Cyclone15 Posted September 15, 2019 Share Posted September 15, 2019 Just swapped engines in my 85 Dolphin, put in a 22RE out of an 89 pickup that was supposedly been rebuilt 25k miles ago. Runs good and cool but notice a mild knock at lower RPM's on acceleration, once at a higher RPM it foes away. It's coming from the rear passenger side towards the top I think. Don't have a stethoscope to pinpoint. Thought maybe I had the valve cover to tight so loosened the nuts up and it didn't make a difference. Even swapped valve covers in case the original was warped in some way, still no difference. Timing chain and guides look fine. Valves are all adjusted to factory specs, I'm at a loss. I have attached a short video so any suggestions I'm all ears. Thanks IMG_0623.MOV Quote Link to comment Share on other sites More sharing options...
Maineah Posted September 15, 2019 Share Posted September 15, 2019 Pull spark plug wires off one at a time (from the cap end) rev it the same way and see if one makes it go away. Quote Link to comment Share on other sites More sharing options...
Cyclone15 Posted September 17, 2019 Author Share Posted September 17, 2019 Pulled the plug wires one at a time and it made no difference in the sound. Quote Link to comment Share on other sites More sharing options...
jeff thomas Posted September 18, 2019 Share Posted September 18, 2019 sure that aint coming from your torque converter on your auto tranny? Quote Link to comment Share on other sites More sharing options...
Cyclone15 Posted September 20, 2019 Author Share Posted September 20, 2019 I'm thinking the same thing Jeff, gonna get underneath it tonight and investigate. Quote Link to comment Share on other sites More sharing options...
Maineah Posted September 20, 2019 Share Posted September 20, 2019 To me it sounds like a rod knock. Automatic transmissions don't make any noise even when they are about to quit converters don't either if the converter bolts are not tight that is possible but I still think it's a rod knock. Try your plug wires again even if it's a slight difference there is a problem. Bottom line if it is a rod knock it will get worse. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.