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| Push rods not quite spinning https://slantsix.org/forum/viewtopic.php?t=65974 |
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| Author: | CoyoteDan [ Sat May 15, 2021 9:13 pm ] |
| Post subject: | Push rods not quite spinning |
So I got the engine idling. It ran for about ten mins when I noticed that the push rods for the first cylinder were barely spinning. Should I replace the lifters and push rods or is it too late for new lifters? Did I wreck my cam? Thank you |
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| Author: | slantzilla [ Sun May 16, 2021 11:50 am ] |
| Post subject: | Re: Push rods not quite spinning |
Turning slowly or not at all? If they're just turning slowly I wouldn't be too concerned. |
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| Author: | CoyoteDan [ Sun May 16, 2021 1:22 pm ] |
| Post subject: | Re: Push rods not quite spinning |
At first it was slowly and it was only the #1 intake but then the #1 exaust started doing it too. As it continued they seems to spinless and less. I didn't notice oil trickling down those 2 push rods like the others either. Could it possibly be an oiling problem? |
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| Author: | Doctor Dodge [ Sun May 16, 2021 3:14 pm ] |
| Post subject: | Re: Push rods not quite spinning |
Slow spinning is OK... no spinning, you should swap in another lifter. (if possible) Break-in the engine and do a final valve clearance adjustment and write down the settings, then re-check clearance at the first oil change. DD |
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| Author: | CoyoteDan [ Sun May 16, 2021 3:34 pm ] |
| Post subject: | Re: Push rods not quite spinning |
Ok I will fire it again after work. Quote: write down the settings, then re-check clearance at the first oil change.
When you say setting are you just referring to the valve clearance? Am I trying to see If there is a change from break in to first oil change?DD Thank you |
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| Author: | Doctor Dodge [ Sun May 16, 2021 6:54 pm ] |
| Post subject: | Re: Push rods not quite spinning |
Yes, make note of the valve clearance, ("settings") usually .010 intake and .020 exhaust on a stock cam. You may see a .001 or .002 change as everything breaks-in. If the clearances change a lot more then that, start looking for the problem. DD |
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| Author: | CoyoteDan [ Sun May 16, 2021 9:42 pm ] |
| Post subject: | Re: Push rods not quite spinning |
Ok will do. I fired it up again and both the rods started spinning just slowly. I finished the cam break in but at the 20 min mark the engine reved up and then died. I set the lash again now that the motor was hot. Started it to idle and I'm getting a knocking and rough idle. It's and Rv10 or OCG #2106 the cam card said to set to .015 for exhaust and intake. Could the valve lash be off? |
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