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Slyclone

Well-known member
Re: rocker adjustment

Started another task which is gain entry to the dipstick/lower block area. Task started with removing a few covers and dropping the starter.



Next was on to locating and ID the plug in the block. First off, It was unidentifiable. I had to dig out my book and look to see if it was before or after the dipstick. Then call a member back up and just ask him where exactly it was. After washing half the bottom of block out with a can of brake cleaner I was able to find the plug. Now on to finding the fitting to go into it.



Kinked bad
Metal is torn
 

Slyclone

Well-known member
Re: rocker adjustment

One bent line a horse shoe is the one I removed which is kinked. Next in line is my " back up " that the banjo just rotted off, and next in line is the new one to put on... Almost there...
 

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Don W.

Stab it and steer it
Re: rocker adjustment

While you're at it you might want to replace that red hose. It's 25 years old. Better now then when it's on the truck.
 

Slyclone

Well-known member
Re: rocker adjustment

Trucks back together. Still steams/smokes white a bit. Not as much at first but still occurring.

Got all my leaks taken care of. Hoses, hoses and more hoses. Pressure tested once again, the heater core must of went as well so I had to hurry up and go get one of them. Installed that and pressure held good.

The problem I am seeing again is there's smoke coming out of oil fill tube if I rev truck up. Wondering if this is the blueish gray smoke I am seeing?

A cylinder is weak or a ring? Back to the bottom of the engine? I idled the truck for about a half hour while I did the coolant thing.. Filled the block back up and the rest of the system. I might take it out for a spin tonight but I'm not too excited all the sudden.

I guess I'm back to compression testing. And not pressure testing.
 
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Couger1968

Dazed and Confused
Re: rocker adjustment

If you are holding coolant pressure I think it is just moisture still in the system. The blow by could be a few things, possibly worn rings. I guess I would drive it. I would not think having blow by would cause anymore damage just maybe a reduction in power. Is your pvc system correct?
 

Slyclone

Well-known member
Re: rocker adjustment

Pcv is correct. Before all this mess I bought a new valve. I have the original T as well as original valve going to throttle body. And a replaced valve OEM delco part ( new part not 1992) which routes to my kenne bell cold air intake.

I pulled the oil fill cap off and saw another collection of yellowish moisture gunk under the cap. Still that.much still in the system?

My compression tester is JUNK. Pretty sure if I run that test once more I might find out I still need to start back over...
 

Couger1968

Dazed and Confused
Re: rocker adjustment

I don't see how you could be getting coolant if it held as long as you said. It takes awhile, lots of lines and radiator to flush. My trucks PCV has a t with one valve going to the throttle body and the other side has a valve and goes to the intake tube. The other side of the engine has a hose hooked to valve cover that went to the air box.
 

Slyclone

Well-known member
Re: rocker adjustment

Drove truck. Went and put some fuel in it. Truck seems to be same condition as when I first started.


Got it timed correct. Feel it went out a little bit so I went to disconnect tan wire with truck running and just died. Cut out. Shut off. ? Normal..?

Boost is still limited.

I think my real issue is a ring on the piston or maybe a few are broken. I have not done another compression test yet because don't have a gauge.
 

Couger1968

Dazed and Confused
Re: rocker adjustment

I disconnect the wire and start mine and have never had it die. I don't think rings would cause that. I am not saying that isn't an issue, just I think something else is also going on also. Did you pressure test the air side? Did you get some sort of scan tool are the sensors reading properly?
 

Slyclone

Well-known member
Re: rocker adjustment

No no. I disconnected the tan wire with it running and it just died out. In effort to reset the timing do you disconnect, start and set or start, disconnect set?

I believe the low boost issue and all is now related to the rings on the pistons. I am visualize one or two broken. If the coolant got inside the cylinders and was forced past the rings I'm sure they are all compromised.

I told some one else that and the think my theory is off again.

I mean what else is left to pick out?
 

Couger1968

Dazed and Confused
Re: rocker adjustment

I disconnect mine then start it. I set it, loosening the distributor with it running. I then lock it down and make sure it is still where I want it. It will sometimes change a little as you tighten it because you are pushing the distributor down a little. I shut it off plug my wire in, reset my code by pulling fuse. I have a hand held scanner and an adjustable light , so I will often check it and make sure it is at where the computer said it is. When I first got my truck running I didn't check and I set my timing normally, but when I read rechecked it it was off 4 degree. Come to find out the ignition module I was told to buy wasn't the right one.
 

Couger1968

Dazed and Confused
Re: rocker adjustment

As far as the rings, I would see if the auto parts store has something you can borrow. I don't know if a simple compression tester or if you need a leak down tester is the tool you would want. I think leak down is more for valves, but I could be wrong. At least it would ease your mind. I think if coolant got in the cylinders enough you would have bigger problems.
 

Don W.

Stab it and steer it
Re: rocker adjustment

As far as the rings, I would see if the auto parts store has something you can borrow. I don't know if a simple compression tester or if you need a leak down tester is the tool you would want. I think leak down is more for valves, but I could be wrong. At least it would ease your mind. I think if coolant got in the cylinders enough you would have bigger problems.

Leak down works for both. I've seen it find a bum valve on a super comp dragster and it found a broken ring land in my truck. In each case it helped eliminate the other issue. Valves vis rings and rings vis valves.
 

Slyclone

Well-known member
Re: rocker adjustment

Haven't done a leak down. Not sure if I know what that test is as I used the word before for using the radiator pressure tester.

I did most the tests. Just not a follow up compression or this leak down?


Just got off the phone with a forum member he suggested I re do timing again. The low power could be timing related.
 
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