Just did a 22r Timing chain with a new/used timing cover (the owner let the timing go too long and it did the old "wore the groove in the cover" trick. I did the water pump, all seals, timing set, new radiator, crank seal, timed it set the dizzy and fired it up. The timing chain was set to specifications at TDC and all that. I did not put a new oil pump in however I did replace the little rubber seal. I did not adjust the valves nor did I check them as of yet. The motor fired right up after the job but on low idle I get the noise in the video below. It's as if there is not sufficient oil pressure. I am not sure what is going on. I posted a video of the noise to see if any kind soul out in YT land can help me out.

 

valve cover too tight and rockers "rubbing" on cover maybe?

 

top oil pump bolt ...
are you sure you installed the correct one ?

this bolt hole is a "threw" hole ..


if it is the incorrect bolt ..



it will contact the tensioner , and inhibit it movement creating the exact sound you have ...



.

 

pretty sure I did. I drew out a schematic on a piece of cardboard and pushed the bolts through the respective places as I pulled them out. I was pretty careful about that. I suppose there is always a chance it got mixed up but I seriously doubt it.
why would it only rattle like that on idle?

 

if the wrong bolt in in there .. it actually contacts the tensioner and holds it in place .. NO MOVEMENT taking up the slack in the chain .. on accell .. chain is tightened by force , but will still be noisy , but with the noise of the engine , you wont hear it as much

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well, what do you suggest I do??

 

back up for some help??

 

just back off the top bolt as far as you can ... it'll leak , but at least if it quiets down .. you'll know what the problem is .. if not then clean up the oil , seal the bolt again , and tighten it back up .. and move on


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Thanks for your help Slacker..
I suppose I have to pull the pulley to get to it? You dont happen to have a photo of the correct bolt for that hole. One that shows the approx. size, length and all that??

 

back up for some more help...

 

I agree with slacker, check the top oil pump bolt. If that is not it, take off the valve cover and see if the chain is rubbing on something. Maybe one of the guide bolts? What did you torque the tensioner to? Engnbldr says not to overtighten the tensioner or it will stick, which would probably have the same result as putting the wrong bolt in the top of the oil pump.

Another thing to think about: I believe that in 1983 there were two different timing chain setups. One was the older dual row chain with steel guides and one was the single row with plastic guides (which is probably what you have). Could you have got some mis-match of parts causing the chain to rub on something?

 

Is there any other issue this could be besides an over torqued bolt or a bolt in the wrong place??
As far as the 83 I am sure this was the single row chain. I tore the thing down and built it back up. The dual row ended in 82 I believe.

 

Might be as simple as adjusting the valves. I would try that first since it probably needs to be done any ways. Plus it's easy! I think on the 22re it's .008 intake and .012 exhaust when the motor is hot. Did you use a new valve cover gasket when you did the job? if not get one they're cheap and can help with the over tightening issue when installing the valve cover. Just my 2cents.

 

was the truck running when they brought it to you or was it towed .

does sound like its at the valve cover..

 

If I have my information correct, 8/83 is when they switched to single row. Some 83 and 84 models have the old block with single row plastic guides. The older timing chains, guides, cover, etc. will bolt up making an easy conversion to a dual row chain with steel guides. I think the oil pump and drive gear were different, also. This is why I think it could be a possibility that you have some mis-match of parts, but I would check the other things first.

Did you buy your chain in a kit? Did your new chain come with steel guides? Do you know what year your new cover came from?

 

did you put your hand on the valve cover to see if somethings tapping on it .

 

All great questions and comments!!
I did put my hand on the cover and it seemed as if the sound was coming from the front of the valve cover (under the 22r sticker.)
I did put a new OEM valve cover gasket on after this timing chain R&R.
As far as the oil pump I kept the old one that was on it before I did the conversion. I cleaned it and put a new rubber seal in. I did not replace the oil pump.
The truck was not running when I got it. The owner called me and told me it was overheating and there was a chocolate shake in his crankcase. It sat for 3 months and in that time the owner periodically started it to get the oil into the top of the motor to keep it from pitting.
When I got it I deduced it was the timing cover being worn and after the tear down this was the case.
My next job on this rig is a valve adjustment. It is an 83 22r.
I am sort of stuck as to what is going on with this noise......

 

I am at my computer at the moment and the rig is about 30 miles south of me and I can't for the life of me remember if the oil pump is behind the crank pulley. Do I have to pull the crank pulley off to get to that bolt on the oil pump to back it off to see if that is the problem??

 

you can loosen the bolt slacker is talking about but you cant pull it completely out, because of the pulley.

 

any other ideas about the noise in that vid??