20W-50 in a 32k mile car? I can understand running a thicker oil, but that seems overkill on a relatively young and tight engine. I'm running M1 5W-30 in my 61,000 mile '86.

 

Maybe what you could do, is drain and re-fill. But pour on all the rockers and springs. It's gonna make a hell of a mess unless the valve covers are on. Then fire it up immediately afterward.

 

try pouring oil on the rocker tips while its running and see if the sound disappears

 

The car only gets driven on hot days. Well, 65* and better.

I've always run it, never a problem.

 

It is not that your not running i t long enough - I am asking about the dist seated properly in the pump primeing shaft engaged - I had forgot to tighten my dist clamp and when I got on it I lost Oil Pressure for a few seconds and it got noisy up top

 

I only took the cap off the dist to take the plenum out, I did not have to take the dist itself out.

It is seated flat and locked down exactly where it was before I did the injector swap.

 

If you dropped something down one of the intake tubes (like a bolt/nut), could it make it into a cylinder? If so, can loose objects be checked for thru the spark plug holes? (This probably would show up under a compression test... but just in case.) I'm wondering if it's being banged (smashed) on each upstroke.

edit:
I found the video. I don't think you dropped anything in a cylinder. It sounds like dry valve train noise to me too... like the lifters/rockers aren't being coated with oil. It also struck me that no oil flew around when run. I've let mine set for a couple of weeks and it sounded similar. I only think it took about 2 seconds to stop (before oil fed).

Here's a dumb question, did you drain the oil and not put any back in? Or could you be short quite a bit? Or be missing the drain plug? You might try spraying the rockers/heads with lightweight oil (WD40) and retry for a short burst. If that helps, try running it for about 10 seconds... I don't think it sounds terminally damaging.

It could also be very loud injectors!!! Maybe the whole batch is "defective" (or noisy). When I bought my L98 years ago, I took it to two different muffler shops and a mechanic. I insisted their must be an exhaust leak, bad lifter, etc... I'd had a hard time believing injectors could be soooo noisy!

gp

 

Pull the spark plugs if there's some thing in one of the cylinder the plug will be beat all to heck. With batch fire injectors it does not mater how there plugged up.
David

 

i can't believe that someone else has the same kind of luck i have i know exactly how you feel after watching the video, i don't think its a rod knock. i swear i've heard that noise before at some point, just can't place it. the closest i can remember is mine made a noise somthing like that and it turned out that a spark plug had come loose and i could hear the compression blowing past the plug.
what about running a leakdown test guys? i always do that and a comp test @every 6 months on mine to check the condition of my motor.
oh and i just remembered, when i pulled the dart heads of my 454 12.5-1 motor to put on another 454pump gas shortblock i bought. i found the top of one of the pistons had a bunch of marks where something had gotten into the cylinder and was beating to death. the head had scars on it too in that cylinder but the motor always ran fine and never missed and i never heard a thing. i would have never known about it had i not pulled the heads. the valves were fine. go figure?????
i can't wait to hear the cause of your problem.
best of luck and i wish you all the best.

 

I don't understand: You changed the lifters s too?...or you are planning to change the lifter in an immediate future?

I had a similar noise when I removed the SR to change the Intake gaskets 2 years ago. I removed also the 16 roller rockers arms (just to seal with "The Right stuff" sealer the rocker studs). When I assembled back, I set the preload on the rocker on 1/2 turn (it was 3/4).
I made it perfectly with religious attention to every detail.
Obiouvsly the lifters were bleeded.
When I restarted the car I had this noise for 2 or 3 mins.
I have much more experience on harley motors and when you work on cams, lifters, adjustable pushrods, rocker arms etc.. you have allways 5 to 10 mins where the lifters are a bit noisy.
So I had no afraid to hear a similar noise on the chevy engine.
Only 2 to 3 mins and the car was perfect without noise at all.
Obiouvsy I can't say: "let it run for 5 mins" if you are afraid to do so...
The noise it seems similar to my noise I had.
BTW, the noise I can hear from the video can be very altered and different than mine.
-Beppe-

 

I'm confused.....Is it possible to changes the lifters without removing your intake base.....thus having to remove your distributor?

Have you tried pulling your distributor and prime the motor to see if you are getting oil up through your rockers?

 

I have some Marvel. I can pour some over the valves and springs and let it run till the oil pumps up? Doesn't seem to be the injectors.

Maybe I just need to let it run a little more? If something breaks, at least I found it.... that's the hard way....

I'm going to start with pulling the plugs this weekend see what I get.

 

I changed the lifters when I did the work.

 

I didn't do that, however, I let the car sit for months at a time and never had a noise like this.

Would 20-50 Mobil 1 act any differently? Why would it make noise this time, and not last time(s)?

 

Have you checked the flexplate + tc yet? I know PeteK mentioned it. After hearing your video, it sounds more like an external noise than a rod knock.
So I'm suggesting you check it.

It's too loud and fast to be a rocker arm IMO. Either way, you'd be able to pick the bad one in a half second.

-- Joe

 

I don't have the time to do this until Saturday...I hope. Depends on the kids softball practice... I'm going to really try to get into it on Sat.

The sound does not appear to be coming from the TC area, seems to be concentrated to the top of the motor.

 

This may sound stupid, but why not try a thinner oil. 20-50 sounds a little extreme to me. Maybe try dumping what you have, look for metallic particles in the old oil and try 5-30. Best of luck with your problem...I feel your pain!

 

Wait, do you mean you changed the lifters when you did the injectors and stuff, or previously?

 

I did the cam, lifters, heads, rockers, chip, ect.......

After I got it all together I found out the injectors I purchased from someone on the forum were actually 22 lbs, not 24 as we originally thought.

22 Was too small and I needed to get bigger injectors.

That's why I changed the injectors, and that's when the noise started.

 

Jsup,

it sounds like valvetrain noise/ lifters that have drained down to me to. The are a couple of things I'm not clear on though, one is have you seen oil pumping out of the pushrod holes during these test runs? Until it starts to flow, you can be sure the lifters aren't completely pumped up/ but flow doesn't gaurantee that they are. I agree with pulling the plugs first to see if any of them are beat up first, but on this subject, did you come up missing any nuts.washers, etc. during the job? If not, It's LESS likely that something droped down a cylinder, but not impossible. Keep in mind it only takes one quarter to one half of a turn on a rocker adjusting nut to make a lot of racket, and thats only about .007 to .015 of an inch (based on 28 threads per inch), which is going to be real hard to see with your naked eye while everythings moving. When you say there is no movement on any of the rocker arms, was this check done on each rocker with that lifter on the base circle of the cam (valve closed)? The springs will take up that play completely on any that are even a little open. Also, and forgive me if I'm wrong about this (it's 5:00 am and I wanted to post before I go to work, so I don't have time to look it up, so research this one before taking any action on it), isn't there some issue with the Super Ram intakes needing spacers (or different O-rings) on the injectors or something to keep the injectors from going to far into the hole? I've never run one, so I'm just trying to recall what I've read here on the forum. And last, I'm really confused by your later answers on wether or not you changed lifters during this project. I thought the only things changed were the injectors and the chip? The post "I changed the lifters when I did the work" makes it sound like you did, and if so, I would not be at all suprised to here it make this noise, and running it for really short burst's like this isn't going to pump them up. Sometimes, even after soaking them in oil prior to installation, depressing the lifter plunger several times while submerged in oil, etc, you will still have to back the rocker nut off with the engine running to get the lifter to pump up and start oiling, then re-adjust the valve lash. All this last part only applies if you have changed the lifters though. Hope this helps....